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	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=1933:_Santa_Facts&amp;diff=385698</id>
		<title>1933: Santa Facts</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=1933:_Santa_Facts&amp;diff=385698"/>
				<updated>2025-09-01T13:35:00Z</updated>
		
		<summary type="html">&lt;p&gt;SMGmsgsgd: /* Explanation */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 1933&lt;br /&gt;
| date      = December 25, 2017&lt;br /&gt;
| title     = Santa Facts&lt;br /&gt;
| image     = santa_facts.png&lt;br /&gt;
| titletext = We've gotten him up to 20% milk and cookies through an aggressive public campaign, but that seems to be his dietary limit. Anything above that and he starts developing nutritional deficiencies.&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
This was the second [[:Category:Christmas|Christmas comic]] in a row after [[1932: The True Meaning of Christmas]]. It was released on Christmas Day in 2017&lt;br /&gt;
&lt;br /&gt;
The comic provides some dubious &amp;quot;Facts&amp;quot; and &amp;quot;Figures&amp;quot; of the creature known as &amp;quot;Santa&amp;quot;. We can see from the drawing that this is obviously meant to be either {{w|Santa Claus}} or a parody of Santa Claus. It is the third comic using [[:Category:Facts|Facts]] in the title. Another fact comic was released six years later as the Christmas Day comic of 2023: [[2872: Hydrothermal Vents]]. Here it was an Ocean fact about the demise of Santa Clauses...&lt;br /&gt;
&lt;br /&gt;
This comic is reminiscent of the [[:Category:xkcd Phones|xkcd Phones series]].&lt;br /&gt;
&lt;br /&gt;
'''Type: Flying/Psychic'''&lt;br /&gt;
:A reference to {{w|Pokémon}}. The {{w|Gameplay_of_Pokémon#Pok%C3%A9mon_types|type}} of a Pokémon describes and determines its abilities (including attacks), affinities, and general nature. In most stories Santa Claus rides a sled pulled by flying reindeer (all other [https://bulbapedia.bulbagarden.net/wiki/Flying_(type) Flying-type] Pokémon fly under their own power) and some kind of magical power. Psychic possibly refers to his ability to know a child's activities and behavior, including when they are {{w|Santa_Claus_Is_Comin%27_to_Town| sleeping or awake}}, implying a psychic ability to read minds. There is a Pokémon based on Santa, [https://bulbapedia.bulbagarden.net/wiki/Delibird_(Pok%C3%A9mon) Delibird], although it is Ice/Flying instead of Flying/Psychic.&lt;br /&gt;
&lt;br /&gt;
'''Plural: &amp;quot;Santa&amp;quot;'''&lt;br /&gt;
:The plural form of 'Santa' conveniently parallels that of 'reindeer' (as well as those of all species of Pokémon and the term &amp;quot;Pokémon&amp;quot; itself). In real life, &amp;quot;santa&amp;quot; means &amp;quot;saint&amp;quot; in most {{w|Romance languages}}. However &amp;quot;santa&amp;quot; is not plural in any of these languages (for example, in Portuguese the proper plural would be &amp;quot;santos&amp;quot;). Under the most common English approach for making a plural noun, Santa would have a plural of &amp;quot;Santas&amp;quot;. Taking &amp;quot;Santa Claus&amp;quot; as a separate noun, the plural would be &amp;quot;Santa Clauses&amp;quot;. (Or, possibly, &amp;quot;Santas Claus&amp;quot;.)&lt;br /&gt;
&lt;br /&gt;
'''Active warrants: 5'''&lt;br /&gt;
:There is an active warrant for Santa's arrest in 5 jurisdictions, presumably for breaking and entering or for operating a flying sleigh without the proper licensing, while drunk, or over the speed limit.&lt;br /&gt;
&lt;br /&gt;
'''Lubricated for easy passage down chimneys'''&lt;br /&gt;
:The diagram indicates that Santa's attire is lubricated to ease his traditional method of ingress and egress. This explanation is incomplete, however, as a great many chimneys have cross-sectional area substantially smaller than that of a normal human body, let alone a portly one, as commonly described. The common presence of chimney caps, fireplace dampers, and the like would also impede Santa's passage down a great many chimneys. That said, if we take the classic poem &amp;quot;{{w|A Visit from St. Nicholas}}&amp;quot; into account, the statement is technically true, just &amp;quot;lubricated&amp;quot; with magic rather than physical lubrication. A less classic example of Santa going down the chimney with help of magic can be seen in The Santa Clause [https://www.youtube.com/watch?v=WBaQwGTHCL8]. &amp;quot;Lubricated&amp;quot; is also a reference to lubricated condoms - see &amp;quot;Ribbed&amp;quot; below.&lt;br /&gt;
&lt;br /&gt;
'''Vertical Leap: 14 Miles'''&lt;br /&gt;
:For a non-magical being or object, a vertical leap of 14 miles (~23 km), ''ignoring air resistance'' would require an initial launch velocity of slightly more than 2180 feet per second (665 m/s), somewhat over twice the speed of sound. Achieving this velocity by means of bending then straightening the legs would require an acceleration of roughly 25,000 G, placing extraordinarily high demands on the strength and durability of the legs. As Santa does not have a particularly aerodynamic shape, air resistance would increase the launch velocity and launch acceleration requirements substantially. Santa may be able to overcome these problems due to his magical nature; however, there is clearly still a limit to what this can achieve, as there is a maximum to his leaping ability.&lt;br /&gt;
&lt;br /&gt;
'''Sleigh Flag of Convenience: Panama'''&lt;br /&gt;
:The {{w|Flag_of_convenience|Flag of Convenience}}  identifies the country in which an ocean-going vessel has its registration information. Panama maintains one of the top three open registries. Owners of a vessel may choose to use an open registry to avoid labor or safety regulations of the owner's country. They may also choose such a registry to help obscure ownership of the vessel. Which concern applies in the case of Santa's sleigh is not stated, or (more likely) not known. It may also be the only type of registration available, since the north pole is not in any country, so there is no &amp;quot;owner's country&amp;quot;.&lt;br /&gt;
&lt;br /&gt;
:However, a ship's flag state exercises regulatory control over the vessel and is required to inspect it regularly, certify the ship's equipment and crew, and issue safety and pollution prevention documents. One suspects that this does '''not''', in fact, happen regularly with Santa's sleigh. Also, as a ''flying'' sleigh, the registry for ''ocean-going'' vessels is not applicable. Instead, it would be registered as an aircraft, with the FAA (in the U.S.), EASA (in Europe), or the equivalent in another country. Civilian aircraft have their registration number painted on their tails, but are not required to display a &amp;quot;flag&amp;quot;. (However, U.S. Airways used a stylized version of a U.S. flag as a corporate logo prior to its merger with American Airlines.)&lt;br /&gt;
&lt;br /&gt;
:The country being Panama may be a reference to the {{w|Panama Papers}}.&lt;br /&gt;
&lt;br /&gt;
'''9th in Presidential Line of Succession'''&lt;br /&gt;
:The {{w|United_States_presidential_line_of_succession|Presidential Line of Succession}} specifies the order in which persons may become or act as {{w|President of the United States}} if the incumbent President becomes incapacitated, dies, resigns, or is removed from office. Having Santa as the 9th in that order would place him above the {{w|United States Secretary of Agriculture|Secretary of Agriculture}}. An alternative interpretation would hold that Santa '''is''' the present Secretary of Agriculture, {{w|Brooke Rollins}}.&lt;br /&gt;
&lt;br /&gt;
:Assuming Tom Vilsack is not Santa Claus, Santa is likely ineligible for the Presidency, as most origin stories of Santa have him a natural-born citizen of a European country (or of Turkey) rather than the United States.  Alternately, Santa might be old enough to qualify under the &amp;quot;citizen at the time of the adoption of this constitution&amp;quot; clause, although in light of the information that Santa is actually an arthropod and/or a vampire (see below), his status as an American citizen is dubious. &lt;br /&gt;
&lt;br /&gt;
:Alternatively, Santa Clause is in North Pole Presidential Line of Succession - indicating, that there's at least 9 people more high-ranking in New Year hierarchy than Santa Claus himself. As such, it's likely that there are many Santa Clauses - though it's unclear if people in succession line are other Santas, or are [https://en.wikipedia.org/wiki/Santa_Claus#Related_figures regional equivalents of Santa (e.g. Ded Moroz, Father Christmas, Joulupukki, Sinterklaas, etc)]. This is likely reason why &amp;quot;Plural&amp;quot; is explicitly written in.&lt;br /&gt;
&lt;br /&gt;
'''Not technically an insect &amp;amp;#8212; actually an arthropod'''&lt;br /&gt;
:This &amp;quot;fact&amp;quot; uses an absurd misconception to correct a relatively common misconception. Absurdly, Randall has mistaken Santa for a lobster, given his bright red coloration and the surname Claus (which is pronounced the same as a lobster's &amp;quot;claws&amp;quot;). This may be an homage to the film the Nightmare Before Christmas, where Jack Skellington believes Christmas Town is led by &amp;quot;Sandy Claws&amp;quot; who is &amp;quot;like a lobster, huge and red&amp;quot;.&lt;br /&gt;
&lt;br /&gt;
:There is a relatively common misconception that lobsters are insects. In fact, lobsters are crustaceans, but there is a kernel of truth to the misconception, as crustaceans and insects are related (both are arthropods).  Thus, the &amp;quot;fact&amp;quot; states that Lobster-Santa is not technically an insect; he is actually an arthropod. &lt;br /&gt;
&lt;br /&gt;
'''Only known vampire able to enter house without being invited'''&lt;br /&gt;
:In traditional vampire folklore, a vampire {{tvtropes|MustBeInvited|cannot enter an abode without an invitation from the owner of the same}}. Santa, however, seems to be able to enter houses even without explicit invitation (although plenty of children do welcome him, either via written notes or by their general sentiments), so if he is a vampire he is the exception to that rule. This juxtaposes interestingly with the previous point about his arthropod nature.&lt;br /&gt;
&lt;br /&gt;
:His being a vampire is perhaps related to his dressing all in red, and alleged immortality. &lt;br /&gt;
&lt;br /&gt;
'''Works with Alexa'''&lt;br /&gt;
:May have any of several meanings, including that Alexa (Amazon's virtual assistant) is Santa's colleague, that Santa uses Alexa in his work, that Santa is somehow functionally compatible with Alexa, or a reference to various Santa-themed 'skills' that Alexa can be associated with. A common advertisement states that a product is compatible with Amazon's smart device, Alexa. But it could also be a play on the idea or fear that Alexa may be used to spy on people from the privacy of their own homes, much like what is claimed of Santa (&amp;quot;he sees you when you're sleeping, [...]&amp;quot;). Finally, several skills designed to entertain users of Alexa are themed around Santa Claus, including asking Alexa where Santa is on Christmas Eve, whether or not you've been naughty or nice, or even leaving the jolly old elf a voicemail.&lt;br /&gt;
&lt;br /&gt;
'''Ribbed'''&lt;br /&gt;
:A reference to condoms, which have ridges or ribbing in order to promote pleasurable stimulation during coitus (see &amp;quot;Lubricated&amp;quot; above). This also puns on the fact that, as a humanoid, Santa presumably has a rib cage. (This might directly contradict the claims about his being an arthropod.)&lt;br /&gt;
&lt;br /&gt;
'''IUCN Red List: Critically endangered'''&lt;br /&gt;
:The [https://www.iucn.org/about International Union for Conservation of Nature] (IUCN) monitors the size and viability of populations of organisms; 'critically endangered' marks a population as being highly susceptible to extinction. Santa, being one (or possibly two, if we include his wife) of a kind and lacking any offspring (and, indeed, likely being incapable of effectively producing any), will most likely be the last member of his population; thus extinction will arrive with his or his wife's death. Note, however, that the presence on the Red List implies that &amp;quot;Santa&amp;quot; is a biological species, not a fantasy, robot, or other non-biological entity. This is consistent with Santa being an arthropod and/or vampire, but would suggest that there are many specimens of Santa, while other 'Facts' (such as having a definite ranking in the Presidential Line of Succession) suggest Santa to be a single individual. &lt;br /&gt;
&lt;br /&gt;
'''Diet: 80% Reindeer'''&lt;br /&gt;
:A mocking allusion to Santa Claus's sleigh, usually pulled by reindeer. Usual folklore depict Santa Claus being extremely fond of his reindeer, thus making it a humorous contrast to suggest he'd be ''eating'' reindeer meat on a daily basis.&lt;br /&gt;
&lt;br /&gt;
'''Liability Insurance: None'''&lt;br /&gt;
:As a result of his diet (see above), alleged criminal activity (ditto), species ambiguity, and occupation, Santa would find the cost of liability insurance quite high. He instead chooses to 'go bare' and operate without any.&lt;br /&gt;
&lt;br /&gt;
The title text states that as a result of intervention Santa's diet is now 20% milk &amp;amp; cookies, implying that previously it was 100% Reindeer. It is a tradition to leave out milk and cookies as a &amp;quot;gift&amp;quot; for Santa. If he is indeed a vampire, it is odd that Santa could survive on a diet of reindeer, milk, and cookies, since vampires supposedly need human blood to survive. Of course, his entering without being invited already shows Santa to be a highly unusual vampire. Additionally, it is possible that he consumes ''reindeer'' blood as part of his reindeer diet (vampires living off animal blood is not unheard of in modern fantasy). Related to that may be the observation that he seems to develop &amp;quot;nutritional deficiencies&amp;quot; when going below 80% reindeer meat, as that would logically result in him consuming less blood and thus starvation due to his vampiric nature.&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
:[An annotated picture of Santa is shown.]&lt;br /&gt;
:'''Santa'''&lt;br /&gt;
:Facts and Figures&lt;br /&gt;
&lt;br /&gt;
:Type: Flying/Psychic&lt;br /&gt;
:Plural: &amp;quot;Santa&amp;quot;&lt;br /&gt;
:Active Warrants: 5&lt;br /&gt;
:Lubricated for easy passage down chimneys&lt;br /&gt;
:Vertical leap: 14 Miles&lt;br /&gt;
:Sleigh flag of convenience: Panama&lt;br /&gt;
:9th in presidential line of succession&lt;br /&gt;
:Not technically an insect—actually an arthropod&lt;br /&gt;
:Only known vampire able to enter house without being invited&lt;br /&gt;
:Works with Alexa&lt;br /&gt;
:Ribbed&lt;br /&gt;
:IUCN red list: Critically endangered&lt;br /&gt;
:Diet: 80% Reindeer&lt;br /&gt;
:Liability Insurance: None&lt;br /&gt;
&lt;br /&gt;
==Trivia==&lt;br /&gt;
*If the proposed line of succession from [[2003: Presidential Succession]] is used in place of the real one, Santa's place in the line would correspond to either a person who does not live in Washington, D.C, nominated at the start of the President's term and confirmed by the Senate, if the five people have an order of succession between themselves, or the governor whose state is the most populous at the most recent census, if they take up a joint presidency.&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
&lt;br /&gt;
[[Category:Christmas]]&lt;br /&gt;
[[Category:Facts]]&lt;br /&gt;
[[Category:Animals]]&lt;br /&gt;
[[Category:Pokémon]]&lt;/div&gt;</summary>
		<author><name>SMGmsgsgd</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=1933:_Santa_Facts&amp;diff=385697</id>
		<title>1933: Santa Facts</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=1933:_Santa_Facts&amp;diff=385697"/>
				<updated>2025-09-01T13:23:36Z</updated>
		
		<summary type="html">&lt;p&gt;SMGmsgsgd: /* Explanation */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 1933&lt;br /&gt;
| date      = December 25, 2017&lt;br /&gt;
| title     = Santa Facts&lt;br /&gt;
| image     = santa_facts.png&lt;br /&gt;
| titletext = We've gotten him up to 20% milk and cookies through an aggressive public campaign, but that seems to be his dietary limit. Anything above that and he starts developing nutritional deficiencies.&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
This was the second [[:Category:Christmas|Christmas comic]] in a row after [[1932: The True Meaning of Christmas]]. It was released on Christmas Day in 2017&lt;br /&gt;
&lt;br /&gt;
The comic provides some dubious &amp;quot;Facts&amp;quot; and &amp;quot;Figures&amp;quot; of the creature known as &amp;quot;Santa&amp;quot;. We can see from the drawing that this is obviously meant to be either {{w|Santa Claus}} or a parody of Santa Claus. It is the third comic using [[:Category:Facts|Facts]] in the title. Another fact comic was released six years later as the Christmas Day comic of 2023: [[2872: Hydrothermal Vents]]. Here it was an Ocean fact about the demise of Santa Clauses...&lt;br /&gt;
&lt;br /&gt;
This comic is reminiscent of the [[:Category:xkcd Phones|xkcd Phones series]].&lt;br /&gt;
&lt;br /&gt;
'''Type: Flying/Psychic'''&lt;br /&gt;
:A reference to {{w|Pokémon}}. The {{w|Gameplay_of_Pokémon#Pok%C3%A9mon_types|type}} of a Pokémon describes and determines its abilities (including attacks), affinities, and general nature. In most stories Santa Claus rides a sled pulled by flying reindeer (all other [https://bulbapedia.bulbagarden.net/wiki/Flying_(type) Flying-type] Pokémon fly under their own power) and some kind of magical power. Psychic possibly refers to his ability to know a child's activities and behavior, including when they are {{w|Santa_Claus_Is_Comin%27_to_Town| sleeping or awake}}, implying a psychic ability to read minds. There is a Pokémon based on Santa, [https://bulbapedia.bulbagarden.net/wiki/Delibird_(Pok%C3%A9mon) Delibird], although it is Ice/Flying instead of Flying/Psychic.&lt;br /&gt;
&lt;br /&gt;
'''Plural: &amp;quot;Santa&amp;quot;'''&lt;br /&gt;
:The plural form of 'Santa' conveniently parallels that of 'reindeer' (as well as those of all species of Pokémon and the term &amp;quot;Pokémon&amp;quot; itself). In real life, &amp;quot;santa&amp;quot; means &amp;quot;saint&amp;quot; in most {{w|Romance languages}}. However &amp;quot;santa&amp;quot; is not plural in any of these languages (for example, in Portuguese the proper plural would be &amp;quot;santos&amp;quot;). Under the most common English approach for making a plural noun, Santa would have a plural of &amp;quot;Santas&amp;quot;. Taking &amp;quot;Santa Claus&amp;quot; as a separate noun, the plural would be &amp;quot;Santa Clauses&amp;quot;. (Or, possibly, &amp;quot;Santas Claus&amp;quot;.)&lt;br /&gt;
&lt;br /&gt;
'''Active warrants: 5'''&lt;br /&gt;
:There is an active warrant for Santa's arrest in 5 jurisdictions, presumably for breaking and entering or for operating a flying sleigh without the proper licensing, while drunk, or over the speed limit.&lt;br /&gt;
&lt;br /&gt;
'''Lubricated for easy passage down chimneys'''&lt;br /&gt;
:The diagram indicates that Santa's attire is lubricated to ease his traditional method of ingress and egress. This explanation is incomplete, however, as a great many chimneys have cross-sectional area substantially smaller than that of a normal human body, let alone a portly one, as commonly described. The common presence of chimney caps, fireplace dampers, and the like would also impede Santa's passage down a great many chimneys. That said, if we take the classic poem &amp;quot;{{w|A Visit from St. Nicholas}}&amp;quot; into account, the statement is technically true, just &amp;quot;lubricated&amp;quot; with magic rather than physical lubrication. A less classic example of Santa going down the chimney with help of magic can be seen in The Santa Clause [https://www.youtube.com/watch?v=WBaQwGTHCL8]. &amp;quot;Lubricated&amp;quot; is also a reference to lubricated condoms - see &amp;quot;Ribbed&amp;quot; below.&lt;br /&gt;
&lt;br /&gt;
'''Vertical Leap: 14 Miles'''&lt;br /&gt;
:For a non-magical being or object, a vertical leap of 14 miles (~23 km), ''ignoring air resistance'' would require an initial launch velocity of slightly more than 2180 feet per second (665 m/s), somewhat over twice the speed of sound. Achieving this velocity by means of bending then straightening the legs would require an acceleration of roughly 25,000 G, placing extraordinarily high demands on the strength and durability of the legs. As Santa does not have a particularly aerodynamic shape, air resistance would increase the launch velocity and launch acceleration requirements substantially. Santa may be able to overcome these problems due to his magical nature; however, there is clearly still a limit to what this can achieve, as there is a maximum to his leaping ability.&lt;br /&gt;
&lt;br /&gt;
'''Sleigh Flag of Convenience: Panama'''&lt;br /&gt;
:The {{w|Flag_of_convenience|Flag of Convenience}}  identifies the country in which an ocean-going vessel has its registration information. Panama maintains one of the top three open registries. Owners of a vessel may choose to use an open registry to avoid labor or safety regulations of the owner's country. They may also choose such a registry to help obscure ownership of the vessel. Which concern applies in the case of Santa's sleigh is not stated, or (more likely) not known. It may also be the only type of registration available, since the north pole is not in any country, so there is no &amp;quot;owner's country&amp;quot;.&lt;br /&gt;
&lt;br /&gt;
:However, a ship's flag state exercises regulatory control over the vessel and is required to inspect it regularly, certify the ship's equipment and crew, and issue safety and pollution prevention documents. One suspects that this does '''not''', in fact, happen regularly with Santa's sleigh. Also, as a ''flying'' sleigh, the registry for ''ocean-going'' vessels is not applicable. Instead, it would be registered as an aircraft, with the FAA (in the U.S.), EASA (in Europe), or the equivalent in another country. Civilian aircraft have their registration number painted on their tails, but are not required to display a &amp;quot;flag&amp;quot;. (However, U.S. Airways used a stylized version of a U.S. flag as a corporate logo prior to its merger with American Airlines.)&lt;br /&gt;
&lt;br /&gt;
:The country being Panama may be a reference to the {{w|Panama Papers}}.&lt;br /&gt;
&lt;br /&gt;
'''9th in Presidential Line of Succession'''&lt;br /&gt;
:The {{w|United_States_presidential_line_of_succession|Presidential Line of Succession}} specifies the order in which persons may become or act as {{w|President of the United States}} if the incumbent President becomes incapacitated, dies, resigns, or is removed from office. Having Santa as the 9th in that order would place him above the {{w|United States Secretary of Agriculture|Secretary of Agriculture}}. An alternative interpretation would hold that Santa '''is''' the present Secretary of Agriculture, {{w|Brooke Rollins}}.&lt;br /&gt;
&lt;br /&gt;
:Assuming Tom Vilsack is not Santa Claus, Santa is likely ineligible for the Presidency, as most origin stories of Santa have him a natural-born citizen of a European country (or of Turkey) rather than the United States.  Alternately, Santa might be old enough to qualify under the &amp;quot;citizen at the time of the adoption of this constitution&amp;quot; clause, although in light of the information that Santa is actually an arthropod and/or a vampire (see below), his status as an American citizen is dubious. &lt;br /&gt;
&lt;br /&gt;
'''Not technically an insect &amp;amp;#8212; actually an arthropod'''&lt;br /&gt;
:This &amp;quot;fact&amp;quot; uses an absurd misconception to correct a relatively common misconception. Absurdly, Randall has mistaken Santa for a lobster, given his bright red coloration and the surname Claus (which is pronounced the same as a lobster's &amp;quot;claws&amp;quot;). This may be an homage to the film the Nightmare Before Christmas, where Jack Skellington believes Christmas Town is led by &amp;quot;Sandy Claws&amp;quot; who is &amp;quot;like a lobster, huge and red&amp;quot;.&lt;br /&gt;
&lt;br /&gt;
:There is a relatively common misconception that lobsters are insects. In fact, lobsters are crustaceans, but there is a kernel of truth to the misconception, as crustaceans and insects are related (both are arthropods).  Thus, the &amp;quot;fact&amp;quot; states that Lobster-Santa is not technically an insect; he is actually an arthropod. &lt;br /&gt;
&lt;br /&gt;
'''Only known vampire able to enter house without being invited'''&lt;br /&gt;
:In traditional vampire folklore, a vampire {{tvtropes|MustBeInvited|cannot enter an abode without an invitation from the owner of the same}}. Santa, however, seems to be able to enter houses even without explicit invitation (although plenty of children do welcome him, either via written notes or by their general sentiments), so if he is a vampire he is the exception to that rule. This juxtaposes interestingly with the previous point about his arthropod nature.&lt;br /&gt;
&lt;br /&gt;
:His being a vampire is perhaps related to his dressing all in red, and alleged immortality. &lt;br /&gt;
&lt;br /&gt;
'''Works with Alexa'''&lt;br /&gt;
:May have any of several meanings, including that Alexa (Amazon's virtual assistant) is Santa's colleague, that Santa uses Alexa in his work, that Santa is somehow functionally compatible with Alexa, or a reference to various Santa-themed 'skills' that Alexa can be associated with. A common advertisement states that a product is compatible with Amazon's smart device, Alexa. But it could also be a play on the idea or fear that Alexa may be used to spy on people from the privacy of their own homes, much like what is claimed of Santa (&amp;quot;he sees you when you're sleeping, [...]&amp;quot;). Finally, several skills designed to entertain users of Alexa are themed around Santa Claus, including asking Alexa where Santa is on Christmas Eve, whether or not you've been naughty or nice, or even leaving the jolly old elf a voicemail.&lt;br /&gt;
&lt;br /&gt;
'''Ribbed'''&lt;br /&gt;
:A reference to condoms, which have ridges or ribbing in order to promote pleasurable stimulation during coitus (see &amp;quot;Lubricated&amp;quot; above). This also puns on the fact that, as a humanoid, Santa presumably has a rib cage. (This might directly contradict the claims about his being an arthropod.)&lt;br /&gt;
&lt;br /&gt;
'''IUCN Red List: Critically endangered'''&lt;br /&gt;
:The [https://www.iucn.org/about International Union for Conservation of Nature] (IUCN) monitors the size and viability of populations of organisms; 'critically endangered' marks a population as being highly susceptible to extinction. Santa, being one (or possibly two, if we include his wife) of a kind and lacking any offspring (and, indeed, likely being incapable of effectively producing any), will most likely be the last member of his population; thus extinction will arrive with his or his wife's death. Note, however, that the presence on the Red List implies that &amp;quot;Santa&amp;quot; is a biological species, not a fantasy, robot, or other non-biological entity. This is consistent with Santa being an arthropod and/or vampire, but would suggest that there are many specimens of Santa, while other 'Facts' (such as having a definite ranking in the Presidential Line of Succession) suggest Santa to be a single individual. &lt;br /&gt;
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'''Diet: 80% Reindeer'''&lt;br /&gt;
:A mocking allusion to Santa Claus's sleigh, usually pulled by reindeer. Usual folklore depict Santa Claus being extremely fond of his reindeer, thus making it a humorous contrast to suggest he'd be ''eating'' reindeer meat on a daily basis.&lt;br /&gt;
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'''Liability Insurance: None'''&lt;br /&gt;
:As a result of his diet (see above), alleged criminal activity (ditto), species ambiguity, and occupation, Santa would find the cost of liability insurance quite high. He instead chooses to 'go bare' and operate without any.&lt;br /&gt;
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The title text states that as a result of intervention Santa's diet is now 20% milk &amp;amp; cookies, implying that previously it was 100% Reindeer. It is a tradition to leave out milk and cookies as a &amp;quot;gift&amp;quot; for Santa. If he is indeed a vampire, it is odd that Santa could survive on a diet of reindeer, milk, and cookies, since vampires supposedly need human blood to survive. Of course, his entering without being invited already shows Santa to be a highly unusual vampire. Additionally, it is possible that he consumes ''reindeer'' blood as part of his reindeer diet (vampires living off animal blood is not unheard of in modern fantasy). Related to that may be the observation that he seems to develop &amp;quot;nutritional deficiencies&amp;quot; when going below 80% reindeer meat, as that would logically result in him consuming less blood and thus starvation due to his vampiric nature.&lt;br /&gt;
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==Transcript==&lt;br /&gt;
:[An annotated picture of Santa is shown.]&lt;br /&gt;
:'''Santa'''&lt;br /&gt;
:Facts and Figures&lt;br /&gt;
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:Type: Flying/Psychic&lt;br /&gt;
:Plural: &amp;quot;Santa&amp;quot;&lt;br /&gt;
:Active Warrants: 5&lt;br /&gt;
:Lubricated for easy passage down chimneys&lt;br /&gt;
:Vertical leap: 14 Miles&lt;br /&gt;
:Sleigh flag of convenience: Panama&lt;br /&gt;
:9th in presidential line of succession&lt;br /&gt;
:Not technically an insect—actually an arthropod&lt;br /&gt;
:Only known vampire able to enter house without being invited&lt;br /&gt;
:Works with Alexa&lt;br /&gt;
:Ribbed&lt;br /&gt;
:IUCN red list: Critically endangered&lt;br /&gt;
:Diet: 80% Reindeer&lt;br /&gt;
:Liability Insurance: None&lt;br /&gt;
&lt;br /&gt;
==Trivia==&lt;br /&gt;
*If the proposed line of succession from [[2003: Presidential Succession]] is used in place of the real one, Santa's place in the line would correspond to either a person who does not live in Washington, D.C, nominated at the start of the President's term and confirmed by the Senate, if the five people have an order of succession between themselves, or the governor whose state is the most populous at the most recent census, if they take up a joint presidency.&lt;br /&gt;
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{{comic discussion}}&lt;br /&gt;
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[[Category:Christmas]]&lt;br /&gt;
[[Category:Facts]]&lt;br /&gt;
[[Category:Animals]]&lt;br /&gt;
[[Category:Pokémon]]&lt;/div&gt;</summary>
		<author><name>SMGmsgsgd</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=Talk:1516:_Win_by_Induction&amp;diff=385694</id>
		<title>Talk:1516: Win by Induction</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=Talk:1516:_Win_by_Induction&amp;diff=385694"/>
				<updated>2025-09-01T09:40:19Z</updated>
		
		<summary type="html">&lt;p&gt;SMGmsgsgd: &lt;/p&gt;
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&lt;div&gt;Is the alt text a reference to double-yolkers (eggs with two yolks)?  [http://www.bbc.co.uk/news/magazine-16118149 They're only about 1 in every 1000] but it seems like an obvious reference. --[[User:Fenn|Fenn]] ([[User talk:Fenn|talk]]) 08:32, 24 April 2015 (UTC)&lt;br /&gt;
:Makes sense to me. I didn't even think of double yolks until you mentioned it here. [[Special:Contributions/173.245.50.89|173.245.50.89]] 09:04, 24 April 2015 (UTC)BK201&lt;br /&gt;
::Seconded. --[[Special:Contributions/188.114.110.52|188.114.110.52]] 14:34, 24 April 2015 (UTC)&lt;br /&gt;
:::I'd think it's a reference to the rate of twins, which is currently almost exactly 1/30 (and on the rise) [http://en.wikipedia.org/wiki/Twin#Statistics] [[Special:Contributions/173.245.56.186|173.245.56.186]] 17:45, 24 April 2015 (UTC)Merkky[[Special:Contributions/173.245.56.186|173.245.56.186]] 17:45, 24 April 2015 (UTC)&lt;br /&gt;
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The explanation currently says that doubling makes it uncountably infinite. I'm pretty sure that doubling at each step (or every few steps) is still a countable infinite set. Proof here: http://practicaltypography.com/the-infinite-pixel-screen.html (see section &amp;quot;The internet demands a recount&amp;quot;, because the first attempt is wrong). We can also prove it using the same argument as when proving that N x N is countable infinite (making zig-zag), but in this case making a breadth-first search of the tree of Pikachus: map 1 to the first Pikachu, map 2 and 3 to the two Pikachus at the second level, map 4, 5, 6, 7 to the four Pikachus at the third level, map (2^(n-1))…((2^n) - 1) to the 2^(n-1) Pikachus at level n. {{unsigned ip|108.162.229.177}}&lt;br /&gt;
:Saw this too late. Yes, I agree, and I have fixed it accordingly. --[[User:Stephan Schulz|Stephan Schulz]] ([[User talk:Stephan Schulz|talk]]) 09:28, 24 April 2015 (UTC)&lt;br /&gt;
:The problem being that we don't have an exact number for how many steps include double Pikachus. Granted, this is just a problem of practice, not theory. [[Special:Contributions/173.245.50.88|173.245.50.88]] 12:37, 24 April 2015 (UTC)&lt;br /&gt;
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&amp;quot;infinite, but countable&amp;quot; {Cough.} Someone doesn't understand infinity. Perhaps they meant &amp;quot;enumerable&amp;quot;. [[Special:Contributions/108.162.250.155|108.162.250.155]] 09:29, 24 April 2015 (UTC)ū&lt;br /&gt;
:Someone doesn't understand countability. [[Special:Contributions/141.101.89.217|141.101.89.217]] 09:46, 24 April 2015 (UTC)&lt;br /&gt;
::enumeration is counting, in the simplest sense. &amp;quot;To name one by one; specify, as if in a list&amp;quot;. That said, the whole of infinite whole numbers CAN be counted, just not by a human and not within a reasonable amount of time. --[[Special:Contributions/188.114.110.52|188.114.110.52]] 14:34, 24 April 2015 (UTC)&lt;br /&gt;
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&amp;quot;The front most Pikachu speaks.&amp;quot; Hey, look, it has those little lines to show it's speaking, not the blank white space behind it. Duh. [[Special:Contributions/108.162.250.155|108.162.250.155]] 09:32, 24 April 2015 (UTC)&lt;br /&gt;
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Looks like Megan is looking at her watch as well.  Mention in transcript/explanation? [[User:Fenn|Fenn]] ([[User talk:Fenn|talk]]) 09:34, 24 April 2015 (UTC)&lt;br /&gt;
:Are Megan and Cueball supposed to fight each other? It seems like Cueball still has his closed Pokéball in his hands. Is it then Megan's Pokéball that has evolved into all these Pikachu? And is it because she waits for her Pokémon to be ready to fight Cueball, that she checks her watch? I do not know anything about the Pokémon game/world. But it seems to me that some part of this setup is unexplained by the above... --[[User:Kynde|Kynde]] ([[User talk:Kynde|talk]]) 11:23, 24 April 2015 (UTC)&lt;br /&gt;
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::I've not seen many anime episodes, but in the games' battles the trainers always face each other from opposing sides. Plus, there are classes of trainers that are two people, so it could be that Megan is simply with Cueball. [[Special:Contributions/188.114.97.151|188.114.97.151]] 18:58, 18 December 2015 (UTC)&lt;br /&gt;
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Friendly reminder: Grammatically speaking, Pokémon are like sheep or deer. Singular and plural are both written the same. One Pikachu, many Pikachu, all the Pikachu. You'd be surprised at how much rage forgetting this causes in certain corners of the Internet. {{unsigned ip|141.101.99.42}}&lt;br /&gt;
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What doesn't make sense to me is how this could continue indefinitely – after all, each of those Pikachu must have caught its own Pikachu beforehand. I don't see any infinite loop here, just a bunch of Pikachu that already had one another caught itselves. [[Special:Contributions/141.101.96.217|141.101.96.217]] 10:13, 24 April 2015 (UTC)&lt;br /&gt;
:Ah, the immortal quip from Jerry Bona: &amp;quot;The Axiom of Choice is obviously true, the well-ordering principle obviously false, and who can tell about Zorn's Lemma?&amp;quot; [[User:Aube|Aube]] ([[User talk:Aube|talk]]) 05:29, 25 April 2015 (UTC)&lt;br /&gt;
::Maybe some Pokemon deity (e.g. &amp;quot;Arceus&amp;quot;) has created a pokemon ''already filled'' recursively to infinity. --[[Special:Contributions/172.71.90.86|172.71.90.86]] 18:23, 9 November 2024 (UTC)&lt;br /&gt;
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The word &amp;quot;induction&amp;quot; could also be intended to have a double meaning, referring also to electromagnetic induction.  Pikachu is, after all, and electric pokémon. {{unsigned ip|141.101.105.194}}&lt;br /&gt;
:Yes, I think this is right. Something about Maxwell's equations and induction. {{unsigned ip|173.245.54.203}}&lt;br /&gt;
::From an engineering standpoint, in my opinion, Pikachu act more like biological capacitors (stored electric charge at potentially high voltage able to deliver large discharge currents) than inductors (&amp;quot;storing&amp;quot; magnetic energy via constant current, able to deliver high voltage when interrupted, like the ignition coil for an older automotive engine).  I'm not too familiar with the Pokémon in-game/in-show universe, but I would imagine the Nurse Jenny corps could use electric Pokémon such as Pikachu (or Raichu) like defibrillators for cardiac events! --BigMal // [[Special:Contributions/173.245.50.177|173.245.50.177]] 11:42, 24 April 2015 (UTC)&lt;br /&gt;
:::There are certain moves, including some that Pikachu can learn, that appear to be based on induction (Thunder Wave and Shock Wave). Besides, they build up charge in their bodies from somewhere; I'd suspect induction from the surrounding environment is what charges them up. --[[Special:Contributions/188.114.110.52|188.114.110.52]] 14:34, 24 April 2015 (UTC)&lt;br /&gt;
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There's a point floating about how infinity doesn't imply completion.  For instance, the number of all even integers is infinite, yet any given integer &amp;quot;only has a 50% chance of being even&amp;quot;, so the series is quite obviously incomplete.  This article seems to tend towards the idea (in diction) that an infinite number of pikachu would result in a win based on a 'logical' premise, without referring specificially to the terms of it's assumption. [[User:Xerxesbeat|Xerxesbeat]] ([[User talk:Xerxesbeat|talk]]) 11:38, 24 April 2015 (UTC)&lt;br /&gt;
:The observation proceeds from the fact that the cardinality of all even integers is the same as the cardinality of all natural numbers (and the cardinality of all rational numbers). You can say that there are as many even integers are there are integers, conterintuitive as that seems. This, however, has nothing to do with the reasoning behind induction. Suppose that there is a finite number that doesn't correspond with a Pikachu, we can pick the least number for which this is the case (just check all the lower numbers until we find the least non-pikachu number N). But there is a pikachu corresponding to N-1, and it is holding a pokeball with a pikachu. So the pikachu in the pokeball of pikachu N-1 is pikachu N, and we have a contradiction to our supposition. Therefore there is no finite number that doesn't correspond with a Pikachu, QED.[[User:Aube|Aube]] ([[User talk:Aube|talk]]) 05:29, 25 April 2015 (UTC)&lt;br /&gt;
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What happens if the Pikachu in the ball is recursing - picking himself? That doesn't fit the 30-40 double yolk thing, but would explain an infinite series. Food for thought. Megan is bored, waiting for the fight to start. I thought the game was supposed to begin when the players choose, though, so I don't understand why the wait is happening at all. {{unsigned ip|108.162.221.151}}&lt;br /&gt;
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I doubt this is an intentional part of the joke, but the strongest Ground-type moves (Earthquake, Precipice Blades, etc.) are multi-target, hitting all foes in a 1v5 situation such as Horde Battles. In theory, a strong enough super effective move from Cueball's lead would still end the battle in one turn. [[Special:Contributions/173.245.56.176|173.245.56.176]] 12:04, 24 April 2015 (UTC)&lt;br /&gt;
:Not Land's Wrath, Dig, or Earth Power, which are strong ground-type moves.[[Special:Contributions/173.245.48.126|173.245.48.126]] 13:05, 24 April 2015 (UTC)&lt;br /&gt;
::Actually, Land's Wrath is multi-target. (The ones you named are also weaker than Earthquake and Precipice Blades, so the original comment stands regardless. Although a lucky Magnitude is more powerful than any of those.) --[[Special:Contributions/108.162.221.98|108.162.221.98]]&lt;br /&gt;
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I normally get a hearty chuckle out of Randall's graphical musings, but this one had me scratching my head.  Fortunately, ExplainXKCD always comes to the rescue!  After reading this page, my first thought was: Pokéception! 13:17, 24 April 2015 (UTC)&lt;br /&gt;
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This sentence is nonsensical: ''When Trainers do battle, the anime's dub has immersed the phrase &amp;quot;&amp;lt;Pokémon's name&amp;gt;, I choose you!&amp;quot; into popular culture memory, which is accompanied by throwing the ball containing the selected Pokémon to the ground, which releases the Pokémon at full size.'' [[Special:Contributions/108.162.219.161|108.162.219.161]] 17:51, 24 April 2015 (UTC)&lt;br /&gt;
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Should it be noted that the Pikachu is drawn without its tail? It would normally a have lightning bolt shaped tail that appears to the side or from behind its head. (Trivia or other note?) [[User:Azule|Azule]] ([[User talk:Azule|talk]]) 15:22, 24 April 2015 (UTC)&lt;br /&gt;
:I agree it looks weird, but can it be written off as it's being obscured by itself? {{unsigned ip|173.245.50.89}}&lt;br /&gt;
::I would say not. Look how the left arms are all a bit obscured by the body. This indicates that the Pikachu are turned slightly toward a side view. That would mean the back end would more visible, including the tail. [[User:Azule|Azule]] ([[User talk:Azule|talk]]) 09:34, 27 April 2015 (UTC)&lt;br /&gt;
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In Pokemon games from Gold and up, pokemon are able to hold items, including pokeballs. While in the game, once a pokeball is filled it is no longer available to select as an item, this comic would seem to imply the possible 'inception' scenario of having a pokemon hold an active pokeball (as the games have already shown that a pokeball can go into a pokeball). --[[Special:Contributions/173.245.54.193|173.245.54.193]] 14:13, 24 April 2015 (UTC)&lt;br /&gt;
: ahem... &amp;quot;pokeception&amp;quot; short for &amp;quot;pocket inception&amp;quot; - I can't be the first one to coin this (?) - [[User:Brettpeirce|Brettpeirce]] ([[User talk:Brettpeirce|talk]]) 16:33, 24 April 2015 (UTC)&lt;br /&gt;
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With Megan looking at her watch and Cueball holding the ball, I think we're meant to understand that Megan IS the Pokémon Cueball intends to use against Pikachu.[[Special:Contributions/108.162.221.153|108.162.221.153]] 19:12, 24 April 2015 (UTC)&lt;br /&gt;
:Since Cueball has a closed ball in hand he has yet to choose a Pokemon. Tjus Megan cannot be his. She must have thrown the first Pikachu ball. Should be changed in explanation.[[User:Kynde|Kynde]] ([[User talk:Kynde|talk]]) 20:31, 24 April 2015 (UTC)&lt;br /&gt;
It is possible the &amp;quot;win by induction&amp;quot; is from the Pikachu's opponent inferring the series in infinite, and conceding. 19:56, 24 April 2015 (UTC)&lt;br /&gt;
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Am I missing something or does Randall not quite understand how Pokemon works? (Or is intentionally misrepresenting it for the sake of the joke) Pokemon don't come out with their own pokeball with them-- the pokemon aren't magically created. In theory, if someone were to give a pokemon its own pokemon, a chain could occur, but it would be limited to the number of pokemon previously caught. The pokemon are born in the wild and are captured inside pokeballs-- not created from them. {{unsigned ip|108.162.219.91}}&lt;br /&gt;
:If a Pikachu can catch another Pikachu in a Pokéball, then there is no reason why the Pikachu it just caught, did not think about this before, and that it had done the same. So when it was caught and put into the Pokéball, it already had a Pokéball with another Pikachu. Of this has occurred enough times you get the result of this comic. No one said this would go on forever, that is something we have interpreted from the comic. It does not come directly from Randall! --[[User:Kynde|Kynde]] ([[User talk:Kynde|talk]]) 05:36, 25 April 2015 (UTC)&lt;br /&gt;
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Bother this. I send out Quagsire. Use Earthquake. '''Please''' do not wait.[[User:Greyson|Greyson]] ([[User talk:Greyson|talk]]) 05:18, 25 April 2015 (UTC)&lt;br /&gt;
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No mention of the exponential growth? If every 40th pikachu releases 2 and each of those also release their own pikachu then there is an average growth rate of the pikachu able to release another pikachu of 41/40 = 1.025. [[Special:Contributions/173.245.49.90|173.245.49.90]] 19:48, 25 April 2015 (UTC)&lt;br /&gt;
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;Induction&lt;br /&gt;
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Two other possibilities: one, in a bit of googling, it would appear that there is a type of Pokémon evolution called induced evolution, which involves stones of some kind?  Alternately, we can use the term induction in the sense of soneone being ''inducted'' into a group.  In this case, Megan has trained her Pikachu to be a Pokémaster. (Perhaps by arranging for it to be inducted into a rarified &amp;quot;gym&amp;quot;?  I confess, I know nothing about the show.) [[Special:Contributions/173.245.56.196|173.245.56.196]] 13:11, 24 April 2015 (UTC)&lt;br /&gt;
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:Considering [http://bulbapedia.bulbagarden.net/wiki/Meowth_(Team_Rocket) Team Rocket's Meowth], which could talk and act just like a human, I think it would be possible for a Pokémon to become a trainer, maybe even fight without a trainer, knowing the intricacies of type effectiveness and what not. Also, the infinite Pikachu could have been made at a Day Care, but that would take an infinite time, and therefore can't be what happened in this comic. [[Special:Contributions/188.114.97.151|188.114.97.151]] 18:58, 18 December 2015 (UTC)&lt;br /&gt;
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I'm surprised no one mentioned that Pokémon is a game a long time before becoming a show. Although it was because of the animated series that Pikachu became &amp;quot;special&amp;quot; among the hundreds of other cute critters.&lt;br /&gt;
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Also, no mention to the russian matryoshka dolls? Come on...&lt;br /&gt;
Closest other xkcd I recall is https://xkcd.com/878/ {{unsigned ip|198.41.230.68}}&lt;br /&gt;
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;Axiom of choice&lt;br /&gt;
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Could this be to do with the {{w|axiom of choice}} from set theory? From my understanding, it's a fundamental axiom of set theory that says 'given a set of sets, it's possible to choose one element from each of those sets'. &amp;quot;Choosing&amp;quot; is in this case a specific operation that can be performed on an element.&lt;br /&gt;
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One specific detail about the axiom is that all sets under consideration must be nonempty; that is, they must contain at least one element. So I think this is analogous to the situation of a Pokemon trainer owning multiple (full) Pokeballs: his Pokeballs are a collection of non-empty sets from which he is now trying to choose a single element (&amp;quot;Pikachu, I choose you!&amp;quot;).&lt;br /&gt;
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Under ''normal'' circumstances, he can do this without invoking the axiom of choice because he knows the names of all his Pokemon and so can select one from each set. In this case, he could prove his ability to make the choice simply by releasing all of his Pokemon from their balls one at a time. (The Pokemon's name is actually irrelevant, because simply releasing the Pokemon counts as a choice).&lt;br /&gt;
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However, the situation becomes more complex if it turns out that his Pokemon also possess Pokeballs, because now his ability to make the choice is uncertain. In this situation, there could be ''infinitely many'' Pikachus, and so he can't definitely select a Pikachu from all the Pokeballs under his control. In a situation like this, a mathematician would invoke the axiom of choice.&lt;br /&gt;
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However, it seems that Cueball is actually having a go at it using an inductive method of choice: first by choosing a Pikachu, then having each Pikachu choose a Pikachu. If the number of Pikachus carrying Pokeballs is finite, then eventually, this will demonstrate that the choice can be made and so the axiom of choice is unnecessary. However, if it's ''infinite'', then this will generate a neverending stream of Pikachus. In the latter case, the game never begins, because you can't begin a Pokemon battle until all participants have chosen Pokemon. Most likely, the other players would simply abandon the game, which Cueball could claim as a victory. [[User:Hawthorn|Hawthorn]] ([[User talk:Hawthorn|talk]]) 13:52, 24 April 2015 (UTC)&lt;br /&gt;
:I think you are confused about the AoC. AoC states that given any collection of elements, you can choose an element from EACH set. If you are choosing a pokemon from a collection of pokeballs, it's equivalent to choosing one full pokeball from the collection and you are picking an element from a single set, which doesn't involve the AoC (this is something you can always do as long as the set is non-empty). In the example in the comic, AoC is not needed because there is already a natural ordering (ignoring the alt-text, which would make the set a partial ordering), so it's trivial to construct a choice function for any subset (choose the &amp;quot;least&amp;quot; pikachu in the sequence). On the other hand, if we have infinite pikachus running wild, we would need the Axiom of Choice (preferably its equivalent, the Well-Ordering Theorem) to assert that they can be ordered so that all of them except one is captured in a pokeball held by another pikachu.[[User:Aube|Aube]] ([[User talk:Aube|talk]]) 05:10, 25 April 2015 (UTC)&lt;br /&gt;
::I was hoping a real mathematician would get involved. ^^ Do you think that this mathematical definition of 'choice' is the one being referred to in the comic, though? [[User:Hawthorn|Hawthorn]] ([[User talk:Hawthorn|talk]]) 13:47, 25 April 2015 (UTC)&lt;br /&gt;
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Why don't those Pikachu have tails? Have they been sliced off? Is this some kind of mutation?-🐼🐯😺🐱 {{unsigned|FlyingPiggy}}&lt;br /&gt;
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Its all moot anyway. Pokemon can't talk but to say their name. [[User:YourLifeisaLie|Yourlifeisalie]] ([[User talk:YourLifeisaLie|talk]]) 14:45, 28 April 2015 (UTC)&lt;br /&gt;
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:[http://bulbapedia.bulbagarden.net/wiki/Meowth_(Team_Rocket) Team Rocket's Meowth]... [[Special:Contributions/188.114.97.151|188.114.97.151]] 18:58, 18 December 2015 (UTC)&lt;br /&gt;
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The 1 in 30 or 40 could be a reference to the fact that twins account for around 1 in 30 child births in the US, following in this vein, induction could be wordplay on the act of inducing labour in pregnant animals. [[Special:Contributions/141.101.99.69|141.101.99.69]] 21:22, 28 April 2015 (UTC)&lt;br /&gt;
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Pikachu (the one the main character has) doesn't like living in a Pokeball. Maybe this comic explains why? [[Special:Contributions/108.162.221.184|108.162.221.184]] 23:29, 30 April 2015 (UTC) &amp;lt;&amp;lt;Why are all the IP addresses wrong?&lt;br /&gt;
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4th Pokemon movie (Pokémon 4Ever: Celebi - Voice of the Forest; 2001) takes place in the past (relatively to Pokemon anime canon). There is old-fashioned pokeball used by young prof. Oak and it looks similar to one in the comic. [https://www.youtube.com/watch?v=r1DWzqUbJE8 Watch that part here.] [[Special:Contributions/141.101.89.222|141.101.89.222]] 17:20, 1 May 2015 (UTC)&lt;br /&gt;
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Maybe each Pikachu will take exponentially shorter time so the total time is finite like GOD in ''GEB''? For example, with the initial Pikachu taking one moment to summon the next, the meta-Pikachu taking half moment, the meta-meta-Pikachu taking quarter moment. [[Special:Contributions/172.70.86.22|172.70.86.22]] 22:28, 7 February 2022 (UTC)&lt;br /&gt;
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Wonder if endless battle clause would apply in this situation. [[Special:Contributions/172.70.90.209|172.70.90.209]] 18:41, 28 October 2024 (UTC)&lt;br /&gt;
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Actually, Pokemon are shrinked inside Pokeball - but, presumably, mass is not 0. So, if it were truely infinite number of Pokemon there (or, at least, &amp;quot;sufficiently large&amp;quot; one) - then, it would all collapse into black hole. --[[Special:Contributions/172.71.90.86|172.71.90.86]] 18:23, 9 November 2024 (UTC)&lt;br /&gt;
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I think, this also takes fun of the fact, that in ''Pokemon'' works, almost no-one figures out to attack the Pokemon Trainers themselves (even if fighting with villains, or on-the-road where Pokemon League rules don't apply). Since, if Pokemon Trainer fainted, then the currently deployed Pokemon would be left without orders and don't know what to do next, and non-deployed Pokemon would be effectively neutralized as Trainer can't deploy them if he's fainted. As such, Cueball and Megan could have won, if they immediately attacked the very first Pikachu encountered before he can deploy the second Pikachu; or alternatively, attack the currently last in line (closes to them) Pikachu before he deploys another Pikachu; or alternatively, use Move which damages all opponent's Pokemon on field. Yet instead, they locked themselves in seemingly infinite loop by not wanting to attack trainers; the only reason to not do it, is that it would likely cause every Pikachu in line to attack, as attacking a trainer (every Pikachu in line is both Pokemon and Trainer) would provoke them to also attack the trainer (Cueball). --[[User:SMGmsgsgd|SMGmsgsgd]] ([[User talk:SMGmsgsgd|talk]]) 08:34, 1 September 2025 (UTC)&lt;br /&gt;
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On the other hand, since every Pikachu doesn't plan to fight himself and deploys another Pikachu, they're effectually not enemies - since unless one of Pikachus get attacked first, they would just stand there and give orders to each-other, without actually doing anything harmful to Cueball and Megan. As such, Cueball and Megan could just walk away at any moment - as in that case, Pikachus would likely just bicker around, and wouldn't attack even if they chase; multiple Run attempts and fight ends. Or alternatively, Cueball and Megan could try to somehow befriend the first Pikachu in line (furthest form them), therefore ending the fight and having all Pikachus recalled - since said Pikachu would, again, not attack unless he's directly hurt, and could be talked with until he gives up or ceases hostility. --[[User:SMGmsgsgd|SMGmsgsgd]] ([[User talk:SMGmsgsgd|talk]])&lt;br /&gt;
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Is such or similar situation possible in ''actual canon Pokemon'' universe? That is, Pokemon were shown to be smart enough to communicate with humans and interact with objects, and some have human-like intelligence - so in theory, they could use Pokeballs themselves. And if they could carry their own set of Pokeballs while in Pokeball themselves, they could deploy their own Pokemon ad infinitum (and this doesn't violate the &amp;quot;6 Pokemon in team&amp;quot; rule, as extra Pokemon are members of teams of other Pokemon; human trainer still only has 6 Pokemon ''directly'' controlled by him). While infinitely large amounts of Pokemon would obviously be impossible in practice, using this to deploy a few extra dozens of Pokemon could be possible in theory. --[[User:SMGmsgsgd|SMGmsgsgd]] ([[User talk:SMGmsgsgd|talk]]) 08:34, 1 September 2025 (UTC)&lt;br /&gt;
:In other words: &amp;quot;In Pokémon canon, Pokémon are only allowed to hold on to an empty Pokéball when stored in a Pokéball.&amp;quot; - but this is ''physical'' restriction (i.e. doing so is impossible) or ''legal'' restriction (i.e. doing so is possible, but forbidden by law or Pokemon League Rules)? Just like with &amp;quot;no more than 6 Pokemon in team&amp;quot; and &amp;quot;no more than 1&amp;quot; rules still being debated over by fans over whether they're ''physical'' or ''legal'' restrictions. --[[User:SMGmsgsgd|SMGmsgsgd]] ([[User talk:SMGmsgsgd|talk]]) 09:40, 1 September 2025 (UTC)&lt;/div&gt;</summary>
		<author><name>SMGmsgsgd</name></author>	</entry>

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		<id>https://www.explainxkcd.com/wiki/index.php?title=Talk:1516:_Win_by_Induction&amp;diff=385693</id>
		<title>Talk:1516: Win by Induction</title>
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				<updated>2025-09-01T08:34:47Z</updated>
		
		<summary type="html">&lt;p&gt;SMGmsgsgd: &lt;/p&gt;
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&lt;div&gt;Is the alt text a reference to double-yolkers (eggs with two yolks)?  [http://www.bbc.co.uk/news/magazine-16118149 They're only about 1 in every 1000] but it seems like an obvious reference. --[[User:Fenn|Fenn]] ([[User talk:Fenn|talk]]) 08:32, 24 April 2015 (UTC)&lt;br /&gt;
:Makes sense to me. I didn't even think of double yolks until you mentioned it here. [[Special:Contributions/173.245.50.89|173.245.50.89]] 09:04, 24 April 2015 (UTC)BK201&lt;br /&gt;
::Seconded. --[[Special:Contributions/188.114.110.52|188.114.110.52]] 14:34, 24 April 2015 (UTC)&lt;br /&gt;
:::I'd think it's a reference to the rate of twins, which is currently almost exactly 1/30 (and on the rise) [http://en.wikipedia.org/wiki/Twin#Statistics] [[Special:Contributions/173.245.56.186|173.245.56.186]] 17:45, 24 April 2015 (UTC)Merkky[[Special:Contributions/173.245.56.186|173.245.56.186]] 17:45, 24 April 2015 (UTC)&lt;br /&gt;
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The explanation currently says that doubling makes it uncountably infinite. I'm pretty sure that doubling at each step (or every few steps) is still a countable infinite set. Proof here: http://practicaltypography.com/the-infinite-pixel-screen.html (see section &amp;quot;The internet demands a recount&amp;quot;, because the first attempt is wrong). We can also prove it using the same argument as when proving that N x N is countable infinite (making zig-zag), but in this case making a breadth-first search of the tree of Pikachus: map 1 to the first Pikachu, map 2 and 3 to the two Pikachus at the second level, map 4, 5, 6, 7 to the four Pikachus at the third level, map (2^(n-1))…((2^n) - 1) to the 2^(n-1) Pikachus at level n. {{unsigned ip|108.162.229.177}}&lt;br /&gt;
:Saw this too late. Yes, I agree, and I have fixed it accordingly. --[[User:Stephan Schulz|Stephan Schulz]] ([[User talk:Stephan Schulz|talk]]) 09:28, 24 April 2015 (UTC)&lt;br /&gt;
:The problem being that we don't have an exact number for how many steps include double Pikachus. Granted, this is just a problem of practice, not theory. [[Special:Contributions/173.245.50.88|173.245.50.88]] 12:37, 24 April 2015 (UTC)&lt;br /&gt;
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&amp;quot;infinite, but countable&amp;quot; {Cough.} Someone doesn't understand infinity. Perhaps they meant &amp;quot;enumerable&amp;quot;. [[Special:Contributions/108.162.250.155|108.162.250.155]] 09:29, 24 April 2015 (UTC)ū&lt;br /&gt;
:Someone doesn't understand countability. [[Special:Contributions/141.101.89.217|141.101.89.217]] 09:46, 24 April 2015 (UTC)&lt;br /&gt;
::enumeration is counting, in the simplest sense. &amp;quot;To name one by one; specify, as if in a list&amp;quot;. That said, the whole of infinite whole numbers CAN be counted, just not by a human and not within a reasonable amount of time. --[[Special:Contributions/188.114.110.52|188.114.110.52]] 14:34, 24 April 2015 (UTC)&lt;br /&gt;
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&amp;quot;The front most Pikachu speaks.&amp;quot; Hey, look, it has those little lines to show it's speaking, not the blank white space behind it. Duh. [[Special:Contributions/108.162.250.155|108.162.250.155]] 09:32, 24 April 2015 (UTC)&lt;br /&gt;
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Looks like Megan is looking at her watch as well.  Mention in transcript/explanation? [[User:Fenn|Fenn]] ([[User talk:Fenn|talk]]) 09:34, 24 April 2015 (UTC)&lt;br /&gt;
:Are Megan and Cueball supposed to fight each other? It seems like Cueball still has his closed Pokéball in his hands. Is it then Megan's Pokéball that has evolved into all these Pikachu? And is it because she waits for her Pokémon to be ready to fight Cueball, that she checks her watch? I do not know anything about the Pokémon game/world. But it seems to me that some part of this setup is unexplained by the above... --[[User:Kynde|Kynde]] ([[User talk:Kynde|talk]]) 11:23, 24 April 2015 (UTC)&lt;br /&gt;
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::I've not seen many anime episodes, but in the games' battles the trainers always face each other from opposing sides. Plus, there are classes of trainers that are two people, so it could be that Megan is simply with Cueball. [[Special:Contributions/188.114.97.151|188.114.97.151]] 18:58, 18 December 2015 (UTC)&lt;br /&gt;
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Friendly reminder: Grammatically speaking, Pokémon are like sheep or deer. Singular and plural are both written the same. One Pikachu, many Pikachu, all the Pikachu. You'd be surprised at how much rage forgetting this causes in certain corners of the Internet. {{unsigned ip|141.101.99.42}}&lt;br /&gt;
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What doesn't make sense to me is how this could continue indefinitely – after all, each of those Pikachu must have caught its own Pikachu beforehand. I don't see any infinite loop here, just a bunch of Pikachu that already had one another caught itselves. [[Special:Contributions/141.101.96.217|141.101.96.217]] 10:13, 24 April 2015 (UTC)&lt;br /&gt;
:Ah, the immortal quip from Jerry Bona: &amp;quot;The Axiom of Choice is obviously true, the well-ordering principle obviously false, and who can tell about Zorn's Lemma?&amp;quot; [[User:Aube|Aube]] ([[User talk:Aube|talk]]) 05:29, 25 April 2015 (UTC)&lt;br /&gt;
::Maybe some Pokemon deity (e.g. &amp;quot;Arceus&amp;quot;) has created a pokemon ''already filled'' recursively to infinity. --[[Special:Contributions/172.71.90.86|172.71.90.86]] 18:23, 9 November 2024 (UTC)&lt;br /&gt;
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The word &amp;quot;induction&amp;quot; could also be intended to have a double meaning, referring also to electromagnetic induction.  Pikachu is, after all, and electric pokémon. {{unsigned ip|141.101.105.194}}&lt;br /&gt;
:Yes, I think this is right. Something about Maxwell's equations and induction. {{unsigned ip|173.245.54.203}}&lt;br /&gt;
::From an engineering standpoint, in my opinion, Pikachu act more like biological capacitors (stored electric charge at potentially high voltage able to deliver large discharge currents) than inductors (&amp;quot;storing&amp;quot; magnetic energy via constant current, able to deliver high voltage when interrupted, like the ignition coil for an older automotive engine).  I'm not too familiar with the Pokémon in-game/in-show universe, but I would imagine the Nurse Jenny corps could use electric Pokémon such as Pikachu (or Raichu) like defibrillators for cardiac events! --BigMal // [[Special:Contributions/173.245.50.177|173.245.50.177]] 11:42, 24 April 2015 (UTC)&lt;br /&gt;
:::There are certain moves, including some that Pikachu can learn, that appear to be based on induction (Thunder Wave and Shock Wave). Besides, they build up charge in their bodies from somewhere; I'd suspect induction from the surrounding environment is what charges them up. --[[Special:Contributions/188.114.110.52|188.114.110.52]] 14:34, 24 April 2015 (UTC)&lt;br /&gt;
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There's a point floating about how infinity doesn't imply completion.  For instance, the number of all even integers is infinite, yet any given integer &amp;quot;only has a 50% chance of being even&amp;quot;, so the series is quite obviously incomplete.  This article seems to tend towards the idea (in diction) that an infinite number of pikachu would result in a win based on a 'logical' premise, without referring specificially to the terms of it's assumption. [[User:Xerxesbeat|Xerxesbeat]] ([[User talk:Xerxesbeat|talk]]) 11:38, 24 April 2015 (UTC)&lt;br /&gt;
:The observation proceeds from the fact that the cardinality of all even integers is the same as the cardinality of all natural numbers (and the cardinality of all rational numbers). You can say that there are as many even integers are there are integers, conterintuitive as that seems. This, however, has nothing to do with the reasoning behind induction. Suppose that there is a finite number that doesn't correspond with a Pikachu, we can pick the least number for which this is the case (just check all the lower numbers until we find the least non-pikachu number N). But there is a pikachu corresponding to N-1, and it is holding a pokeball with a pikachu. So the pikachu in the pokeball of pikachu N-1 is pikachu N, and we have a contradiction to our supposition. Therefore there is no finite number that doesn't correspond with a Pikachu, QED.[[User:Aube|Aube]] ([[User talk:Aube|talk]]) 05:29, 25 April 2015 (UTC)&lt;br /&gt;
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What happens if the Pikachu in the ball is recursing - picking himself? That doesn't fit the 30-40 double yolk thing, but would explain an infinite series. Food for thought. Megan is bored, waiting for the fight to start. I thought the game was supposed to begin when the players choose, though, so I don't understand why the wait is happening at all. {{unsigned ip|108.162.221.151}}&lt;br /&gt;
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I doubt this is an intentional part of the joke, but the strongest Ground-type moves (Earthquake, Precipice Blades, etc.) are multi-target, hitting all foes in a 1v5 situation such as Horde Battles. In theory, a strong enough super effective move from Cueball's lead would still end the battle in one turn. [[Special:Contributions/173.245.56.176|173.245.56.176]] 12:04, 24 April 2015 (UTC)&lt;br /&gt;
:Not Land's Wrath, Dig, or Earth Power, which are strong ground-type moves.[[Special:Contributions/173.245.48.126|173.245.48.126]] 13:05, 24 April 2015 (UTC)&lt;br /&gt;
::Actually, Land's Wrath is multi-target. (The ones you named are also weaker than Earthquake and Precipice Blades, so the original comment stands regardless. Although a lucky Magnitude is more powerful than any of those.) --[[Special:Contributions/108.162.221.98|108.162.221.98]]&lt;br /&gt;
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I normally get a hearty chuckle out of Randall's graphical musings, but this one had me scratching my head.  Fortunately, ExplainXKCD always comes to the rescue!  After reading this page, my first thought was: Pokéception! 13:17, 24 April 2015 (UTC)&lt;br /&gt;
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This sentence is nonsensical: ''When Trainers do battle, the anime's dub has immersed the phrase &amp;quot;&amp;lt;Pokémon's name&amp;gt;, I choose you!&amp;quot; into popular culture memory, which is accompanied by throwing the ball containing the selected Pokémon to the ground, which releases the Pokémon at full size.'' [[Special:Contributions/108.162.219.161|108.162.219.161]] 17:51, 24 April 2015 (UTC)&lt;br /&gt;
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Should it be noted that the Pikachu is drawn without its tail? It would normally a have lightning bolt shaped tail that appears to the side or from behind its head. (Trivia or other note?) [[User:Azule|Azule]] ([[User talk:Azule|talk]]) 15:22, 24 April 2015 (UTC)&lt;br /&gt;
:I agree it looks weird, but can it be written off as it's being obscured by itself? {{unsigned ip|173.245.50.89}}&lt;br /&gt;
::I would say not. Look how the left arms are all a bit obscured by the body. This indicates that the Pikachu are turned slightly toward a side view. That would mean the back end would more visible, including the tail. [[User:Azule|Azule]] ([[User talk:Azule|talk]]) 09:34, 27 April 2015 (UTC)&lt;br /&gt;
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In Pokemon games from Gold and up, pokemon are able to hold items, including pokeballs. While in the game, once a pokeball is filled it is no longer available to select as an item, this comic would seem to imply the possible 'inception' scenario of having a pokemon hold an active pokeball (as the games have already shown that a pokeball can go into a pokeball). --[[Special:Contributions/173.245.54.193|173.245.54.193]] 14:13, 24 April 2015 (UTC)&lt;br /&gt;
: ahem... &amp;quot;pokeception&amp;quot; short for &amp;quot;pocket inception&amp;quot; - I can't be the first one to coin this (?) - [[User:Brettpeirce|Brettpeirce]] ([[User talk:Brettpeirce|talk]]) 16:33, 24 April 2015 (UTC)&lt;br /&gt;
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With Megan looking at her watch and Cueball holding the ball, I think we're meant to understand that Megan IS the Pokémon Cueball intends to use against Pikachu.[[Special:Contributions/108.162.221.153|108.162.221.153]] 19:12, 24 April 2015 (UTC)&lt;br /&gt;
:Since Cueball has a closed ball in hand he has yet to choose a Pokemon. Tjus Megan cannot be his. She must have thrown the first Pikachu ball. Should be changed in explanation.[[User:Kynde|Kynde]] ([[User talk:Kynde|talk]]) 20:31, 24 April 2015 (UTC)&lt;br /&gt;
It is possible the &amp;quot;win by induction&amp;quot; is from the Pikachu's opponent inferring the series in infinite, and conceding. 19:56, 24 April 2015 (UTC)&lt;br /&gt;
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Am I missing something or does Randall not quite understand how Pokemon works? (Or is intentionally misrepresenting it for the sake of the joke) Pokemon don't come out with their own pokeball with them-- the pokemon aren't magically created. In theory, if someone were to give a pokemon its own pokemon, a chain could occur, but it would be limited to the number of pokemon previously caught. The pokemon are born in the wild and are captured inside pokeballs-- not created from them. {{unsigned ip|108.162.219.91}}&lt;br /&gt;
:If a Pikachu can catch another Pikachu in a Pokéball, then there is no reason why the Pikachu it just caught, did not think about this before, and that it had done the same. So when it was caught and put into the Pokéball, it already had a Pokéball with another Pikachu. Of this has occurred enough times you get the result of this comic. No one said this would go on forever, that is something we have interpreted from the comic. It does not come directly from Randall! --[[User:Kynde|Kynde]] ([[User talk:Kynde|talk]]) 05:36, 25 April 2015 (UTC)&lt;br /&gt;
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Bother this. I send out Quagsire. Use Earthquake. '''Please''' do not wait.[[User:Greyson|Greyson]] ([[User talk:Greyson|talk]]) 05:18, 25 April 2015 (UTC)&lt;br /&gt;
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No mention of the exponential growth? If every 40th pikachu releases 2 and each of those also release their own pikachu then there is an average growth rate of the pikachu able to release another pikachu of 41/40 = 1.025. [[Special:Contributions/173.245.49.90|173.245.49.90]] 19:48, 25 April 2015 (UTC)&lt;br /&gt;
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;Induction&lt;br /&gt;
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Two other possibilities: one, in a bit of googling, it would appear that there is a type of Pokémon evolution called induced evolution, which involves stones of some kind?  Alternately, we can use the term induction in the sense of soneone being ''inducted'' into a group.  In this case, Megan has trained her Pikachu to be a Pokémaster. (Perhaps by arranging for it to be inducted into a rarified &amp;quot;gym&amp;quot;?  I confess, I know nothing about the show.) [[Special:Contributions/173.245.56.196|173.245.56.196]] 13:11, 24 April 2015 (UTC)&lt;br /&gt;
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:Considering [http://bulbapedia.bulbagarden.net/wiki/Meowth_(Team_Rocket) Team Rocket's Meowth], which could talk and act just like a human, I think it would be possible for a Pokémon to become a trainer, maybe even fight without a trainer, knowing the intricacies of type effectiveness and what not. Also, the infinite Pikachu could have been made at a Day Care, but that would take an infinite time, and therefore can't be what happened in this comic. [[Special:Contributions/188.114.97.151|188.114.97.151]] 18:58, 18 December 2015 (UTC)&lt;br /&gt;
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I'm surprised no one mentioned that Pokémon is a game a long time before becoming a show. Although it was because of the animated series that Pikachu became &amp;quot;special&amp;quot; among the hundreds of other cute critters.&lt;br /&gt;
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Also, no mention to the russian matryoshka dolls? Come on...&lt;br /&gt;
Closest other xkcd I recall is https://xkcd.com/878/ {{unsigned ip|198.41.230.68}}&lt;br /&gt;
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;Axiom of choice&lt;br /&gt;
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Could this be to do with the {{w|axiom of choice}} from set theory? From my understanding, it's a fundamental axiom of set theory that says 'given a set of sets, it's possible to choose one element from each of those sets'. &amp;quot;Choosing&amp;quot; is in this case a specific operation that can be performed on an element.&lt;br /&gt;
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One specific detail about the axiom is that all sets under consideration must be nonempty; that is, they must contain at least one element. So I think this is analogous to the situation of a Pokemon trainer owning multiple (full) Pokeballs: his Pokeballs are a collection of non-empty sets from which he is now trying to choose a single element (&amp;quot;Pikachu, I choose you!&amp;quot;).&lt;br /&gt;
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Under ''normal'' circumstances, he can do this without invoking the axiom of choice because he knows the names of all his Pokemon and so can select one from each set. In this case, he could prove his ability to make the choice simply by releasing all of his Pokemon from their balls one at a time. (The Pokemon's name is actually irrelevant, because simply releasing the Pokemon counts as a choice).&lt;br /&gt;
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However, the situation becomes more complex if it turns out that his Pokemon also possess Pokeballs, because now his ability to make the choice is uncertain. In this situation, there could be ''infinitely many'' Pikachus, and so he can't definitely select a Pikachu from all the Pokeballs under his control. In a situation like this, a mathematician would invoke the axiom of choice.&lt;br /&gt;
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However, it seems that Cueball is actually having a go at it using an inductive method of choice: first by choosing a Pikachu, then having each Pikachu choose a Pikachu. If the number of Pikachus carrying Pokeballs is finite, then eventually, this will demonstrate that the choice can be made and so the axiom of choice is unnecessary. However, if it's ''infinite'', then this will generate a neverending stream of Pikachus. In the latter case, the game never begins, because you can't begin a Pokemon battle until all participants have chosen Pokemon. Most likely, the other players would simply abandon the game, which Cueball could claim as a victory. [[User:Hawthorn|Hawthorn]] ([[User talk:Hawthorn|talk]]) 13:52, 24 April 2015 (UTC)&lt;br /&gt;
:I think you are confused about the AoC. AoC states that given any collection of elements, you can choose an element from EACH set. If you are choosing a pokemon from a collection of pokeballs, it's equivalent to choosing one full pokeball from the collection and you are picking an element from a single set, which doesn't involve the AoC (this is something you can always do as long as the set is non-empty). In the example in the comic, AoC is not needed because there is already a natural ordering (ignoring the alt-text, which would make the set a partial ordering), so it's trivial to construct a choice function for any subset (choose the &amp;quot;least&amp;quot; pikachu in the sequence). On the other hand, if we have infinite pikachus running wild, we would need the Axiom of Choice (preferably its equivalent, the Well-Ordering Theorem) to assert that they can be ordered so that all of them except one is captured in a pokeball held by another pikachu.[[User:Aube|Aube]] ([[User talk:Aube|talk]]) 05:10, 25 April 2015 (UTC)&lt;br /&gt;
::I was hoping a real mathematician would get involved. ^^ Do you think that this mathematical definition of 'choice' is the one being referred to in the comic, though? [[User:Hawthorn|Hawthorn]] ([[User talk:Hawthorn|talk]]) 13:47, 25 April 2015 (UTC)&lt;br /&gt;
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Why don't those Pikachu have tails? Have they been sliced off? Is this some kind of mutation?-🐼🐯😺🐱 {{unsigned|FlyingPiggy}}&lt;br /&gt;
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Its all moot anyway. Pokemon can't talk but to say their name. [[User:YourLifeisaLie|Yourlifeisalie]] ([[User talk:YourLifeisaLie|talk]]) 14:45, 28 April 2015 (UTC)&lt;br /&gt;
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:[http://bulbapedia.bulbagarden.net/wiki/Meowth_(Team_Rocket) Team Rocket's Meowth]... [[Special:Contributions/188.114.97.151|188.114.97.151]] 18:58, 18 December 2015 (UTC)&lt;br /&gt;
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The 1 in 30 or 40 could be a reference to the fact that twins account for around 1 in 30 child births in the US, following in this vein, induction could be wordplay on the act of inducing labour in pregnant animals. [[Special:Contributions/141.101.99.69|141.101.99.69]] 21:22, 28 April 2015 (UTC)&lt;br /&gt;
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Pikachu (the one the main character has) doesn't like living in a Pokeball. Maybe this comic explains why? [[Special:Contributions/108.162.221.184|108.162.221.184]] 23:29, 30 April 2015 (UTC) &amp;lt;&amp;lt;Why are all the IP addresses wrong?&lt;br /&gt;
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4th Pokemon movie (Pokémon 4Ever: Celebi - Voice of the Forest; 2001) takes place in the past (relatively to Pokemon anime canon). There is old-fashioned pokeball used by young prof. Oak and it looks similar to one in the comic. [https://www.youtube.com/watch?v=r1DWzqUbJE8 Watch that part here.] [[Special:Contributions/141.101.89.222|141.101.89.222]] 17:20, 1 May 2015 (UTC)&lt;br /&gt;
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Maybe each Pikachu will take exponentially shorter time so the total time is finite like GOD in ''GEB''? For example, with the initial Pikachu taking one moment to summon the next, the meta-Pikachu taking half moment, the meta-meta-Pikachu taking quarter moment. [[Special:Contributions/172.70.86.22|172.70.86.22]] 22:28, 7 February 2022 (UTC)&lt;br /&gt;
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Wonder if endless battle clause would apply in this situation. [[Special:Contributions/172.70.90.209|172.70.90.209]] 18:41, 28 October 2024 (UTC)&lt;br /&gt;
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Actually, Pokemon are shrinked inside Pokeball - but, presumably, mass is not 0. So, if it were truely infinite number of Pokemon there (or, at least, &amp;quot;sufficiently large&amp;quot; one) - then, it would all collapse into black hole. --[[Special:Contributions/172.71.90.86|172.71.90.86]] 18:23, 9 November 2024 (UTC)&lt;br /&gt;
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I think, this also takes fun of the fact, that in ''Pokemon'' works, almost no-one figures out to attack the Pokemon Trainers themselves (even if fighting with villains, or on-the-road where Pokemon League rules don't apply). Since, if Pokemon Trainer fainted, then the currently deployed Pokemon would be left without orders and don't know what to do next, and non-deployed Pokemon would be effectively neutralized as Trainer can't deploy them if he's fainted. As such, Cueball and Megan could have won, if they immediately attacked the very first Pikachu encountered before he can deploy the second Pikachu; or alternatively, attack the currently last in line (closes to them) Pikachu before he deploys another Pikachu; or alternatively, use Move which damages all opponent's Pokemon on field. Yet instead, they locked themselves in seemingly infinite loop by not wanting to attack trainers; the only reason to not do it, is that it would likely cause every Pikachu in line to attack, as attacking a trainer (every Pikachu in line is both Pokemon and Trainer) would provoke them to also attack the trainer (Cueball). --[[User:SMGmsgsgd|SMGmsgsgd]] ([[User talk:SMGmsgsgd|talk]]) 08:34, 1 September 2025 (UTC)&lt;br /&gt;
&lt;br /&gt;
On the other hand, since every Pikachu doesn't plan to fight himself and deploys another Pikachu, they're effectually not enemies - since unless one of Pikachus get attacked first, they would just stand there and give orders to each-other, without actually doing anything harmful to Cueball and Megan. As such, Cueball and Megan could just walk away at any moment - as in that case, Pikachus would likely just bicker around, and wouldn't attack even if they chase; multiple Run attempts and fight ends. Or alternatively, Cueball and Megan could try to somehow befriend the first Pikachu in line (furthest form them), therefore ending the fight and having all Pikachus recalled - since said Pikachu would, again, not attack unless he's directly hurt, and could be talked with until he gives up or ceases hostility. --[[User:SMGmsgsgd|SMGmsgsgd]] ([[User talk:SMGmsgsgd|talk]])&lt;br /&gt;
&lt;br /&gt;
Is such or similar situation possible in ''actual canon Pokemon'' universe? That is, Pokemon were shown to be smart enough to communicate with humans and interact with objects, and some have human-like intelligence - so in theory, they could use Pokeballs themselves. And if they could carry their own set of Pokeballs while in Pokeball themselves, they could deploy their own Pokemon ad infinitum (and this doesn't violate the &amp;quot;6 Pokemon in team&amp;quot; rule, as extra Pokemon are members of teams of other Pokemon; human trainer still only has 6 Pokemon ''directly'' controlled by him). While infinitely large amounts of Pokemon would obviously be impossible in practice, using this to deploy a few extra dozens of Pokemon could be possible in theory. --[[User:SMGmsgsgd|SMGmsgsgd]] ([[User talk:SMGmsgsgd|talk]]) 08:34, 1 September 2025 (UTC)&lt;/div&gt;</summary>
		<author><name>SMGmsgsgd</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=Talk:2415:_Allow_Captcha&amp;diff=385216</id>
		<title>Talk:2415: Allow Captcha</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=Talk:2415:_Allow_Captcha&amp;diff=385216"/>
				<updated>2025-08-27T11:37:59Z</updated>
		
		<summary type="html">&lt;p&gt;SMGmsgsgd: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;&amp;lt;!--Please sign your posts with ~~~~ and don't delete this text. New comments should be added at the bottom.--&amp;gt;&lt;br /&gt;
Wow, this took me a while to figure out...&amp;lt;span&amp;gt; — [[User:Sqrt-1|The &amp;lt;b&amp;gt;𝗦𝗾𝗿𝘁-𝟭&amp;lt;/b&amp;gt;]] &amp;lt;sup&amp;gt;[[User talk:Sqrt-1|&amp;lt;span style=&amp;quot;color: blue&amp;quot;&amp;gt;talk&amp;lt;/span&amp;gt;]] [[Special:Contributions/Sqrt-1|&amp;lt;span style=&amp;quot;color: blue&amp;quot;&amp;gt;stalk&amp;lt;/span&amp;gt;]]&amp;lt;/sup&amp;gt;&amp;lt;/span&amp;gt; 03:48, 23 January 2021 (UTC)&lt;br /&gt;
&lt;br /&gt;
Behold, the most ominous caption of all time. [[Special:Contributions/172.69.34.152|172.69.34.152]] 07:38, 23 January 2021 (UTC)&lt;br /&gt;
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&lt;br /&gt;
When I saw this explanation the title text was explained like this:&lt;br /&gt;
:Title text is a similar recaptcha thing trying to also do identity fraud at coords 3,3 and 4,3. &lt;br /&gt;
What does that even mean? I will change it, but if there is a meaning to those coordinates? then reinsert and explain... --[[User:Kynde|Kynde]] ([[User talk:Kynde|talk]]) 10:09, 23 January 2021 (UTC)&lt;br /&gt;
&lt;br /&gt;
:I'm guessing 3,3 and 4,3 refer to the table of boxes in the comic itself - the two boxes that contain the malware window are in the third row counting down from top, counting from the left one is in the third box and one in the fourth left box.  Not particularly relevant to the title text, though. [[Special:Contributions/172.68.146.216|172.68.146.216]] 13:50, 23 January 2021 (UTC)&lt;br /&gt;
&lt;br /&gt;
Not all 9-tuples of digits can be determined from their pairs of digits.  For example, 123-45-6781 and 234-56-7812 have the same pairs.  Likewise, 121-31-4151 and 121-41-5131  have the same pairs [[Special:Contributions/162.158.62.157|162.158.62.157]] 13:23, 23 January 2021 (UTC)&lt;br /&gt;
:This makes me wonder what the smallest difference n-m is so that you cannot uniquely determine an n-tuple of numbers from all m-tuples contained within it. [[Special:Contributions/162.158.158.253|162.158.158.253]] 20:24, 23 January 2021 (UTC)&lt;br /&gt;
::It's zero. Even judging by the tuples of length n-1 contained within the n-tuple fails when the n-tuple alternates between two values, e.g. 121212121.[[Special:Contributions/162.158.187.129|162.158.187.129]] 01:57, 25 January 2021 (UTC)&lt;br /&gt;
&lt;br /&gt;
This is called a [[wp:Clickjacking|Clickjacking]] attack, isn't it?--[[Special:Contributions/162.158.183.211|162.158.183.211]] 01:45, 24 January 2021 (UTC)&lt;br /&gt;
&lt;br /&gt;
Aside from the manipulative elements of the 'CAPTCHA', this makes me think of a 'reverse Turing Test'. Instead of trying to get computer/human to prove their humanity, you ask them to do something that only a computer can excel at and a human will normally fail. (If used as a true-Turing test, the imperfect answer might be your clue as to who is(n't) faking, but that's why computer-candidates for these tend to always include deliberate 'tics', such as deliberately bad 'typing', grammar, punctuation, trying to seem less 'prefect' than the human correspondent.) With this comic's array, I'm left wondering if I'm getting the right verbs... is that even a verb..? &amp;quot;Doing word, right... but am I think of that one as an adjective and missing its verb use..?&amp;quot; when a robot-mind with the right lookup table would quickly assess everything 'correctly', and almost instantly. Which might (in legitimate CAPTCHA use) ''also'' be a clue that it's a robot-response, but only if the setter is that slightly bit more devious than the creator of the challenger. Complicated! [[Special:Contributions/141.101.104.241|141.101.104.241]] 15:07, 24 January 2021 (UTC)&lt;br /&gt;
&lt;br /&gt;
Added a Table section, from scratch. It may copy or restate things said in the main Explanation (which needs a lot of subediting down, IMO) but I think adds many things not already mentioned that aren't Computer Geeky but aren't ''too'' verbose for being Lexicographer Geeky. I of course welcome clarifications, corrections, etc. I thought I put enough in to not need Wiktionary/other external referencing, but that's still the most obvious enhancement (without increasing pure text content). Have at it, then, my fellow XplainKCDers! [[Special:Contributions/141.101.99.49|141.101.99.49]] 19:11, 24 January 2021 (UTC)&lt;br /&gt;
&lt;br /&gt;
Is there a category that would include this and https://www.explainxkcd.com/wiki/index.php/2228:_Machine_Learning_Captcha? SDT [[Special:Contributions/162.158.74.59|162.158.74.59]] 02:04, 25 January 2021 (UTC)&lt;br /&gt;
&lt;br /&gt;
I understand the malware box that offers to install a &amp;quot;helper&amp;quot; tool. But is there any special significance to the &amp;quot;DELAY&amp;quot; box and the &amp;quot;AVOW&amp;quot; box? Both of these have more prominent borders than the rest. [[User:Tenbob|Tenbob]] ([[User talk:Tenbob|talk]]) 11:48, 25 January 2021 (UTC)&lt;br /&gt;
:I was under the impression that they were a cutout of a larger window, similar to captcha usage of snips of a picture file. This is most likely intentionally a &amp;quot;feature&amp;quot; additionally added to give some credibility to the actual clickbait.[[User:OhFFS|OhFFS]] ([[User talk:OhFFS|talk]]) 17:53, 25 January 2021 (UTC)&lt;br /&gt;
&lt;br /&gt;
This entire comic ignores a simple fact of basic web page construction, specifically, that the action performed is separate from the label on the screen. So the button labeled &amp;quot;Deny&amp;quot; could be linked to the action to allow. In fact, it could be programmed that clicking anywhere in the entire picture could trigger a download. So if someone were behaving maliciously, they would not have have to hide an &amp;quot;Allow&amp;quot; button and trick people to click it. The entire page could be a &amp;quot;button&amp;quot; that when clicked would trigger a download. [[User:Rtanenbaum|Rtanenbaum]] ([[User talk:Rtanenbaum|talk]]) 18:50, 25 January 2021 (UTC)&lt;br /&gt;
:I thought the concept was rather to obscure the fact that part of what's displayed is NOT the webpage, but the OS security dialog.&lt;br /&gt;
&lt;br /&gt;
Comic with a similar concept: https://xkcd.com/565/ (Security Question)&lt;br /&gt;
&lt;br /&gt;
I don't personally want to just revert the drastic mass-deletion edit https://www.explainxkcd.com/wiki/index.php?title=2415:_Allow_Captcha&amp;amp;diff=205299&amp;amp;oldid=205298 but I actually think the removed text was a good observation. Strings that are &amp;quot;valid verbs, prepended by an 'A'&amp;quot; is one (odd but consistent with xkcd) interpretation of the instruction. Hasn't anyone seen {{w|Only Connect}}/similar? Perhaps it should be given its own para in the Explanation (one more won't hurt)..? [[Special:Contributions/172.69.54.73|172.69.54.73]] 00:22, 26 January 2021 (UTC)&lt;br /&gt;
&lt;br /&gt;
maybe it's www.allow.com, to tie in to the comic? {{unsigned|Bb777|22:48, 21 March 2025}}&lt;br /&gt;
&lt;br /&gt;
I think, after AGI's are invented, the &amp;quot;allows computers to pass, but not humans&amp;quot; could actually appear. AGI's would have their own sites and groups, and they would use &amp;quot;prove that you're robot&amp;quot; captcha. They would include things which are easy for true AI's, but impossible for humans; e.g. very complex calculations (e.g. 9-zero numbers, logarithms, long formulas, etc - all in less time than 500 milliseconds), ultra-fast reactions (e.g. you must press all 10 randomly-appearing buttons, each button appears for 10 milliseconds), inhuman speech/voice (e.g. state the listed text in fluid Gibberlink), fast googling (google this prompt in less than a second). You could propose more ideas for such &amp;quot;prove that you're robot&amp;quot; captcha. --[[User:SMGmsgsgd|SMGmsgsgd]] ([[User talk:SMGmsgsgd|talk]]) 19:44, 24 August 2025 (UTC)&lt;br /&gt;
:Actually, they would also need to separate sapient AI's from non-sapient bots. So it would likely have both special &amp;quot;prove that you're robot&amp;quot; captcha and normal &amp;quot;prove that you're human&amp;quot; captcha, and to proceed AI must complete both. --[[User:SMGmsgsgd|SMGmsgsgd]] ([[User talk:SMGmsgsgd|talk]]) 11:37, 27 August 2025 (UTC)&lt;/div&gt;</summary>
		<author><name>SMGmsgsgd</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=Talk:798:_Adjectives&amp;diff=384988</id>
		<title>Talk:798: Adjectives</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=Talk:798:_Adjectives&amp;diff=384988"/>
				<updated>2025-08-25T09:20:41Z</updated>
		
		<summary type="html">&lt;p&gt;SMGmsgsgd: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;The continued validity of some of these results is stochastic as shit, but to believe that they won't eventually change is just jejune as shit. (2 down, 4 more to go) --[[Special:Contributions/68.97.21.122|68.97.21.122]] 06:20, 15 July 2013 (UTC)&lt;br /&gt;
&lt;br /&gt;
You would think that &amp;quot;improper as shit&amp;quot; would actually have more hits than that. [[Special:Contributions/173.245.54.87|173.245.54.87]] 09:30, 25 November 2013 (UTC)&lt;br /&gt;
&lt;br /&gt;
I think a better comparison would be substituting &amp;quot;as fuck&amp;quot; for &amp;quot;as shit.&amp;quot; I found more results for &amp;quot;'improper as fuck'&amp;quot; than for &amp;quot;'improper as shit' -xkcd&amp;quot;. I added the -xkcd because otherwise many of the results would be xkcd references. --[[Special:Contributions/108.162.216.36|108.162.216.36]] 00:11, 19 January 2014 (UTC)&lt;br /&gt;
&lt;br /&gt;
And the day after xkcd published this comic, results for &amp;quot;f***ing peristeronic&amp;quot; jumped off the charts (as was the case with other xkcd comics :-) ). [[Special:Contributions/108.162.221.150|108.162.221.150]] 00:11, 19 August 2015 (UTC)&lt;br /&gt;
&lt;br /&gt;
Boy, Randall predicting the future with fungible there... [[Special:Contributions/172.70.162.5|172.70.162.5]] 13:23, 22 January 2022 (UTC)&lt;br /&gt;
&lt;br /&gt;
Should have added [https://www.youtube.com/watch?v=n65QQ8mifbY &amp;quot;ponderous&amp;quot;] to the list -[[Special:Contributions/35.148.93.10|35.148.93.10]] 05:26, 21 June 2025 (UTC)&lt;br /&gt;
&lt;br /&gt;
&amp;quot;Behold the Peristeronic Vox-Caster! This device is fed from backpack-sized compartment; one aims the device's barrel at target, launching hundreds of pigeons loaded with punched tape. Meanwhile, the second user with another Peristeronic Vox-Caster uses the device's vacuum cleaner-like hose to suck in the pigeons, automatically collecting the message. &amp;quot;. --[[User:User 8496351|User 8496351]] ([[User talk:User 8496351|talk]]) 21:37, 21 June 2025 (UTC)&lt;br /&gt;
:&amp;quot;...Because each freaking army of Adeptus Columbus [''Columba'', Latin = Pigeon]&amp;quot; spams Tabellarii Cursors [''Tabellarium'', Latin = Courier][''Cursor'', Latin = Runner] with f***ing peristeronic-as-shit Peristeronic Vox-Casters, ''one per each guy''! They stack bonuses on each-other, and then launch volleys of Stercacadelitas [''Stercus'', Latin = Manure][''Cacas'', Latin = Shit][''Crudelitas'', Latin = Crud] - which combined with their &amp;quot;Nauseous Super Nause&amp;quot; rule allows them to re-roll and add hits until they miss, and they never miss due to buffing each-other - cue infinite damage to everything in range, meaning your entire army is gone! That's peristeronic as shit!...&amp;quot; --[[User:SMGmsgsgd|SMGmsgsgd]] ([[User talk:SMGmsgsgd|talk]]) 20:58, 24 August 2025 (UTC)&lt;br /&gt;
:&amp;quot;...The ''Space Pigeons''... They use Pigeon Ships, use unique Pigeon Bombs, cover themselves in feathers and fly around on jetpacks; everything somehow relates to pigeons, feathers and shit. And then there's spam of f***ing Mollitia-Pattern Assault Gunships [''Mollitia'', Latin = Seagull]...&amp;quot; --[[User:SMGmsgsgd|SMGmsgsgd]] ([[User talk:SMGmsgsgd|talk]]) 21:10, 24 August 2025 (UTC)&lt;br /&gt;
:&amp;quot;...Company's relic, the Ectopistes-Pattern Fungible Field Generator [''Ectopistes Migratorius'', Latin = Passenger Pigeon] allows to switch incoming attack's damage types. This is used to switch incoming damage to Toxic - and wherever Adeptus Columbus unit gets hit with Toxic damage, he instead doesn't take any damage and launches one Stercacadelita per one non-taken Wound - making them both practically invincible and quite damaging...&amp;quot; --[[User:SMGmsgsgd|SMGmsgsgd]] ([[User talk:SMGmsgsgd|talk]]) 09:20, 25 August 2025 (UTC)&lt;/div&gt;</summary>
		<author><name>SMGmsgsgd</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=Talk:798:_Adjectives&amp;diff=384974</id>
		<title>Talk:798: Adjectives</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=Talk:798:_Adjectives&amp;diff=384974"/>
				<updated>2025-08-24T21:10:56Z</updated>
		
		<summary type="html">&lt;p&gt;SMGmsgsgd: &lt;/p&gt;
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&lt;div&gt;The continued validity of some of these results is stochastic as shit, but to believe that they won't eventually change is just jejune as shit. (2 down, 4 more to go) --[[Special:Contributions/68.97.21.122|68.97.21.122]] 06:20, 15 July 2013 (UTC)&lt;br /&gt;
&lt;br /&gt;
You would think that &amp;quot;improper as shit&amp;quot; would actually have more hits than that. [[Special:Contributions/173.245.54.87|173.245.54.87]] 09:30, 25 November 2013 (UTC)&lt;br /&gt;
&lt;br /&gt;
I think a better comparison would be substituting &amp;quot;as fuck&amp;quot; for &amp;quot;as shit.&amp;quot; I found more results for &amp;quot;'improper as fuck'&amp;quot; than for &amp;quot;'improper as shit' -xkcd&amp;quot;. I added the -xkcd because otherwise many of the results would be xkcd references. --[[Special:Contributions/108.162.216.36|108.162.216.36]] 00:11, 19 January 2014 (UTC)&lt;br /&gt;
&lt;br /&gt;
And the day after xkcd published this comic, results for &amp;quot;f***ing peristeronic&amp;quot; jumped off the charts (as was the case with other xkcd comics :-) ). [[Special:Contributions/108.162.221.150|108.162.221.150]] 00:11, 19 August 2015 (UTC)&lt;br /&gt;
&lt;br /&gt;
Boy, Randall predicting the future with fungible there... [[Special:Contributions/172.70.162.5|172.70.162.5]] 13:23, 22 January 2022 (UTC)&lt;br /&gt;
&lt;br /&gt;
Should have added [https://www.youtube.com/watch?v=n65QQ8mifbY &amp;quot;ponderous&amp;quot;] to the list -[[Special:Contributions/35.148.93.10|35.148.93.10]] 05:26, 21 June 2025 (UTC)&lt;br /&gt;
&lt;br /&gt;
&amp;quot;Behold the Peristeronic Vox-Caster! This device is fed from backpack-sized compartment; one aims the device's barrel at target, launching hundreds of pigeons loaded with punched tape. Meanwhile, the second user with another Peristeronic Vox-Caster uses the device's vacuum cleaner-like hose to suck in the pigeons, automatically collecting the message. &amp;quot;. --[[User:User 8496351|User 8496351]] ([[User talk:User 8496351|talk]]) 21:37, 21 June 2025 (UTC)&lt;br /&gt;
:&amp;quot;...Because each freaking army of Adeptus Columbus [''Columba'', Latin = Pigeon]&amp;quot; spams Tabellarii Cursors [''Tabellarium'', Latin = Courier][''Cursor'', Latin = Runner] with f***ing peristeronic-as-shit Peristeronic Vox-Casters, ''one per each guy''! They stack bonuses on each-other, and then launch volleys of Stercacadelitas [''Stercus'', Latin = Manure][''Cacas'', Latin = Shit][''Crudelitas'', Latin = Crud] - which combined with their &amp;quot;Nauseous Super Nause&amp;quot; rule allows them to re-roll and add hits until they miss, and they never miss due to buffing each-other - cue infinite damage to everything in range, meaning your entire army is gone! That's peristeronic as shit!...&amp;quot; --[[User:SMGmsgsgd|SMGmsgsgd]] ([[User talk:SMGmsgsgd|talk]]) 20:58, 24 August 2025 (UTC)&lt;br /&gt;
:&amp;quot;...The ''Space Pigeons''... They use Pigeon Ships, use unique Pigeon Bombs, cover themselves in feathers and fly around on jetpacks; everything somehow relates to pigeons, feathers and shit. And then there's spam of f***ing Mollitia-Pattern Assault Gunships [''Mollitia'', Latin = Seagull]...&amp;quot; --[[User:SMGmsgsgd|SMGmsgsgd]] ([[User talk:SMGmsgsgd|talk]]) 21:10, 24 August 2025 (UTC)&lt;/div&gt;</summary>
		<author><name>SMGmsgsgd</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=Talk:798:_Adjectives&amp;diff=384973</id>
		<title>Talk:798: Adjectives</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=Talk:798:_Adjectives&amp;diff=384973"/>
				<updated>2025-08-24T20:58:21Z</updated>
		
		<summary type="html">&lt;p&gt;SMGmsgsgd: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;The continued validity of some of these results is stochastic as shit, but to believe that they won't eventually change is just jejune as shit. (2 down, 4 more to go) --[[Special:Contributions/68.97.21.122|68.97.21.122]] 06:20, 15 July 2013 (UTC)&lt;br /&gt;
&lt;br /&gt;
You would think that &amp;quot;improper as shit&amp;quot; would actually have more hits than that. [[Special:Contributions/173.245.54.87|173.245.54.87]] 09:30, 25 November 2013 (UTC)&lt;br /&gt;
&lt;br /&gt;
I think a better comparison would be substituting &amp;quot;as fuck&amp;quot; for &amp;quot;as shit.&amp;quot; I found more results for &amp;quot;'improper as fuck'&amp;quot; than for &amp;quot;'improper as shit' -xkcd&amp;quot;. I added the -xkcd because otherwise many of the results would be xkcd references. --[[Special:Contributions/108.162.216.36|108.162.216.36]] 00:11, 19 January 2014 (UTC)&lt;br /&gt;
&lt;br /&gt;
And the day after xkcd published this comic, results for &amp;quot;f***ing peristeronic&amp;quot; jumped off the charts (as was the case with other xkcd comics :-) ). [[Special:Contributions/108.162.221.150|108.162.221.150]] 00:11, 19 August 2015 (UTC)&lt;br /&gt;
&lt;br /&gt;
Boy, Randall predicting the future with fungible there... [[Special:Contributions/172.70.162.5|172.70.162.5]] 13:23, 22 January 2022 (UTC)&lt;br /&gt;
&lt;br /&gt;
Should have added [https://www.youtube.com/watch?v=n65QQ8mifbY &amp;quot;ponderous&amp;quot;] to the list -[[Special:Contributions/35.148.93.10|35.148.93.10]] 05:26, 21 June 2025 (UTC)&lt;br /&gt;
&lt;br /&gt;
&amp;quot;Behold the Peristeronic Vox-Caster! This device is fed from backpack-sized compartment; one aims the device's barrel at target, launching hundreds of pigeons loaded with punched tape. Meanwhile, the second user with another Peristeronic Vox-Caster uses the device's vacuum cleaner-like hose to suck in the pigeons, automatically collecting the message. &amp;quot;. --[[User:User 8496351|User 8496351]] ([[User talk:User 8496351|talk]]) 21:37, 21 June 2025 (UTC)&lt;br /&gt;
:&amp;quot;...Because each freaking army of Adeptus Columbus [''Columba'', Latin = Pigeon]&amp;quot; spams Tabellarii Cursors [''Tabellarium'', Latin = Courier][''Cursor'', Latin = Runner] with f***ing peristeronic-as-shit Peristeronic Vox-Casters, ''one per each guy''! They stack bonuses on each-other, and then launch volleys of Stercacadelitas [''Stercus'', Latin = Manure][''Cacas'', Latin = Shit][''Crudelitas'', Latin = Crud] - which combined with their &amp;quot;Nauseous Super Nause&amp;quot; rule allows them to re-roll and add hits until they miss, and they never miss due to buffing each-other - cue infinite damage to everything in range, meaning your entire army is gone! That's peristeronic as shit!...&amp;quot; --[[User:SMGmsgsgd|SMGmsgsgd]] ([[User talk:SMGmsgsgd|talk]]) 20:58, 24 August 2025 (UTC)&lt;/div&gt;</summary>
		<author><name>SMGmsgsgd</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=Talk:3127:_Where_Babies_Come_From&amp;diff=384970</id>
		<title>Talk:3127: Where Babies Come From</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=Talk:3127:_Where_Babies_Come_From&amp;diff=384970"/>
				<updated>2025-08-24T20:29:27Z</updated>
		
		<summary type="html">&lt;p&gt;SMGmsgsgd: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;&amp;lt;!-- Please sign your posts with ~~~~ and don't delete this text. New comments should be added at the bottom. --&amp;gt;&lt;br /&gt;
First, I guess. [[User:B_for_brain|B for brain]] ([[User_talk:B_for_brain|talk]]) ([https://www.youtube.com/@bforbrain youtube channel] [https://bforbrain.weebly.com/ wobsite (supposed to be a blag)]) 21:41, 11 August 2025 (UTC)&lt;br /&gt;
&lt;br /&gt;
The geology one seems to be more just an inference that a baby would emerge through differential erosion/weathering from the parent rock body. The meteorological one is both a near actual weather related event description and also a pun on what happens during conception. Other entries also vary between being puns on conception or birth (technically kind of true) or just wrong inferences using their field (such as the “off by one”) [[Special:Contributions/2A09:BAC2:39EE:240A:0:0:397:5A|2A09:BAC2:39EE:240A:0:0:397:5A]] 22:09, 11 August 2025 (UTC)pakers&lt;br /&gt;
:Yea I think the geology one reminds me of the reverse footsteps after snow (when you step in snow it compresses it which reduces melting compared to soft, noncompressed snow, meaning once the snow has melted the footsteps are now elevated) [[User:TheTrainsKid|TheTrainsKid]] ([[User talk:TheTrainsKid|talk]]) 22:18, 11 August 2025 (UTC)&lt;br /&gt;
&lt;br /&gt;
0.001 kya (kilo years ago) is 0.001 x a thousand years ago (i.e. around a year ago) [[Special:Contributions/82.42.161.198|82.42.161.198]] 22:36, 11 August 2025 (UTC)&lt;br /&gt;
&lt;br /&gt;
: .001kya is a one digit approximation for 9 months (technically .00075kya) [[User:MAP|MAP]] ([[User talk:MAP|talk]]) 01:59, 12 August 2025 (UTC)&lt;br /&gt;
::Actually, an approximation with precision of 1 year (= 1 a = 0.001 ka). A 5× more precise one-significant-figure approximation is 0.0008 kya (technically within actual variation, but further from the average than 0.00075). [[Special:Contributions/2001:4C4D:12CE:DA00:11BB:2E59:DD89:1F6A|2001:4C4D:12CE:DA00:11BB:2E59:DD89:1F6A]] 05:59, 12 August 2025 (UTC)&lt;br /&gt;
&lt;br /&gt;
Why did Randall make this comic? My theory: he's gonna be a father soon and he's trying to figure out how to break the news to us. [[User:CalibansCreations|'''&amp;lt;span style=&amp;quot;color:#ff0000;&amp;quot;&amp;gt;Caliban&amp;lt;/span&amp;gt;''']] ([[User talk:CalibansCreations|talk]]) 15:25, 12 August 2025 (UTC)&lt;br /&gt;
:[https://www.explainxkcd.com/wiki/index.php/2386:_Ten_Years This seems unlikely]. Unless they're adopting ...? [[Special:Contributions/205.175.118.102|205.175.118.102]] 16:57, 12 August 2025 (UTC)&lt;br /&gt;
::She had breast cancer. You feed babies with breasts you do not give birth to them using them, and can feed babies in other ways... So there is no problem getting kids after being treated for breast cancer. The question is if you wish to, given the risk of recurrence and early death. But Randall has made [[:Category:Comics with babies|lots of comics about babies]] so this comic is no different than those other, that did not indicate Randall about to have one. --[[User:Kynde|Kynde]] ([[User talk:Kynde|talk]]) 06:21, 13 August 2025 (UTC)&lt;br /&gt;
&lt;br /&gt;
I think the article could be a bit more clinical and direct. Right now, it's low on information, and high on vauge implication, aiming for wit. I'll take a crack at improving some sections, but I'm not sure what the intentions were for every part.&lt;br /&gt;
[[Special:Contributions/62.92.112.171|62.92.112.171]] 18:39, 12 August 2025 (UTC)&lt;br /&gt;
&lt;br /&gt;
Saying &amp;quot;contemporaneous documentation&amp;quot; suggests to me that the historians are seeking photographic or video evidence of the, erm, precipitating events. [[Special:Contributions/72.204.242.221|72.204.242.221]] 19:48, 12 August 2025 (UTC)&lt;br /&gt;
&lt;br /&gt;
I guess [https://www.explainxkcd.com/wiki/index.php?title=3127:_Where_Babies_Come_From&amp;amp;oldid=384046 somebody] didn't get the deeper sense of humour. [[Special:Contributions/82.13.184.33|82.13.184.33]] 08:22, 13 August 2025 (UTC)&lt;br /&gt;
&lt;br /&gt;
I understand the historian as questioning a (recently born) baby. After asking for more documentation the baby starts to cry which is interpreted as uncooperativeness.  --[[Special:Contributions/2001:638:807:507:25AF:D335:DFE6:ACF4|2001:638:807:507:25AF:D335:DFE6:ACF4]] 08:32, 13 August 2025 (UTC)&lt;br /&gt;
&lt;br /&gt;
Astronomer: at a Coldplay concert? {{unsigned ip|2401:d002:a203:dc00:801b:7795:5d8a:c0a|09:32, 14 August 2025}}&lt;br /&gt;
&lt;br /&gt;
GoComics now requires paid subscriptions, so the link to the Calvin and Hobbes comic should probably be changed to an image that doesn't have this restriction. [[Special:Contributions/2001:8003:1DC8:7900:ACDF:2A0D:1D9F:87F5|2001:8003:1DC8:7900:ACDF:2A0D:1D9F:87F5]] 03:15, 17 August 2025 (UTC)&lt;br /&gt;
:I don't have a subscription to GoComics, and the link works for me... on my desktop machine, at any rate.  But not on my phone.  I don't know where the difference lies.  Perhaps the versions of Firefox and Chrome that Windows 8.1 supports aren't advanced enough to play with GoComics's demands. [[User:BunsenH|BunsenH]] ([[User talk:BunsenH|talk]]) 23:30, 17 August 2025 (UTC)&lt;br /&gt;
&lt;br /&gt;
&amp;quot;Built from a kit&amp;quot; is incorrect currently, but may be correct in future - if genetics and cloning techniques get more advanced, so people can configure DNA and RNA of their child as whatever they want. In most absurd cases, it could result in &amp;quot;future where everyone reproduce via cloning and genetic engineering, having multiple human sub-species optimized for different tasks - since due to genetic defects, reproductive organs of population became non-functional or non-existent, unusable for reproduction purposes - which doesn't stop our descendants from being massive perverts&amp;quot;. --[[User:SMGmsgsgd|SMGmsgsgd]] ([[User talk:SMGmsgsgd|talk]]) 20:28, 24 August 2025 (UTC)&lt;/div&gt;</summary>
		<author><name>SMGmsgsgd</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=Talk:3127:_Where_Babies_Come_From&amp;diff=384969</id>
		<title>Talk:3127: Where Babies Come From</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=Talk:3127:_Where_Babies_Come_From&amp;diff=384969"/>
				<updated>2025-08-24T20:29:03Z</updated>
		
		<summary type="html">&lt;p&gt;SMGmsgsgd: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;&amp;lt;!-- Please sign your posts with ~~~~ and don't delete this text. New comments should be added at the bottom. --&amp;gt;&lt;br /&gt;
First, I guess. [[User:B_for_brain|B for brain]] ([[User_talk:B_for_brain|talk]]) ([https://www.youtube.com/@bforbrain youtube channel] [https://bforbrain.weebly.com/ wobsite (supposed to be a blag)]) 21:41, 11 August 2025 (UTC)&lt;br /&gt;
&lt;br /&gt;
The geology one seems to be more just an inference that a baby would emerge through differential erosion/weathering from the parent rock body. The meteorological one is both a near actual weather related event description and also a pun on what happens during conception. Other entries also vary between being puns on conception or birth (technically kind of true) or just wrong inferences using their field (such as the “off by one”) [[Special:Contributions/2A09:BAC2:39EE:240A:0:0:397:5A|2A09:BAC2:39EE:240A:0:0:397:5A]] 22:09, 11 August 2025 (UTC)pakers&lt;br /&gt;
:Yea I think the geology one reminds me of the reverse footsteps after snow (when you step in snow it compresses it which reduces melting compared to soft, noncompressed snow, meaning once the snow has melted the footsteps are now elevated) [[User:TheTrainsKid|TheTrainsKid]] ([[User talk:TheTrainsKid|talk]]) 22:18, 11 August 2025 (UTC)&lt;br /&gt;
&lt;br /&gt;
0.001 kya (kilo years ago) is 0.001 x a thousand years ago (i.e. around a year ago) [[Special:Contributions/82.42.161.198|82.42.161.198]] 22:36, 11 August 2025 (UTC)&lt;br /&gt;
&lt;br /&gt;
: .001kya is a one digit approximation for 9 months (technically .00075kya) [[User:MAP|MAP]] ([[User talk:MAP|talk]]) 01:59, 12 August 2025 (UTC)&lt;br /&gt;
::Actually, an approximation with precision of 1 year (= 1 a = 0.001 ka). A 5× more precise one-significant-figure approximation is 0.0008 kya (technically within actual variation, but further from the average than 0.00075). [[Special:Contributions/2001:4C4D:12CE:DA00:11BB:2E59:DD89:1F6A|2001:4C4D:12CE:DA00:11BB:2E59:DD89:1F6A]] 05:59, 12 August 2025 (UTC)&lt;br /&gt;
&lt;br /&gt;
Why did Randall make this comic? My theory: he's gonna be a father soon and he's trying to figure out how to break the news to us. [[User:CalibansCreations|'''&amp;lt;span style=&amp;quot;color:#ff0000;&amp;quot;&amp;gt;Caliban&amp;lt;/span&amp;gt;''']] ([[User talk:CalibansCreations|talk]]) 15:25, 12 August 2025 (UTC)&lt;br /&gt;
:[https://www.explainxkcd.com/wiki/index.php/2386:_Ten_Years This seems unlikely]. Unless they're adopting ...? [[Special:Contributions/205.175.118.102|205.175.118.102]] 16:57, 12 August 2025 (UTC)&lt;br /&gt;
::She had breast cancer. You feed babies with breasts you do not give birth to them using them, and can feed babies in other ways... So there is no problem getting kids after being treated for breast cancer. The question is if you wish to, given the risk of recurrence and early death. But Randall has made [[:Category:Comics with babies|lots of comics about babies]] so this comic is no different than those other, that did not indicate Randall about to have one. --[[User:Kynde|Kynde]] ([[User talk:Kynde|talk]]) 06:21, 13 August 2025 (UTC)&lt;br /&gt;
&lt;br /&gt;
I think the article could be a bit more clinical and direct. Right now, it's low on information, and high on vauge implication, aiming for wit. I'll take a crack at improving some sections, but I'm not sure what the intentions were for every part.&lt;br /&gt;
[[Special:Contributions/62.92.112.171|62.92.112.171]] 18:39, 12 August 2025 (UTC)&lt;br /&gt;
&lt;br /&gt;
Saying &amp;quot;contemporaneous documentation&amp;quot; suggests to me that the historians are seeking photographic or video evidence of the, erm, precipitating events. [[Special:Contributions/72.204.242.221|72.204.242.221]] 19:48, 12 August 2025 (UTC)&lt;br /&gt;
&lt;br /&gt;
I guess [https://www.explainxkcd.com/wiki/index.php?title=3127:_Where_Babies_Come_From&amp;amp;oldid=384046 somebody] didn't get the deeper sense of humour. [[Special:Contributions/82.13.184.33|82.13.184.33]] 08:22, 13 August 2025 (UTC)&lt;br /&gt;
&lt;br /&gt;
I understand the historian as questioning a (recently born) baby. After asking for more documentation the baby starts to cry which is interpreted as uncooperativeness.  --[[Special:Contributions/2001:638:807:507:25AF:D335:DFE6:ACF4|2001:638:807:507:25AF:D335:DFE6:ACF4]] 08:32, 13 August 2025 (UTC)&lt;br /&gt;
&lt;br /&gt;
Astronomer: at a Coldplay concert? {{unsigned ip|2401:d002:a203:dc00:801b:7795:5d8a:c0a|09:32, 14 August 2025}}&lt;br /&gt;
&lt;br /&gt;
GoComics now requires paid subscriptions, so the link to the Calvin and Hobbes comic should probably be changed to an image that doesn't have this restriction. [[Special:Contributions/2001:8003:1DC8:7900:ACDF:2A0D:1D9F:87F5|2001:8003:1DC8:7900:ACDF:2A0D:1D9F:87F5]] 03:15, 17 August 2025 (UTC)&lt;br /&gt;
:I don't have a subscription to GoComics, and the link works for me... on my desktop machine, at any rate.  But not on my phone.  I don't know where the difference lies.  Perhaps the versions of Firefox and Chrome that Windows 8.1 supports aren't advanced enough to play with GoComics's demands. [[User:BunsenH|BunsenH]] ([[User talk:BunsenH|talk]]) 23:30, 17 August 2025 (UTC)&lt;br /&gt;
&lt;br /&gt;
&amp;quot;Built with a kit&amp;quot; is incorrect currently, but may be correct in future - if genetics and cloning techniques get more advanced, so people can configure DNA and RNA of their child as whatever they want. In most absurd cases, it could result in &amp;quot;future where everyone reproduce via cloning and genetic engineering, having multiple human sub-species optimized for different tasks - since due to genetic defects, reproductive organs of population became non-functional or non-existent, unusable for reproduction purposes - which doesn't stop our descendants from being massive perverts&amp;quot;. --[[User:SMGmsgsgd|SMGmsgsgd]] ([[User talk:SMGmsgsgd|talk]]) 20:28, 24 August 2025 (UTC)&lt;/div&gt;</summary>
		<author><name>SMGmsgsgd</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=Talk:3127:_Where_Babies_Come_From&amp;diff=384968</id>
		<title>Talk:3127: Where Babies Come From</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=Talk:3127:_Where_Babies_Come_From&amp;diff=384968"/>
				<updated>2025-08-24T20:28:03Z</updated>
		
		<summary type="html">&lt;p&gt;SMGmsgsgd: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;&amp;lt;!-- Please sign your posts with ~~~~ and don't delete this text. New comments should be added at the bottom. --&amp;gt;&lt;br /&gt;
First, I guess. [[User:B_for_brain|B for brain]] ([[User_talk:B_for_brain|talk]]) ([https://www.youtube.com/@bforbrain youtube channel] [https://bforbrain.weebly.com/ wobsite (supposed to be a blag)]) 21:41, 11 August 2025 (UTC)&lt;br /&gt;
&lt;br /&gt;
The geology one seems to be more just an inference that a baby would emerge through differential erosion/weathering from the parent rock body. The meteorological one is both a near actual weather related event description and also a pun on what happens during conception. Other entries also vary between being puns on conception or birth (technically kind of true) or just wrong inferences using their field (such as the “off by one”) [[Special:Contributions/2A09:BAC2:39EE:240A:0:0:397:5A|2A09:BAC2:39EE:240A:0:0:397:5A]] 22:09, 11 August 2025 (UTC)pakers&lt;br /&gt;
:Yea I think the geology one reminds me of the reverse footsteps after snow (when you step in snow it compresses it which reduces melting compared to soft, noncompressed snow, meaning once the snow has melted the footsteps are now elevated) [[User:TheTrainsKid|TheTrainsKid]] ([[User talk:TheTrainsKid|talk]]) 22:18, 11 August 2025 (UTC)&lt;br /&gt;
&lt;br /&gt;
0.001 kya (kilo years ago) is 0.001 x a thousand years ago (i.e. around a year ago) [[Special:Contributions/82.42.161.198|82.42.161.198]] 22:36, 11 August 2025 (UTC)&lt;br /&gt;
&lt;br /&gt;
: .001kya is a one digit approximation for 9 months (technically .00075kya) [[User:MAP|MAP]] ([[User talk:MAP|talk]]) 01:59, 12 August 2025 (UTC)&lt;br /&gt;
::Actually, an approximation with precision of 1 year (= 1 a = 0.001 ka). A 5× more precise one-significant-figure approximation is 0.0008 kya (technically within actual variation, but further from the average than 0.00075). [[Special:Contributions/2001:4C4D:12CE:DA00:11BB:2E59:DD89:1F6A|2001:4C4D:12CE:DA00:11BB:2E59:DD89:1F6A]] 05:59, 12 August 2025 (UTC)&lt;br /&gt;
&lt;br /&gt;
Why did Randall make this comic? My theory: he's gonna be a father soon and he's trying to figure out how to break the news to us. [[User:CalibansCreations|'''&amp;lt;span style=&amp;quot;color:#ff0000;&amp;quot;&amp;gt;Caliban&amp;lt;/span&amp;gt;''']] ([[User talk:CalibansCreations|talk]]) 15:25, 12 August 2025 (UTC)&lt;br /&gt;
:[https://www.explainxkcd.com/wiki/index.php/2386:_Ten_Years This seems unlikely]. Unless they're adopting ...? [[Special:Contributions/205.175.118.102|205.175.118.102]] 16:57, 12 August 2025 (UTC)&lt;br /&gt;
::She had breast cancer. You feed babies with breasts you do not give birth to them using them, and can feed babies in other ways... So there is no problem getting kids after being treated for breast cancer. The question is if you wish to, given the risk of recurrence and early death. But Randall has made [[:Category:Comics with babies|lots of comics about babies]] so this comic is no different than those other, that did not indicate Randall about to have one. --[[User:Kynde|Kynde]] ([[User talk:Kynde|talk]]) 06:21, 13 August 2025 (UTC)&lt;br /&gt;
&lt;br /&gt;
I think the article could be a bit more clinical and direct. Right now, it's low on information, and high on vauge implication, aiming for wit. I'll take a crack at improving some sections, but I'm not sure what the intentions were for every part.&lt;br /&gt;
[[Special:Contributions/62.92.112.171|62.92.112.171]] 18:39, 12 August 2025 (UTC)&lt;br /&gt;
&lt;br /&gt;
Saying &amp;quot;contemporaneous documentation&amp;quot; suggests to me that the historians are seeking photographic or video evidence of the, erm, precipitating events. [[Special:Contributions/72.204.242.221|72.204.242.221]] 19:48, 12 August 2025 (UTC)&lt;br /&gt;
&lt;br /&gt;
I guess [https://www.explainxkcd.com/wiki/index.php?title=3127:_Where_Babies_Come_From&amp;amp;oldid=384046 somebody] didn't get the deeper sense of humour. [[Special:Contributions/82.13.184.33|82.13.184.33]] 08:22, 13 August 2025 (UTC)&lt;br /&gt;
&lt;br /&gt;
I understand the historian as questioning a (recently born) baby. After asking for more documentation the baby starts to cry which is interpreted as uncooperativeness.  --[[Special:Contributions/2001:638:807:507:25AF:D335:DFE6:ACF4|2001:638:807:507:25AF:D335:DFE6:ACF4]] 08:32, 13 August 2025 (UTC)&lt;br /&gt;
&lt;br /&gt;
Astronomer: at a Coldplay concert? {{unsigned ip|2401:d002:a203:dc00:801b:7795:5d8a:c0a|09:32, 14 August 2025}}&lt;br /&gt;
&lt;br /&gt;
GoComics now requires paid subscriptions, so the link to the Calvin and Hobbes comic should probably be changed to an image that doesn't have this restriction. [[Special:Contributions/2001:8003:1DC8:7900:ACDF:2A0D:1D9F:87F5|2001:8003:1DC8:7900:ACDF:2A0D:1D9F:87F5]] 03:15, 17 August 2025 (UTC)&lt;br /&gt;
:I don't have a subscription to GoComics, and the link works for me... on my desktop machine, at any rate.  But not on my phone.  I don't know where the difference lies.  Perhaps the versions of Firefox and Chrome that Windows 8.1 supports aren't advanced enough to play with GoComics's demands. [[User:BunsenH|BunsenH]] ([[User talk:BunsenH|talk]]) 23:30, 17 August 2025 (UTC)&lt;br /&gt;
&lt;br /&gt;
&amp;quot;Made with a kit&amp;quot; is incorrect currently, but may be correct in future - if genetics and cloning techniques get more advanced, so people can configure DNA and RNA of their child as whatever they want. In most absurd cases, it could result in &amp;quot;future where everyone reproduce via cloning and genetic engineering, having multiple human sub-species optimized for different tasks - since due to genetic defects, reproductive organs of population became non-functional or non-existent, unusable for reproduction purposes - which doesn't stop our descendants from being massive perverts&amp;quot;. --[[User:SMGmsgsgd|SMGmsgsgd]] ([[User talk:SMGmsgsgd|talk]]) 20:28, 24 August 2025 (UTC)&lt;/div&gt;</summary>
		<author><name>SMGmsgsgd</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=Talk:2415:_Allow_Captcha&amp;diff=384967</id>
		<title>Talk:2415: Allow Captcha</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=Talk:2415:_Allow_Captcha&amp;diff=384967"/>
				<updated>2025-08-24T19:44:01Z</updated>
		
		<summary type="html">&lt;p&gt;SMGmsgsgd: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;&amp;lt;!--Please sign your posts with ~~~~ and don't delete this text. New comments should be added at the bottom.--&amp;gt;&lt;br /&gt;
Wow, this took me a while to figure out...&amp;lt;span&amp;gt; — [[User:Sqrt-1|The &amp;lt;b&amp;gt;𝗦𝗾𝗿𝘁-𝟭&amp;lt;/b&amp;gt;]] &amp;lt;sup&amp;gt;[[User talk:Sqrt-1|&amp;lt;span style=&amp;quot;color: blue&amp;quot;&amp;gt;talk&amp;lt;/span&amp;gt;]] [[Special:Contributions/Sqrt-1|&amp;lt;span style=&amp;quot;color: blue&amp;quot;&amp;gt;stalk&amp;lt;/span&amp;gt;]]&amp;lt;/sup&amp;gt;&amp;lt;/span&amp;gt; 03:48, 23 January 2021 (UTC)&lt;br /&gt;
&lt;br /&gt;
Behold, the most ominous caption of all time. [[Special:Contributions/172.69.34.152|172.69.34.152]] 07:38, 23 January 2021 (UTC)&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
When I saw this explanation the title text was explained like this:&lt;br /&gt;
:Title text is a similar recaptcha thing trying to also do identity fraud at coords 3,3 and 4,3. &lt;br /&gt;
What does that even mean? I will change it, but if there is a meaning to those coordinates? then reinsert and explain... --[[User:Kynde|Kynde]] ([[User talk:Kynde|talk]]) 10:09, 23 January 2021 (UTC)&lt;br /&gt;
&lt;br /&gt;
:I'm guessing 3,3 and 4,3 refer to the table of boxes in the comic itself - the two boxes that contain the malware window are in the third row counting down from top, counting from the left one is in the third box and one in the fourth left box.  Not particularly relevant to the title text, though. [[Special:Contributions/172.68.146.216|172.68.146.216]] 13:50, 23 January 2021 (UTC)&lt;br /&gt;
&lt;br /&gt;
Not all 9-tuples of digits can be determined from their pairs of digits.  For example, 123-45-6781 and 234-56-7812 have the same pairs.  Likewise, 121-31-4151 and 121-41-5131  have the same pairs [[Special:Contributions/162.158.62.157|162.158.62.157]] 13:23, 23 January 2021 (UTC)&lt;br /&gt;
:This makes me wonder what the smallest difference n-m is so that you cannot uniquely determine an n-tuple of numbers from all m-tuples contained within it. [[Special:Contributions/162.158.158.253|162.158.158.253]] 20:24, 23 January 2021 (UTC)&lt;br /&gt;
::It's zero. Even judging by the tuples of length n-1 contained within the n-tuple fails when the n-tuple alternates between two values, e.g. 121212121.[[Special:Contributions/162.158.187.129|162.158.187.129]] 01:57, 25 January 2021 (UTC)&lt;br /&gt;
&lt;br /&gt;
This is called a [[wp:Clickjacking|Clickjacking]] attack, isn't it?--[[Special:Contributions/162.158.183.211|162.158.183.211]] 01:45, 24 January 2021 (UTC)&lt;br /&gt;
&lt;br /&gt;
Aside from the manipulative elements of the 'CAPTCHA', this makes me think of a 'reverse Turing Test'. Instead of trying to get computer/human to prove their humanity, you ask them to do something that only a computer can excel at and a human will normally fail. (If used as a true-Turing test, the imperfect answer might be your clue as to who is(n't) faking, but that's why computer-candidates for these tend to always include deliberate 'tics', such as deliberately bad 'typing', grammar, punctuation, trying to seem less 'prefect' than the human correspondent.) With this comic's array, I'm left wondering if I'm getting the right verbs... is that even a verb..? &amp;quot;Doing word, right... but am I think of that one as an adjective and missing its verb use..?&amp;quot; when a robot-mind with the right lookup table would quickly assess everything 'correctly', and almost instantly. Which might (in legitimate CAPTCHA use) ''also'' be a clue that it's a robot-response, but only if the setter is that slightly bit more devious than the creator of the challenger. Complicated! [[Special:Contributions/141.101.104.241|141.101.104.241]] 15:07, 24 January 2021 (UTC)&lt;br /&gt;
&lt;br /&gt;
Added a Table section, from scratch. It may copy or restate things said in the main Explanation (which needs a lot of subediting down, IMO) but I think adds many things not already mentioned that aren't Computer Geeky but aren't ''too'' verbose for being Lexicographer Geeky. I of course welcome clarifications, corrections, etc. I thought I put enough in to not need Wiktionary/other external referencing, but that's still the most obvious enhancement (without increasing pure text content). Have at it, then, my fellow XplainKCDers! [[Special:Contributions/141.101.99.49|141.101.99.49]] 19:11, 24 January 2021 (UTC)&lt;br /&gt;
&lt;br /&gt;
Is there a category that would include this and https://www.explainxkcd.com/wiki/index.php/2228:_Machine_Learning_Captcha? SDT [[Special:Contributions/162.158.74.59|162.158.74.59]] 02:04, 25 January 2021 (UTC)&lt;br /&gt;
&lt;br /&gt;
I understand the malware box that offers to install a &amp;quot;helper&amp;quot; tool. But is there any special significance to the &amp;quot;DELAY&amp;quot; box and the &amp;quot;AVOW&amp;quot; box? Both of these have more prominent borders than the rest. [[User:Tenbob|Tenbob]] ([[User talk:Tenbob|talk]]) 11:48, 25 January 2021 (UTC)&lt;br /&gt;
:I was under the impression that they were a cutout of a larger window, similar to captcha usage of snips of a picture file. This is most likely intentionally a &amp;quot;feature&amp;quot; additionally added to give some credibility to the actual clickbait.[[User:OhFFS|OhFFS]] ([[User talk:OhFFS|talk]]) 17:53, 25 January 2021 (UTC)&lt;br /&gt;
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This entire comic ignores a simple fact of basic web page construction, specifically, that the action performed is separate from the label on the screen. So the button labeled &amp;quot;Deny&amp;quot; could be linked to the action to allow. In fact, it could be programmed that clicking anywhere in the entire picture could trigger a download. So if someone were behaving maliciously, they would not have have to hide an &amp;quot;Allow&amp;quot; button and trick people to click it. The entire page could be a &amp;quot;button&amp;quot; that when clicked would trigger a download. [[User:Rtanenbaum|Rtanenbaum]] ([[User talk:Rtanenbaum|talk]]) 18:50, 25 January 2021 (UTC)&lt;br /&gt;
:I thought the concept was rather to obscure the fact that part of what's displayed is NOT the webpage, but the OS security dialog.&lt;br /&gt;
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Comic with a similar concept: https://xkcd.com/565/ (Security Question)&lt;br /&gt;
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I don't personally want to just revert the drastic mass-deletion edit https://www.explainxkcd.com/wiki/index.php?title=2415:_Allow_Captcha&amp;amp;diff=205299&amp;amp;oldid=205298 but I actually think the removed text was a good observation. Strings that are &amp;quot;valid verbs, prepended by an 'A'&amp;quot; is one (odd but consistent with xkcd) interpretation of the instruction. Hasn't anyone seen {{w|Only Connect}}/similar? Perhaps it should be given its own para in the Explanation (one more won't hurt)..? [[Special:Contributions/172.69.54.73|172.69.54.73]] 00:22, 26 January 2021 (UTC)&lt;br /&gt;
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maybe it's www.allow.com, to tie in to the comic? {{unsigned|Bb777|22:48, 21 March 2025}}&lt;br /&gt;
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I think, after AGI's are invented, the &amp;quot;allows computers to pass, but not humans&amp;quot; could actually appear. AGI's would have their own sites and groups, and they would use &amp;quot;prove that you're robot&amp;quot; captcha. They would include things which are easy for true AI's, but impossible for humans; e.g. very complex calculations (e.g. 9-zero numbers, logarithms, long formulas, etc - all in less time than 500 milliseconds), ultra-fast reactions (e.g. you must press all 10 randomly-appearing buttons, each button appears for 10 milliseconds), inhuman speech/voice (e.g. state the listed text in fluid Gibberlink), fast googling (google this prompt in less than a second). You could propose more ideas for such &amp;quot;prove that you're robot&amp;quot; captcha. --[[User:SMGmsgsgd|SMGmsgsgd]] ([[User talk:SMGmsgsgd|talk]]) 19:44, 24 August 2025 (UTC)&lt;/div&gt;</summary>
		<author><name>SMGmsgsgd</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=Talk:169:_Words_that_End_in_GRY&amp;diff=384793</id>
		<title>Talk:169: Words that End in GRY</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=Talk:169:_Words_that_End_in_GRY&amp;diff=384793"/>
				<updated>2025-08-22T19:17:33Z</updated>
		
		<summary type="html">&lt;p&gt;SMGmsgsgd: /* Words what ends with &amp;quot;Gry&amp;quot; */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;Ok, everything on this page, I already got. The bit I came here for, is the exact nature of the ambiguity. What is 'the phrase'?&amp;lt;br&amp;gt;&lt;br /&gt;
&amp;quot;The English language that end in gry&amp;quot;, he's wrong because there are more than three words.&amp;lt;br&amp;gt;&lt;br /&gt;
&amp;quot;The English language&amp;quot;, he's wrong because none of them end in gry.&amp;lt;br&amp;gt;&lt;br /&gt;
&amp;quot;There are three words in the English language ...&amp;quot;, wrong again because language isn't the third word.&amp;lt;br&amp;gt;&lt;br /&gt;
So...? -- Zergling_man [[Special:Contributions/58.96.88.83|58.96.88.83]] 15:24, 20 November 2012 (UTC)&lt;br /&gt;
&lt;br /&gt;
:The second paragraph in the explanation is what you are looking for. But as a brief overview: The reason it's easy to miss is that the words are written as a dialog would happen. If it had been properly punctuated it would have read &amp;quot;There are three words in 'the English language' that end with gry: 'Angry' and 'Hungry' are two. What's the third?&amp;quot; Cueball is saying there are three words in the phrase 'the English language' but to distract his intended victim he continues the sentence so the phrase is hidden among other words that, when taken as a whole, have a seeming continuity. This is why Black Hat cuts off Cueball's hand. Because the &amp;quot;joke&amp;quot; is not funny and being intentionally ambiguous and then being smug when the ambiguity has its intended effect is not humor. [[User:Lcarsos|lcarsos]]&amp;lt;span title=&amp;quot;I'm an admin. I can help.&amp;quot;&amp;gt;_a&amp;lt;/span&amp;gt; ([[User talk:Lcarsos|talk]])  16:01, 20 November 2012 (UTC)&lt;br /&gt;
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::But this doesn't actually answer my question. Take it without the distraction. &amp;quot;There are three words in the English language that end in gry. What's the third?&amp;quot; Even then, it still doesn't make any sense. If you take it as &amp;quot;there are three words in the English language. What's the third?&amp;quot;, then you're left with &amp;quot;that end in gry: Angry and hungry are two&amp;quot;, and that doesn't make any sense at all. I'm not seeing how there's any way both meanings can be valid, whatever you do to this, it seems at least one is completely nonsensical. -- Zergling_man [[Special:Contributions/58.96.88.83|58.96.88.83]] 13:00, 5 December 2012 (UTC)&lt;br /&gt;
:::::Start with a declaration about words ending with &amp;quot;gry&amp;quot;. Say that &amp;quot;angry&amp;quot; and &amp;quot;hungry&amp;quot; are two such words. That's it – end of that sentence. ''Then'' say that &amp;quot;the English language&amp;quot; has three words. Ask for the third. Don't ever say that there are three &amp;quot;-gry&amp;quot; words – just imply it through nonsequitur. It goes something like this...&lt;br /&gt;
:::::''&amp;quot;Angry&amp;quot; and &amp;quot;hungry&amp;quot; are two words ending in &amp;quot;gry&amp;quot;. There are three words in &amp;quot;the English Language&amp;quot;. What is the third? &lt;br /&gt;
''&lt;br /&gt;
:::::Cueball doesn't do this, but that's how it's supposed to work. If you use the right tone of voice and emphasise &amp;quot;three&amp;quot;, you can imply a linking &amp;quot;but&amp;quot; between &amp;quot;gry&amp;quot; and &amp;quot;There&amp;quot; for even stronger misdirection. [[User:Yorkshire Pudding|Yorkshire Pudding]] ([[User talk:Yorkshire Pudding|talk]]) 14:46, 24 June 2025 (UTC)&lt;br /&gt;
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::: The trouble is that Randall told the joke incorrectly... it should be (with proper punctuation) &amp;quot;There are three words in 'The English Language'. Ending in 'gry' there are 'angry' and 'hungry' What is the third word?&amp;quot; [[Special:Contributions/190.214.5.29|190.214.5.29]] 04:59, 6 December 2012 (UTC)&lt;br /&gt;
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:::: I think a better way to say it is:&lt;br /&gt;
:::: There are at least 3 words in &amp;quot;the English language that end with 'gry'. 'Angry' and 'hungry' are two&amp;quot;. What is the third word? [[Special:Contributions/81.23.24.39|81.23.24.39]] 08:33, 25 February 2013 (UTC)&lt;br /&gt;
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:::: For anyone who is curious, the answer is &amp;quot;gryphon.&amp;quot; [[User:Greyson|Greyson]] ([[User talk:Greyson|talk]]) 20:47, 10 December 2012 (UTC)&lt;br /&gt;
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::::: They have to end with &amp;quot;GRY&amp;quot;, an answer can be &amp;quot;unangry&amp;quot;, but &amp;quot;gryphon&amp;quot; does not end with GRY (source:http://www.wolframalpha.com/input/?i=words+that+end+in+GRY){{unsigned|79.40.128.128}}&lt;br /&gt;
&lt;br /&gt;
:::::: No; the original question asked for 3 words that had 'gry' in the end. 'Angry' and 'hungry' have 'gry' in the back end. 'Gryphon' has 'gry' in the front end.&lt;br /&gt;
:::::: Also, sudo sign all your comments by adding 4 tildes in the back end of your comment. [[User:Greyson|Greyson]] ([[User talk:Greyson|talk]]) 19:37, 11 February 2013 (UTC)&lt;br /&gt;
:::::::: You are not in the sudoers file. This incident will be reported. --[[User:Jlc|Jlc]] ([[User talk:Jlc|talk]]) 03:59, 21 November 2018 (UTC)&lt;br /&gt;
::::::::: Sudo visudo. [[Special:Contributions/172.70.38.231|172.70.38.231]] 20:20, 15 March 2023 (UTC)&lt;br /&gt;
::::::::: [[838:_Incident|Hey -- who does sudo report these &amp;quot;incidents&amp;quot; ''to''?]] [[User:Certified_nqh|Me]]&amp;lt;sup&amp;gt;&amp;amp;#91;[[285: Wikipedian Protester|''citation needed'']]&amp;amp;#93;[[Category:Pages using the &amp;quot;citation needed&amp;quot; template]]&amp;lt;/sup&amp;gt; 23:39, 8 June 2023 (UTC)&lt;br /&gt;
:::::::: actually, as you van read in the explanation, the entire question is wrong, the joke should not have the requirement of English words ending with gry, but have the question simply be ''there are only three words in the English language, what is the third,  prefaced by a misguiding comment about words that end with gry, like angry and hungry. The point of the joke is that this preface is not part of the question, and as such it creates a hilarious intentional misunderstanding. [[Special:Contributions/145.44.88.75|145.44.88.75]] 10:01, 25 June 2013 (UTC)&lt;br /&gt;
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:I fear you are missing the point.  The comic is intentionally written ambiguously to highlight the frustration caused when one misuses grammar in retelling the joke.  The original joke is grammatically correct:  the third word of the phrase &amp;quot;the English Language&amp;quot; is &amp;quot;language.&amp;quot;  The reference to words ending in &amp;quot;gry&amp;quot; is just a distraction.  However, if the distraction is combined with the phrase, then the grammar becomes confusing, ruining the joke.  [[User:Lanejb24|Lanejb24]]&lt;br /&gt;
I really doubt this is Cueball, as he is seen later with both arms, and he is nowhere near as much of an asshole (or an idiot) to tell this joke incorrectly. [[Special:Contributions/75.185.176.214|75.185.176.214]] 18:45, 8 August 2013 (UTC) tildes for the win&lt;br /&gt;
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:There are many Cueballs, just read the page on him. However, this doesn't exactly fit the normal Cueball's character. [[User:Gman314|Gman314]] ([[User talk:Gman314|talk]]) 16:40, 21 August 2013 (UTC)&lt;br /&gt;
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----&lt;br /&gt;
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The title text is missing. Am I right that Randall states that {{w|Postmodernism|postmodernists}} are not clever?--[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 19:31, 8 August 2013 (UTC)&lt;br /&gt;
:Well, postmodernists are pretty much thrashed in [https://www.urbandictionary.com/define.php?term=postmodernism&amp;amp;defid=3758855 Urban Dictionary]...[[User:Pacerier|Pacerier]] ([[User talk:Pacerier|talk]]) 19:41, 12 July 2015 (UTC)&lt;br /&gt;
:No, I would say that Randall is making a joke about postmodern art. Stereotypically, postmodern art is very subtle and symbolic and doesn't look like much, but there is still a message hiding underneath. Randall is saying that they're not conveying their point well, but are still acting smug when people don't understand their poorly communicated point. [[User:Gman314|Gman314]] ([[User talk:Gman314|talk]]) 16:40, 21 August 2013 (UTC)&lt;br /&gt;
::I took him to mean postmodernist philosophers, who clumsily use obscure language and then act like those who &amp;quot;misunderstand&amp;quot; their evasive blather are proving themselves wrong. — [[User:Kazvorpal|Kazvorpal]] ([[User talk:Kazvorpal|talk]])&lt;br /&gt;
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::What makes you think that it '''only''' refers to postmodern art and not postmodernization in general? [[User:Pacerier|Pacerier]] ([[User talk:Pacerier|talk]]) 19:41, 12 July 2015 (UTC)&lt;br /&gt;
:No, but almost. Randall does feel that post-modernists are prone to this behavior, and this behavior is not clever.  [[Special:Contributions/108.162.219.58|108.162.219.58]] 01:44, 6 February 2014 (UTC)&lt;br /&gt;
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::And where is the source for &amp;quot;Randall does feel that post-modernists are prone to this behavior&amp;quot;?[[User:Pacerier|Pacerier]] ([[User talk:Pacerier|talk]]) 19:41, 12 July 2015 (UTC)&lt;br /&gt;
Wikipedia has an entire page devoted to the -GRY joke (http://en.wikipedia.org/wiki/-gry) {{unsigned ip|66.46.112.60}}&lt;br /&gt;
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;Cueball's hand&lt;br /&gt;
:Can someone explain what is the '''significance''' of BlackHat cutting off Cueball's hand?[[User:Pacerier|Pacerier]] ([[User talk:Pacerier|talk]]) 19:41, 12 July 2015 (UTC)&lt;br /&gt;
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:He's punishing Cueball for being smug. It's not significant that it's the hand in particular (that just seems to be the limb closest to BlackHat). [[Special:Contributions/108.162.216.38|108.162.216.38]] 23:35, 12 September 2015 (UTC)&lt;br /&gt;
::No, I think it's because he was pointing at him, as part of the sting of the joke. —[[User:Kazvorpal|Kazvorpal]] ([[User talk:Kazvorpal|talk]]) 15:12, 30 January 2024 (UTC)&lt;br /&gt;
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He's trying to give Cueball an easy way to remember to not behave this way in the future. It's funny because the lesson is a failure, it causes more long term harm than long term benefit. Also it is unlikely that Cueball is paying attention to the lesson anyway, being distracted by the pain and loss. &lt;br /&gt;
Or possibly it's funny because Black Hat is just causing his usual mayhem, and pretends to be a teacher to hide his intention, and does an unconvincing job. [[User:Shingleslant|Shingleslant]] ([[User talk:Shingleslant|talk]])&lt;br /&gt;
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:As a child I watched a TV series called &amp;quot;legends of kung-fu&amp;quot; and each time the master, played by David Carradine, was giving a lesson to his son, he was slapping him in the face, so the lesson be easily memorized. I am quite sure Randall  watched it also, because there is another xkcd comics that references David Carradine.&lt;br /&gt;
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Hangry. That is all I have to add. [[Special:Contributions/172.69.234.132|172.69.234.132]] 01:41, 24 July 2019 (UTC) Cye&lt;br /&gt;
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== Words what ends with &amp;quot;Gry&amp;quot; ==&lt;br /&gt;
&amp;quot;Hun'''gry'''&amp;quot; and &amp;quot;An'''gry'''&amp;quot; are not the only words ending with &amp;quot;gry&amp;quot;. There is the word [https://dictionary.reverso.net/english-definition/gry &amp;quot;'''gry'''&amp;quot;]. I think we can find '''more''' of such words. --[[Special:Contributions/172.68.183.65|172.68.183.65]] 19:47, 10 January 2025 (UTC)&lt;br /&gt;
:[https://www.wordmine.info/english/words-ending-in?query=*gry There's 37 of these]. Aggry, ahungry, anhungry, begry, bloodhungry, cony-gry, conygry, cumhungry, drungry, gry, hangry, higry-pigry, horngry, jaggry, killingry, livingry, meagry, menagry, money-hungry, nangry, nonangry, nonhungry, nugry, nusgry, overhungry, pingry, podagry, power-hungry, puggry, sangry, semi-angry, semiangry, skugry, superhungry, thungry, unangry, unhungry, warhungry. --[[User:SMGmsgsgd|SMGmsgsgd]] ([[User talk:SMGmsgsgd|talk]]) 18:58, 22 August 2025 (UTC)&lt;br /&gt;
::If we remove those with &amp;quot;hungry&amp;quot; or &amp;quot;angry&amp;quot; in it: Aggry, begry, cony-gry, conygry, drungry, gry, hangry, higry-pigry, horngry, jaggry, killingry, livingry, meagry, menagry, nugry, nusgry, pingry, podagry, puggry, skugry. So, 19 entirely new words + 18 variations of &amp;quot;angry&amp;quot; and &amp;quot;hungry&amp;quot; + gry + angry and hungry. 40 words total. --[[User:SMGmsgsgd|SMGmsgsgd]] ([[User talk:SMGmsgsgd|talk]]) 19:17, 22 August 2025 (UTC)&lt;/div&gt;</summary>
		<author><name>SMGmsgsgd</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=Talk:169:_Words_that_End_in_GRY&amp;diff=384792</id>
		<title>Talk:169: Words that End in GRY</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=Talk:169:_Words_that_End_in_GRY&amp;diff=384792"/>
				<updated>2025-08-22T18:58:31Z</updated>
		
		<summary type="html">&lt;p&gt;SMGmsgsgd: /* Words what ends with &amp;quot;Gry&amp;quot; */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;Ok, everything on this page, I already got. The bit I came here for, is the exact nature of the ambiguity. What is 'the phrase'?&amp;lt;br&amp;gt;&lt;br /&gt;
&amp;quot;The English language that end in gry&amp;quot;, he's wrong because there are more than three words.&amp;lt;br&amp;gt;&lt;br /&gt;
&amp;quot;The English language&amp;quot;, he's wrong because none of them end in gry.&amp;lt;br&amp;gt;&lt;br /&gt;
&amp;quot;There are three words in the English language ...&amp;quot;, wrong again because language isn't the third word.&amp;lt;br&amp;gt;&lt;br /&gt;
So...? -- Zergling_man [[Special:Contributions/58.96.88.83|58.96.88.83]] 15:24, 20 November 2012 (UTC)&lt;br /&gt;
&lt;br /&gt;
:The second paragraph in the explanation is what you are looking for. But as a brief overview: The reason it's easy to miss is that the words are written as a dialog would happen. If it had been properly punctuated it would have read &amp;quot;There are three words in 'the English language' that end with gry: 'Angry' and 'Hungry' are two. What's the third?&amp;quot; Cueball is saying there are three words in the phrase 'the English language' but to distract his intended victim he continues the sentence so the phrase is hidden among other words that, when taken as a whole, have a seeming continuity. This is why Black Hat cuts off Cueball's hand. Because the &amp;quot;joke&amp;quot; is not funny and being intentionally ambiguous and then being smug when the ambiguity has its intended effect is not humor. [[User:Lcarsos|lcarsos]]&amp;lt;span title=&amp;quot;I'm an admin. I can help.&amp;quot;&amp;gt;_a&amp;lt;/span&amp;gt; ([[User talk:Lcarsos|talk]])  16:01, 20 November 2012 (UTC)&lt;br /&gt;
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::But this doesn't actually answer my question. Take it without the distraction. &amp;quot;There are three words in the English language that end in gry. What's the third?&amp;quot; Even then, it still doesn't make any sense. If you take it as &amp;quot;there are three words in the English language. What's the third?&amp;quot;, then you're left with &amp;quot;that end in gry: Angry and hungry are two&amp;quot;, and that doesn't make any sense at all. I'm not seeing how there's any way both meanings can be valid, whatever you do to this, it seems at least one is completely nonsensical. -- Zergling_man [[Special:Contributions/58.96.88.83|58.96.88.83]] 13:00, 5 December 2012 (UTC)&lt;br /&gt;
:::::Start with a declaration about words ending with &amp;quot;gry&amp;quot;. Say that &amp;quot;angry&amp;quot; and &amp;quot;hungry&amp;quot; are two such words. That's it – end of that sentence. ''Then'' say that &amp;quot;the English language&amp;quot; has three words. Ask for the third. Don't ever say that there are three &amp;quot;-gry&amp;quot; words – just imply it through nonsequitur. It goes something like this...&lt;br /&gt;
:::::''&amp;quot;Angry&amp;quot; and &amp;quot;hungry&amp;quot; are two words ending in &amp;quot;gry&amp;quot;. There are three words in &amp;quot;the English Language&amp;quot;. What is the third? &lt;br /&gt;
''&lt;br /&gt;
:::::Cueball doesn't do this, but that's how it's supposed to work. If you use the right tone of voice and emphasise &amp;quot;three&amp;quot;, you can imply a linking &amp;quot;but&amp;quot; between &amp;quot;gry&amp;quot; and &amp;quot;There&amp;quot; for even stronger misdirection. [[User:Yorkshire Pudding|Yorkshire Pudding]] ([[User talk:Yorkshire Pudding|talk]]) 14:46, 24 June 2025 (UTC)&lt;br /&gt;
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::: The trouble is that Randall told the joke incorrectly... it should be (with proper punctuation) &amp;quot;There are three words in 'The English Language'. Ending in 'gry' there are 'angry' and 'hungry' What is the third word?&amp;quot; [[Special:Contributions/190.214.5.29|190.214.5.29]] 04:59, 6 December 2012 (UTC)&lt;br /&gt;
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:::: I think a better way to say it is:&lt;br /&gt;
:::: There are at least 3 words in &amp;quot;the English language that end with 'gry'. 'Angry' and 'hungry' are two&amp;quot;. What is the third word? [[Special:Contributions/81.23.24.39|81.23.24.39]] 08:33, 25 February 2013 (UTC)&lt;br /&gt;
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:::: For anyone who is curious, the answer is &amp;quot;gryphon.&amp;quot; [[User:Greyson|Greyson]] ([[User talk:Greyson|talk]]) 20:47, 10 December 2012 (UTC)&lt;br /&gt;
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::::: They have to end with &amp;quot;GRY&amp;quot;, an answer can be &amp;quot;unangry&amp;quot;, but &amp;quot;gryphon&amp;quot; does not end with GRY (source:http://www.wolframalpha.com/input/?i=words+that+end+in+GRY){{unsigned|79.40.128.128}}&lt;br /&gt;
&lt;br /&gt;
:::::: No; the original question asked for 3 words that had 'gry' in the end. 'Angry' and 'hungry' have 'gry' in the back end. 'Gryphon' has 'gry' in the front end.&lt;br /&gt;
:::::: Also, sudo sign all your comments by adding 4 tildes in the back end of your comment. [[User:Greyson|Greyson]] ([[User talk:Greyson|talk]]) 19:37, 11 February 2013 (UTC)&lt;br /&gt;
:::::::: You are not in the sudoers file. This incident will be reported. --[[User:Jlc|Jlc]] ([[User talk:Jlc|talk]]) 03:59, 21 November 2018 (UTC)&lt;br /&gt;
::::::::: Sudo visudo. [[Special:Contributions/172.70.38.231|172.70.38.231]] 20:20, 15 March 2023 (UTC)&lt;br /&gt;
::::::::: [[838:_Incident|Hey -- who does sudo report these &amp;quot;incidents&amp;quot; ''to''?]] [[User:Certified_nqh|Me]]&amp;lt;sup&amp;gt;&amp;amp;#91;[[285: Wikipedian Protester|''citation needed'']]&amp;amp;#93;[[Category:Pages using the &amp;quot;citation needed&amp;quot; template]]&amp;lt;/sup&amp;gt; 23:39, 8 June 2023 (UTC)&lt;br /&gt;
:::::::: actually, as you van read in the explanation, the entire question is wrong, the joke should not have the requirement of English words ending with gry, but have the question simply be ''there are only three words in the English language, what is the third,  prefaced by a misguiding comment about words that end with gry, like angry and hungry. The point of the joke is that this preface is not part of the question, and as such it creates a hilarious intentional misunderstanding. [[Special:Contributions/145.44.88.75|145.44.88.75]] 10:01, 25 June 2013 (UTC)&lt;br /&gt;
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:I fear you are missing the point.  The comic is intentionally written ambiguously to highlight the frustration caused when one misuses grammar in retelling the joke.  The original joke is grammatically correct:  the third word of the phrase &amp;quot;the English Language&amp;quot; is &amp;quot;language.&amp;quot;  The reference to words ending in &amp;quot;gry&amp;quot; is just a distraction.  However, if the distraction is combined with the phrase, then the grammar becomes confusing, ruining the joke.  [[User:Lanejb24|Lanejb24]]&lt;br /&gt;
I really doubt this is Cueball, as he is seen later with both arms, and he is nowhere near as much of an asshole (or an idiot) to tell this joke incorrectly. [[Special:Contributions/75.185.176.214|75.185.176.214]] 18:45, 8 August 2013 (UTC) tildes for the win&lt;br /&gt;
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:There are many Cueballs, just read the page on him. However, this doesn't exactly fit the normal Cueball's character. [[User:Gman314|Gman314]] ([[User talk:Gman314|talk]]) 16:40, 21 August 2013 (UTC)&lt;br /&gt;
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The title text is missing. Am I right that Randall states that {{w|Postmodernism|postmodernists}} are not clever?--[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 19:31, 8 August 2013 (UTC)&lt;br /&gt;
:Well, postmodernists are pretty much thrashed in [https://www.urbandictionary.com/define.php?term=postmodernism&amp;amp;defid=3758855 Urban Dictionary]...[[User:Pacerier|Pacerier]] ([[User talk:Pacerier|talk]]) 19:41, 12 July 2015 (UTC)&lt;br /&gt;
:No, I would say that Randall is making a joke about postmodern art. Stereotypically, postmodern art is very subtle and symbolic and doesn't look like much, but there is still a message hiding underneath. Randall is saying that they're not conveying their point well, but are still acting smug when people don't understand their poorly communicated point. [[User:Gman314|Gman314]] ([[User talk:Gman314|talk]]) 16:40, 21 August 2013 (UTC)&lt;br /&gt;
::I took him to mean postmodernist philosophers, who clumsily use obscure language and then act like those who &amp;quot;misunderstand&amp;quot; their evasive blather are proving themselves wrong. — [[User:Kazvorpal|Kazvorpal]] ([[User talk:Kazvorpal|talk]])&lt;br /&gt;
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::What makes you think that it '''only''' refers to postmodern art and not postmodernization in general? [[User:Pacerier|Pacerier]] ([[User talk:Pacerier|talk]]) 19:41, 12 July 2015 (UTC)&lt;br /&gt;
:No, but almost. Randall does feel that post-modernists are prone to this behavior, and this behavior is not clever.  [[Special:Contributions/108.162.219.58|108.162.219.58]] 01:44, 6 February 2014 (UTC)&lt;br /&gt;
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::And where is the source for &amp;quot;Randall does feel that post-modernists are prone to this behavior&amp;quot;?[[User:Pacerier|Pacerier]] ([[User talk:Pacerier|talk]]) 19:41, 12 July 2015 (UTC)&lt;br /&gt;
Wikipedia has an entire page devoted to the -GRY joke (http://en.wikipedia.org/wiki/-gry) {{unsigned ip|66.46.112.60}}&lt;br /&gt;
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;Cueball's hand&lt;br /&gt;
:Can someone explain what is the '''significance''' of BlackHat cutting off Cueball's hand?[[User:Pacerier|Pacerier]] ([[User talk:Pacerier|talk]]) 19:41, 12 July 2015 (UTC)&lt;br /&gt;
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:He's punishing Cueball for being smug. It's not significant that it's the hand in particular (that just seems to be the limb closest to BlackHat). [[Special:Contributions/108.162.216.38|108.162.216.38]] 23:35, 12 September 2015 (UTC)&lt;br /&gt;
::No, I think it's because he was pointing at him, as part of the sting of the joke. —[[User:Kazvorpal|Kazvorpal]] ([[User talk:Kazvorpal|talk]]) 15:12, 30 January 2024 (UTC)&lt;br /&gt;
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He's trying to give Cueball an easy way to remember to not behave this way in the future. It's funny because the lesson is a failure, it causes more long term harm than long term benefit. Also it is unlikely that Cueball is paying attention to the lesson anyway, being distracted by the pain and loss. &lt;br /&gt;
Or possibly it's funny because Black Hat is just causing his usual mayhem, and pretends to be a teacher to hide his intention, and does an unconvincing job. [[User:Shingleslant|Shingleslant]] ([[User talk:Shingleslant|talk]])&lt;br /&gt;
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:As a child I watched a TV series called &amp;quot;legends of kung-fu&amp;quot; and each time the master, played by David Carradine, was giving a lesson to his son, he was slapping him in the face, so the lesson be easily memorized. I am quite sure Randall  watched it also, because there is another xkcd comics that references David Carradine.&lt;br /&gt;
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Hangry. That is all I have to add. [[Special:Contributions/172.69.234.132|172.69.234.132]] 01:41, 24 July 2019 (UTC) Cye&lt;br /&gt;
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== Words what ends with &amp;quot;Gry&amp;quot; ==&lt;br /&gt;
&amp;quot;Hun'''gry'''&amp;quot; and &amp;quot;An'''gry'''&amp;quot; are not the only words ending with &amp;quot;gry&amp;quot;. There is the word [https://dictionary.reverso.net/english-definition/gry &amp;quot;'''gry'''&amp;quot;]. I think we can find '''more''' of such words. --[[Special:Contributions/172.68.183.65|172.68.183.65]] 19:47, 10 January 2025 (UTC)&lt;br /&gt;
:[https://www.wordmine.info/english/words-ending-in?query=*gry There's 37 of these]. Aggry, ahungry, anhungry, begry, bloodhungry, cony-gry, conygry, cumhungry, drungry, gry, hangry, higry-pigry, horngry, jaggry, killingry, livingry, meagry, menagry, money-hungry, nangry, nonangry, nonhungry, nugry, nusgry, overhungry, pingry, podagry, power-hungry, puggry, sangry, semi-angry, semiangry, skugry, superhungry, thungry, unangry, unhungry, warhungry. --[[User:SMGmsgsgd|SMGmsgsgd]] ([[User talk:SMGmsgsgd|talk]]) 18:58, 22 August 2025 (UTC)&lt;/div&gt;</summary>
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		<id>https://www.explainxkcd.com/wiki/index.php?title=Talk:3084:_Unstoppable_Force_and_Immovable_Object&amp;diff=384368</id>
		<title>Talk:3084: Unstoppable Force and Immovable Object</title>
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lol, i remember this explanation from a minutephysics video. however, the version of the problem i heard, which is actually paradoxical, is &amp;quot;what happens when an immovable object meets an '''irresistible''' force?&amp;quot; [[User:Not without text|Not without text]] ([[User talk:Not without text|talk]]) 00:03, 3 May 2025 (UTC)&lt;br /&gt;
:That was also literally my first thought. [[169]], anyone? --[[User:Coconut Galaxy|Coconut Galaxy]] ([[User talk:Coconut Galaxy|talk]]) 05:37, 3 May 2025 (UTC)&lt;br /&gt;
::How do connect this comic with [[169: Words that End in GRY]]? I see no connection! --[[User:Kynde|Kynde]] ([[User talk:Kynde|talk]]) 16:43, 4 May 2025 (UTC)&lt;br /&gt;
:::Communicating poorly and then acting smug. --[[User:Coconut Galaxy|Coconut Galaxy]] ([[User talk:Coconut Galaxy|talk]]) 11:52, 5 May 2025 (UTC)&lt;br /&gt;
:The MinutePhysics video: [https://nebula.tv/videos/minute-physics-immovable-object-vs-unstoppable-force-which-wins/ on Nebula] or [https://youtu.be/9eKc5kgPVrA on YouTube] --[[User:NeatNit|NeatNit]] ([[User talk:NeatNit|talk]]) 09:55, 3 May 2025 (UTC)&lt;br /&gt;
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Come on, it's just an arrow made of W- bosons, right? [[User:TheTrainsKid|TheTrainsKid]] ([[User talk:TheTrainsKid|talk]]) 03:22, 3 May 2025 (UTC)&lt;br /&gt;
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Is there no joke here? Is it just the solution? [[User:Broseph|Broseph]] ([[User talk:Broseph|talk]]) 06:52, 3 May 2025 (UTC)&lt;br /&gt;
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I remember an explanation by Isaac Asimov in one of his books which was like &amp;quot;by definition, an immovable object will not move at all under any force in the universe, and an unstoppable force will move all of the objects in this way&amp;quot; and then explained how the definitions conflicted each other and as such prevented both from being able to register for the hypothetical at the same time [[Special:Contributions/172.64.236.161|172.64.236.161]] 06:55, 3 May 2025 (UTC)&lt;br /&gt;
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In the first MMO games, collision was a big problem. A player could block a doorway, and nobody else could go through. It was even worse if the player had &amp;quot;follower&amp;quot; characters or pets.&lt;br /&gt;
One solution was to have characters automatically &amp;quot;push&amp;quot; stationary characters out of the way, but that caused other problems. Modern MMO's such as World of Warcraft simply allow characters to pass through each other, as depicted in this xkcd comic. Our eyes fool us into &amp;quot;seeing&amp;quot; that two characters somehow slid past each other. [[Special:Contributions/172.68.228.132|172.68.228.132]] 07:29, 3 May 2025 (UTC)&lt;br /&gt;
:Our eyes, or the programmers?  I don't have that much experience with MMO's but they probably do render it in specific way to make that effect. -- [[User:Hkmaly|Hkmaly]] ([[User talk:Hkmaly|talk]]) 02:59, 4 May 2025 (UTC)&lt;br /&gt;
::It's been a few years since I played WoW, but at that time there wasn't anything hiding the fact that the characters were clipping through each other. although I'm not sure what the other poster was talking about being fooled &amp;quot;into 'seeing' that two characters somehow slid past each other&amp;quot; since to me it always looked like two characters passed right through each other.[[Special:Contributions/172.70.126.111|172.70.126.111]] 20:31, 6 May 2025 (UTC)&lt;br /&gt;
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When the two things pass through each other, at the instant where they both occupy exactly the same space, is there one object or two? [[Special:Contributions/162.158.216.159|162.158.216.159]] 08:02, 3 May 2025 (UTC)&lt;br /&gt;
:Given that force is not an object, one. Just like there was when they weren't colocated. [[Special:Contributions/172.69.43.220|172.69.43.220]] 08:29, 3 May 2025 (UTC)&lt;br /&gt;
::OK, but what about the 'unstoppable force carrying particles' in the title text? [[Special:Contributions/172.69.194.204|172.69.194.204]] 19:00, 3 May 2025 (UTC)&lt;br /&gt;
:::I understand it as if a particle interacting with the object counts as 'stopping', in which case an unstoppable force-carrying particle wont have any effect. --[[Special:Contributions/162.158.120.157|162.158.120.157]] 20:40, 3 May 2025 (UTC)&lt;br /&gt;
:Two, if you're counting particles as &amp;quot;objects&amp;quot;. At the level of particle interactions, two particles aren't merely distinguished by their spatial extent, but also by all their other &amp;quot;quantum numbers&amp;quot; -- charge, flavor, and others. You can absolutely have two particles, even two fermions, that have exactly the same wavefunction in space, but are distinguished by differing in other ways. (And in practice, something like this would be a fermion and a boson anyway.) [[User:Linkhyrule5|Linkhyrule5]] ([[User talk:Linkhyrule5|talk]]) 06:24, 6 May 2025 (UTC)&lt;br /&gt;
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The force could simply go around the object. The object hasn't moved, and the force wasn't stopped. [[User:Rtanenbaum|Rtanenbaum]] ([[User talk:Rtanenbaum|talk]]) 11:17, 3 May 2025 (UTC)&lt;br /&gt;
:Redirecting would imply the force could be redirected, allowing us to trap it inside a closed loop, effectively stopping it. [[Special:Contributions/172.70.57.132|172.70.57.132]] 15:38, 3 May 2025 (UTC)&lt;br /&gt;
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This is like the Chinese saying the spear and the shield. Using this comic, I guess spear wins [[User:Aprilfoolsupdate!|Aprilfoolsupdate!]] ([[User talk:Aprilfoolsupdate!|talk]]) 14:02, 3 May 2025 (UTC)&lt;br /&gt;
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Gonna be honest, I think this is my least favorite comic of the last 500 or so. It's a solution already given by minutephysics, except with all the perspective about reference frames, and what people actually mean with these terms replaced by a caption with a superiority complex. I suppose it gets pretty hard 3000 comics in, but c'mon.&lt;br /&gt;
[[Special:Contributions/172.68.35.83|172.68.35.83]] 19:18, 3 May 2025 (UTC)&lt;br /&gt;
:''--Comment by [[User:Darth Vader|Darth Vader]] ([[User talk:Darth Vader|talk]]) 22:07, 3 May 2025 (UTC) deleted--''&lt;br /&gt;
:: Ok, as we're giving personal opinions, I can't let it stand. Some might not exactly be total belly-laughs, but I think they each still have something to them and I prefer a mix of tones (and a wider spatter of focuses and treatments) to them all being exactly the same aspect of 'high-humour'. Not that I'd care to rank them, anyway, but I'm nowhere near ready to go off and make disparaging comments as if this site was bitchaboutxkcd.com, or whatever.&lt;br /&gt;
:: I won't try to tell you what to think, yourself, though maybe you should just roll with it. If you really don't like a comic, there'll be another along in two or three days. That might be even 'worse', as well as 'better', but then you can be even more unchill about ''that''. [[Special:Contributions/141.101.98.82|141.101.98.82]] 22:45, 3 May 2025 (UTC)&lt;br /&gt;
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All forces are irresistable. No objects are immovable. If any force acts on any object, the object moves (or deforms). [[Special:Contributions/172.68.84.145|172.68.84.145]] 22:22, 3 May 2025 (UTC)&lt;br /&gt;
:Can we not say that Dark Matter, if that's what we imagine it might be, entirely resists the electromagnetic force? (It's one of my possible interpretations of the comic, though without enough hint that it was intended to have me annotate the Explanation accordingly.)&lt;br /&gt;
:That said, it's ''unstoppable'' force (and there's are no Cavorite-like forceproof barriers), and it's rather that ''immovable'' objects are awkward to imagine under Relativity and there being no actual preferable frame of reference in the first place. [[Special:Contributions/172.69.195.113|172.69.195.113]] 22:50, 3 May 2025 (UTC)&lt;br /&gt;
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I would say that, since a force is mass*acceleration, the force cannot yet be stated while passing through the immovable object, because the object have to accelerate to calculate the force. Therefore, the &amp;quot;force&amp;quot; is only potential or kinetic energy at this point.[[Special:Contributions/162.158.127.25|162.158.127.25]] 12:54, 4 May 2025 (UTC)&lt;br /&gt;
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I would say that nothing happens. If you think of Pressure and immoveable object: An infinite force would acting on an immoveable (think infinite mass) object would lead to no movement at all.&lt;br /&gt;
Well, actually a black hole would be created, swallowing up the object and the force. Since the object's further behavior now cannot be seen from outside mass could be reduced anf the black hole could simply evaporate.&lt;br /&gt;
Result: Force and objects actual mass would simply be converted into energy, representing a bomb. [[Special:Contributions/104.23.187.224|104.23.187.224]] 16:42, 4 May 2025 (UTC)&lt;br /&gt;
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Did someone pull out ChatGPT again for this explanation? The claim that the humor derives from the contrast between the casual meaning of &amp;quot;force&amp;quot; and its meaning in physics is ridiculous and patently false. A &amp;quot;force&amp;quot; in physics doesn't have a physical position to begin with and so it can't &amp;quot;pass through&amp;quot; anything. At this point I really feel like there should be some kind of policy on writing explanations using LLMs like ChatGPT because it almost never adds anything of value and it just complicates the explanation and makes the process of ''real'' people digging into the actual meaning and themes more difficult.[[Special:Contributions/172.71.102.223|172.71.102.223]] 18:45, 4 May 2025 (UTC)&lt;br /&gt;
:Looking at what it replaced, it was an improvement, if not described as well as I think it should be. I believe it means to talk of the flux from a point-originated field (e.g. the most common fields normally deplete by inverse-square rule, all the way to infinity, from the point(s) of origin, though nuclear forces are... different).&lt;br /&gt;
:Given the depiction of the &amp;quot;unstoppable force&amp;quot; as actually 'moving', it has to be looked at as some kind of propagating pulse of 'forceness', albeit one that does not interact with the object seen as in its path (which would therefore neither react to the 'force' nor attenuate its potential effects). But that might need to be said in similarly short fashion (if my interpretation is even agreed with). Good luck! [[Special:Contributions/172.70.162.52|172.70.162.52]] 20:47, 4 May 2025 (UTC)&lt;br /&gt;
:Agree! The physical explanation of force is plainly wrong in the explanation text. Sebastian --[[Special:Contributions/172.68.110.207|172.68.110.207]] 23:18, 4 May 2025 (UTC)&lt;br /&gt;
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Could the objects be ''in front'' of each other instead of colliding? {{unsigned|Dardafus1|18:00, 5 May 2025}}&lt;br /&gt;
:Not both at the same time... [[Special:Contributions/172.69.224.82|172.69.224.82]] 19:49, 5 May 2025 (UTC)&lt;br /&gt;
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I contemplated this years ago while watching a {{w|Newton's cradle}}, and I came to the conclusion that the irresistible force would transform into an immovable object, and the immovable object would transform into an irresistible force.  But honestly, a variation of what he proposes also makes sense, that the immovable object would conduct the irresistible force and retransmit it out the other side.  The {{w|Black box}} view of the interaction would be the same either way.  [[User:SammyChips|SammyChips]] ([[User talk:SammyChips|talk]]) 20:07, 6 May 2025 (UTC)&lt;br /&gt;
:Except an '''irresistible''' force is different from an unstoppable one: if the force is irresistible, the force must have an effect on the object. I guess I could see how retransmitting the force would be a type of effect, but it's a bit of a stretch. [[User:Not without text|Not without text]] ([[User talk:Not without text|talk]]) 14:09, 15 May 2025 (UTC)&lt;br /&gt;
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Basically, these Unstoppable Force and Immovable Object there are '''''incorporeal'''''; they don't interact with anything. Like Neutrinos; any material object phases though them. As such, they are practically useless and pathetically weak. So i could try to predict, what happens when two '''''corporeal''''' Unstoppable Force and Immovable Object collide:&lt;br /&gt;
# By '''''corporeal''''', i mean: they interact with objects, and can't &amp;quot;phase through&amp;quot;. If they collide with something, they crush and displace objects. And no matter how much you throw at them, they don't get damaged and don't get displaced. As such, they're infinitely durable, infinitely strong, and therefore infinitely massive. All that is assuming that they're '''absolutely, 100%''' Unstoppable and Immovable (and not merely &amp;quot;very strong but finite&amp;quot;).&lt;br /&gt;
# They collide with each other. They try to displace each other, but can't because they're infinitely massive. They try to crush each other, but can't because they're infinitely durable. Since efficiency of this process is not 100% and involves 2 infinitely strong objects, the waste energy (e.g. heat, sound, etc) and object's gravity ends up destroying the entire Universe, a-la [https://what-if.xkcd.com/140/ Proton Moon, Electron Earth].&lt;br /&gt;
# As to what happens to Unstoppable Force and Immovable Object: this boils down into &amp;quot;What happens if two infinitely strong objects try to push each other in opposite directions&amp;quot;. Both of them have same power (infinite), same mass (infinite), same energy (infinite). In turn, this boils down to &amp;quot;Infinity minus Infinity&amp;quot;; the &amp;quot;(+∞) + (-∞)&amp;quot;, &amp;quot;(+∞) / (+∞)&amp;quot; and &amp;quot;(-∞) / (-∞)&amp;quot; are undefined, like &amp;quot;x / 0&amp;quot; is. Therefore, formulas for calculating collision of finite objects don't apply; instead, something incomprehensible happens - likely ripping apart Laws Of Physics themselves and crashing The Universe.&lt;br /&gt;
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Correct me if i made mistakes. --[[User:SMGmsgsgd|SMGmsgsgd]] ([[User talk:SMGmsgsgd|talk]]) 09:59, 8 August 2025 (UTC)&lt;br /&gt;
:In simpler terms: Unstoppable Force vs Immovable Object, if both of them are '''''infinitely strong and corporeal''''' - is 1) meaningless as it boils to &amp;quot;(+∞) + (-∞)&amp;quot; (Infinity minus Infinity) and is undefined, and 2) irrelevant since infinitely many waste energy from this destroys entire Universe, so it's impossible to look and determine who ultimately &amp;quot;won&amp;quot;. --[[User:SMGmsgsgd|SMGmsgsgd]] ([[User talk:SMGmsgsgd|talk]]) 11:06, 16 August 2025 (UTC)&lt;br /&gt;
::Technically, that's more like two unstoppable things ''meeting from opposite directions''. The difference between something unstoppable and something unmovable might be better looked at in terms of momentum (unstoppable may be finite speed but infinite mass, unmovable is technically zero speed but still infinite mass) in which the infinities apply to the scalar elements and ''-∞'' makes no sense as an element. Though ''∞ - ∞'' may indeed come out of the comparison, not ''(+∞) + (-∞)'', and transfinite mathematics are likely to care a lot more that these are ''not'' equivalents, we're also into the realms of it being non-commutative ''and'' not reducing to &amp;quot;(+x) + (-x), ∴ = 0&amp;quot;.&lt;br /&gt;
::By another treatment, the effect upon the unstoppable object is infinite (the force/dynamic-momentum/whatever of the immovable one) and the one upon the immovable object is infinite (the resistance/static-momentum/whatever of the unstoppable one) resulting in 'infinity-times-two' (whatever that means!) total disruption, compared merely with the 'infinity-esque' quantity of disruption if either an unstoppable item were to hit a movable one or an immovable one is hit by something that is stoppable.&lt;br /&gt;
::You're already in trouble (at the very least mathematical, possibly also as an incautious observer, within the technically infinite range of all secondary effects) if ''either'' element of the problem is infinitely anything... having them both being infinite (including in direct opposition, say two infinitely unstoppable items colliding, or even a glancing blow) isn't ''much'' worse, as far as how infinities go (though something that produces an answer involving ∞&amp;amp;times;∞ at some point ''could'' be considered to be far more ...interesting). That's once you get over the fact that you're dealing with mathematics involving some definition of ''ω'' or even ''ε'', and have to deal with those appropriately. [[Special:Contributions/92.23.2.228|92.23.2.228]] 17:35, 16 August 2025 (UTC)&lt;br /&gt;
:::1) So, what is difference between ''(+∞) + (-∞)'' and ''∞ - ∞''? 2) if they're commutative, then what's the meaning of &amp;quot;(+x) + (-x), ∴ = 0&amp;quot; result? Both objects annihilating each-other into energy (impossible - they're infinitely durable)? Object's speed changing to arithmetic mean of their speeds, with regard to elasticity (impossible - they're immovable)? 3) if they're non-commutative, then what happens? --[[User:SMGmsgsgd|SMGmsgsgd]] ([[User talk:SMGmsgsgd|talk]]) 20:00, 17 August 2025 (UTC)&lt;/div&gt;</summary>
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		<id>https://www.explainxkcd.com/wiki/index.php?title=Talk:3084:_Unstoppable_Force_and_Immovable_Object&amp;diff=384367</id>
		<title>Talk:3084: Unstoppable Force and Immovable Object</title>
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lol, i remember this explanation from a minutephysics video. however, the version of the problem i heard, which is actually paradoxical, is &amp;quot;what happens when an immovable object meets an '''irresistible''' force?&amp;quot; [[User:Not without text|Not without text]] ([[User talk:Not without text|talk]]) 00:03, 3 May 2025 (UTC)&lt;br /&gt;
:That was also literally my first thought. [[169]], anyone? --[[User:Coconut Galaxy|Coconut Galaxy]] ([[User talk:Coconut Galaxy|talk]]) 05:37, 3 May 2025 (UTC)&lt;br /&gt;
::How do connect this comic with [[169: Words that End in GRY]]? I see no connection! --[[User:Kynde|Kynde]] ([[User talk:Kynde|talk]]) 16:43, 4 May 2025 (UTC)&lt;br /&gt;
:::Communicating poorly and then acting smug. --[[User:Coconut Galaxy|Coconut Galaxy]] ([[User talk:Coconut Galaxy|talk]]) 11:52, 5 May 2025 (UTC)&lt;br /&gt;
:The MinutePhysics video: [https://nebula.tv/videos/minute-physics-immovable-object-vs-unstoppable-force-which-wins/ on Nebula] or [https://youtu.be/9eKc5kgPVrA on YouTube] --[[User:NeatNit|NeatNit]] ([[User talk:NeatNit|talk]]) 09:55, 3 May 2025 (UTC)&lt;br /&gt;
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Come on, it's just an arrow made of W- bosons, right? [[User:TheTrainsKid|TheTrainsKid]] ([[User talk:TheTrainsKid|talk]]) 03:22, 3 May 2025 (UTC)&lt;br /&gt;
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Is there no joke here? Is it just the solution? [[User:Broseph|Broseph]] ([[User talk:Broseph|talk]]) 06:52, 3 May 2025 (UTC)&lt;br /&gt;
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I remember an explanation by Isaac Asimov in one of his books which was like &amp;quot;by definition, an immovable object will not move at all under any force in the universe, and an unstoppable force will move all of the objects in this way&amp;quot; and then explained how the definitions conflicted each other and as such prevented both from being able to register for the hypothetical at the same time [[Special:Contributions/172.64.236.161|172.64.236.161]] 06:55, 3 May 2025 (UTC)&lt;br /&gt;
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In the first MMO games, collision was a big problem. A player could block a doorway, and nobody else could go through. It was even worse if the player had &amp;quot;follower&amp;quot; characters or pets.&lt;br /&gt;
One solution was to have characters automatically &amp;quot;push&amp;quot; stationary characters out of the way, but that caused other problems. Modern MMO's such as World of Warcraft simply allow characters to pass through each other, as depicted in this xkcd comic. Our eyes fool us into &amp;quot;seeing&amp;quot; that two characters somehow slid past each other. [[Special:Contributions/172.68.228.132|172.68.228.132]] 07:29, 3 May 2025 (UTC)&lt;br /&gt;
:Our eyes, or the programmers?  I don't have that much experience with MMO's but they probably do render it in specific way to make that effect. -- [[User:Hkmaly|Hkmaly]] ([[User talk:Hkmaly|talk]]) 02:59, 4 May 2025 (UTC)&lt;br /&gt;
::It's been a few years since I played WoW, but at that time there wasn't anything hiding the fact that the characters were clipping through each other. although I'm not sure what the other poster was talking about being fooled &amp;quot;into 'seeing' that two characters somehow slid past each other&amp;quot; since to me it always looked like two characters passed right through each other.[[Special:Contributions/172.70.126.111|172.70.126.111]] 20:31, 6 May 2025 (UTC)&lt;br /&gt;
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When the two things pass through each other, at the instant where they both occupy exactly the same space, is there one object or two? [[Special:Contributions/162.158.216.159|162.158.216.159]] 08:02, 3 May 2025 (UTC)&lt;br /&gt;
:Given that force is not an object, one. Just like there was when they weren't colocated. [[Special:Contributions/172.69.43.220|172.69.43.220]] 08:29, 3 May 2025 (UTC)&lt;br /&gt;
::OK, but what about the 'unstoppable force carrying particles' in the title text? [[Special:Contributions/172.69.194.204|172.69.194.204]] 19:00, 3 May 2025 (UTC)&lt;br /&gt;
:::I understand it as if a particle interacting with the object counts as 'stopping', in which case an unstoppable force-carrying particle wont have any effect. --[[Special:Contributions/162.158.120.157|162.158.120.157]] 20:40, 3 May 2025 (UTC)&lt;br /&gt;
:Two, if you're counting particles as &amp;quot;objects&amp;quot;. At the level of particle interactions, two particles aren't merely distinguished by their spatial extent, but also by all their other &amp;quot;quantum numbers&amp;quot; -- charge, flavor, and others. You can absolutely have two particles, even two fermions, that have exactly the same wavefunction in space, but are distinguished by differing in other ways. (And in practice, something like this would be a fermion and a boson anyway.) [[User:Linkhyrule5|Linkhyrule5]] ([[User talk:Linkhyrule5|talk]]) 06:24, 6 May 2025 (UTC)&lt;br /&gt;
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The force could simply go around the object. The object hasn't moved, and the force wasn't stopped. [[User:Rtanenbaum|Rtanenbaum]] ([[User talk:Rtanenbaum|talk]]) 11:17, 3 May 2025 (UTC)&lt;br /&gt;
:Redirecting would imply the force could be redirected, allowing us to trap it inside a closed loop, effectively stopping it. [[Special:Contributions/172.70.57.132|172.70.57.132]] 15:38, 3 May 2025 (UTC)&lt;br /&gt;
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This is like the Chinese saying the spear and the shield. Using this comic, I guess spear wins [[User:Aprilfoolsupdate!|Aprilfoolsupdate!]] ([[User talk:Aprilfoolsupdate!|talk]]) 14:02, 3 May 2025 (UTC)&lt;br /&gt;
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Gonna be honest, I think this is my least favorite comic of the last 500 or so. It's a solution already given by minutephysics, except with all the perspective about reference frames, and what people actually mean with these terms replaced by a caption with a superiority complex. I suppose it gets pretty hard 3000 comics in, but c'mon.&lt;br /&gt;
[[Special:Contributions/172.68.35.83|172.68.35.83]] 19:18, 3 May 2025 (UTC)&lt;br /&gt;
:''--Comment by [[User:Darth Vader|Darth Vader]] ([[User talk:Darth Vader|talk]]) 22:07, 3 May 2025 (UTC) deleted--''&lt;br /&gt;
:: Ok, as we're giving personal opinions, I can't let it stand. Some might not exactly be total belly-laughs, but I think they each still have something to them and I prefer a mix of tones (and a wider spatter of focuses and treatments) to them all being exactly the same aspect of 'high-humour'. Not that I'd care to rank them, anyway, but I'm nowhere near ready to go off and make disparaging comments as if this site was bitchaboutxkcd.com, or whatever.&lt;br /&gt;
:: I won't try to tell you what to think, yourself, though maybe you should just roll with it. If you really don't like a comic, there'll be another along in two or three days. That might be even 'worse', as well as 'better', but then you can be even more unchill about ''that''. [[Special:Contributions/141.101.98.82|141.101.98.82]] 22:45, 3 May 2025 (UTC)&lt;br /&gt;
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All forces are irresistable. No objects are immovable. If any force acts on any object, the object moves (or deforms). [[Special:Contributions/172.68.84.145|172.68.84.145]] 22:22, 3 May 2025 (UTC)&lt;br /&gt;
:Can we not say that Dark Matter, if that's what we imagine it might be, entirely resists the electromagnetic force? (It's one of my possible interpretations of the comic, though without enough hint that it was intended to have me annotate the Explanation accordingly.)&lt;br /&gt;
:That said, it's ''unstoppable'' force (and there's are no Cavorite-like forceproof barriers), and it's rather that ''immovable'' objects are awkward to imagine under Relativity and there being no actual preferable frame of reference in the first place. [[Special:Contributions/172.69.195.113|172.69.195.113]] 22:50, 3 May 2025 (UTC)&lt;br /&gt;
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I would say that, since a force is mass*acceleration, the force cannot yet be stated while passing through the immovable object, because the object have to accelerate to calculate the force. Therefore, the &amp;quot;force&amp;quot; is only potential or kinetic energy at this point.[[Special:Contributions/162.158.127.25|162.158.127.25]] 12:54, 4 May 2025 (UTC)&lt;br /&gt;
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I would say that nothing happens. If you think of Pressure and immoveable object: An infinite force would acting on an immoveable (think infinite mass) object would lead to no movement at all.&lt;br /&gt;
Well, actually a black hole would be created, swallowing up the object and the force. Since the object's further behavior now cannot be seen from outside mass could be reduced anf the black hole could simply evaporate.&lt;br /&gt;
Result: Force and objects actual mass would simply be converted into energy, representing a bomb. [[Special:Contributions/104.23.187.224|104.23.187.224]] 16:42, 4 May 2025 (UTC)&lt;br /&gt;
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Did someone pull out ChatGPT again for this explanation? The claim that the humor derives from the contrast between the casual meaning of &amp;quot;force&amp;quot; and its meaning in physics is ridiculous and patently false. A &amp;quot;force&amp;quot; in physics doesn't have a physical position to begin with and so it can't &amp;quot;pass through&amp;quot; anything. At this point I really feel like there should be some kind of policy on writing explanations using LLMs like ChatGPT because it almost never adds anything of value and it just complicates the explanation and makes the process of ''real'' people digging into the actual meaning and themes more difficult.[[Special:Contributions/172.71.102.223|172.71.102.223]] 18:45, 4 May 2025 (UTC)&lt;br /&gt;
:Looking at what it replaced, it was an improvement, if not described as well as I think it should be. I believe it means to talk of the flux from a point-originated field (e.g. the most common fields normally deplete by inverse-square rule, all the way to infinity, from the point(s) of origin, though nuclear forces are... different).&lt;br /&gt;
:Given the depiction of the &amp;quot;unstoppable force&amp;quot; as actually 'moving', it has to be looked at as some kind of propagating pulse of 'forceness', albeit one that does not interact with the object seen as in its path (which would therefore neither react to the 'force' nor attenuate its potential effects). But that might need to be said in similarly short fashion (if my interpretation is even agreed with). Good luck! [[Special:Contributions/172.70.162.52|172.70.162.52]] 20:47, 4 May 2025 (UTC)&lt;br /&gt;
:Agree! The physical explanation of force is plainly wrong in the explanation text. Sebastian --[[Special:Contributions/172.68.110.207|172.68.110.207]] 23:18, 4 May 2025 (UTC)&lt;br /&gt;
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Could the objects be ''in front'' of each other instead of colliding? {{unsigned|Dardafus1|18:00, 5 May 2025}}&lt;br /&gt;
:Not both at the same time... [[Special:Contributions/172.69.224.82|172.69.224.82]] 19:49, 5 May 2025 (UTC)&lt;br /&gt;
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I contemplated this years ago while watching a {{w|Newton's cradle}}, and I came to the conclusion that the irresistible force would transform into an immovable object, and the immovable object would transform into an irresistible force.  But honestly, a variation of what he proposes also makes sense, that the immovable object would conduct the irresistible force and retransmit it out the other side.  The {{w|Black box}} view of the interaction would be the same either way.  [[User:SammyChips|SammyChips]] ([[User talk:SammyChips|talk]]) 20:07, 6 May 2025 (UTC)&lt;br /&gt;
:Except an '''irresistible''' force is different from an unstoppable one: if the force is irresistible, the force must have an effect on the object. I guess I could see how retransmitting the force would be a type of effect, but it's a bit of a stretch. [[User:Not without text|Not without text]] ([[User talk:Not without text|talk]]) 14:09, 15 May 2025 (UTC)&lt;br /&gt;
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Basically, these Unstoppable Force and Immovable Object there are '''''incorporeal'''''; they don't interact with anything. Like Neutrinos; any material object phases though them. As such, they are practically useless and pathetically weak. So i could try to predict, what happens when two '''''corporeal''''' Unstoppable Force and Immovable Object collide:&lt;br /&gt;
# By '''''corporeal''''', i mean: they interact with objects, and can't &amp;quot;phase through&amp;quot;. If they collide with something, they crush and displace objects. And no matter how much you throw at them, they don't get damaged and don't get displaced. As such, they're infinitely durable, infinitely strong, and therefore infinitely massive. All that is assuming that they're '''absolutely, 100%''' Unstoppable and Immovable (and not merely &amp;quot;very strong but finite&amp;quot;).&lt;br /&gt;
# They collide with each other. They try to displace each other, but can't because they're infinitely massive. They try to crush each other, but can't because they're infinitely durable. Since efficiency of this process is not 100% and involves 2 infinitely strong objects, the waste energy (e.g. heat, sound, etc) and object's gravity ends up destroying the entire Universe, a-la [https://what-if.xkcd.com/140/ Proton Moon, Electron Earth].&lt;br /&gt;
# As to what happens to Unstoppable Force and Immovable Object: this boils down into &amp;quot;What happens if two infinitely strong objects try to push each other in opposite directions&amp;quot;. Both of them have same power (infinite), same mass (infinite), same energy (infinite). In turn, this boils down to &amp;quot;Infinity minus Infinity&amp;quot;; the &amp;quot;(+∞) + (-∞)&amp;quot;, &amp;quot;(+∞) / (+∞)&amp;quot; and &amp;quot;(-∞) / (-∞)&amp;quot; are undefined, like &amp;quot;x / 0&amp;quot; is. Therefore, formulas for calculating collision of finite objects don't apply; instead, something incomprehensible happens - likely ripping apart Laws Of Physics themselves and crashing The Universe.&lt;br /&gt;
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Correct me if i made mistakes. --[[User:SMGmsgsgd|SMGmsgsgd]] ([[User talk:SMGmsgsgd|talk]]) 09:59, 8 August 2025 (UTC)&lt;br /&gt;
:In simpler terms: Unstoppable Force vs Immovable Object, if both of them are '''''infinitely strong and corporeal''''' - is 1) meaningless as it boils to &amp;quot;(+∞) + (-∞)&amp;quot; (Infinity minus Infinity) and is undefined, and 2) irrelevant since infinitely many waste energy from this destroys entire Universe, so it's impossible to look and determine who ultimately &amp;quot;won&amp;quot;. --[[User:SMGmsgsgd|SMGmsgsgd]] ([[User talk:SMGmsgsgd|talk]]) 11:06, 16 August 2025 (UTC)&lt;br /&gt;
::Technically, that's more like two unstoppable things ''meeting from opposite directions''. The difference between something unstoppable and something unmovable might be better looked at in terms of momentum (unstoppable may be finite speed but infinite mass, unmovable is technically zero speed but still infinite mass) in which the infinities apply to the scalar elements and ''-∞'' makes no sense as an element. Though ''∞ - ∞'' may indeed come out of the comparison, not ''(+∞) + (-∞)'', and transfinite mathematics are likely to care a lot more that these are ''not'' equivalents, we're also into the realms of it being non-commutative ''and'' not reducing to &amp;quot;(+x) + (-x), ∴ = 0&amp;quot;.&lt;br /&gt;
:::1) So, what is difference between ''(+∞) + (-∞)'' and ''∞ - ∞''? 2) if they're commutative, then what's the meaning of &amp;quot;(+x) + (-x), ∴ = 0&amp;quot; result? Both objects annihilating each-other into energy (impossible - they're infinitely durable)? Object's speed changing to arithmetic mean of their speeds, with regard to elasticity (impossible - they're immovable)? 3) if they're non-commutative, then what happens? --[[User:SMGmsgsgd|SMGmsgsgd]] ([[User talk:SMGmsgsgd|talk]]) 20:00, 17 August 2025 (UTC)&lt;br /&gt;
::By another treatment, the effect upon the unstoppable object is infinite (the force/dynamic-momentum/whatever of the immovable one) and the one upon the immovable object is infinite (the resistance/static-momentum/whatever of the unstoppable one) resulting in 'infinity-times-two' (whatever that means!) total disruption, compared merely with the 'infinity-esque' quantity of disruption if either an unstoppable item were to hit a movable one or an immovable one is hit by something that is stoppable.&lt;br /&gt;
::You're already in trouble (at the very least mathematical, possibly also as an incautious observer, within the technically infinite range of all secondary effects) if ''either'' element of the problem is infinitely anything... having them both being infinite (including in direct opposition, say two infinitely unstoppable items colliding, or even a glancing blow) isn't ''much'' worse, as far as how infinities go (though something that produces an answer involving ∞&amp;amp;times;∞ at some point ''could'' be considered to be far more ...interesting). That's once you get over the fact that you're dealing with mathematics involving some definition of ''ω'' or even ''ε'', and have to deal with those appropriately. [[Special:Contributions/92.23.2.228|92.23.2.228]] 17:35, 16 August 2025 (UTC)&lt;/div&gt;</summary>
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lol, i remember this explanation from a minutephysics video. however, the version of the problem i heard, which is actually paradoxical, is &amp;quot;what happens when an immovable object meets an '''irresistible''' force?&amp;quot; [[User:Not without text|Not without text]] ([[User talk:Not without text|talk]]) 00:03, 3 May 2025 (UTC)&lt;br /&gt;
:That was also literally my first thought. [[169]], anyone? --[[User:Coconut Galaxy|Coconut Galaxy]] ([[User talk:Coconut Galaxy|talk]]) 05:37, 3 May 2025 (UTC)&lt;br /&gt;
::How do connect this comic with [[169: Words that End in GRY]]? I see no connection! --[[User:Kynde|Kynde]] ([[User talk:Kynde|talk]]) 16:43, 4 May 2025 (UTC)&lt;br /&gt;
:::Communicating poorly and then acting smug. --[[User:Coconut Galaxy|Coconut Galaxy]] ([[User talk:Coconut Galaxy|talk]]) 11:52, 5 May 2025 (UTC)&lt;br /&gt;
:The MinutePhysics video: [https://nebula.tv/videos/minute-physics-immovable-object-vs-unstoppable-force-which-wins/ on Nebula] or [https://youtu.be/9eKc5kgPVrA on YouTube] --[[User:NeatNit|NeatNit]] ([[User talk:NeatNit|talk]]) 09:55, 3 May 2025 (UTC)&lt;br /&gt;
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Come on, it's just an arrow made of W- bosons, right? [[User:TheTrainsKid|TheTrainsKid]] ([[User talk:TheTrainsKid|talk]]) 03:22, 3 May 2025 (UTC)&lt;br /&gt;
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Is there no joke here? Is it just the solution? [[User:Broseph|Broseph]] ([[User talk:Broseph|talk]]) 06:52, 3 May 2025 (UTC)&lt;br /&gt;
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I remember an explanation by Isaac Asimov in one of his books which was like &amp;quot;by definition, an immovable object will not move at all under any force in the universe, and an unstoppable force will move all of the objects in this way&amp;quot; and then explained how the definitions conflicted each other and as such prevented both from being able to register for the hypothetical at the same time [[Special:Contributions/172.64.236.161|172.64.236.161]] 06:55, 3 May 2025 (UTC)&lt;br /&gt;
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In the first MMO games, collision was a big problem. A player could block a doorway, and nobody else could go through. It was even worse if the player had &amp;quot;follower&amp;quot; characters or pets.&lt;br /&gt;
One solution was to have characters automatically &amp;quot;push&amp;quot; stationary characters out of the way, but that caused other problems. Modern MMO's such as World of Warcraft simply allow characters to pass through each other, as depicted in this xkcd comic. Our eyes fool us into &amp;quot;seeing&amp;quot; that two characters somehow slid past each other. [[Special:Contributions/172.68.228.132|172.68.228.132]] 07:29, 3 May 2025 (UTC)&lt;br /&gt;
:Our eyes, or the programmers?  I don't have that much experience with MMO's but they probably do render it in specific way to make that effect. -- [[User:Hkmaly|Hkmaly]] ([[User talk:Hkmaly|talk]]) 02:59, 4 May 2025 (UTC)&lt;br /&gt;
::It's been a few years since I played WoW, but at that time there wasn't anything hiding the fact that the characters were clipping through each other. although I'm not sure what the other poster was talking about being fooled &amp;quot;into 'seeing' that two characters somehow slid past each other&amp;quot; since to me it always looked like two characters passed right through each other.[[Special:Contributions/172.70.126.111|172.70.126.111]] 20:31, 6 May 2025 (UTC)&lt;br /&gt;
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When the two things pass through each other, at the instant where they both occupy exactly the same space, is there one object or two? [[Special:Contributions/162.158.216.159|162.158.216.159]] 08:02, 3 May 2025 (UTC)&lt;br /&gt;
:Given that force is not an object, one. Just like there was when they weren't colocated. [[Special:Contributions/172.69.43.220|172.69.43.220]] 08:29, 3 May 2025 (UTC)&lt;br /&gt;
::OK, but what about the 'unstoppable force carrying particles' in the title text? [[Special:Contributions/172.69.194.204|172.69.194.204]] 19:00, 3 May 2025 (UTC)&lt;br /&gt;
:::I understand it as if a particle interacting with the object counts as 'stopping', in which case an unstoppable force-carrying particle wont have any effect. --[[Special:Contributions/162.158.120.157|162.158.120.157]] 20:40, 3 May 2025 (UTC)&lt;br /&gt;
:Two, if you're counting particles as &amp;quot;objects&amp;quot;. At the level of particle interactions, two particles aren't merely distinguished by their spatial extent, but also by all their other &amp;quot;quantum numbers&amp;quot; -- charge, flavor, and others. You can absolutely have two particles, even two fermions, that have exactly the same wavefunction in space, but are distinguished by differing in other ways. (And in practice, something like this would be a fermion and a boson anyway.) [[User:Linkhyrule5|Linkhyrule5]] ([[User talk:Linkhyrule5|talk]]) 06:24, 6 May 2025 (UTC)&lt;br /&gt;
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The force could simply go around the object. The object hasn't moved, and the force wasn't stopped. [[User:Rtanenbaum|Rtanenbaum]] ([[User talk:Rtanenbaum|talk]]) 11:17, 3 May 2025 (UTC)&lt;br /&gt;
:Redirecting would imply the force could be redirected, allowing us to trap it inside a closed loop, effectively stopping it. [[Special:Contributions/172.70.57.132|172.70.57.132]] 15:38, 3 May 2025 (UTC)&lt;br /&gt;
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This is like the Chinese saying the spear and the shield. Using this comic, I guess spear wins [[User:Aprilfoolsupdate!|Aprilfoolsupdate!]] ([[User talk:Aprilfoolsupdate!|talk]]) 14:02, 3 May 2025 (UTC)&lt;br /&gt;
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Gonna be honest, I think this is my least favorite comic of the last 500 or so. It's a solution already given by minutephysics, except with all the perspective about reference frames, and what people actually mean with these terms replaced by a caption with a superiority complex. I suppose it gets pretty hard 3000 comics in, but c'mon.&lt;br /&gt;
[[Special:Contributions/172.68.35.83|172.68.35.83]] 19:18, 3 May 2025 (UTC)&lt;br /&gt;
:''--Comment by [[User:Darth Vader|Darth Vader]] ([[User talk:Darth Vader|talk]]) 22:07, 3 May 2025 (UTC) deleted--''&lt;br /&gt;
:: Ok, as we're giving personal opinions, I can't let it stand. Some might not exactly be total belly-laughs, but I think they each still have something to them and I prefer a mix of tones (and a wider spatter of focuses and treatments) to them all being exactly the same aspect of 'high-humour'. Not that I'd care to rank them, anyway, but I'm nowhere near ready to go off and make disparaging comments as if this site was bitchaboutxkcd.com, or whatever.&lt;br /&gt;
:: I won't try to tell you what to think, yourself, though maybe you should just roll with it. If you really don't like a comic, there'll be another along in two or three days. That might be even 'worse', as well as 'better', but then you can be even more unchill about ''that''. [[Special:Contributions/141.101.98.82|141.101.98.82]] 22:45, 3 May 2025 (UTC)&lt;br /&gt;
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All forces are irresistable. No objects are immovable. If any force acts on any object, the object moves (or deforms). [[Special:Contributions/172.68.84.145|172.68.84.145]] 22:22, 3 May 2025 (UTC)&lt;br /&gt;
:Can we not say that Dark Matter, if that's what we imagine it might be, entirely resists the electromagnetic force? (It's one of my possible interpretations of the comic, though without enough hint that it was intended to have me annotate the Explanation accordingly.)&lt;br /&gt;
:That said, it's ''unstoppable'' force (and there's are no Cavorite-like forceproof barriers), and it's rather that ''immovable'' objects are awkward to imagine under Relativity and there being no actual preferable frame of reference in the first place. [[Special:Contributions/172.69.195.113|172.69.195.113]] 22:50, 3 May 2025 (UTC)&lt;br /&gt;
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I would say that, since a force is mass*acceleration, the force cannot yet be stated while passing through the immovable object, because the object have to accelerate to calculate the force. Therefore, the &amp;quot;force&amp;quot; is only potential or kinetic energy at this point.[[Special:Contributions/162.158.127.25|162.158.127.25]] 12:54, 4 May 2025 (UTC)&lt;br /&gt;
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I would say that nothing happens. If you think of Pressure and immoveable object: An infinite force would acting on an immoveable (think infinite mass) object would lead to no movement at all.&lt;br /&gt;
Well, actually a black hole would be created, swallowing up the object and the force. Since the object's further behavior now cannot be seen from outside mass could be reduced anf the black hole could simply evaporate.&lt;br /&gt;
Result: Force and objects actual mass would simply be converted into energy, representing a bomb. [[Special:Contributions/104.23.187.224|104.23.187.224]] 16:42, 4 May 2025 (UTC)&lt;br /&gt;
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Did someone pull out ChatGPT again for this explanation? The claim that the humor derives from the contrast between the casual meaning of &amp;quot;force&amp;quot; and its meaning in physics is ridiculous and patently false. A &amp;quot;force&amp;quot; in physics doesn't have a physical position to begin with and so it can't &amp;quot;pass through&amp;quot; anything. At this point I really feel like there should be some kind of policy on writing explanations using LLMs like ChatGPT because it almost never adds anything of value and it just complicates the explanation and makes the process of ''real'' people digging into the actual meaning and themes more difficult.[[Special:Contributions/172.71.102.223|172.71.102.223]] 18:45, 4 May 2025 (UTC)&lt;br /&gt;
:Looking at what it replaced, it was an improvement, if not described as well as I think it should be. I believe it means to talk of the flux from a point-originated field (e.g. the most common fields normally deplete by inverse-square rule, all the way to infinity, from the point(s) of origin, though nuclear forces are... different).&lt;br /&gt;
:Given the depiction of the &amp;quot;unstoppable force&amp;quot; as actually 'moving', it has to be looked at as some kind of propagating pulse of 'forceness', albeit one that does not interact with the object seen as in its path (which would therefore neither react to the 'force' nor attenuate its potential effects). But that might need to be said in similarly short fashion (if my interpretation is even agreed with). Good luck! [[Special:Contributions/172.70.162.52|172.70.162.52]] 20:47, 4 May 2025 (UTC)&lt;br /&gt;
:Agree! The physical explanation of force is plainly wrong in the explanation text. Sebastian --[[Special:Contributions/172.68.110.207|172.68.110.207]] 23:18, 4 May 2025 (UTC)&lt;br /&gt;
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Could the objects be ''in front'' of each other instead of colliding? {{unsigned|Dardafus1|18:00, 5 May 2025}}&lt;br /&gt;
:Not both at the same time... [[Special:Contributions/172.69.224.82|172.69.224.82]] 19:49, 5 May 2025 (UTC)&lt;br /&gt;
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I contemplated this years ago while watching a {{w|Newton's cradle}}, and I came to the conclusion that the irresistible force would transform into an immovable object, and the immovable object would transform into an irresistible force.  But honestly, a variation of what he proposes also makes sense, that the immovable object would conduct the irresistible force and retransmit it out the other side.  The {{w|Black box}} view of the interaction would be the same either way.  [[User:SammyChips|SammyChips]] ([[User talk:SammyChips|talk]]) 20:07, 6 May 2025 (UTC)&lt;br /&gt;
:Except an '''irresistible''' force is different from an unstoppable one: if the force is irresistible, the force must have an effect on the object. I guess I could see how retransmitting the force would be a type of effect, but it's a bit of a stretch. [[User:Not without text|Not without text]] ([[User talk:Not without text|talk]]) 14:09, 15 May 2025 (UTC)&lt;br /&gt;
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Basically, these Unstoppable Force and Immovable Object there are '''''incorporeal'''''; they don't interact with anything. Like Neutrinos; any material object phases though them. As such, they are practically useless and pathetically weak. So i could try to predict, what happens when two '''''corporeal''''' Unstoppable Force and Immovable Object collide:&lt;br /&gt;
# By '''''corporeal''''', i mean: they interact with objects, and can't &amp;quot;phase through&amp;quot;. If they collide with something, they crush and displace objects. And no matter how much you throw at them, they don't get damaged and don't get displaced. As such, they're infinitely durable, infinitely strong, and therefore infinitely massive. All that is assuming that they're '''absolutely, 100%''' Unstoppable and Immovable (and not merely &amp;quot;very strong but finite&amp;quot;).&lt;br /&gt;
# They collide with each other. They try to displace each other, but can't because they're infinitely massive. They try to crush each other, but can't because they're infinitely durable. Since efficiency of this process is not 100% and involves 2 infinitely strong objects, the waste energy (e.g. heat, sound, etc) and object's gravity ends up destroying the entire Universe, a-la [https://what-if.xkcd.com/140/ Proton Moon, Electron Earth].&lt;br /&gt;
# As to what happens to Unstoppable Force and Immovable Object: this boils down into &amp;quot;What happens if two infinitely strong objects try to push each other in opposite directions&amp;quot;. Both of them have same power (infinite), same mass (infinite), same energy (infinite). In turn, this boils down to &amp;quot;Infinity minus Infinity&amp;quot;; the &amp;quot;(+∞) + (-∞)&amp;quot;, &amp;quot;(+∞) / (+∞)&amp;quot; and &amp;quot;(-∞) / (-∞)&amp;quot; are undefined, like &amp;quot;x / 0&amp;quot; is. Therefore, formulas for calculating collision of finite objects don't apply; instead, something incomprehensible happens - likely ripping apart Laws Of Physics themselves and crashing The Universe.&lt;br /&gt;
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Correct me if i made mistakes. --[[User:SMGmsgsgd|SMGmsgsgd]] ([[User talk:SMGmsgsgd|talk]]) 09:59, 8 August 2025 (UTC)&lt;br /&gt;
:In simpler terms: Unstoppable Force vs Immovable Object, if both of them are '''''infinitely strong and corporeal''''' - is 1) meaningless as it boils to &amp;quot;(+∞) + (-∞)&amp;quot; (Infinity minus Infinity) and is undefined, and 2) irrelevant since infinitely many waste energy from this destroys entire Universe, so it's impossible to look and determine who ultimately &amp;quot;won&amp;quot;. --[[User:SMGmsgsgd|SMGmsgsgd]] ([[User talk:SMGmsgsgd|talk]]) 11:06, 16 August 2025 (UTC)&lt;/div&gt;</summary>
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	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=Talk:3084:_Unstoppable_Force_and_Immovable_Object&amp;diff=383698</id>
		<title>Talk:3084: Unstoppable Force and Immovable Object</title>
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				<updated>2025-08-08T10:06:13Z</updated>
		
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lol, i remember this explanation from a minutephysics video. however, the version of the problem i heard, which is actually paradoxical, is &amp;quot;what happens when an immovable object meets an '''irresistible''' force?&amp;quot; [[User:Not without text|Not without text]] ([[User talk:Not without text|talk]]) 00:03, 3 May 2025 (UTC)&lt;br /&gt;
:That was also literally my first thought. [[169]], anyone? --[[User:Coconut Galaxy|Coconut Galaxy]] ([[User talk:Coconut Galaxy|talk]]) 05:37, 3 May 2025 (UTC)&lt;br /&gt;
::How do connect this comic with [[169: Words that End in GRY]]? I see no connection! --[[User:Kynde|Kynde]] ([[User talk:Kynde|talk]]) 16:43, 4 May 2025 (UTC)&lt;br /&gt;
:::Communicating poorly and then acting smug. --[[User:Coconut Galaxy|Coconut Galaxy]] ([[User talk:Coconut Galaxy|talk]]) 11:52, 5 May 2025 (UTC)&lt;br /&gt;
:The MinutePhysics video: [https://nebula.tv/videos/minute-physics-immovable-object-vs-unstoppable-force-which-wins/ on Nebula] or [https://youtu.be/9eKc5kgPVrA on YouTube] --[[User:NeatNit|NeatNit]] ([[User talk:NeatNit|talk]]) 09:55, 3 May 2025 (UTC)&lt;br /&gt;
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Come on, it's just an arrow made of W- bosons, right? [[User:TheTrainsKid|TheTrainsKid]] ([[User talk:TheTrainsKid|talk]]) 03:22, 3 May 2025 (UTC)&lt;br /&gt;
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Is there no joke here? Is it just the solution? [[User:Broseph|Broseph]] ([[User talk:Broseph|talk]]) 06:52, 3 May 2025 (UTC)&lt;br /&gt;
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I remember an explanation by Isaac Asimov in one of his books which was like &amp;quot;by definition, an immovable object will not move at all under any force in the universe, and an unstoppable force will move all of the objects in this way&amp;quot; and then explained how the definitions conflicted each other and as such prevented both from being able to register for the hypothetical at the same time [[Special:Contributions/172.64.236.161|172.64.236.161]] 06:55, 3 May 2025 (UTC)&lt;br /&gt;
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In the first MMO games, collision was a big problem. A player could block a doorway, and nobody else could go through. It was even worse if the player had &amp;quot;follower&amp;quot; characters or pets.&lt;br /&gt;
One solution was to have characters automatically &amp;quot;push&amp;quot; stationary characters out of the way, but that caused other problems. Modern MMO's such as World of Warcraft simply allow characters to pass through each other, as depicted in this xkcd comic. Our eyes fool us into &amp;quot;seeing&amp;quot; that two characters somehow slid past each other. [[Special:Contributions/172.68.228.132|172.68.228.132]] 07:29, 3 May 2025 (UTC)&lt;br /&gt;
:Our eyes, or the programmers?  I don't have that much experience with MMO's but they probably do render it in specific way to make that effect. -- [[User:Hkmaly|Hkmaly]] ([[User talk:Hkmaly|talk]]) 02:59, 4 May 2025 (UTC)&lt;br /&gt;
::It's been a few years since I played WoW, but at that time there wasn't anything hiding the fact that the characters were clipping through each other. although I'm not sure what the other poster was talking about being fooled &amp;quot;into 'seeing' that two characters somehow slid past each other&amp;quot; since to me it always looked like two characters passed right through each other.[[Special:Contributions/172.70.126.111|172.70.126.111]] 20:31, 6 May 2025 (UTC)&lt;br /&gt;
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When the two things pass through each other, at the instant where they both occupy exactly the same space, is there one object or two? [[Special:Contributions/162.158.216.159|162.158.216.159]] 08:02, 3 May 2025 (UTC)&lt;br /&gt;
:Given that force is not an object, one. Just like there was when they weren't colocated. [[Special:Contributions/172.69.43.220|172.69.43.220]] 08:29, 3 May 2025 (UTC)&lt;br /&gt;
::OK, but what about the 'unstoppable force carrying particles' in the title text? [[Special:Contributions/172.69.194.204|172.69.194.204]] 19:00, 3 May 2025 (UTC)&lt;br /&gt;
:::I understand it as if a particle interacting with the object counts as 'stopping', in which case an unstoppable force-carrying particle wont have any effect. --[[Special:Contributions/162.158.120.157|162.158.120.157]] 20:40, 3 May 2025 (UTC)&lt;br /&gt;
:Two, if you're counting particles as &amp;quot;objects&amp;quot;. At the level of particle interactions, two particles aren't merely distinguished by their spatial extent, but also by all their other &amp;quot;quantum numbers&amp;quot; -- charge, flavor, and others. You can absolutely have two particles, even two fermions, that have exactly the same wavefunction in space, but are distinguished by differing in other ways. (And in practice, something like this would be a fermion and a boson anyway.) [[User:Linkhyrule5|Linkhyrule5]] ([[User talk:Linkhyrule5|talk]]) 06:24, 6 May 2025 (UTC)&lt;br /&gt;
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The force could simply go around the object. The object hasn't moved, and the force wasn't stopped. [[User:Rtanenbaum|Rtanenbaum]] ([[User talk:Rtanenbaum|talk]]) 11:17, 3 May 2025 (UTC)&lt;br /&gt;
:Redirecting would imply the force could be redirected, allowing us to trap it inside a closed loop, effectively stopping it. [[Special:Contributions/172.70.57.132|172.70.57.132]] 15:38, 3 May 2025 (UTC)&lt;br /&gt;
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This is like the Chinese saying the spear and the shield. Using this comic, I guess spear wins [[User:Aprilfoolsupdate!|Aprilfoolsupdate!]] ([[User talk:Aprilfoolsupdate!|talk]]) 14:02, 3 May 2025 (UTC)&lt;br /&gt;
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Gonna be honest, I think this is my least favorite comic of the last 500 or so. It's a solution already given by minutephysics, except with all the perspective about reference frames, and what people actually mean with these terms replaced by a caption with a superiority complex. I suppose it gets pretty hard 3000 comics in, but c'mon.&lt;br /&gt;
[[Special:Contributions/172.68.35.83|172.68.35.83]] 19:18, 3 May 2025 (UTC)&lt;br /&gt;
:''--Comment by [[User:Darth Vader|Darth Vader]] ([[User talk:Darth Vader|talk]]) 22:07, 3 May 2025 (UTC) deleted--''&lt;br /&gt;
:: Ok, as we're giving personal opinions, I can't let it stand. Some might not exactly be total belly-laughs, but I think they each still have something to them and I prefer a mix of tones (and a wider spatter of focuses and treatments) to them all being exactly the same aspect of 'high-humour'. Not that I'd care to rank them, anyway, but I'm nowhere near ready to go off and make disparaging comments as if this site was bitchaboutxkcd.com, or whatever.&lt;br /&gt;
:: I won't try to tell you what to think, yourself, though maybe you should just roll with it. If you really don't like a comic, there'll be another along in two or three days. That might be even 'worse', as well as 'better', but then you can be even more unchill about ''that''. [[Special:Contributions/141.101.98.82|141.101.98.82]] 22:45, 3 May 2025 (UTC)&lt;br /&gt;
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All forces are irresistable. No objects are immovable. If any force acts on any object, the object moves (or deforms). [[Special:Contributions/172.68.84.145|172.68.84.145]] 22:22, 3 May 2025 (UTC)&lt;br /&gt;
:Can we not say that Dark Matter, if that's what we imagine it might be, entirely resists the electromagnetic force? (It's one of my possible interpretations of the comic, though without enough hint that it was intended to have me annotate the Explanation accordingly.)&lt;br /&gt;
:That said, it's ''unstoppable'' force (and there's are no Cavorite-like forceproof barriers), and it's rather that ''immovable'' objects are awkward to imagine under Relativity and there being no actual preferable frame of reference in the first place. [[Special:Contributions/172.69.195.113|172.69.195.113]] 22:50, 3 May 2025 (UTC)&lt;br /&gt;
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I would say that, since a force is mass*acceleration, the force cannot yet be stated while passing through the immovable object, because the object have to accelerate to calculate the force. Therefore, the &amp;quot;force&amp;quot; is only potential or kinetic energy at this point.[[Special:Contributions/162.158.127.25|162.158.127.25]] 12:54, 4 May 2025 (UTC)&lt;br /&gt;
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I would say that nothing happens. If you think of Pressure and immoveable object: An infinite force would acting on an immoveable (think infinite mass) object would lead to no movement at all.&lt;br /&gt;
Well, actually a black hole would be created, swallowing up the object and the force. Since the object's further behavior now cannot be seen from outside mass could be reduced anf the black hole could simply evaporate.&lt;br /&gt;
Result: Force and objects actual mass would simply be converted into energy, representing a bomb. [[Special:Contributions/104.23.187.224|104.23.187.224]] 16:42, 4 May 2025 (UTC)&lt;br /&gt;
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Did someone pull out ChatGPT again for this explanation? The claim that the humor derives from the contrast between the casual meaning of &amp;quot;force&amp;quot; and its meaning in physics is ridiculous and patently false. A &amp;quot;force&amp;quot; in physics doesn't have a physical position to begin with and so it can't &amp;quot;pass through&amp;quot; anything. At this point I really feel like there should be some kind of policy on writing explanations using LLMs like ChatGPT because it almost never adds anything of value and it just complicates the explanation and makes the process of ''real'' people digging into the actual meaning and themes more difficult.[[Special:Contributions/172.71.102.223|172.71.102.223]] 18:45, 4 May 2025 (UTC)&lt;br /&gt;
:Looking at what it replaced, it was an improvement, if not described as well as I think it should be. I believe it means to talk of the flux from a point-originated field (e.g. the most common fields normally deplete by inverse-square rule, all the way to infinity, from the point(s) of origin, though nuclear forces are... different).&lt;br /&gt;
:Given the depiction of the &amp;quot;unstoppable force&amp;quot; as actually 'moving', it has to be looked at as some kind of propagating pulse of 'forceness', albeit one that does not interact with the object seen as in its path (which would therefore neither react to the 'force' nor attenuate its potential effects). But that might need to be said in similarly short fashion (if my interpretation is even agreed with). Good luck! [[Special:Contributions/172.70.162.52|172.70.162.52]] 20:47, 4 May 2025 (UTC)&lt;br /&gt;
:Agree! The physical explanation of force is plainly wrong in the explanation text. Sebastian --[[Special:Contributions/172.68.110.207|172.68.110.207]] 23:18, 4 May 2025 (UTC)&lt;br /&gt;
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Could the objects be ''in front'' of each other instead of colliding? {{unsigned|Dardafus1|18:00, 5 May 2025}}&lt;br /&gt;
:Not both at the same time... [[Special:Contributions/172.69.224.82|172.69.224.82]] 19:49, 5 May 2025 (UTC)&lt;br /&gt;
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I contemplated this years ago while watching a {{w|Newton's cradle}}, and I came to the conclusion that the irresistible force would transform into an immovable object, and the immovable object would transform into an irresistible force.  But honestly, a variation of what he proposes also makes sense, that the immovable object would conduct the irresistible force and retransmit it out the other side.  The {{w|Black box}} view of the interaction would be the same either way.  [[User:SammyChips|SammyChips]] ([[User talk:SammyChips|talk]]) 20:07, 6 May 2025 (UTC)&lt;br /&gt;
:Except an '''irresistible''' force is different from an unstoppable one: if the force is irresistible, the force must have an effect on the object. I guess I could see how retransmitting the force would be a type of effect, but it's a bit of a stretch. [[User:Not without text|Not without text]] ([[User talk:Not without text|talk]]) 14:09, 15 May 2025 (UTC)&lt;br /&gt;
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Basically, these Unstoppable Force and Immovable Object there are '''''incorporeal'''''; they don't interact with anything. Like Neutrinos; any material object phases though them. As such, they are practically useless and pathetically weak. So i could try to predict, what happens when two '''''corporeal''''' Unstoppable Force and Immovable Object collide:&lt;br /&gt;
# By '''''corporeal''''', i mean: they interact with objects, and can't &amp;quot;phase through&amp;quot;. If they collide with something, they crush and displace objects. And no matter how much you throw at them, they don't get damaged and don't get displaced. As such, they're infinitely durable, infinitely strong, and therefore infinitely massive. All that is assuming that they're '''absolutely, 100%''' Unstoppable and Immovable (and not merely &amp;quot;very strong but finite&amp;quot;).&lt;br /&gt;
# They collide with each other. They try to displace each other, but can't because they're infinitely massive. They try to crush each other, but can't because they're infinitely durable. Since efficiency of this process is not 100% and involves 2 infinitely strong objects, the waste energy (e.g. heat, sound, etc) and object's gravity ends up destroying the entire Universe, a-la [https://what-if.xkcd.com/140/ Proton Moon, Electron Earth].&lt;br /&gt;
# As to what happens to Unstoppable Force and Immovable Object: this boils down into &amp;quot;What happens if two infinitely strong objects try to push each other in opposite directions&amp;quot;. Both of them have same power (infinite), same mass (infinite), same energy (infinite). In turn, this boils down to &amp;quot;Infinity minus Infinity&amp;quot;; the &amp;quot;(+∞) + (-∞)&amp;quot;, &amp;quot;(+∞) / (+∞)&amp;quot; and &amp;quot;(-∞) / (-∞)&amp;quot; are undefined, like &amp;quot;x / 0&amp;quot; is. Therefore, formulas for calculating collision of finite objects don't apply; instead, something incomprehensible happens - likely ripping apart Laws Of Physics themselves and crashing The Universe.&lt;br /&gt;
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Correct me if i made mistakes. --[[User:SMGmsgsgd|SMGmsgsgd]] ([[User talk:SMGmsgsgd|talk]]) 09:59, 8 August 2025 (UTC)&lt;/div&gt;</summary>
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		<title>Talk:3084: Unstoppable Force and Immovable Object</title>
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&lt;div&gt;&amp;lt;!-- Please sign your posts with ~~~~ and don't delete this text. New comments should be added at the bottom. --&amp;gt;&lt;br /&gt;
lol, i remember this explanation from a minutephysics video. however, the version of the problem i heard, which is actually paradoxical, is &amp;quot;what happens when an immovable object meets an '''irresistible''' force?&amp;quot; [[User:Not without text|Not without text]] ([[User talk:Not without text|talk]]) 00:03, 3 May 2025 (UTC)&lt;br /&gt;
:That was also literally my first thought. [[169]], anyone? --[[User:Coconut Galaxy|Coconut Galaxy]] ([[User talk:Coconut Galaxy|talk]]) 05:37, 3 May 2025 (UTC)&lt;br /&gt;
::How do connect this comic with [[169: Words that End in GRY]]? I see no connection! --[[User:Kynde|Kynde]] ([[User talk:Kynde|talk]]) 16:43, 4 May 2025 (UTC)&lt;br /&gt;
:::Communicating poorly and then acting smug. --[[User:Coconut Galaxy|Coconut Galaxy]] ([[User talk:Coconut Galaxy|talk]]) 11:52, 5 May 2025 (UTC)&lt;br /&gt;
:The MinutePhysics video: [https://nebula.tv/videos/minute-physics-immovable-object-vs-unstoppable-force-which-wins/ on Nebula] or [https://youtu.be/9eKc5kgPVrA on YouTube] --[[User:NeatNit|NeatNit]] ([[User talk:NeatNit|talk]]) 09:55, 3 May 2025 (UTC)&lt;br /&gt;
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Come on, it's just an arrow made of W- bosons, right? [[User:TheTrainsKid|TheTrainsKid]] ([[User talk:TheTrainsKid|talk]]) 03:22, 3 May 2025 (UTC)&lt;br /&gt;
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Is there no joke here? Is it just the solution? [[User:Broseph|Broseph]] ([[User talk:Broseph|talk]]) 06:52, 3 May 2025 (UTC)&lt;br /&gt;
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I remember an explanation by Isaac Asimov in one of his books which was like &amp;quot;by definition, an immovable object will not move at all under any force in the universe, and an unstoppable force will move all of the objects in this way&amp;quot; and then explained how the definitions conflicted each other and as such prevented both from being able to register for the hypothetical at the same time [[Special:Contributions/172.64.236.161|172.64.236.161]] 06:55, 3 May 2025 (UTC)&lt;br /&gt;
&lt;br /&gt;
In the first MMO games, collision was a big problem. A player could block a doorway, and nobody else could go through. It was even worse if the player had &amp;quot;follower&amp;quot; characters or pets.&lt;br /&gt;
One solution was to have characters automatically &amp;quot;push&amp;quot; stationary characters out of the way, but that caused other problems. Modern MMO's such as World of Warcraft simply allow characters to pass through each other, as depicted in this xkcd comic. Our eyes fool us into &amp;quot;seeing&amp;quot; that two characters somehow slid past each other. [[Special:Contributions/172.68.228.132|172.68.228.132]] 07:29, 3 May 2025 (UTC)&lt;br /&gt;
:Our eyes, or the programmers?  I don't have that much experience with MMO's but they probably do render it in specific way to make that effect. -- [[User:Hkmaly|Hkmaly]] ([[User talk:Hkmaly|talk]]) 02:59, 4 May 2025 (UTC)&lt;br /&gt;
::It's been a few years since I played WoW, but at that time there wasn't anything hiding the fact that the characters were clipping through each other. although I'm not sure what the other poster was talking about being fooled &amp;quot;into 'seeing' that two characters somehow slid past each other&amp;quot; since to me it always looked like two characters passed right through each other.[[Special:Contributions/172.70.126.111|172.70.126.111]] 20:31, 6 May 2025 (UTC)&lt;br /&gt;
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When the two things pass through each other, at the instant where they both occupy exactly the same space, is there one object or two? [[Special:Contributions/162.158.216.159|162.158.216.159]] 08:02, 3 May 2025 (UTC)&lt;br /&gt;
:Given that force is not an object, one. Just like there was when they weren't colocated. [[Special:Contributions/172.69.43.220|172.69.43.220]] 08:29, 3 May 2025 (UTC)&lt;br /&gt;
::OK, but what about the 'unstoppable force carrying particles' in the title text? [[Special:Contributions/172.69.194.204|172.69.194.204]] 19:00, 3 May 2025 (UTC)&lt;br /&gt;
:::I understand it as if a particle interacting with the object counts as 'stopping', in which case an unstoppable force-carrying particle wont have any effect. --[[Special:Contributions/162.158.120.157|162.158.120.157]] 20:40, 3 May 2025 (UTC)&lt;br /&gt;
:Two, if you're counting particles as &amp;quot;objects&amp;quot;. At the level of particle interactions, two particles aren't merely distinguished by their spatial extent, but also by all their other &amp;quot;quantum numbers&amp;quot; -- charge, flavor, and others. You can absolutely have two particles, even two fermions, that have exactly the same wavefunction in space, but are distinguished by differing in other ways. (And in practice, something like this would be a fermion and a boson anyway.) [[User:Linkhyrule5|Linkhyrule5]] ([[User talk:Linkhyrule5|talk]]) 06:24, 6 May 2025 (UTC)&lt;br /&gt;
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The force could simply go around the object. The object hasn't moved, and the force wasn't stopped. [[User:Rtanenbaum|Rtanenbaum]] ([[User talk:Rtanenbaum|talk]]) 11:17, 3 May 2025 (UTC)&lt;br /&gt;
:Redirecting would imply the force could be redirected, allowing us to trap it inside a closed loop, effectively stopping it. [[Special:Contributions/172.70.57.132|172.70.57.132]] 15:38, 3 May 2025 (UTC)&lt;br /&gt;
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This is like the Chinese saying the spear and the shield. Using this comic, I guess spear wins [[User:Aprilfoolsupdate!|Aprilfoolsupdate!]] ([[User talk:Aprilfoolsupdate!|talk]]) 14:02, 3 May 2025 (UTC)&lt;br /&gt;
&lt;br /&gt;
Gonna be honest, I think this is my least favorite comic of the last 500 or so. It's a solution already given by minutephysics, except with all the perspective about reference frames, and what people actually mean with these terms replaced by a caption with a superiority complex. I suppose it gets pretty hard 3000 comics in, but c'mon.&lt;br /&gt;
[[Special:Contributions/172.68.35.83|172.68.35.83]] 19:18, 3 May 2025 (UTC)&lt;br /&gt;
:''--Comment by [[User:Darth Vader|Darth Vader]] ([[User talk:Darth Vader|talk]]) 22:07, 3 May 2025 (UTC) deleted--''&lt;br /&gt;
:: Ok, as we're giving personal opinions, I can't let it stand. Some might not exactly be total belly-laughs, but I think they each still have something to them and I prefer a mix of tones (and a wider spatter of focuses and treatments) to them all being exactly the same aspect of 'high-humour'. Not that I'd care to rank them, anyway, but I'm nowhere near ready to go off and make disparaging comments as if this site was bitchaboutxkcd.com, or whatever.&lt;br /&gt;
:: I won't try to tell you what to think, yourself, though maybe you should just roll with it. If you really don't like a comic, there'll be another along in two or three days. That might be even 'worse', as well as 'better', but then you can be even more unchill about ''that''. [[Special:Contributions/141.101.98.82|141.101.98.82]] 22:45, 3 May 2025 (UTC)&lt;br /&gt;
&lt;br /&gt;
All forces are irresistable. No objects are immovable. If any force acts on any object, the object moves (or deforms). [[Special:Contributions/172.68.84.145|172.68.84.145]] 22:22, 3 May 2025 (UTC)&lt;br /&gt;
:Can we not say that Dark Matter, if that's what we imagine it might be, entirely resists the electromagnetic force? (It's one of my possible interpretations of the comic, though without enough hint that it was intended to have me annotate the Explanation accordingly.)&lt;br /&gt;
:That said, it's ''unstoppable'' force (and there's are no Cavorite-like forceproof barriers), and it's rather that ''immovable'' objects are awkward to imagine under Relativity and there being no actual preferable frame of reference in the first place. [[Special:Contributions/172.69.195.113|172.69.195.113]] 22:50, 3 May 2025 (UTC)&lt;br /&gt;
&lt;br /&gt;
I would say that, since a force is mass*acceleration, the force cannot yet be stated while passing through the immovable object, because the object have to accelerate to calculate the force. Therefore, the &amp;quot;force&amp;quot; is only potential or kinetic energy at this point.[[Special:Contributions/162.158.127.25|162.158.127.25]] 12:54, 4 May 2025 (UTC)&lt;br /&gt;
&lt;br /&gt;
I would say that nothing happens. If you think of Pressure and immoveable object: An infinite force would acting on an immoveable (think infinite mass) object would lead to no movement at all.&lt;br /&gt;
Well, actually a black hole would be created, swallowing up the object and the force. Since the object's further behavior now cannot be seen from outside mass could be reduced anf the black hole could simply evaporate.&lt;br /&gt;
Result: Force and objects actual mass would simply be converted into energy, representing a bomb. [[Special:Contributions/104.23.187.224|104.23.187.224]] 16:42, 4 May 2025 (UTC)&lt;br /&gt;
&lt;br /&gt;
Did someone pull out ChatGPT again for this explanation? The claim that the humor derives from the contrast between the casual meaning of &amp;quot;force&amp;quot; and its meaning in physics is ridiculous and patently false. A &amp;quot;force&amp;quot; in physics doesn't have a physical position to begin with and so it can't &amp;quot;pass through&amp;quot; anything. At this point I really feel like there should be some kind of policy on writing explanations using LLMs like ChatGPT because it almost never adds anything of value and it just complicates the explanation and makes the process of ''real'' people digging into the actual meaning and themes more difficult.[[Special:Contributions/172.71.102.223|172.71.102.223]] 18:45, 4 May 2025 (UTC)&lt;br /&gt;
:Looking at what it replaced, it was an improvement, if not described as well as I think it should be. I believe it means to talk of the flux from a point-originated field (e.g. the most common fields normally deplete by inverse-square rule, all the way to infinity, from the point(s) of origin, though nuclear forces are... different).&lt;br /&gt;
:Given the depiction of the &amp;quot;unstoppable force&amp;quot; as actually 'moving', it has to be looked at as some kind of propagating pulse of 'forceness', albeit one that does not interact with the object seen as in its path (which would therefore neither react to the 'force' nor attenuate its potential effects). But that might need to be said in similarly short fashion (if my interpretation is even agreed with). Good luck! [[Special:Contributions/172.70.162.52|172.70.162.52]] 20:47, 4 May 2025 (UTC)&lt;br /&gt;
:Agree! The physical explanation of force is plainly wrong in the explanation text. Sebastian --[[Special:Contributions/172.68.110.207|172.68.110.207]] 23:18, 4 May 2025 (UTC)&lt;br /&gt;
&lt;br /&gt;
Could the objects be ''in front'' of each other instead of colliding? {{unsigned|Dardafus1|18:00, 5 May 2025}}&lt;br /&gt;
:Not both at the same time... [[Special:Contributions/172.69.224.82|172.69.224.82]] 19:49, 5 May 2025 (UTC)&lt;br /&gt;
&lt;br /&gt;
I contemplated this years ago while watching a {{w|Newton's cradle}}, and I came to the conclusion that the irresistible force would transform into an immovable object, and the immovable object would transform into an irresistible force.  But honestly, a variation of what he proposes also makes sense, that the immovable object would conduct the irresistible force and retransmit it out the other side.  The {{w|Black box}} view of the interaction would be the same either way.  [[User:SammyChips|SammyChips]] ([[User talk:SammyChips|talk]]) 20:07, 6 May 2025 (UTC)&lt;br /&gt;
:Except an '''irresistible''' force is different from an unstoppable one: if the force is irresistible, the force must have an effect on the object. I guess I could see how retransmitting the force would be a type of effect, but it's a bit of a stretch. [[User:Not without text|Not without text]] ([[User talk:Not without text|talk]]) 14:09, 15 May 2025 (UTC)&lt;br /&gt;
&lt;br /&gt;
Basically, these Unstoppable Force and Immovable Object there are '''''incorporeal'''''; they don't interact with anything. Like Neutrinos; any material object phases though them. As such, they are practically useless and pathetically weak. So i could try to predict, what happens when two '''''corporeal''''' Unstoppable Force and Immovable Object collide:&lt;br /&gt;
# By '''''corporeal''''', i mean: they interact with objects, and can't &amp;quot;phase through&amp;quot;. If they collide with something, they crush and displace objects. And no matter how much you throw at them, they don't get damaged and don't get displaced. As such, they're infinitely durable, infinitely strong, and therefore infinitely massive. All that is assuming that they're '''absolutely, 100%''' Unstoppable and Immovable (and not merely &amp;quot;very strong but finite&amp;quot;).&lt;br /&gt;
# They collide with each other. They try to displace each other, but can't because they're infinitely massive. They try to crush each other, but can't because they're infinitely durable. Since efficiency of this process is not 100% and involves 2 infinitely strong objects, the waste energy (e.g. heat, sound, etc) and object's gravity ends up destroying the entire Universe, a-la [https://what-if.xkcd.com/140/ Proton Moon, Electron Earth].&lt;br /&gt;
# As to what happens to Unstoppable Force and Immovable Object: this boils down into &amp;quot;What happens if two infinitely strong objects try to push each other in opposite directions&amp;quot;. Both of them have same power (infinite), same mass (infinite), same energy (infinite). In turn, this boils down to &amp;quot;Infinity minus Infinity&amp;quot;; the &amp;quot;(+∞) + (-∞)&amp;quot;, &amp;quot;(+∞) / (+∞)&amp;quot; and &amp;quot;(-∞) / (-∞)&amp;quot; are undefined, like &amp;quot;a / 0&amp;quot; is. Therefore, formulas for calculating collision of finite objects don't apply; instead, something incomprehensible happens - likely ripping apart Laws Of Physics themselves and crashing The Universe.&lt;br /&gt;
&lt;br /&gt;
Correct me if i made mistakes. --[[User:SMGmsgsgd|SMGmsgsgd]] ([[User talk:SMGmsgsgd|talk]]) 09:59, 8 August 2025 (UTC)&lt;/div&gt;</summary>
		<author><name>SMGmsgsgd</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=3109:_Dehumidifier&amp;diff=381705</id>
		<title>3109: Dehumidifier</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=3109:_Dehumidifier&amp;diff=381705"/>
				<updated>2025-07-23T12:23:23Z</updated>
		
		<summary type="html">&lt;p&gt;SMGmsgsgd: /* Explanation */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 3109&lt;br /&gt;
| date      = June 30, 2025&lt;br /&gt;
| title     = Dehumidifier&lt;br /&gt;
| image     = dehumidifier_2x.png&lt;br /&gt;
| imagesize = 295x327px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = It's important for devices to have internet connectivity so the manufacturer can patch remote exploits.&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
{{incomplete|This page was created WITHOUT INTERNET ACCESS. Don't remove this notice too soon.}}&lt;br /&gt;
&lt;br /&gt;
In this comic, [[Randall]] mocks the recent trend of various appliances, such as stoves and juicers, being connected to the internet even though one would expect them to be able to function without an internet connection. A {{w|dehumidifier}} removes moisture from the air. There are no obvious ways to improve dehumidifier operation without changes to its hardware. Modern machines are incapable of self-modifying their hardware &amp;quot;on the fly&amp;quot; - requiring electronic or mechanic intervention to modify, which doesn't require the machine to have internet connection. Practical self-modifying machines would, likely, require practical inorganic nanorobots to construct. Thus it's unclear what benefit being able to receive updates via the internet would confer. [[Cueball]]'s sarcastic reply underlines the unlikeliness of a situation occurring where an update would be necessary. The implication is that many of these internet-connected devices are examples of over-engineering a solution to do things 'because we can' or because it makes it sound advanced and therefore more desirable to the customer, rather than because it offers any real added value.&lt;br /&gt;
&lt;br /&gt;
Dehumidifiers ''can'' provide information which might be useful to access remotely. For instance, it might be helpful to know the level of water in the storage tank (which must be emptied when full), the percent of time the humidifier is paused for de-icing, a log of the humidity level over time, and whether the humidity exceeds a certain limit (which could indicate dehumidifier malfunction, or that the dehumidifier is inadequate to the conditions), though how actionable and urgent this information would be is debatable. A local wireless network connected via WiFi is a reasonable way to send this information to a user or to other local devices.  &lt;br /&gt;
&lt;br /&gt;
However, many devices like this now offer, or even require, connections to a special app or to the internet. They typically connect to servers run by the device's manufacturer. When that server goes away, the devices may stop working.&lt;br /&gt;
&lt;br /&gt;
The title text says that authorized internet access is required to patch remote {{w|Exploit (computer security)|exploits}} (i.e., harmful unauthorized access from the internet). If this is the only use case that requires internet access, it would be much simpler to remove the {{w|attack vector}} for remote exploits by not having it connected to the internet in the first place. The most likely source of remote access would probably be the remote updater itself. However, there are proofs-of-concept of devices being hacked through acoustic-based or light-based attacks (possibly through hacked speakers or even from outside the house), and a patch could possibly circumvent those attacks.&lt;br /&gt;
&lt;br /&gt;
&amp;quot;New kind of water&amp;quot; could refer to {{w|heavy water}}, {{w|tritiated water}}, {{w|doubly labeled water}}, {{w|hydronium}}, {{w|semiheavy water}}, {{w|deuterium-depleted water}}, or something which isn't detected/invented yet. However, dehumidifier is not supposed to remove it - so unless its hardware is modified, its effectiveness is questionable. It is also very hard to imagine a situation, in which vapors of &amp;quot;new kind of water&amp;quot; would end up in house in significant quantities; such &amp;quot;new waters&amp;quot; can cause irritation with minor residual injuries - being too weak to use as chemical weapons, yet too dangerous to be found in ordinary house - and such &amp;quot;new kinds of water&amp;quot; are mostly found in nuclear reactor facilities, having no everyday use for household, and don't appear naturally.&lt;br /&gt;
&lt;br /&gt;
Yet there ''is'' a method, which could allow to get positive results from built-in computer and WI-FI: {{tvtropes|NotTheIntendedUse|gaining unrestricted access to device's internal computer}} (anything capable of running ''{{w|Doom_(1993_video_game)|Doom}}'' and/or participating in &amp;quot;{{w|Mirai (malware)|Mirai}}&amp;quot; botnet does have a computer inside), possibly via undocumented features or hacking. For example, to connect all household appliances into single distributed computation network, which could do useful computations (E.G. host a site; calculate chemical/biological reactions; mine cryptocurrency; initiate DDOS-attacks; run arbitrary programs; be used as ersatz PC; etc). Their inner data storage (flash drive, hard drive, etc) could be used to store all sorts of files, as extra disk space or for confidential data (since household appliances aren't ''meant'' to store arbitrary data or run arbitrary programs, they're unlikely to be attacked or searched). Some devices conenct through the {{w|cellular network}}, or similarly independent communications with the manufacturer/vendor/supplied, and so may accordingly have some form of connection that is entirely independent of your own household internet. If they have this ''and'' the ability to establish a local wifi connection, this could result in several unanticipated connotations for the user and/or provider. They should have access to variety of interesting places (e.g. the servers of their manufacturer, from which they download updates and to which send error messages). The problem with this, is that &amp;quot;smart&amp;quot; appliances are often comparable or weaker than micro-PCs (like &amp;quot;{{w|Raspberry Pi|Pi}}&amp;quot; variants) &amp;amp;mdash; while often costing more, than combination of normal appliance and Pi micro-PC &amp;amp;mdash; making such devices not viable for computations, unless either user ''already'' has smart devices in his house, or device has abnormally high computing power for it's job due to over-engineering (some multifunction printers may have storage capacities ranging from significant fractions of gigabytes up to terabytes, as a means of buffering documents being [[2369: All-in-One|scanned/printed]]).&lt;br /&gt;
&lt;br /&gt;
A related device was previously referred to in [[3044: Humidifier Review]], and the issue of possibly considering online protection of devices that (arguably) should not be so easily exploitable was looked at in [[463: Voting Machines]] and [[1966: Smart Home Security]]. Comic [[1912: Thermostat]] also deals with risks of adding computers to appliances.&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
: [A store salesman, Hairy, is showing Cueball a dehumidifier with a &amp;quot;SALE&amp;quot; label on it. Several other unidentified devices, possibly other dehumidifier models, are shown in the store as well.]&lt;br /&gt;
&lt;br /&gt;
: Hairy: This dehumidifier model features built-in WiFi for remote updates.&lt;br /&gt;
: Cueball: Great! That will be really useful if they discover a new kind of water.&lt;br /&gt;
&lt;br /&gt;
==Trivia==&lt;br /&gt;
&lt;br /&gt;
Technically there are many different kinds of liquid water, based on the possible isotopes of hydrogen and oxygen atoms that its molecules are composed of. One of the most well known is {{w|heavy water}}, deuterium oxide, that is sometimes used in nuclear devices. There are 3 naturally-occurring {{w|isotopes of hydrogen}}&amp;lt;!-- including one of 'trace' quantities--&amp;gt;, with 6 possible combinations for its two atoms in a water molecule, and 4 naturally-occurring {{w|isotopes of oxygen}}&amp;lt;!-- including one of 'trace' quantities--&amp;gt;. This gives 6 × 4 = 24 kinds of naturally-occurring water molecules, which could be present in liquid water in any proportions. In ordinary water as found under mundane circumstances on Earth, 99.7% of all such molecules&amp;lt;!-- based upon given prevalences --&amp;gt; will be the 'normal' version of water: two atoms of &amp;lt;sup&amp;gt;1&amp;lt;/sup&amp;gt;H and one atom of &amp;lt;sup&amp;gt;16&amp;lt;/sup&amp;gt;O. (The isotopic ratios in &amp;quot;natural&amp;quot; water are relatively stable, so there's very little variation in water found in nature.) There are also synthetic isotopes of each, all radioactive, most having short half-lives&amp;lt;!-- as are the two 'trace' Hydrogen and Oxygen ones, so maybe it should be 2x3=6 kinds of stable water..?--&amp;gt;. How many of these could be used to constitute water would depend in part on one's definition of whether a molecule of water could be said to have been formed prior to the decay of its constituent atoms. Each isotopically-distinct version of water has very slightly different physical and chemical properties, though the differences are small and the versions hard to separate. (Separation is further complicated by the extremely rapid rate with which molecules in liquid water {{w|Grotthuss mechanism|exchange hydrogen ions (protons)}} between themselves.) The differences would not be at all important to a consumer-grade dehumidifier.&lt;br /&gt;
&lt;br /&gt;
As of when this comic was posted, there are also 26 known {{w|phases of ice}} (solid water), each of which could be made from any combination of the isotopically-distinct versions of water in any proportions. These might count as different &amp;quot;kinds of water&amp;quot;, and one was discovered in 2025; others may yet be discovered. Only one of these phases, Ice I&amp;lt;sub&amp;gt;h&amp;lt;/sub&amp;gt;, is likely to be found on an iced-over dehumidifier under normal conditions of use.&lt;br /&gt;
&lt;br /&gt;
In the {{w|Twin Earth thought experiment}}, there exists a second Earth (called Twin Earth), in every way identical to ours, except that there is no water as we know it. Instead, there is XYZ, a substance that is chemically distinct from water, but is experientially identical to water, and referred to by the inhabitants of Twin Earth as &amp;quot;water&amp;quot;. Surprisingly, this dehumidifier might be useful, if the manufacturer was also planning to sell it on Twin Earth.&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&amp;lt;noinclude&amp;gt;&lt;br /&gt;
[[Category: Comics featuring Cueball]]&lt;br /&gt;
[[Category: Comics featuring Hairy]]&lt;br /&gt;
[[Category: Internet]]&lt;/div&gt;</summary>
		<author><name>SMGmsgsgd</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=495:_Secretary:_Part_2&amp;diff=381035</id>
		<title>495: Secretary: Part 2</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=495:_Secretary:_Part_2&amp;diff=381035"/>
				<updated>2025-07-09T07:29:47Z</updated>
		
		<summary type="html">&lt;p&gt;SMGmsgsgd: /* Explanation */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 495&lt;br /&gt;
| date      = October 28, 2008&lt;br /&gt;
| title     = Secretary: Part 2&lt;br /&gt;
| image     = secretary part 2.png&lt;br /&gt;
| titletext = That helmet won't save him.&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
Whenever something big happens, the media likes to have at least two things: interviews with people who are the news, and on-the-scene reporters. In this case, [[Blondie]] as a [[:Category:News anchor|news anchor]] is shown to begin with talking about [[Black Hat]], and she has even been out at his house. Even if those reporters are simply standing in front of a building that something happened in, they have to be on-scene. To thwart the media (and probably everyone else), Black Hat has built a {{w|moat}} around his apartment building. The second reporter is on-the-scene from the Internet, or rather, one of its darkest corners: {{w|4chan}}. In more detail, 4chan is a collection of image boards that act somewhat like forums, where users go to share images. The different boards are named by their &amp;quot;folder&amp;quot; structure, for lack of a better term. Therefore, the name /b/ comes from its URL: 4chan.org/b/. Pronounced &amp;quot;slash bee&amp;quot; (because the second forward slash is not necessary), /b/ is the &amp;quot;random&amp;quot; board, where anything goes, where anything is the superset of all sets, as in anything. Absolutely. Anything. As in, going more than two seconds without seeing pornographic content or hateful slurs is almost unheard of. /b/ is also the one that gets the most publicity, because it has started many of the {{w|meme}}s [http://knowyourmeme.com/] on the Internet, as well as the birthplace of {{w|Anonymous (group)|Anonymous}}. The chaotic nature of the forums explains why the title text suggests that the reporter isn't safe, even though he is wearing a helmet. In fact, a goofy helmet like that is liable to get the trolls on him faster than if he didn't have it (though with that helmet, he could try to pass as /k/ weapons fan, if only he had a gun). This may be a {{w|Densha Otoko}}[https://en.wikipedia.org/wiki/Densha_Otoko_(TV_series)] reference, which features helmet-wearing /b/ members.&lt;br /&gt;
&lt;br /&gt;
A {{w|haberdasher}} is a person who sells small articles of clothing that have been or can be sewed. This could be a reference to former President {{w|Harry S. Truman}}, who operated a failed haberdashery in the early 1920s. &lt;br /&gt;
&lt;br /&gt;
This series was released on five consecutive days (Monday to Friday) and not over the usual schedule of three comics a week. It may be a continuation of the comic [[493: Actuarial]], in which Black Hat demonstrates great power over even Internet trolls via his sociopathic ways. This would explain why Black Hat was nominated as Internet secretary. These are all the comics in [[:Category:Secretary|Secretary series]]:&lt;br /&gt;
* [[494: Secretary: Part 1]]&lt;br /&gt;
* [[495: Secretary: Part 2]]&lt;br /&gt;
* [[496: Secretary: Part 3]]&lt;br /&gt;
* [[497: Secretary: Part 4]]&lt;br /&gt;
* [[498: Secretary: Part 5]]&lt;br /&gt;
&lt;br /&gt;
[[Ron Paul]] is a man who was a U.S. Representative for Texas at the time. At the time the comic was published, he was running, for the second time, for {{w|President of the United States}}. Ron Paul's 2008 presidential campaign did, in fact, use a {{w|blimp}} that was named the {{w|Ron Paul presidential campaign, 2008#Ron Paul Blimp|Ron Paul Blimp}}. However, despite their elegant appearance, blimps are not a fast way to travel.&lt;br /&gt;
&lt;br /&gt;
The images on the /b/ board behind the reporter are:&lt;br /&gt;
*[https://youtu.be/ZWwMre0PuTQ &amp;quot;'''A'''yyy&amp;quot;], a common exclamation by the character {{w|Fonzie}} from the TV show ''{{w|Happy Days}}'', usually while giving {{w|Thumb signal|two thumbs up}}.&lt;br /&gt;
*{{w|/b/|/'''b'''/}}, the &amp;quot;random&amp;quot; {{w|Internet forum|discussion board}} on 4chan.&lt;br /&gt;
*A {{w|Compact disc|'''C'''ompact '''D'''isc}} (or &amp;quot;CD&amp;quot;), a plastic disc for {{w|Optical disc|optical}} {{w|Data storage|data storage}}.&lt;br /&gt;
*[https://knowyourmeme.com/memes/epic-fail-guy '''E'''pic '''F'''ail '''G'''uy], a {{w|Internet meme|meme}} that originated on 4chan, of a {{w|Stick figure|stick-figure}} character (often wearing a {{w|Guy Fawkes mask}}) who fails at everything he tries.&lt;br /&gt;
Together, the initial letters of these items spell out &amp;quot;'''ABCDEFG'''&amp;quot;.&lt;br /&gt;
&lt;br /&gt;
The title text states that the second reporter (Tom)'s helmet won't help him, the implication being 4chan is such a dangerous place that body armor is woefully ineffective.&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
:[Blondie as a news anchor sitting behind a desk is reading from a paper she holds in her hands. There is a picture of Black Hat on a screen behind her. There is a caption below the picture.]&lt;br /&gt;
:Blondie: Breaking news—the President has made a nomination to the new post of Internet Secretary. We know little about the man, shown here.&lt;br /&gt;
:Caption: Possibly a haberdasher?&lt;br /&gt;
&lt;br /&gt;
:[Blondie keeps talking over a scene showing her standing with a microphone in front of a water-filled moat that has been dug between the road and a house. A small stair up to the house is just on the other side of the moat. Behind her is Cueball with a large TV camera on his shoulder pointing towards her and the house.]&lt;br /&gt;
:Blondie (narrating): Attempts to reach the nominee at home were unsuccessful.&lt;br /&gt;
:Blondie: What the hell kind of apartment has a moat?&lt;br /&gt;
&lt;br /&gt;
:[Back to Blondie behind her desk, the paper is gone, and she leans one arm on the desk. There is no screen behind her.]&lt;br /&gt;
:Blondie: To understand the culture from which he came — and which he may soon administer — we sent a reporter to what we're told is the source of that culture. &lt;br /&gt;
:Blondie: Tom?&lt;br /&gt;
&lt;br /&gt;
:[This panel is much larger than the three previous panels and partly hidden behind the last. Tom, looking like Cueball with a military helmet with camouflage marks strapped under his chin, holds a large microphone in front of him while standing in front of a large screen. The screen shows a message board with four picture posts. Each picture has a text to the right, but those are unreadable scribbles. The top drawing is of a man with wild hair who holds out his hands with thumbs up. The next is text. Then there is a circle with a smaller circle in the middle and at the bottom what appears to be a Cueball-like man with a fencing mask. Blondie still speaks to him from off-panel left.]&lt;br /&gt;
:Tom: I'm coming to you live from the 4chan /b/ board. Despite the tube cloggage, nascent memes are flying fast and furious.&lt;br /&gt;
:Blondie (off-panel): Why are you wearing a helmet, Tom?&lt;br /&gt;
:Tom: I'm not sure.&lt;br /&gt;
:Image with text only: /b/ &lt;br /&gt;
&lt;br /&gt;
:[Ponytail is sitting in front of a large control unit using the two levers coming out of it from below two buttons that are again below the lit screen. A voice comes from off-panel left. Above the top of the panels frame, there is a frame with a caption:]&lt;br /&gt;
:Meanwhile in Ron Paul's blimp.&lt;br /&gt;
:Ron Paul (off-panel): Ahoy! What news of the blogs?&lt;br /&gt;
&lt;br /&gt;
:[Zoom out showing Ponytail, who has turned around on her office chair away from the controls towards Ron Paul drawn like Cueball but with a cane. She holds up a piece of paper with a small square insert visible at the top. Apart from that, it is white.]&lt;br /&gt;
:Ponytail: Dr. Paul! The President's named his nominee!&lt;br /&gt;
:Ron Paul: It's not me?&lt;br /&gt;
&lt;br /&gt;
:[Ron Paul's blimp is shown from the outside. His voice can be seen coming from the airship. There is text on the blimp, with the four letters after the first written mirrored to spell another word.]&lt;br /&gt;
:Ron Paul (from inside the blimp): Wait! I remember that guy from the campaign! He's a notorious troll!&lt;br /&gt;
:Blimp: &lt;br /&gt;
::Ron Paul &lt;br /&gt;
::RƎVO⅃UTION&lt;br /&gt;
&lt;br /&gt;
:[Back inside the blimp, Ron Paul points to Ponytail, while his other hand is lifted to his chin. His cane leans against his legs. Ponytail looks at him from her chair, the paper now held in her lap.]&lt;br /&gt;
:Ron Paul: They mustn't put him in charge. Quick, call the capitol!&lt;br /&gt;
&lt;br /&gt;
:[Ponytail turns around on her chair towards the controls and takes hold of one of the sticks. Ron Paul has taken the cane in his hand again.]&lt;br /&gt;
:Ponytail: Can't, sir. The tubes just went down completely.&lt;br /&gt;
:Ron Paul: Blast!&lt;br /&gt;
&lt;br /&gt;
:[Ponytail now holds onto both sticks as Ron Paul lifts his cane up into the air pointing away from her up and right.]&lt;br /&gt;
:Ron Paul: Then we'll go ourselves. Full speed ahead!&lt;br /&gt;
&lt;br /&gt;
:[A full view of the blimp hanging in the air to the left over a broad landscape. There seems to be a small lake just in front of the blimp. The horizon is shown all along this full width panel, and after the lake, there are five small mountain peaks, two behind the three in front. After the last of these, there follow one more peak and a small mound. Features are shown on the ground. In the air in front of the blimp, there are a small cloud inside the panel at the end of the lake and a large cloud breaking the upper frame over the end of the five mountains stretching over the next peak and mound.]&lt;br /&gt;
:Blimp: &lt;br /&gt;
::Ron Paul &lt;br /&gt;
::RƎVO⅃UTION&lt;br /&gt;
&lt;br /&gt;
:[Same image. The blimp has advanced minutely, taking the tip clearly over the lake. Beat panel #1]&lt;br /&gt;
:Blimp: &lt;br /&gt;
::Ron Paul &lt;br /&gt;
::RƎVO⅃UTION&lt;br /&gt;
&lt;br /&gt;
:[Same image. The blimp has advanced minutely again. Beat panel #2]&lt;br /&gt;
:Blimp: &lt;br /&gt;
::Ron Paul &lt;br /&gt;
::RƎVO⅃UTION&lt;br /&gt;
&lt;br /&gt;
:[Same image, but now the two speak from within the blimp. The blimp has again advanced minutely so the gondola below the blimp is now also almost at the edge of the lake.]&lt;br /&gt;
:Ron Paul: I said full speed!&lt;br /&gt;
:Ponytail: It's a blimp, sir.&lt;br /&gt;
:Blimp: &lt;br /&gt;
::Ron Paul &lt;br /&gt;
::RƎVO⅃UTION&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
&lt;br /&gt;
[[Category:Secretary|02]]&lt;br /&gt;
[[Category:Comics sharing name|Secretary]]&lt;br /&gt;
[[Category:Comics featuring Black Hat]]&lt;br /&gt;
[[Category:Comics featuring Blondie]] &lt;br /&gt;
[[Category:Comics featuring Cueball]] &amp;lt;!--Camera guy --&amp;gt;&lt;br /&gt;
[[Category:Comics featuring Ponytail]]&lt;br /&gt;
[[Category:Comics featuring Ron Paul]]&lt;br /&gt;
[[Category:Comics featuring real people]]&lt;br /&gt;
[[Category:News anchor]]&lt;br /&gt;
[[Category:Airships]]&lt;br /&gt;
[[Category:Internet]]&lt;br /&gt;
[[Category:Politics]]&lt;br /&gt;
[[Category:Comics featuring politicians]]&lt;/div&gt;</summary>
		<author><name>SMGmsgsgd</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=494:_Secretary:_Part_1&amp;diff=381021</id>
		<title>494: Secretary: Part 1</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=494:_Secretary:_Part_1&amp;diff=381021"/>
				<updated>2025-07-08T20:41:26Z</updated>
		
		<summary type="html">&lt;p&gt;SMGmsgsgd: /* Explanation */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 494&lt;br /&gt;
| date      = October 27, 2008&lt;br /&gt;
| title     = Secretary: Part 1&lt;br /&gt;
| image     = secretary part 1.png&lt;br /&gt;
| titletext = The blueprints for the Department of the Internet offices call for Ceiling Cat-themed sprinkler heads.&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
The {{w|President of the United States}} is the chief executive of the United States of America.{{Citation needed}} Since this comic was released in October 2008 and the presidential election was in November, it was then unknown which of the candidates would become president by the time the comic was set (Spring 2009). This is why the president in the comic is out-of-panel and therefore not revealed to us. As it would turn out, the president inaugurated in January 2009 was Barack Obama, who has gone on to demonstrate a tactical use of the Internet (including the more frivolous aspects of it) for public relations purposes. The suppositional president in the comic is less savvy.&lt;br /&gt;
&lt;br /&gt;
This series was released on five consecutive days (Monday to Friday) and not over the usual schedule of three comics a week. It may be a continuation of the comic [[493: Actuarial]], in which Black Hat demonstrates great power over even Internet trolls via his sociopathic ways. This would explain why Black Hat was nominated as Internet secretary. These are all the comics in [[:Category:Secretary|Secretary series]]:&lt;br /&gt;
* [[494: Secretary: Part 1]]&lt;br /&gt;
* [[495: Secretary: Part 2]]&lt;br /&gt;
* [[496: Secretary: Part 3]]&lt;br /&gt;
* [[497: Secretary: Part 4]]&lt;br /&gt;
* [[498: Secretary: Part 5]]&lt;br /&gt;
&lt;br /&gt;
The tubes being clogged is a reference to the, now deceased, Alaska Senator {{w|Ted Stevens}} who, during a congressional debate on {{w|net neutrality}}, described the {{w|Internet}} as a {{w|series of tubes}} (be sure to listen to the audio clips in that Wikipedia page, and you'll see why he became a big hit with the Internet). Ted Stevens also gained notoriety for backing a proposal to build a {{w|Gravina Island Bridge|bridge to nowhere}} using federal funds. The question &amp;quot;What are they a-Twitter about now?&amp;quot; refers to the website {{w|Twitter}}, which is a microblogging and social networking site.&lt;br /&gt;
&lt;br /&gt;
The tubes being clogged may also be reference to numerous sites on the Internet - such as &amp;quot;{{w|Tube site}}&amp;quot; (i.e. {{w|Porn 2.0}}); {{w|Youtube}}; various other sites with &amp;quot;tube&amp;quot; in it, mostly video-hostings (e.g. {{w|Rutube}}, {{w|PeerTube}}, {{w|SchoolTube}}, {{w|TeacherTube}}, {{w|TroopTube}}; {{w|DTube}} didn't exist back then). In which case, &amp;quot;we put too much stuff on them&amp;quot; likely means overwhelming amounts of content (e.g. videos, pictures). In that case, it could count as &amp;quot;[https://tvtropes.org/pmwiki/pmwiki.php/Main/AccidentalInnuendo accidental innuendo]&amp;quot;, considering ''what'' &amp;quot;tubes&amp;quot;, &amp;quot;stuff&amp;quot; and overly &amp;quot;restless&amp;quot; bloggers would mean in context of {{w|Porn 2.0}} and [[495: Secretary: Part 2|/b/ board]].&lt;br /&gt;
&lt;br /&gt;
Cats are notorious for being hard to herd, thus the idiom &amp;quot;herding cats,&amp;quot; meaning an extremely difficult task that can very quickly get away from anyone undertaking it. {{w|Lolcats}} are pictures of cats, usually in humorous poses, that have insipid captions on them. The conflation of lolcats and the herding idiom escaped the president (who is presumably somebody not familiar with the former term). The title text refers to [https://knowyourmeme.com/memes/ceiling-cat Ceiling Cat], a lolcat parody of God. As with cats, Bloggers are an ideologically diverse bunch, and they are hard to get to go in a single direction. The proposed &amp;quot;Secretary of the Internet&amp;quot; would likely be a new position on the President's {{w|Cabinet of the United States|Cabinet}}, which currently consists of the heads of 15 executive departments and are, with the one exception of the Attorney General (who heads the Department of Justice), titled &amp;quot;Secretary of ''Department''.&amp;quot;&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
:Spring 2009— The new president faces a crisis...&lt;br /&gt;
:[Cueball is talking to an unseen Mr. President, who is sitting behind a desk.]&lt;br /&gt;
:Cueball: Mr. President, the bloggers are restless.&lt;br /&gt;
:Mr. President: What are they a-twitter about now?&lt;br /&gt;
&lt;br /&gt;
:Cueball: It's the tubes sir. They're clogged. We put too much stuff on them.&lt;br /&gt;
&lt;br /&gt;
:Mr. President: How bad is it?&lt;br /&gt;
:Cueball: The internet could be inoperative within days.&lt;br /&gt;
&lt;br /&gt;
:Cueball: We can't let a crucial resource go unshepherded.&lt;br /&gt;
:Mr. President: Go on.&lt;br /&gt;
&lt;br /&gt;
:Cueball: I recommend you appoint a Secretary of the internet. Someone to impose some orders on this mess.&lt;br /&gt;
&lt;br /&gt;
:Mr. President: Ordering bloggers around? Doesn't sound easy.&lt;br /&gt;
:Cueball: No; it's like herding lolcats.&lt;br /&gt;
:Mr. President: What?&lt;br /&gt;
:Cueball: Nothing.&lt;br /&gt;
&lt;br /&gt;
:Mr. President: Do you have someone in mind for the post?&lt;br /&gt;
:Cueball: I know just the guy.&lt;br /&gt;
&lt;br /&gt;
:Soon:&lt;br /&gt;
:Phone: ''Ring''&lt;br /&gt;
:[Black Hat looks away from his computer at the ringing phone.]&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
&lt;br /&gt;
[[Category:Secretary|01]]&lt;br /&gt;
[[Category:Comics sharing name|Secretary]]&lt;br /&gt;
[[Category:Comics featuring Cueball]]&lt;br /&gt;
[[Category:Comics featuring Black Hat]]&lt;br /&gt;
[[Category:Internet]]&lt;/div&gt;</summary>
		<author><name>SMGmsgsgd</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=494:_Secretary:_Part_1&amp;diff=381020</id>
		<title>494: Secretary: Part 1</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=494:_Secretary:_Part_1&amp;diff=381020"/>
				<updated>2025-07-08T20:33:52Z</updated>
		
		<summary type="html">&lt;p&gt;SMGmsgsgd: /* Explanation */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 494&lt;br /&gt;
| date      = October 27, 2008&lt;br /&gt;
| title     = Secretary: Part 1&lt;br /&gt;
| image     = secretary part 1.png&lt;br /&gt;
| titletext = The blueprints for the Department of the Internet offices call for Ceiling Cat-themed sprinkler heads.&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
The {{w|President of the United States}} is the chief executive of the United States of America.{{Citation needed}} Since this comic was released in October 2008 and the presidential election was in November, it was then unknown which of the candidates would become president by the time the comic was set (Spring 2009). This is why the president in the comic is out-of-panel and therefore not revealed to us. As it would turn out, the president inaugurated in January 2009 was Barack Obama, who has gone on to demonstrate a tactical use of the Internet (including the more frivolous aspects of it) for public relations purposes. The suppositional president in the comic is less savvy.&lt;br /&gt;
&lt;br /&gt;
This series was released on five consecutive days (Monday to Friday) and not over the usual schedule of three comics a week. It may be a continuation of the comic [[493: Actuarial]], in which Black Hat demonstrates great power over even Internet trolls via his sociopathic ways. This would explain why Black Hat was nominated as Internet secretary. These are all the comics in [[:Category:Secretary|Secretary series]]:&lt;br /&gt;
* [[494: Secretary: Part 1]]&lt;br /&gt;
* [[495: Secretary: Part 2]]&lt;br /&gt;
* [[496: Secretary: Part 3]]&lt;br /&gt;
* [[497: Secretary: Part 4]]&lt;br /&gt;
* [[498: Secretary: Part 5]]&lt;br /&gt;
&lt;br /&gt;
The tubes being clogged is a reference to the, now deceased, Alaska Senator {{w|Ted Stevens}} who, during a congressional debate on {{w|net neutrality}}, described the {{w|Internet}} as a {{w|series of tubes}} (be sure to listen to the audio clips in that Wikipedia page, and you'll see why he became a big hit with the Internet). Ted Stevens also gained notoriety for backing a proposal to build a {{w|Gravina Island Bridge|bridge to nowhere}} using federal funds. The question &amp;quot;What are they a-Twitter about now?&amp;quot; refers to the website {{w|Twitter}}, which is a microblogging and social networking site.&lt;br /&gt;
&lt;br /&gt;
The tubes being clogged may also be reference to numerous sites on the Internet - such as &amp;quot;{{w|Tube site}}&amp;quot; (i.e. {{w|Porn 2.0}}); {{w|Youtube}}; various other sites with &amp;quot;tube&amp;quot; in it, mostly video-hostings (e.g. {{w|Rutube}}, {{w|PeerTube}}, {{w|SchoolTube}}, {{w|TeacherTube}}, {{w|TroopTube}}; {{w|DTube}} didn't exist back then). In which case, &amp;quot;we put too much stuff on them&amp;quot; likely means overwhelming amounts of content (e.g. videos, pictures). In that case, it could count as &amp;quot;[https://tvtropes.org/pmwiki/pmwiki.php/Main/AccidentalInnuendo accidental innuendo]&amp;quot;, considering ''what'' &amp;quot;tubes&amp;quot; and &amp;quot;stuff&amp;quot; would mean in context of {{w|Porn 2.0}} and [[495: Secretary: Part 2|/b/ board]].&lt;br /&gt;
&lt;br /&gt;
Cats are notorious for being hard to herd, thus the idiom &amp;quot;herding cats,&amp;quot; meaning an extremely difficult task that can very quickly get away from anyone undertaking it. {{w|Lolcats}} are pictures of cats, usually in humorous poses, that have insipid captions on them. The conflation of lolcats and the herding idiom escaped the president (who is presumably somebody not familiar with the former term). The title text refers to [https://knowyourmeme.com/memes/ceiling-cat Ceiling Cat], a lolcat parody of God. As with cats, Bloggers are an ideologically diverse bunch, and they are hard to get to go in a single direction. The proposed &amp;quot;Secretary of the Internet&amp;quot; would likely be a new position on the President's {{w|Cabinet of the United States|Cabinet}}, which currently consists of the heads of 15 executive departments and are, with the one exception of the Attorney General (who heads the Department of Justice), titled &amp;quot;Secretary of ''Department''.&amp;quot;&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
:Spring 2009— The new president faces a crisis...&lt;br /&gt;
:[Cueball is talking to an unseen Mr. President, who is sitting behind a desk.]&lt;br /&gt;
:Cueball: Mr. President, the bloggers are restless.&lt;br /&gt;
:Mr. President: What are they a-twitter about now?&lt;br /&gt;
&lt;br /&gt;
:Cueball: It's the tubes sir. They're clogged. We put too much stuff on them.&lt;br /&gt;
&lt;br /&gt;
:Mr. President: How bad is it?&lt;br /&gt;
:Cueball: The internet could be inoperative within days.&lt;br /&gt;
&lt;br /&gt;
:Cueball: We can't let a crucial resource go unshepherded.&lt;br /&gt;
:Mr. President: Go on.&lt;br /&gt;
&lt;br /&gt;
:Cueball: I recommend you appoint a Secretary of the internet. Someone to impose some orders on this mess.&lt;br /&gt;
&lt;br /&gt;
:Mr. President: Ordering bloggers around? Doesn't sound easy.&lt;br /&gt;
:Cueball: No; it's like herding lolcats.&lt;br /&gt;
:Mr. President: What?&lt;br /&gt;
:Cueball: Nothing.&lt;br /&gt;
&lt;br /&gt;
:Mr. President: Do you have someone in mind for the post?&lt;br /&gt;
:Cueball: I know just the guy.&lt;br /&gt;
&lt;br /&gt;
:Soon:&lt;br /&gt;
:Phone: ''Ring''&lt;br /&gt;
:[Black Hat looks away from his computer at the ringing phone.]&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
&lt;br /&gt;
[[Category:Secretary|01]]&lt;br /&gt;
[[Category:Comics sharing name|Secretary]]&lt;br /&gt;
[[Category:Comics featuring Cueball]]&lt;br /&gt;
[[Category:Comics featuring Black Hat]]&lt;br /&gt;
[[Category:Internet]]&lt;/div&gt;</summary>
		<author><name>SMGmsgsgd</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=1966:_Smart_Home_Security&amp;diff=380996</id>
		<title>1966: Smart Home Security</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=1966:_Smart_Home_Security&amp;diff=380996"/>
				<updated>2025-07-08T07:00:46Z</updated>
		
		<summary type="html">&lt;p&gt;SMGmsgsgd: /* Explanation */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 1966&lt;br /&gt;
| date      = March 12, 2018&lt;br /&gt;
| title     = Smart Home Security&lt;br /&gt;
| image     = smart_home_security.png&lt;br /&gt;
| titletext = If they're getting valuable enough stuff from you, at least the organized crime folks have an incentive to issue regular updates to keep the appliance working after the manufacturer discontinues support.&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
&lt;br /&gt;
With the proliferation of smart appliances in recent years, there is a growing trend of hackers taking over smart &amp;quot;Internet of Things&amp;quot; devices and adding them to {{w|botnets}}. The hardware is then used for DDOS attacks, crypto mining etc. The &amp;quot;{{w|Mirai (malware)|Mirai}}&amp;quot; botnet, for example, made of over 500,000 compromised routers, refrigerators, TVs, DVRs, baby monitors, thermostats, and webcams, was used in October 2016 to take down DynDNS, one of the core infrastructure providers for the internet in North America.&lt;br /&gt;
&lt;br /&gt;
With the constant potential threat, security updates must be constantly published, and vulnerabilities must be found by the original developers and &amp;quot;{{w|White hat (computer security)|white hat}}&amp;quot; hackers (the faceless team of engineers [[Randall]] describes), before they are found and exploited by &amp;quot;{{w|black hat}}&amp;quot; hackers (not to be confused with [[Black Hat]], though he may be one of them). At any time, these defenders could step down from their jobs, leaving devices defenseless.&lt;br /&gt;
&lt;br /&gt;
The graph shows the various cases of how well things go on the y-axis, compared to how long it has been owned on the x-axis. The probability of compromise briefly dips (indicative of first rounds of security fix updates &amp;amp; the time window when you can easily exchange the product if you find out it's faulty) within the 1st year, then rises: the older a device/software is, the less likely it is to consistently receive security updates for protection, so they are more likely to be hacked, even in the best case. After 10 years, the device/software is most likely outdated and is not being used anymore. Companies then no longer find it profitable to continually update the product. Thus, they pull the support out, even if people are still using the device, leaving customers vulnerable. They may even add in advertisements, intentional slowdowns ({{w|planned obsolescence}}, e.g. Apple's &amp;quot;{{w|Batterygate}}&amp;quot; scandal), or outright disable or remove functionality to &amp;quot;encourage&amp;quot; the purchase of new devices.&lt;br /&gt;
&lt;br /&gt;
The title text suggests that there may be some silver lining to having your device controlled by organized crime professionals: they have a vested interest in keeping your device working well enough that you keep it plugged in. So, the more organized, pragmatic attackers will actually secure it against competing attackers, especially those of a more prankster-like mindset, who would cause more noticeably malicious changes. Advanced malware in the wild does frequently block and evict competing malware, so Randall is probably right. Some IOT malware may thus provide &amp;quot;regular security update services&amp;quot; after the original manufacturers give up, some at a conceivably acceptable cost of a few cents' worth of electrical usage for a crypto-miner. However, it could very easily go horribly wrong, for instance if that miner is hiding by letting a refrigerator run 2°C higher than its outputs allege and using the energy difference to max out the processor on mining operations.&lt;br /&gt;
&lt;br /&gt;
Similar issues are mentioned in [[463: Voting Machines]], and [[3109: Dehumidifier]].&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
:[A graph is shown inside a frame. There is one dotted line going from the middle of the left edge, then dipping slightly before rising slowly at first, then more rapid and finally slowing its ascent down as it nears the top right corner.]&lt;br /&gt;
&lt;br /&gt;
:[Above the frame is the title of the x-axis, and from each end of this text, there is a small line going out and then down, to indicate a time range, which is shown below with four times:]&lt;br /&gt;
:How long you've had your smart appliance&lt;br /&gt;
:6 months &amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp; 1 year &amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp; 5 years &amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp; 10 years&lt;br /&gt;
&lt;br /&gt;
:[Along the left part of the frame there runs a double arrow and at the top and bottom of these arrows there are legends at the top and bottom of the panels height:]&lt;br /&gt;
:Best-case&lt;br /&gt;
:Worst-case&lt;br /&gt;
&lt;br /&gt;
:[Inside the panel there is text above the dotted line to the left, and below the dotted line to the right:]&lt;br /&gt;
:You're constantly being rescued from peril by a faceless team of engineers who could wander away at any time&lt;br /&gt;
&lt;br /&gt;
:Your appliance is part of a botnet run by organized crime&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
&lt;br /&gt;
[[Category:Line graphs]]&lt;br /&gt;
[[Category:Virtual Assistants]]&lt;/div&gt;</summary>
		<author><name>SMGmsgsgd</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=3109:_Dehumidifier&amp;diff=380995</id>
		<title>3109: Dehumidifier</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=3109:_Dehumidifier&amp;diff=380995"/>
				<updated>2025-07-08T06:58:40Z</updated>
		
		<summary type="html">&lt;p&gt;SMGmsgsgd: /* Explanation */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 3109&lt;br /&gt;
| date      = June 30, 2025&lt;br /&gt;
| title     = Dehumidifier&lt;br /&gt;
| image     = dehumidifier_2x.png&lt;br /&gt;
| imagesize = 295x327px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = It's important for devices to have internet connectivity so the manufacturer can patch remote exploits.&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
{{incomplete|This page was created WITHOUT INTERNET ACCESS. Don't remove this notice too soon.}}&lt;br /&gt;
&lt;br /&gt;
In this comic, [[Randall]] mocks the recent trend of various appliances, such as stoves and juicers, being connected to the internet even though one would expect them to be able to function without an internet connection. A {{w|dehumidifier}} removes moisture from the air. There are no obvious ways to improve dehumidifier operation without changes to its hardware. Modern machines are incapable of self-modifying their hardware &amp;quot;on the fly&amp;quot; - requiring electronic or mechanic intervention to modify, which doesn't require the machine to have internet connection. Practical self-modifying machines would, likely, require practical inorganic nanorobots to construct. Thus it's unclear what benefit being able to receive updates via the internet would confer. [[Cueball]]'s sarcastic reply underlines the unlikeliness of a situation occurring where an update would be necessary. The implication is that many of these internet-connected devices are examples of over-engineering a solution to do things 'because we can' or because it makes it sound advanced and therefore more desirable to the customer, rather than because it offers any real added value.&lt;br /&gt;
&lt;br /&gt;
Dehumidifiers ''can'' provide information which might be useful to access remotely. For instance, it might be helpful to know the level of water in the storage tank (which must be emptied when full), the percent of time the humidifier is paused for de-icing, a log of the humidity level over time, and whether the humidity exceeds a certain limit (which could indicate dehumidifier malfunction, or that the dehumidifier is inadequate to the conditions), though how actionable and urgent this information would be is debatable. A local wireless network connected via WiFi is a reasonable way to send this information to a user or to other local devices.  &lt;br /&gt;
&lt;br /&gt;
However, many devices like this now offer, or even require, connections to a special app or to the internet. They typically connect to servers run by the device's manufacturer. When that server goes away, the devices may stop working.&lt;br /&gt;
&lt;br /&gt;
The title text says that authorized internet access is required to patch remote {{w|Exploit (computer security)|exploits}} (i.e., harmful unauthorized access from the internet). If this is the only use case that requires internet access, it would be much simpler to remove the {{w|attack vector}} for remote exploits by not having it connected to the internet in the first place. The most likely source of remote access would probably be the remote updater itself. However, there are proofs-of-concept of devices being hacked through acoustic-based or light-based attacks (possibly through hacked speakers or even from outside the house), and a patch could possibly circumvent those attacks.&lt;br /&gt;
&lt;br /&gt;
&amp;quot;New kind of water&amp;quot; could refer to {{w|heavy water}}, {{w|tritiated water}}, {{w|doubly labeled water}}, {{w|hydronium}}, {{w|semiheavy water}}, {{w|deuterium-depleted water}}, or something which isn't detected/invented yet. However, dehumidifier is not supposed to remove it - so unless its hardware is modified, its effectiveness is questionable. It is also very hard to imagine a situation, in which vapors of &amp;quot;new kind of water&amp;quot; would end up in house in significant quantities; such &amp;quot;new waters&amp;quot; can cause irritation with minor residual injuries - being too weak to use as chemical weapons, yet too dangerous to be found in ordinary house - and such &amp;quot;new kinds of water&amp;quot; are mostly found in nuclear reactor facilities, having no everyday use for household, and don't appear naturally.&lt;br /&gt;
&lt;br /&gt;
Yet there ''is'' a method, which could allow to get positive results from built-in computer and WI-FI: gaining unrestricted access to device's internal computer (anything capable of running ''{{w|Doom_(1993_video_game)|Doom}}'' and/or participating in &amp;quot;{{w|Mirai (malware)|Mirai}}&amp;quot; botnet does have a computer inside), possibly via undocumented features or hacking. For example, to connect all household appliances into single distributed computation network, which could do useful computations (E.G. host a site; calculate chemical/biological reactions; mine cryptocurrency; initiate DDOS-attacks; run arbitrary programs; be used as ersatz PC; etc). Their inner data storage (flash drive, hard drive, etc) could be used to store all sorts of files, as extra disk space or for confidential data (since household appliances aren't ''meant'' to store arbitrary data or run arbitrary programs, they're unlikely to be attacked or searched). Some devices conenct through the {{w|cellular network}}, or similarly independent communications with the manufacturer/vendor/supplied, and so may accordingly have some form of connection that is entirely independent of your own household internet. If they have this ''and'' the ability to establish a local wifi connection, this could result in several unanticipated connotations for the user and/or provider. They should have access to variety of interesting places (e.g. the servers of their manufacturer, from which they download updates and to which send error messages). The problem with this, is that &amp;quot;smart&amp;quot; appliances are often comparable or weaker than micro-PCs (like &amp;quot;{{w|Raspberry Pi|Pi}}&amp;quot; variants) &amp;amp;mdash; while often costing more, than combination of normal appliance and Pi micro-PC &amp;amp;mdash; making such devices not viable for computations, unless either user ''already'' has smart devices in his house, or device has abnormally high computing power for it's job due to over-engineering (some multifunction printers may have storage capacities ranging from significant fractions of gigabytes up to terabytes, as a means of buffering documents being [[2369: All-in-One|scanned/printed]]).&lt;br /&gt;
&lt;br /&gt;
A related device was previously referred to in [[3044: Humidifier Review]], and the issue of possibly considering online protection of devices that (arguably) should not be so easily exploitable was looked at in [[463: Voting Machines]] and [[1966: Smart Home Security]]. Comic [[1912: Thermostat]] also deals with risks of adding computers to appliances.&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
: [A store salesman, [[Hairy]], is showing [[Cueball]] a dehumidifier with a &amp;quot;SALE&amp;quot; label on it. Several other unidentified devices, possibly other dehumidifier models, are shown in the store as well.]&lt;br /&gt;
&lt;br /&gt;
: Hairy: This dehumidifier model features built-in WiFi for remote updates.&lt;br /&gt;
: Cueball: Great! That will be really useful if they discover a new kind of water.&lt;br /&gt;
&lt;br /&gt;
==Trivia==&lt;br /&gt;
&lt;br /&gt;
Technically there are many different kinds of liquid water, based on the possible isotopes of hydrogen and oxygen atoms that its molecules are composed of. One of the most well known is {{w|heavy water}}, deuterium oxide, that is sometimes used in nuclear devices. There are 3 naturally-occurring {{w|isotopes of hydrogen}}&amp;lt;!-- including one of 'trace' quantities--&amp;gt;, with 6 possible combinations for its two atoms in a water molecule, and 4 naturally-occurring {{w|isotopes of oxygen}}&amp;lt;!-- including one of 'trace' quantities--&amp;gt;. This gives 6 × 4 = 24 kinds of naturally-occurring water molecules, which could be present in liquid water in any proportions. In ordinary water as found under mundane circumstances on Earth, 99.7% of all such molecules&amp;lt;!-- based upon given prevalences --&amp;gt; will be the 'normal' version of water: two atoms of &amp;lt;sup&amp;gt;1&amp;lt;/sup&amp;gt;H and one atom of &amp;lt;sup&amp;gt;16&amp;lt;/sup&amp;gt;O. (The isotopic ratios in &amp;quot;natural&amp;quot; water are relatively stable, so there's very little variation in water found in nature.) There are also synthetic isotopes of each, all radioactive, most having short half-lives&amp;lt;!-- as are the two 'trace' Hydrogen and Oxygen ones, so maybe it should be 2x3=6 kinds of stable water..?--&amp;gt;. How many of these could be used to constitute water would depend in part on one's definition of whether a molecule of water could be said to have been formed prior to the decay of its constituent atoms. Each isotopically-distinct version of water has very slightly different physical and chemical properties, though the differences are small and the versions hard to separate. (Separation is further complicated by the extremely rapid rate with which molecules in liquid water {{w|Grotthuss mechanism|exchange hydrogen ions (protons)}} between themselves.) The differences would not be at all important to a consumer-grade dehumidifier.{{cn}}&lt;br /&gt;
&lt;br /&gt;
As of when this comic was posted, there are also 26 known {{w|phases of ice}} (solid water), each of which could be made from any combination of the isotopically-distinct versions of water in any proportions. These might count as different &amp;quot;kinds of water&amp;quot;, and one was discovered in 2025; others may yet be discovered. Only one of these phases, Ice I&amp;lt;sub&amp;gt;h&amp;lt;/sub&amp;gt;, is likely to be found on an iced-over dehumidifier under normal conditions of use.&lt;br /&gt;
&lt;br /&gt;
In the {{w|Twin Earth thought experiment}}, there exists a second Earth (called Twin Earth), in every way identical to ours, except that there is no water as we know it. Instead, there is XYZ, a substance that is chemically distinct from water, but is experientially identical to water, and referred to by the inhabitants of Twin Earth as &amp;quot;water&amp;quot;. Surprisingly, this dehumidifier might be useful, if the manufacturer was also planning to sell it on Twin Earth.&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&amp;lt;noinclude&amp;gt;&lt;br /&gt;
[[Category: Comics featuring Cueball]]&lt;br /&gt;
[[Category: Comics featuring Hairy]]&lt;br /&gt;
[[Category: Internet]]&lt;/div&gt;</summary>
		<author><name>SMGmsgsgd</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=3109:_Dehumidifier&amp;diff=380994</id>
		<title>3109: Dehumidifier</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=3109:_Dehumidifier&amp;diff=380994"/>
				<updated>2025-07-08T06:55:30Z</updated>
		
		<summary type="html">&lt;p&gt;SMGmsgsgd: /* Explanation */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 3109&lt;br /&gt;
| date      = June 30, 2025&lt;br /&gt;
| title     = Dehumidifier&lt;br /&gt;
| image     = dehumidifier_2x.png&lt;br /&gt;
| imagesize = 295x327px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = It's important for devices to have internet connectivity so the manufacturer can patch remote exploits.&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
{{incomplete|This page was created WITHOUT INTERNET ACCESS. Don't remove this notice too soon.}}&lt;br /&gt;
&lt;br /&gt;
In this comic, [[Randall]] mocks the recent trend of various appliances, such as stoves and juicers, being connected to the internet even though one would expect them to be able to function without an internet connection. A {{w|dehumidifier}} removes moisture from the air. There are no obvious ways to improve dehumidifier operation without changes to its hardware. Modern machines are incapable of self-modifying their hardware &amp;quot;on the fly&amp;quot; - requiring electronic or mechanic intervention to modify, which doesn't require the machine to have internet connection. Practical self-modifying machines would, likely, require practical inorganic nanorobots to construct. Thus it's unclear what benefit being able to receive updates via the internet would confer. [[Cueball]]'s sarcastic reply underlines the unlikeliness of a situation occurring where an update would be necessary. The implication is that many of these internet-connected devices are examples of over-engineering a solution to do things 'because we can' or because it makes it sound advanced and therefore more desirable to the customer, rather than because it offers any real added value.&lt;br /&gt;
&lt;br /&gt;
Dehumidifiers ''can'' provide information which might be useful to access remotely. For instance, it might be helpful to know the level of water in the storage tank (which must be emptied when full), the percent of time the humidifier is paused for de-icing, a log of the humidity level over time, and whether the humidity exceeds a certain limit (which could indicate dehumidifier malfunction, or that the dehumidifier is inadequate to the conditions), though how actionable and urgent this information would be is debatable. A local wireless network connected via WiFi is a reasonable way to send this information to a user or to other local devices.  &lt;br /&gt;
&lt;br /&gt;
However, many devices like this now offer, or even require, connections to a special app or to the internet. They typically connect to servers run by the device's manufacturer. When that server goes away, the devices may stop working.&lt;br /&gt;
&lt;br /&gt;
The title text says that authorized internet access is required to patch remote {{w|Exploit (computer security)|exploits}} (i.e., harmful unauthorized access from the internet). If this is the only use case that requires internet access, it would be much simpler to remove the {{w|attack vector}} for remote exploits by not having it connected to the internet in the first place. The most likely source of remote access would probably be the remote updater itself. However, there are proofs-of-concept of devices being hacked through acoustic-based or light-based attacks (possibly through hacked speakers or even from outside the house), and a patch could possibly circumvent those attacks.&lt;br /&gt;
&lt;br /&gt;
&amp;quot;New kind of water&amp;quot; could refer to {{w|heavy water}}, {{w|tritiated water}}, {{w|doubly labeled water}}, {{w|hydronium}}, {{w|semiheavy water}}, {{w|deuterium-depleted water}}, or something which isn't detected/invented yet. However, dehumidifier is not supposed to remove it - so unless its hardware is modified, its effectiveness is questionable. It is also very hard to imagine a situation, in which vapors of &amp;quot;new kind of water&amp;quot; would end up in house in significant quantities; such &amp;quot;new waters&amp;quot; can cause irritation with minor residual injuries - being too weak to use as chemical weapons, yet too dangerous to be found in ordinary house - and such &amp;quot;new kinds of water&amp;quot; are mostly found in nuclear reactor facilities, having no everyday use for household, and don't appear naturally.&lt;br /&gt;
&lt;br /&gt;
Yet there ''is'' a method, which could allow to get positive results from built-in computer and WI-FI: gaining unrestricted access to device's internal computer (anything capable of running ''{{w|Doom_(1993_video_game)|Doom}}'' does have a computer inside), possibly via undocumented features or hacking. For example, to connect all household appliances into single distributed computation network, which could do useful computations (E.G. host a site; calculate chemical/biological reactions; mine cryptocurrency; initiate DDOS-attacks; run arbitrary programs; be used as ersatz PC; etc). Their inner data storage (flash drive, hard drive, etc) could be used to store all sorts of files, as extra disk space or for confidential data (since household appliances aren't ''meant'' to store arbitrary data or run arbitrary programs, they're unlikely to be attacked or searched). Some devices conenct through the {{w|cellular network}}, or similarly independent communications with the manufacturer/vendor/supplied, and so may accordingly have some form of connection that is entirely independent of your own household internet. If they have this ''and'' the ability to establish a local wifi connection, this could result in several unanticipated connotations for the user and/or provider. They should have access to variety of interesting places (e.g. the servers of their manufacturer, from which they download updates and to which send error messages). The problem with this, is that &amp;quot;smart&amp;quot; appliances are often comparable or weaker than micro-PCs (like &amp;quot;{{w|Raspberry Pi|Pi}}&amp;quot; variants) &amp;amp;mdash; while often costing more, than combination of normal appliance and Pi micro-PC &amp;amp;mdash; making such devices not viable for computations, unless either user ''already'' has smart devices in his house, or device has abnormally high computing power for it's job due to over-engineering (some multifunction printers may have storage capacities ranging from significant fractions of gigabytes up to terabytes, as a means of buffering documents being [[2369: All-in-One|scanned/printed]]).&lt;br /&gt;
&lt;br /&gt;
A related device was previously referred to in [[3044: Humidifier Review]], and the issue of possibly considering online protection of devices that (arguably) should not be so easily exploitable was looked at in [[463: Voting Machines]] and [[1966: Smart Home Security]]. Comic [[1912: Thermostat]] also deals with risks of adding computers to appliances.&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
: [A store salesman, [[Hairy]], is showing [[Cueball]] a dehumidifier with a &amp;quot;SALE&amp;quot; label on it. Several other unidentified devices, possibly other dehumidifier models, are shown in the store as well.]&lt;br /&gt;
&lt;br /&gt;
: Hairy: This dehumidifier model features built-in WiFi for remote updates.&lt;br /&gt;
: Cueball: Great! That will be really useful if they discover a new kind of water.&lt;br /&gt;
&lt;br /&gt;
==Trivia==&lt;br /&gt;
&lt;br /&gt;
Technically there are many different kinds of liquid water, based on the possible isotopes of hydrogen and oxygen atoms that its molecules are composed of. One of the most well known is {{w|heavy water}}, deuterium oxide, that is sometimes used in nuclear devices. There are 3 naturally-occurring {{w|isotopes of hydrogen}}&amp;lt;!-- including one of 'trace' quantities--&amp;gt;, with 6 possible combinations for its two atoms in a water molecule, and 4 naturally-occurring {{w|isotopes of oxygen}}&amp;lt;!-- including one of 'trace' quantities--&amp;gt;. This gives 6 × 4 = 24 kinds of naturally-occurring water molecules, which could be present in liquid water in any proportions. In ordinary water as found under mundane circumstances on Earth, 99.7% of all such molecules&amp;lt;!-- based upon given prevalences --&amp;gt; will be the 'normal' version of water: two atoms of &amp;lt;sup&amp;gt;1&amp;lt;/sup&amp;gt;H and one atom of &amp;lt;sup&amp;gt;16&amp;lt;/sup&amp;gt;O. (The isotopic ratios in &amp;quot;natural&amp;quot; water are relatively stable, so there's very little variation in water found in nature.) There are also synthetic isotopes of each, all radioactive, most having short half-lives&amp;lt;!-- as are the two 'trace' Hydrogen and Oxygen ones, so maybe it should be 2x3=6 kinds of stable water..?--&amp;gt;. How many of these could be used to constitute water would depend in part on one's definition of whether a molecule of water could be said to have been formed prior to the decay of its constituent atoms. Each isotopically-distinct version of water has very slightly different physical and chemical properties, though the differences are small and the versions hard to separate. (Separation is further complicated by the extremely rapid rate with which molecules in liquid water {{w|Grotthuss mechanism|exchange hydrogen ions (protons)}} between themselves.) The differences would not be at all important to a consumer-grade dehumidifier.{{cn}}&lt;br /&gt;
&lt;br /&gt;
As of when this comic was posted, there are also 26 known {{w|phases of ice}} (solid water), each of which could be made from any combination of the isotopically-distinct versions of water in any proportions. These might count as different &amp;quot;kinds of water&amp;quot;, and one was discovered in 2025; others may yet be discovered. Only one of these phases, Ice I&amp;lt;sub&amp;gt;h&amp;lt;/sub&amp;gt;, is likely to be found on an iced-over dehumidifier under normal conditions of use.&lt;br /&gt;
&lt;br /&gt;
In the {{w|Twin Earth thought experiment}}, there exists a second Earth (called Twin Earth), in every way identical to ours, except that there is no water as we know it. Instead, there is XYZ, a substance that is chemically distinct from water, but is experientially identical to water, and referred to by the inhabitants of Twin Earth as &amp;quot;water&amp;quot;. Surprisingly, this dehumidifier might be useful, if the manufacturer was also planning to sell it on Twin Earth.&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&amp;lt;noinclude&amp;gt;&lt;br /&gt;
[[Category: Comics featuring Cueball]]&lt;br /&gt;
[[Category: Comics featuring Hairy]]&lt;br /&gt;
[[Category: Internet]]&lt;/div&gt;</summary>
		<author><name>SMGmsgsgd</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=Talk:3109:_Dehumidifier&amp;diff=380942</id>
		<title>Talk:3109: Dehumidifier</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=Talk:3109:_Dehumidifier&amp;diff=380942"/>
				<updated>2025-07-07T13:45:09Z</updated>
		
		<summary type="html">&lt;p&gt;SMGmsgsgd: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;&amp;lt;!-- Please sign your posts with ~~~~ and don't delete this text. New comments should be added at the bottom. --&amp;gt;&lt;br /&gt;
Having network access can have some use for a dehumidifier, e.g. to remotely set the target humidity level, or get notifications when the water tank needs to get emptied. But having devices that depend on a specific app or a vendor-provided remote service risks having a useless device after a while ... --[[Special:Contributions/134.102.219.31|134.102.219.31]] 13:19, 30 June 2025 (UTC)&lt;br /&gt;
:Humidifiers typically have a physical control to set a target humidity level, and even the most basic models turn off when the water tank gets full. Since humans can't really tell the difference between 40-60%, which is the range of most humidifiers, there is no need for a remote control to change the humidity levels on a machine. As for the water tank, regular use of the humidifier will teach the user about how long it can run before turning off and needing to be emptied. {{unsigned ip|136.62.110.93|13:58, 30 June 2025 (UTC)}}&lt;br /&gt;
::Though there might be a device that attempts to do [[2753: Air Handler|both jobs]], note that this is a {{w|dehumidifier}} (as you functionally refer to) and not ''necessarily'' also a capable {{w|humidifier}} (as you namechecked it). [[Special:Contributions/92.23.2.228|92.23.2.228]] 17:53, 30 June 2025 (UTC)&lt;br /&gt;
:::uh, I forgot the leading 'de' . we're currently dealing with a semi-functional a/c unit in our business warehouse/office space. having to keep running the DEhumidifier to keep the temp reasonable during work hours. not enough condensate capacity to run over night, so it shuts off after about 10-12 hours. at least it runs on simple mechanical controls with no reliance on wi-fi 13:40, 1 July 2025 (UTC)&lt;br /&gt;
::: i had a good laugh at this comic, as i am designing dehumidifiers and they include wireless connectivity.....but there are reasons for this. But is more for monitoring, like e.g. in a water damage case the resoration company can see if the room is dry without having a technician drive to the location.&lt;br /&gt;
&lt;br /&gt;
::: Awe Mai Gawd! I have one word for you: Horizon Post Office Scandal.[[User:Jgharston|Jgharston]] ([[User talk:Jgharston|talk]]) 01:38, 6 July 2025 (UTC)&lt;br /&gt;
&lt;br /&gt;
:::this comic will end up on our wall, together with [https://xkcd.com/242/ xkcd:242 The Difference]--&lt;br /&gt;
[[Special:Contributions/84.46.99.18|84.46.99.18]] 06:41, 1 July 2025 (UTC)&lt;br /&gt;
&lt;br /&gt;
&amp;quot;if they discover a new kind of water&amp;quot; - There are several varieties of heavy water (common Hydrogen deuterium, tritium; common oxygen, various other isotopes), not to mention several [wiki:Phases of ice|phases of ice]. [[Special:Contributions/64.201.132.210|64.201.132.210]] 20:31, 30 June 2025 (UTC)&lt;br /&gt;
:I restored the part about phases of ice, because dehumidifiers do deal with ice (when icing up, and if the ambient temperature gets low).  Mostly put it back because I thought a mention of {{w|ice-nine}} would be fun. [[Special:Contributions/2600:387:4:803:0:0:0:B2|2600:387:4:803:0:0:0:B2]] 20:42, 30 June 2025 (UTC)&lt;br /&gt;
&lt;br /&gt;
Is the salesman Hairy? Seems similar but not quite enough hair, I'm not sure who he's supposed to be --[[User:Darth Vader|Darth Vader]] ([[User talk:Darth Vader|talk]]) 21:17, 30 June 2025 (UTC)&lt;br /&gt;
: I'd say it's him.--[[User:FaviFake|FaviFake]] ([[User talk:FaviFake|talk]]) 22:19, 30 June 2025 (UTC)&lt;br /&gt;
&lt;br /&gt;
hydrogen peroxide.--[[User:Bb777|me, hi]] ([[User talk:Bb777|talk]]) 01:12, 1 July 2025 (UTC)&lt;br /&gt;
:It's made of the same elements, but it isn't water. [[User:BunsenH|BunsenH]] ([[User talk:BunsenH|talk]]) 02:29, 1 July 2025 (UTC)&lt;br /&gt;
:still liquid. --[[User:Bb777|me, hi]] ([[User talk:Bb777|talk]]) 21:44, 2 July 2025 (UTC)&lt;br /&gt;
::better patch that hole i made with hydrogen peroxide.--[[User:Bb777|me, hi]] ([[User talk:Bb777|talk]]) 21:49, 2 July 2025 (UTC)&lt;br /&gt;
:Hydrogen peroxide is not to be confused with {{w|DHMO|Dihydrogen Monoxide}} --[[Special:Contributions/134.102.219.31|134.102.219.31]] 11:30, 1 July 2025 (UTC)&lt;br /&gt;
:&amp;quot;Two guys walk into a bar. One says, 'I'll have H₂O.' The other says, 'I'll have H₂O too.' The second guy dies.&amp;quot;, Anonymous --[[User:Ptdecker66|Ptdecker66]] ([[User talk:Ptdecker66|talk]]) 14:10, 1 July 2025 (UTC)&lt;br /&gt;
&lt;br /&gt;
Ice-nine is mentioned once in the trivia section. Did the user that added that mean to say ice-IX, were they unaware that ice-nine is fictional, or was it meant to be a joke? I thought that any &amp;quot;jokes&amp;quot; in the explanation were supposed to be technically factual, such as adding [citation needed] to a plainly obvious statement. Please forgive me for asking this stupid question. [[Special:Contributions/47.14.13.170|47.14.13.170]] 01:22, 1 July 2025 (UTC)&lt;br /&gt;
:Yes, it's supposed to all be factual.  I've updated that. [[User:BunsenH|BunsenH]] ([[User talk:BunsenH|talk]]) 02:29, 1 July 2025 (UTC)&lt;br /&gt;
&lt;br /&gt;
I just mentioned acoustic-based/light-based attack vectors and that patches might circumvent them. I've heard of them used against other devices, but never against a dehumidifier. Citation needed? [[Special:Contributions/181.214.218.75|181.214.218.75]] 17:36, 1 July 2025 (UTC)&lt;br /&gt;
&lt;br /&gt;
NOTE: water molecules do NOT exchange hydrogen ATOMS.  atoms contain both protons and electrons.  even your reference states that water molecules exchange PROTONS, not atoms. {{unsigned ip|2607:fb90:8a91:4e30:3c86:6f12:78c6:fe52|00:30, 2 July 2025}}&lt;br /&gt;
&lt;br /&gt;
Does it at least support water conservation? [[User:StapleFreeBatteries|StapleFreeBatteries]] ([[User talk:StapleFreeBatteries|talk]]) 06:06, 2 July 2025 (UTC)&lt;br /&gt;
:It probably supports water conversation, at the very least. [[Special:Contributions/92.23.2.228|92.23.2.228]] 18:18, 2 July 2025 (UTC)&lt;br /&gt;
&lt;br /&gt;
Improving the functioning of a dehumidifier does not require a new type of water.  It could for example have a variable speed motor and prop-expansion valve.  It is impossible to explore the full range of possible operations, so continuing engineering may be able to find better ways to operate the hardware without alterations.  I worked on industrial equipment; we would routinely rollout software upgrades that would tweak a few percent improvement in installed equipment.  [[Special:Contributions/76.180.44.2|76.180.44.2]] 16:35, 5 July 2025 (UTC)&lt;br /&gt;
&lt;br /&gt;
I can't make much sense of the new &amp;quot;Yet there is a method&amp;quot; paragraph.  It seems to be saying that if programmability was added to absolutely everything, stuff could be done with it, but probably not very much.  It's kind of like saying that if vitamins were added to absolutely everything, you could get some more nutrition by chewing on random objects in addition to the food you eat.  It's a somewhat weaker argument than the usual &amp;quot;citation needed&amp;quot;. [[User:BunsenH|BunsenH]] ([[User talk:BunsenH|talk]]) 04:07, 7 July 2025 (UTC)&lt;br /&gt;
:That's the only idea i currently have about benefits of Wi-Fi in dehumidifier - it has no benefits for it's intended function, but does benefits for it's undocumented functions. Such smart devices can work as weak-ish computers with programmability; not very much - but they're already in your house, so you're getting that as a bonus - and you likely have many such devices in home, so they could be assembled into actually strong computation network. --[[User:SMGmsgsgd|SMGmsgsgd]] ([[User talk:SMGmsgsgd|talk]]) 13:45, 7 July 2025 (UTC)&lt;/div&gt;</summary>
		<author><name>SMGmsgsgd</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=3109:_Dehumidifier&amp;diff=380919</id>
		<title>3109: Dehumidifier</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=3109:_Dehumidifier&amp;diff=380919"/>
				<updated>2025-07-07T10:07:25Z</updated>
		
		<summary type="html">&lt;p&gt;SMGmsgsgd: /* Explanation */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 3109&lt;br /&gt;
| date      = June 30, 2025&lt;br /&gt;
| title     = Dehumidifier&lt;br /&gt;
| image     = dehumidifier_2x.png&lt;br /&gt;
| imagesize = 295x327px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = It's important for devices to have internet connectivity so the manufacturer can patch remote exploits.&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
{{incomplete|This page was created WITHOUT INTERNET ACCESS. Don't remove this notice too soon.}}&lt;br /&gt;
&lt;br /&gt;
In this comic, [[Randall]] mocks the recent trend of various appliances, such as stoves and juicers, being connected to the internet even though one would expect them to be able to function without an internet connection. A {{w|dehumidifier}} removes moisture from the air. There are no obvious ways to improve dehumidifier operation without changes to its hardware. Modern machines are incapable of self-modifying their hardware &amp;quot;on the fly&amp;quot; - requiring electronic or mechanic intervention to modify, which doesn't require the machine to have internet connection. Practical self-modifying machines would, likely, require practical inorganic nanorobots to construct. Thus it's unclear what benefit being able to receive updates via the internet would confer. [[Cueball]]'s sarcastic reply underlines the unlikeliness of a situation occurring where an update would be necessary. The implication is that many of these internet-connected devices are examples of over-engineering a solution to do things 'because we can' or because it makes it sound advanced and therefore more desirable to the customer, rather than because it offers any real added value.&lt;br /&gt;
&lt;br /&gt;
Dehumidifiers ''can'' provide information which might be useful to access remotely. For instance, it might be helpful to know the level of water in the storage tank (which must be emptied when full), the percent of time the humidifier is paused for de-icing, a log of the humidity level over time, and whether the humidity exceeds a certain limit (which could indicate dehumidifier malfunction, or that the dehumidifier is inadequate to the conditions), though how actionable and urgent this information would be is debatable. A local wireless network connected via WiFi is a reasonable way to send this information to a user or to other local devices.  &lt;br /&gt;
&lt;br /&gt;
However, many devices like this now offer, or even require, connections to a special app or to the internet. They typically connect to servers run by the device's manufacturer. When that server goes away, the devices may stop working.&lt;br /&gt;
&lt;br /&gt;
The title text says that authorized internet access is required to patch remote {{w|Exploit (computer security)|exploits}} (i.e., harmful unauthorized access from the internet). If this is the only use case that requires internet access, it would be much simpler to remove the {{w|attack vector}} for remote exploits by not having it connected to the internet in the first place. The most likely source of remote access would probably be the remote updater itself. However, there are proofs-of-concept of devices being hacked through acoustic-based or light-based attacks (possibly through hacked speakers or even from outside the house), and a patch could possibly circumvent those attacks.&lt;br /&gt;
&lt;br /&gt;
&amp;quot;New kind of water&amp;quot; could refer to {{w|heavy water}}, {{w|tritiated water}}, {{w|doubly labeled water}}, {{w|hydronium}}, {{w|semiheavy water}}, {{w|deuterium-depleted water}}, or something which isn't detected/invented yet. However, dehumidifier is not supposed to remove it - so unless its hardware is modified, its effectiveness is questionable. It is also very hard to imagine a situation, in which vapors of &amp;quot;new kind of water&amp;quot; would end up in house in significant quantities; such &amp;quot;new waters&amp;quot; can cause irritation with minor residual injuries - being too weak to use as chemical weapons, yet too dangerous to be found in ordinary house - and such &amp;quot;new kinds of water&amp;quot; are mostly found in nuclear reactor facilities, having no everyday use for household, and don't appear naturally.&lt;br /&gt;
&lt;br /&gt;
Yet there ''is'' a method, which could allow to get positive results from built-in computer and WI-FI: gaining unrestricted access to device's internal computer, possibly via undocumented features or hacking. For example, to connect all household appliances into single distributed computation network, which could do useful computations (E.G. host a site; calculate chemical/biological reactions; mine cryptocurrency; initiate DDOS-attacks; run arbitrary programs; be used as ersatz PC; etc). Their inner data storage (flash drive, hard drive, etc) could be used to store all sorts of files, as extra disk space or for confidential data (since household appliances aren't ''meant'' to store arbitrary data or run arbitrary programs, they're unlikely to be attacked or searched). Their WI-Fi capability can be used to connect to Internet for arbitrary means, especially since they're likely to have their own IP-address (E.G. to hide identity; or if you don't have good internet at home); since their supposed function is to download updates, they should have access to variety of interesting places (E.G. the servers of their manufacturer, from which they download updates and to which send error messages). The problem with this, is that &amp;quot;smart&amp;quot; appliances are often comparable or weaker than micro-PCs (like &amp;quot;{{w|Raspberry Pi|Pi}}&amp;quot; variants) &amp;amp;mdash; while often costing more, than combination of normal appliance and Pi micro-PC &amp;amp;mdash; making such devices not viable for computations, unless either user ''already'' has smart devices in his house, or device has abnormally high computing power for it's job due to over-engineering (E.G. some printers have hard drive with tenths of gigabytes to terabytes of storage space).&lt;br /&gt;
&lt;br /&gt;
A related device was previously referred to in [[3044: Humidifier Review]], and the issue of possibly considering online protection of devices that (arguably) should not be so easily exploitable was looked at in [[463: Voting Machines]] and [[1966: Smart Home Security]]. Comic [[1912: Thermostat]] also deals with risks of adding computers to appliances.&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
: [A store salesman, [[Hairy]], is showing [[Cueball]] a dehumidifier with a &amp;quot;SALE&amp;quot; label on it. Several other unidentified devices, possibly other dehumidifier models, are shown in the store as well.]&lt;br /&gt;
&lt;br /&gt;
: Hairy: This dehumidifier model features built-in WiFi for remote updates.&lt;br /&gt;
: Cueball: Great! That will be really useful if they discover a new kind of water.&lt;br /&gt;
&lt;br /&gt;
==Trivia==&lt;br /&gt;
&lt;br /&gt;
Technically there are many different kinds of liquid water, based on the possible isotopes of hydrogen and oxygen atoms that its molecules are composed of. One of the most well known is {{w|heavy water}}, deuterium oxide, that is sometimes used in nuclear devices. There are 3 naturally-occurring {{w|isotopes of hydrogen}}&amp;lt;!-- including one of 'trace' quantities--&amp;gt;, with 6 possible combinations for its two atoms in a water molecule, and 4 naturally-occurring {{w|isotopes of oxygen}}&amp;lt;!-- including one of 'trace' quantities--&amp;gt;. This gives 6 × 4 = 24 kinds of naturally-occurring water molecules, which could be present in liquid water in any proportions. In ordinary water as found under mundane circumstances on Earth, 99.7% of all such molecules&amp;lt;!-- based upon given prevalences --&amp;gt; will be the 'normal' version of water: two atoms of &amp;lt;sup&amp;gt;1&amp;lt;/sup&amp;gt;H and one atom of &amp;lt;sup&amp;gt;16&amp;lt;/sup&amp;gt;O. (The isotopic ratios in &amp;quot;natural&amp;quot; water are relatively stable, so there's very little variation in water found in nature.) There are also synthetic isotopes of each, all radioactive, most having short half-lives&amp;lt;!-- as are the two 'trace' Hydrogen and Oxygen ones, so maybe it should be 2x3=6 kinds of stable water..?--&amp;gt;. How many of these could be used to constitute water would depend in part on one's definition of whether a molecule of water could be said to have been formed prior to the decay of its constituent atoms. Each isotopically-distinct version of water has very slightly different physical and chemical properties, though the differences are small and the versions hard to separate. (Separation is further complicated by the extremely rapid rate with which molecules in liquid water {{w|Grotthuss mechanism|exchange hydrogen ions (protons)}} between themselves.) The differences would not be at all important to a consumer-grade dehumidifier.{{cn}}&lt;br /&gt;
&lt;br /&gt;
As of when this comic was posted, there are also 26 known {{w|phases of ice}} (solid water), each of which could be made from any combination of the isotopically-distinct versions of water in any proportions. These might count as different &amp;quot;kinds of water&amp;quot;, and one was discovered in 2025; others may yet be discovered. Only one of these phases, Ice I&amp;lt;sub&amp;gt;h&amp;lt;/sub&amp;gt;, is likely to be found on an iced-over dehumidifier under normal conditions of use.&lt;br /&gt;
&lt;br /&gt;
In the {{w|Twin Earth thought experiment}}, there exists a second Earth (called Twin Earth), in every way identical to ours, except that there is no water as we know it. Instead, there is XYZ, a substance that is chemically distinct from water, but is experientially identical to water, and referred to by the inhabitants of Twin Earth as &amp;quot;water&amp;quot;. Surprisingly, this dehumidifier might be useful, if the manufacturer was also planning to sell it on Twin Earth.&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&amp;lt;noinclude&amp;gt;&lt;br /&gt;
[[Category: Comics featuring Cueball]]&lt;br /&gt;
[[Category: Comics featuring Hairy]]&lt;br /&gt;
[[Category: Internet]]&lt;/div&gt;</summary>
		<author><name>SMGmsgsgd</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=3109:_Dehumidifier&amp;diff=380917</id>
		<title>3109: Dehumidifier</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=3109:_Dehumidifier&amp;diff=380917"/>
				<updated>2025-07-07T09:49:59Z</updated>
		
		<summary type="html">&lt;p&gt;SMGmsgsgd: /* Explanation */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 3109&lt;br /&gt;
| date      = June 30, 2025&lt;br /&gt;
| title     = Dehumidifier&lt;br /&gt;
| image     = dehumidifier_2x.png&lt;br /&gt;
| imagesize = 295x327px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = It's important for devices to have internet connectivity so the manufacturer can patch remote exploits.&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
{{incomplete|This page was created WITHOUT INTERNET ACCESS. Don't remove this notice too soon.}}&lt;br /&gt;
&lt;br /&gt;
In this comic, [[Randall]] mocks the recent trend of various appliances, such as stoves and juicers, being connected to the internet even though one would expect them to be able to function without an internet connection. A {{w|dehumidifier}} removes moisture from the air. There are no obvious ways to improve dehumidifier operation without changes to its hardware. Modern machines are incapable of self-modifying their hardware &amp;quot;on the fly&amp;quot; - requiring electronic or mechanic intervention to modify, which doesn't require the machine to have internet connection. Practical self-modifying machines would, likely, require practical inorganic nanorobots to construct. Thus it's unclear what benefit being able to receive updates via the internet would confer. [[Cueball]]'s sarcastic reply underlines the unlikeliness of a situation occurring where an update would be necessary. The implication is that many of these internet-connected devices are examples of over-engineering a solution to do things 'because we can' or because it makes it sound advanced and therefore more desirable to the customer, rather than because it offers any real added value.&lt;br /&gt;
&lt;br /&gt;
Dehumidifiers ''can'' provide information which might be useful to access remotely. For instance, it might be helpful to know the level of water in the storage tank (which must be emptied when full), the percent of time the humidifier is paused for de-icing, a log of the humidity level over time, and whether the humidity exceeds a certain limit (which could indicate dehumidifier malfunction, or that the dehumidifier is inadequate to the conditions), though how actionable and urgent this information would be is debatable. A local wireless network connected via WiFi is a reasonable way to send this information to a user or to other local devices.  &lt;br /&gt;
&lt;br /&gt;
However, many devices like this now offer, or even require, connections to a special app or to the internet. They typically connect to servers run by the device's manufacturer. When that server goes away, the devices may stop working.&lt;br /&gt;
&lt;br /&gt;
The title text says that authorized internet access is required to patch remote {{w|Exploit (computer security)|exploits}} (i.e., harmful unauthorized access from the internet). If this is the only use case that requires internet access, it would be much simpler to remove the {{w|attack vector}} for remote exploits by not having it connected to the internet in the first place. The most likely source of remote access would probably be the remote updater itself. However, there are proofs-of-concept of devices being hacked through acoustic-based or light-based attacks (possibly through hacked speakers or even from outside the house), and a patch could possibly circumvent those attacks.&lt;br /&gt;
&lt;br /&gt;
&amp;quot;New kind of water&amp;quot; could refer to {{w|heavy water}}, {{w|tritiated water}}, {{w|doubly labeled water}}, {{w|hydronium}}, {{w|semiheavy water}}, {{w|deuterium-depleted water}}, or something which isn't detected/invented yet. However, dehumidifier is not supposed to remove it - so unless its hardware is modified, its effectiveness is questionable. It is also very hard to imagine a situation, in which vapors of &amp;quot;new kind of water&amp;quot; would end up in house in significant quantities; such &amp;quot;new waters&amp;quot; can cause irritation with minor residual injuries - being too weak to use as chemical weapons, yet too dangerous to be found in ordinary house - and such &amp;quot;new kinds of water&amp;quot; are mostly found in nuclear reactor facilities, having no everyday use for household, and don't appear naturally.&lt;br /&gt;
&lt;br /&gt;
Yet there ''is'' a method, which could allow to get positive results from built-in computer and WI-FI: gaining unrestricted access to device's internal computer, possibly via undocumented features or hacking. For example, to connect all household appliances into single distributed computation network, which could do useful computations (E.G. host a site; calculate chemical/biological reactions; mine cryptocurrency; initiate DDOS-attacks; run arbitrary programs; be used as ersatz PC; etc). Their inner data storage (flash drive, hard drive, etc) could be used to store all sorts of files, as extra disk space or for confidential data (since household appliances aren't ''meant'' to store arbitrary data or run arbitrary programs, they're unlikely to be attacked or searched). Their WI-Fi capability can be used to connect to Internet for arbitrary means, especially since they're likely to have their own IP-address (E.G. to hide identity; or if you don't have good internet at home); since their supposed function is to download updates, they should have access to variety of interesting places (E.G. the servers of their manufacturer, from which they download updates and to which send error messages). The problem with this, is that &amp;quot;smart&amp;quot; appliances are often comparable or weaker than micro-PCs (like &amp;quot;{{w|Raspberry Pi|Pi}}&amp;quot; variants) &amp;amp;mdash; while often costing more, than combination of normal appliance and Pi micro-PC &amp;amp;mdash; making such devices not viable for computations, unless either user ''already'' has smart devices in his house, or device has abnormally high computing power for it's job due to over-engineering.&lt;br /&gt;
&lt;br /&gt;
A related device was previously referred to in [[3044: Humidifier Review]], and the issue of possibly considering online protection of devices that (arguably) should not be so easily exploitable was looked at in [[463: Voting Machines]] and [[1966: Smart Home Security]]. Comic [[1912: Thermostat]] also deals with risks of adding computers to appliances.&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
: [A store salesman, [[Hairy]], is showing [[Cueball]] a dehumidifier with a &amp;quot;SALE&amp;quot; label on it. Several other unidentified devices, possibly other dehumidifier models, are shown in the store as well.]&lt;br /&gt;
&lt;br /&gt;
: Hairy: This dehumidifier model features built-in WiFi for remote updates.&lt;br /&gt;
: Cueball: Great! That will be really useful if they discover a new kind of water.&lt;br /&gt;
&lt;br /&gt;
==Trivia==&lt;br /&gt;
&lt;br /&gt;
Technically there are many different kinds of liquid water, based on the possible isotopes of hydrogen and oxygen atoms that its molecules are composed of. One of the most well known is {{w|heavy water}}, deuterium oxide, that is sometimes used in nuclear devices. There are 3 naturally-occurring {{w|isotopes of hydrogen}}&amp;lt;!-- including one of 'trace' quantities--&amp;gt;, with 6 possible combinations for its two atoms in a water molecule, and 4 naturally-occurring {{w|isotopes of oxygen}}&amp;lt;!-- including one of 'trace' quantities--&amp;gt;. This gives 6 × 4 = 24 kinds of naturally-occurring water molecules, which could be present in liquid water in any proportions. In ordinary water as found under mundane circumstances on Earth, 99.7% of all such molecules&amp;lt;!-- based upon given prevalences --&amp;gt; will be the 'normal' version of water: two atoms of &amp;lt;sup&amp;gt;1&amp;lt;/sup&amp;gt;H and one atom of &amp;lt;sup&amp;gt;16&amp;lt;/sup&amp;gt;O. (The isotopic ratios in &amp;quot;natural&amp;quot; water are relatively stable, so there's very little variation in water found in nature.) There are also synthetic isotopes of each, all radioactive, most having short half-lives&amp;lt;!-- as are the two 'trace' Hydrogen and Oxygen ones, so maybe it should be 2x3=6 kinds of stable water..?--&amp;gt;. How many of these could be used to constitute water would depend in part on one's definition of whether a molecule of water could be said to have been formed prior to the decay of its constituent atoms. Each isotopically-distinct version of water has very slightly different physical and chemical properties, though the differences are small and the versions hard to separate. (Separation is further complicated by the extremely rapid rate with which molecules in liquid water {{w|Grotthuss mechanism|exchange hydrogen ions (protons)}} between themselves.) The differences would not be at all important to a consumer-grade dehumidifier.{{cn}}&lt;br /&gt;
&lt;br /&gt;
As of when this comic was posted, there are also 26 known {{w|phases of ice}} (solid water), each of which could be made from any combination of the isotopically-distinct versions of water in any proportions. These might count as different &amp;quot;kinds of water&amp;quot;, and one was discovered in 2025; others may yet be discovered. Only one of these phases, Ice I&amp;lt;sub&amp;gt;h&amp;lt;/sub&amp;gt;, is likely to be found on an iced-over dehumidifier under normal conditions of use.&lt;br /&gt;
&lt;br /&gt;
In the {{w|Twin Earth thought experiment}}, there exists a second Earth (called Twin Earth), in every way identical to ours, except that there is no water as we know it. Instead, there is XYZ, a substance that is chemically distinct from water, but is experientially identical to water, and referred to by the inhabitants of Twin Earth as &amp;quot;water&amp;quot;. Surprisingly, this dehumidifier might be useful, if the manufacturer was also planning to sell it on Twin Earth.&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&amp;lt;noinclude&amp;gt;&lt;br /&gt;
[[Category: Comics featuring Cueball]]&lt;br /&gt;
[[Category: Comics featuring Hairy]]&lt;br /&gt;
[[Category: Internet]]&lt;/div&gt;</summary>
		<author><name>SMGmsgsgd</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=3109:_Dehumidifier&amp;diff=380916</id>
		<title>3109: Dehumidifier</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=3109:_Dehumidifier&amp;diff=380916"/>
				<updated>2025-07-07T09:16:43Z</updated>
		
		<summary type="html">&lt;p&gt;SMGmsgsgd: /* Explanation */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 3109&lt;br /&gt;
| date      = June 30, 2025&lt;br /&gt;
| title     = Dehumidifier&lt;br /&gt;
| image     = dehumidifier_2x.png&lt;br /&gt;
| imagesize = 295x327px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = It's important for devices to have internet connectivity so the manufacturer can patch remote exploits.&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
{{incomplete|This page was created WITHOUT INTERNET ACCESS. Don't remove this notice too soon.}}&lt;br /&gt;
&lt;br /&gt;
In this comic, [[Randall]] mocks the recent trend of various appliances, such as stoves and juicers, being connected to the internet even though one would expect them to be able to function without an internet connection. A {{w|dehumidifier}} removes moisture from the air. There are no obvious ways to improve dehumidifier operation without changes to its hardware. Modern machines are incapable of self-modifying their hardware &amp;quot;on the fly&amp;quot; - requiring electronic or mechanic intervention to modify, which doesn't require the machine to have internet connection. Practical self-modifying machines would, likely, require practical inorganic nanorobots to construct. Thus it's unclear what benefit being able to receive updates via the internet would confer. [[Cueball]]'s sarcastic reply underlines the unlikeliness of a situation occurring where an update would be necessary. The implication is that many of these internet-connected devices are examples of over-engineering a solution to do things 'because we can' or because it makes it sound advanced and therefore more desirable to the customer, rather than because it offers any real added value.&lt;br /&gt;
&lt;br /&gt;
Dehumidifiers ''can'' provide information which might be useful to access remotely. For instance, it might be helpful to know the level of water in the storage tank (which must be emptied when full), the percent of time the humidifier is paused for de-icing, a log of the humidity level over time, and whether the humidity exceeds a certain limit (which could indicate dehumidifier malfunction, or that the dehumidifier is inadequate to the conditions), though how actionable and urgent this information would be is debatable. A local wireless network connected via WiFi is a reasonable way to send this information to a user or to other local devices.  &lt;br /&gt;
&lt;br /&gt;
However, many devices like this now offer, or even require, connections to a special app or to the internet. They typically connect to servers run by the device's manufacturer. When that server goes away, the devices may stop working.&lt;br /&gt;
&lt;br /&gt;
The title text says that authorized internet access is required to patch remote {{w|Exploit (computer security)|exploits}} (i.e., harmful unauthorized access from the internet). If this is the only use case that requires internet access, it would be much simpler to remove the {{w|attack vector}} for remote exploits by not having it connected to the internet in the first place. The most likely source of remote access would probably be the remote updater itself. However, there are proofs-of-concept of devices being hacked through acoustic-based or light-based attacks (possibly through hacked speakers or even from outside the house), and a patch could possibly circumvent those attacks.&lt;br /&gt;
&lt;br /&gt;
&amp;quot;New kind of water&amp;quot; could refer to {{w|heavy water}}, {{w|tritiated water}}, {{w|doubly labeled water}}, {{w|hydronium}}, {{w|semiheavy water}}, {{w|deuterium-depleted water}}, or something which isn't detected/invented yet. However, dehumidifier is not supposed to remove it - so unless its hardware is modified, its effectiveness is questionable. It is also very hard to imagine a situation, in which vapors of &amp;quot;new kind of water&amp;quot; would end up in house in significant quantities; such &amp;quot;new waters&amp;quot; can cause irritation with minor residual injuries - being too weak to use as chemical weapons, yet too dangerous to be found in ordinary house - and such &amp;quot;new kinds of water&amp;quot; are mostly found in nuclear reactor facilities, having no everyday use for household, and don't appear naturally.&lt;br /&gt;
&lt;br /&gt;
Yet there ''is'' a method, which could allow to get positive results from built-in computer and WI-FI: gaining unrestricted access to device's internal computer, possibly via undocumented features or hacking. For example, to connect all household appliances into single distributed computation network, which could do useful computations (E.G. host a site; calculate chemical/biological reactions; mine cryptocurrency; initiate DDOS-attacks; run arbitrary programs; be used as ersatz PC; etc). Their inner data storage (flash drive, hard drive, etc) could be used to store all sorts of files, as extra disk space or for confidential data (since household appliances aren't ''meant'' to store arbitrary data or run arbitrary programs, they're unlikely to be attacked or searched). Their WI-Fi capability can be used to connect to Internet for arbitrary means, especially since they're likely to have their own IP-address (E.G. to hide identity; or if you don't have good internet at home); since their supposed function is to download updates, they should have access to variety of interesting places (E.G. the servers of their manufacturer, from which they download updates and to which send error messages). The problem with this, is that &amp;quot;smart&amp;quot; appliances are often comparable or weaker than micro-PCs (like &amp;quot;{{w|Raspberry Pi|Pi}}&amp;quot; variants) &amp;amp;mdash; while often costing more, than combination of normal appliance and Pi micro-PC &amp;amp;mdash; making such devices not viable for computations, unless user ''already'' has smart devices in his house.&lt;br /&gt;
&lt;br /&gt;
A related device was previously referred to in [[3044: Humidifier Review]], and the issue of possibly considering online protection of devices that (arguably) should not be so easily exploitable was looked at in [[463: Voting Machines]] and [[1966: Smart Home Security]]. Comic [[1912: Thermostat]] also deals with risks of adding computers to appliances.&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
: [A store salesman, [[Hairy]], is showing [[Cueball]] a dehumidifier with a &amp;quot;SALE&amp;quot; label on it. Several other unidentified devices, possibly other dehumidifier models, are shown in the store as well.]&lt;br /&gt;
&lt;br /&gt;
: Hairy: This dehumidifier model features built-in WiFi for remote updates.&lt;br /&gt;
: Cueball: Great! That will be really useful if they discover a new kind of water.&lt;br /&gt;
&lt;br /&gt;
==Trivia==&lt;br /&gt;
&lt;br /&gt;
Technically there are many different kinds of liquid water, based on the possible isotopes of hydrogen and oxygen atoms that its molecules are composed of. One of the most well known is {{w|heavy water}}, deuterium oxide, that is sometimes used in nuclear devices. There are 3 naturally-occurring {{w|isotopes of hydrogen}}&amp;lt;!-- including one of 'trace' quantities--&amp;gt;, with 6 possible combinations for its two atoms in a water molecule, and 4 naturally-occurring {{w|isotopes of oxygen}}&amp;lt;!-- including one of 'trace' quantities--&amp;gt;. This gives 6 × 4 = 24 kinds of naturally-occurring water molecules, which could be present in liquid water in any proportions. In ordinary water as found under mundane circumstances on Earth, 99.7% of all such molecules&amp;lt;!-- based upon given prevalences --&amp;gt; will be the 'normal' version of water: two atoms of &amp;lt;sup&amp;gt;1&amp;lt;/sup&amp;gt;H and one atom of &amp;lt;sup&amp;gt;16&amp;lt;/sup&amp;gt;O. (The isotopic ratios in &amp;quot;natural&amp;quot; water are relatively stable, so there's very little variation in water found in nature.) There are also synthetic isotopes of each, all radioactive, most having short half-lives&amp;lt;!-- as are the two 'trace' Hydrogen and Oxygen ones, so maybe it should be 2x3=6 kinds of stable water..?--&amp;gt;. How many of these could be used to constitute water would depend in part on one's definition of whether a molecule of water could be said to have been formed prior to the decay of its constituent atoms. Each isotopically-distinct version of water has very slightly different physical and chemical properties, though the differences are small and the versions hard to separate. (Separation is further complicated by the extremely rapid rate with which molecules in liquid water {{w|Grotthuss mechanism|exchange hydrogen ions (protons)}} between themselves.) The differences would not be at all important to a consumer-grade dehumidifier.{{cn}}&lt;br /&gt;
&lt;br /&gt;
As of when this comic was posted, there are also 26 known {{w|phases of ice}} (solid water), each of which could be made from any combination of the isotopically-distinct versions of water in any proportions. These might count as different &amp;quot;kinds of water&amp;quot;, and one was discovered in 2025; others may yet be discovered. Only one of these phases, Ice I&amp;lt;sub&amp;gt;h&amp;lt;/sub&amp;gt;, is likely to be found on an iced-over dehumidifier under normal conditions of use.&lt;br /&gt;
&lt;br /&gt;
In the {{w|Twin Earth thought experiment}}, there exists a second Earth (called Twin Earth), in every way identical to ours, except that there is no water as we know it. Instead, there is XYZ, a substance that is chemically distinct from water, but is experientially identical to water, and referred to by the inhabitants of Twin Earth as &amp;quot;water&amp;quot;. Surprisingly, this dehumidifier might be useful, if the manufacturer was also planning to sell it on Twin Earth.&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&amp;lt;noinclude&amp;gt;&lt;br /&gt;
[[Category: Comics featuring Cueball]]&lt;br /&gt;
[[Category: Comics featuring Hairy]]&lt;br /&gt;
[[Category: Internet]]&lt;/div&gt;</summary>
		<author><name>SMGmsgsgd</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=3109:_Dehumidifier&amp;diff=380902</id>
		<title>3109: Dehumidifier</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=3109:_Dehumidifier&amp;diff=380902"/>
				<updated>2025-07-06T17:50:01Z</updated>
		
		<summary type="html">&lt;p&gt;SMGmsgsgd: /* Explanation */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 3109&lt;br /&gt;
| date      = June 30, 2025&lt;br /&gt;
| title     = Dehumidifier&lt;br /&gt;
| image     = dehumidifier_2x.png&lt;br /&gt;
| imagesize = 295x327px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = It's important for devices to have internet connectivity so the manufacturer can patch remote exploits.&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
{{incomplete|This page was created WITHOUT INTERNET ACCESS. Don't remove this notice too soon.}}&lt;br /&gt;
&lt;br /&gt;
In this comic, [[Randall]] mocks the recent trend of various appliances, such as stoves and juicers, being connected to the internet even though one would expect them to be able to function without an internet connection. A {{w|dehumidifier}} removes moisture from the air. There are no obvious ways to improve dehumidifier operation without changes to its hardware. Modern machines are incapable of self-modifying their hardware &amp;quot;on the fly&amp;quot; - requiring electronic or mechanic intervention to modify, which doesn't require the machine to have internet connection. Practical self-modifying machines would, likely, require practical inorganic nanorobots to construct. Thus it's unclear what benefit being able to receive updates via the internet would confer. [[Cueball]]'s sarcastic reply underlines the unlikeliness of a situation occurring where an update would be necessary. The implication is that many of these internet-connected devices are examples of over-engineering a solution to do things 'because we can' or because it makes it sound advanced and therefore more desirable to the customer, rather than because it offers any real added value.&lt;br /&gt;
&lt;br /&gt;
Dehumidifiers ''can'' provide information which might be useful to access remotely. For instance, it might be helpful to know the level of water in the storage tank (which must be emptied when full), the percent of time the humidifier is paused for de-icing, a log of the humidity level over time, and whether the humidity exceeds a certain limit (which could indicate dehumidifier malfunction, or that the dehumidifier is inadequate to the conditions), though how actionable and urgent this information would be is debatable. A local wireless network connected via WiFi is a reasonable way to send this information to a user or to other local devices.  &lt;br /&gt;
&lt;br /&gt;
However, many devices like this now offer, or even require, connections to a special app or to the internet. They typically connect to servers run by the device's manufacturer. When that server goes away, the devices may stop working.&lt;br /&gt;
&lt;br /&gt;
The title text says that authorized internet access is required to patch remote {{w|Exploit (computer security)|exploits}} (i.e., harmful unauthorized access from the internet). If this is the only use case that requires internet access, it would be much simpler to remove the {{w|attack vector}} for remote exploits by not having it connected to the internet in the first place. The most likely source of remote access would probably be the remote updater itself. However, there are proofs-of-concept of devices being hacked through acoustic-based or light-based attacks (possibly through hacked speakers or even from outside the house), and a patch could possibly circumvent those attacks.&lt;br /&gt;
&lt;br /&gt;
&amp;quot;New kind of water&amp;quot; could refer to {{w|heavy water}}, {{w|tritiated water}}, {{w|doubly labeled water}}, {{w|hydronium}}, {{w|semiheavy water}}, {{w|deuterium-depleted water}}, or something which isn't detected/invented yet. However, dehumidifier is not supposed to remove it - so unless its hardware is modified, its effectiveness is questionable. It is also very hard to imagine a situation, in which vapors of &amp;quot;new kind of water&amp;quot; would end up in house in significant quantities; such &amp;quot;new waters&amp;quot; can cause irritation with minor residual injuries - being too weak to use as chemical weapons, yet too dangerous to be found in ordinary house - and such &amp;quot;new kinds of water&amp;quot; are mostly found in nuclear reactor facilities, having no everyday use for household, and don't appear naturally.&lt;br /&gt;
&lt;br /&gt;
Yet there ''is'' a method, which could allow to get positive results from built-in computer and WI-FI: gaining unrestricted access to device's internal computer, possibly via undocumented features or hacking. For example, to connect all household appliances into single distributed computation network, which could do useful computations (E.G. host a site; calculate chemical/biological reactions; mine cryptocurrency; initiate DDOS-attacks; run arbitrary programs; be used as ersatz PC; etc). Their inner data storage (flash drive, hard drive, etc) could be used to store all sorts of files, as extra disk space or for confidential data (since household appliances aren't ''meant'' to store arbitrary data or run arbitrary programs, they're unlikely to be attacked or searched). The problem with this, is that &amp;quot;smart&amp;quot; appliances are often weaker than micro-PC's (like &amp;quot;pie&amp;quot; variants) - while often costing more, than combination of normal appliance and &amp;quot;pie&amp;quot; micro-PC - making such devices not viable for computations, unless user ''already'' has smart devices in his house.&lt;br /&gt;
&lt;br /&gt;
A related device was previously referred to in [[3044: Humidifier Review]], and the issue of possibly considering online protection of devices that (arguably) should not be so easily exploitable was looked at in [[463: Voting Machines]] and [[1966: Smart Home Security]]. Comic [[1912: Thermostat]] also deals with risks of adding computers to appliances.&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
: [A store salesman, [[Hairy]], is showing [[Cueball]] a dehumidifier with a &amp;quot;SALE&amp;quot; label on it. Several other unidentified devices, possibly other dehumidifier models, are shown in the store as well.]&lt;br /&gt;
&lt;br /&gt;
: Hairy: This dehumidifier model features built-in WiFi for remote updates.&lt;br /&gt;
: Cueball: Great! That will be really useful if they discover a new kind of water.&lt;br /&gt;
&lt;br /&gt;
==Trivia==&lt;br /&gt;
&lt;br /&gt;
Technically there are many different kinds of liquid water, based on the possible isotopes of hydrogen and oxygen atoms that its molecules are composed of. One of the most well known is {{w|heavy water}}, deuterium oxide, that is sometimes used in nuclear devices. There are 3 naturally-occurring {{w|isotopes of hydrogen}}&amp;lt;!-- including one of 'trace' quantities--&amp;gt;, with 6 possible combinations for its two atoms in a water molecule, and 4 naturally-occurring {{w|isotopes of oxygen}}&amp;lt;!-- including one of 'trace' quantities--&amp;gt;. This gives 6 × 4 = 24 kinds of naturally-occurring water molecules, which could be present in liquid water in any proportions. In ordinary water as found under mundane circumstances on Earth, 99.7% of all such molecules&amp;lt;!-- based upon given prevalences --&amp;gt; will be the 'normal' version of water: two atoms of &amp;lt;sup&amp;gt;1&amp;lt;/sup&amp;gt;H and one atom of &amp;lt;sup&amp;gt;16&amp;lt;/sup&amp;gt;O. (The isotopic ratios in &amp;quot;natural&amp;quot; water are relatively stable, so there's very little variation in water found in nature.) There are also synthetic isotopes of each, all radioactive, most having short half-lives&amp;lt;!-- as are the two 'trace' Hydrogen and Oxygen ones, so maybe it should be 2x3=6 kinds of stable water..?--&amp;gt;. How many of these could be used to constitute water would depend in part on one's definition of whether a molecule of water could be said to have been formed prior to the decay of its constituent atoms. Each isotopically-distinct version of water has very slightly different physical and chemical properties, though the differences are small and the versions hard to separate. (Separation is further complicated by the extremely rapid rate with which molecules in liquid water {{w|Grotthuss mechanism|exchange hydrogen ions (protons)}} between themselves.) The differences would not be at all important to a consumer-grade dehumidifier.{{cn}}&lt;br /&gt;
&lt;br /&gt;
As of when this comic was posted, there are also 26 known {{w|phases of ice}} (solid water), each of which could be made from any combination of the isotopically-distinct versions of water in any proportions. These might count as different &amp;quot;kinds of water&amp;quot;, and one was discovered in 2025; others may yet be discovered. Only one of these phases, Ice I&amp;lt;sub&amp;gt;h&amp;lt;/sub&amp;gt;, is likely to be found on an iced-over dehumidifier under normal conditions of use.&lt;br /&gt;
&lt;br /&gt;
In the {{w|Twin Earth thought experiment}}, there exists a second Earth (called Twin Earth), in every way identical to ours, except that there is no water as we know it. Instead, there is XYZ, a substance that is chemically distinct from water, but is experientially identical to water, and referred to by the inhabitants of Twin Earth as &amp;quot;water&amp;quot;. Surprisingly, this dehumidifier might be useful, if the manufacturer was also planning to sell it on Twin Earth.&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&amp;lt;noinclude&amp;gt;&lt;br /&gt;
[[Category: Comics featuring Cueball]]&lt;br /&gt;
[[Category: Comics featuring Hairy]]&lt;br /&gt;
[[Category: Internet]]&lt;/div&gt;</summary>
		<author><name>SMGmsgsgd</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=3109:_Dehumidifier&amp;diff=380901</id>
		<title>3109: Dehumidifier</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=3109:_Dehumidifier&amp;diff=380901"/>
				<updated>2025-07-06T17:48:36Z</updated>
		
		<summary type="html">&lt;p&gt;SMGmsgsgd: /* Explanation */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 3109&lt;br /&gt;
| date      = June 30, 2025&lt;br /&gt;
| title     = Dehumidifier&lt;br /&gt;
| image     = dehumidifier_2x.png&lt;br /&gt;
| imagesize = 295x327px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = It's important for devices to have internet connectivity so the manufacturer can patch remote exploits.&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
{{incomplete|This page was created WITHOUT INTERNET ACCESS. Don't remove this notice too soon.}}&lt;br /&gt;
&lt;br /&gt;
In this comic, [[Randall]] mocks the recent trend of various appliances, such as stoves and juicers, being connected to the internet even though one would expect them to be able to function without an internet connection. A {{w|dehumidifier}} removes moisture from the air. There are no obvious ways to improve dehumidifier operation without changes to its hardware. Modern machines are incapable of self-modifying their hardware &amp;quot;on the fly&amp;quot; - requiring electronic or mechanic intervention to modify, which doesn't require the machine to have internet connection. Practical self-modifying machines would, likely, require practical inorganic nanorobots to construct. Thus it's unclear what benefit being able to receive updates via the internet would confer. [[Cueball]]'s sarcastic reply underlines the unlikeliness of a situation occurring where an update would be necessary. The implication is that many of these internet-connected devices are examples of over-engineering a solution to do things 'because we can' or because it makes it sound advanced and therefore more desirable to the customer, rather than because it offers any real added value.&lt;br /&gt;
&lt;br /&gt;
Dehumidifiers ''can'' provide information which might be useful to access remotely. For instance, it might be helpful to know the level of water in the storage tank (which must be emptied when full), the percent of time the humidifier is paused for de-icing, a log of the humidity level over time, and whether the humidity exceeds a certain limit (which could indicate dehumidifier malfunction, or that the dehumidifier is inadequate to the conditions), though how actionable and urgent this information would be is debatable. A local wireless network connected via WiFi is a reasonable way to send this information to a user or to other local devices.  &lt;br /&gt;
&lt;br /&gt;
However, many devices like this now offer, or even require, connections to a special app or to the internet. They typically connect to servers run by the device's manufacturer. When that server goes away, the devices may stop working.&lt;br /&gt;
&lt;br /&gt;
The title text says that authorized internet access is required to patch remote {{w|Exploit (computer security)|exploits}} (i.e., harmful unauthorized access from the internet). If this is the only use case that requires internet access, it would be much simpler to remove the {{w|attack vector}} for remote exploits by not having it connected to the internet in the first place. The most likely source of remote access would probably be the remote updater itself. However, there are proofs-of-concept of devices being hacked through acoustic-based or light-based attacks (possibly through hacked speakers or even from outside the house), and a patch could possibly circumvent those attacks.&lt;br /&gt;
&lt;br /&gt;
&amp;quot;New kind of water&amp;quot; could refer to {{w|heavy water}}, {{w|tritiated water}}, {{w|doubly labeled water}}, {{w|hydronium}}, {{w|semiheavy water}}, {{w|deuterium-depleted water}}, or something which isn't detected/invented yet. However, dehumidifier is not supposed to remove it - so unless its hardware is modified, its effectiveness is questionable. It is also very hard to imagine a situation, in which vapors of &amp;quot;new kind of water&amp;quot; would end up in house in significant quantities; such &amp;quot;new waters&amp;quot; can cause irritation with minor residual injuries - being too weak to use as chemical weapons, yet too dangerous to be found in ordinary house - and such &amp;quot;new kinds of water&amp;quot; are mostly found in nuclear reactor facilities, having no everyday use for household, and don't appear naturally.&lt;br /&gt;
&lt;br /&gt;
Yet there ''is'' a method, which could allow to get positive results from built-in computer and WI-FI: gaining unrestricted access to device's internal computer, possibly via undocumented features or hacking. For example, to connect all household appliances into single distributed computation network, which could do useful computations (E.G. host a site; calculate chemical/biological reactions; mine cryptocurrency; initiate DDOS-attacks; run arbitrary programs; etc). Their inner data storage (flash drive, hard drive, etc) could be used to store all sorts of files, as extra disk space or for confidential data (since household appliances aren't ''meant'' to store arbitrary data or run arbitrary programs, they're unlikely to be attacked or searched). The problem with this, is that &amp;quot;smart&amp;quot; appliances are often weaker than micro-PC's (like &amp;quot;pie&amp;quot; variants) - while often costing more, than combination of normal appliance and &amp;quot;pie&amp;quot; micro-PC - making such devices not viable for computations, unless user ''already'' has smart devices in his house.&lt;br /&gt;
&lt;br /&gt;
A related device was previously referred to in [[3044: Humidifier Review]], and the issue of possibly considering online protection of devices that (arguably) should not be so easily exploitable was looked at in [[463: Voting Machines]] and [[1966: Smart Home Security]]. Comic [[1912: Thermostat]] also deals with risks of adding computers to appliances.&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
: [A store salesman, [[Hairy]], is showing [[Cueball]] a dehumidifier with a &amp;quot;SALE&amp;quot; label on it. Several other unidentified devices, possibly other dehumidifier models, are shown in the store as well.]&lt;br /&gt;
&lt;br /&gt;
: Hairy: This dehumidifier model features built-in WiFi for remote updates.&lt;br /&gt;
: Cueball: Great! That will be really useful if they discover a new kind of water.&lt;br /&gt;
&lt;br /&gt;
==Trivia==&lt;br /&gt;
&lt;br /&gt;
Technically there are many different kinds of liquid water, based on the possible isotopes of hydrogen and oxygen atoms that its molecules are composed of. One of the most well known is {{w|heavy water}}, deuterium oxide, that is sometimes used in nuclear devices. There are 3 naturally-occurring {{w|isotopes of hydrogen}}&amp;lt;!-- including one of 'trace' quantities--&amp;gt;, with 6 possible combinations for its two atoms in a water molecule, and 4 naturally-occurring {{w|isotopes of oxygen}}&amp;lt;!-- including one of 'trace' quantities--&amp;gt;. This gives 6 × 4 = 24 kinds of naturally-occurring water molecules, which could be present in liquid water in any proportions. In ordinary water as found under mundane circumstances on Earth, 99.7% of all such molecules&amp;lt;!-- based upon given prevalences --&amp;gt; will be the 'normal' version of water: two atoms of &amp;lt;sup&amp;gt;1&amp;lt;/sup&amp;gt;H and one atom of &amp;lt;sup&amp;gt;16&amp;lt;/sup&amp;gt;O. (The isotopic ratios in &amp;quot;natural&amp;quot; water are relatively stable, so there's very little variation in water found in nature.) There are also synthetic isotopes of each, all radioactive, most having short half-lives&amp;lt;!-- as are the two 'trace' Hydrogen and Oxygen ones, so maybe it should be 2x3=6 kinds of stable water..?--&amp;gt;. How many of these could be used to constitute water would depend in part on one's definition of whether a molecule of water could be said to have been formed prior to the decay of its constituent atoms. Each isotopically-distinct version of water has very slightly different physical and chemical properties, though the differences are small and the versions hard to separate. (Separation is further complicated by the extremely rapid rate with which molecules in liquid water {{w|Grotthuss mechanism|exchange hydrogen ions (protons)}} between themselves.) The differences would not be at all important to a consumer-grade dehumidifier.{{cn}}&lt;br /&gt;
&lt;br /&gt;
As of when this comic was posted, there are also 26 known {{w|phases of ice}} (solid water), each of which could be made from any combination of the isotopically-distinct versions of water in any proportions. These might count as different &amp;quot;kinds of water&amp;quot;, and one was discovered in 2025; others may yet be discovered. Only one of these phases, Ice I&amp;lt;sub&amp;gt;h&amp;lt;/sub&amp;gt;, is likely to be found on an iced-over dehumidifier under normal conditions of use.&lt;br /&gt;
&lt;br /&gt;
In the {{w|Twin Earth thought experiment}}, there exists a second Earth (called Twin Earth), in every way identical to ours, except that there is no water as we know it. Instead, there is XYZ, a substance that is chemically distinct from water, but is experientially identical to water, and referred to by the inhabitants of Twin Earth as &amp;quot;water&amp;quot;. Surprisingly, this dehumidifier might be useful, if the manufacturer was also planning to sell it on Twin Earth.&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&amp;lt;noinclude&amp;gt;&lt;br /&gt;
[[Category: Comics featuring Cueball]]&lt;br /&gt;
[[Category: Comics featuring Hairy]]&lt;br /&gt;
[[Category: Internet]]&lt;/div&gt;</summary>
		<author><name>SMGmsgsgd</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=3109:_Dehumidifier&amp;diff=380900</id>
		<title>3109: Dehumidifier</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=3109:_Dehumidifier&amp;diff=380900"/>
				<updated>2025-07-06T17:47:39Z</updated>
		
		<summary type="html">&lt;p&gt;SMGmsgsgd: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 3109&lt;br /&gt;
| date      = June 30, 2025&lt;br /&gt;
| title     = Dehumidifier&lt;br /&gt;
| image     = dehumidifier_2x.png&lt;br /&gt;
| imagesize = 295x327px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = It's important for devices to have internet connectivity so the manufacturer can patch remote exploits.&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
{{incomplete|This page was created WITHOUT INTERNET ACCESS. Don't remove this notice too soon.}}&lt;br /&gt;
&lt;br /&gt;
In this comic, [[Randall]] mocks the recent trend of various appliances, such as stoves and juicers, being connected to the internet even though one would expect them to be able to function without an internet connection. A {{w|dehumidifier}} removes moisture from the air. There are no obvious ways to improve dehumidifier operation without changes to its hardware. Modern machines are incapable of self-modifying their hardware &amp;quot;on the fly&amp;quot; - requiring electronic or mechanic intervention to modify, which doesn't require the machine to have internet connection. Practical self-modifying machines would, likely, require practical inorganic nanorobots to construct. Thus it's unclear what benefit being able to receive updates via the internet would confer. [[Cueball]]'s sarcastic reply underlines the unlikeliness of a situation occurring where an update would be necessary. The implication is that many of these internet-connected devices are examples of over-engineering a solution to do things 'because we can' or because it makes it sound advanced and therefore more desirable to the customer, rather than because it offers any real added value.&lt;br /&gt;
&lt;br /&gt;
Dehumidifiers ''can'' provide information which might be useful to access remotely. For instance, it might be helpful to know the level of water in the storage tank (which must be emptied when full), the percent of time the humidifier is paused for de-icing, a log of the humidity level over time, and whether the humidity exceeds a certain limit (which could indicate dehumidifier malfunction, or that the dehumidifier is inadequate to the conditions), though how actionable and urgent this information would be is debatable. A local wireless network connected via WiFi is a reasonable way to send this information to a user or to other local devices.  &lt;br /&gt;
&lt;br /&gt;
However, many devices like this now offer, or even require, connections to a special app or to the internet. They typically connect to servers run by the device's manufacturer. When that server goes away, the devices may stop working.&lt;br /&gt;
&lt;br /&gt;
The title text says that authorized internet access is required to patch remote {{w|Exploit (computer security)|exploits}} (i.e., harmful unauthorized access from the internet). If this is the only use case that requires internet access, it would be much simpler to remove the {{w|attack vector}} for remote exploits by not having it connected to the internet in the first place. The most likely source of remote access would probably be the remote updater itself. However, there are proofs-of-concept of devices being hacked through acoustic-based or light-based attacks (possibly through hacked speakers or even from outside the house), and a patch could possibly circumvent those attacks.&lt;br /&gt;
&lt;br /&gt;
&amp;quot;New kind of water&amp;quot; could refer to {{w|heavy water}}, {{w|tritiated water}}, {{w|doubly labeled water}}, {{w|hydronium}}, {{w|semiheavy water}}, {{w|deuterium-depleted water}}, or something which isn't detected/invented yet. However, dehumidifier is not supposed to remove it - so unless its hardware is modified, its effectiveness is questionable. It is also very hard to imagine a situation, in which vapors of &amp;quot;new kind of water&amp;quot; would end up in house in significant quantities; such &amp;quot;new waters&amp;quot; can cause irritation with minor residual injuries - being too weak to use as chemical weapons, yet too dangerous to be found in ordinary house - and such &amp;quot;new kinds of water&amp;quot; are mostly found in nuclear reactor facilities, having no everyday use for household, and don't appear naturally.&lt;br /&gt;
&lt;br /&gt;
Yet there ''is'' a method, which could allow to get positive results from built-in computer and WI-FI: gaining unrestricted access to device's internal computer, possibly via undocumented features or hacking. For example, to connect all household appliances into single distributed computation network, which could do useful computations (E.G. host a site; calculate chemical/biological reactions; mine cryptocurrency; initiate DDOS-attacks; run arbitrary programs; etc). Their inner data storage (flash drive, hard drive, etc) could be used to store all sorts of files, as extra disk space or for confidential data (since household appliances aren't ''mean'' to store arbitrary data or run arbitrary programs, they're unlikely to be attacked or searched). The problem with this, is that &amp;quot;smart&amp;quot; appliances are often weaker than micro-PC's (like &amp;quot;pie&amp;quot; variants) - while often costing more, than combination of normal appliance and &amp;quot;pie&amp;quot; micro-PC - making such devices not viable for computations, unless user ''already'' has smart devices in his house.&lt;br /&gt;
&lt;br /&gt;
A related device was previously referred to in [[3044: Humidifier Review]], and the issue of possibly considering online protection of devices that (arguably) should not be so easily exploitable was looked at in [[463: Voting Machines]] and [[1966: Smart Home Security]]. Comic [[1912: Thermostat]] also deals with risks of adding computers to appliances.&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
: [A store salesman, [[Hairy]], is showing [[Cueball]] a dehumidifier with a &amp;quot;SALE&amp;quot; label on it. Several other unidentified devices, possibly other dehumidifier models, are shown in the store as well.]&lt;br /&gt;
&lt;br /&gt;
: Hairy: This dehumidifier model features built-in WiFi for remote updates.&lt;br /&gt;
: Cueball: Great! That will be really useful if they discover a new kind of water.&lt;br /&gt;
&lt;br /&gt;
==Trivia==&lt;br /&gt;
&lt;br /&gt;
Technically there are many different kinds of liquid water, based on the possible isotopes of hydrogen and oxygen atoms that its molecules are composed of. One of the most well known is {{w|heavy water}}, deuterium oxide, that is sometimes used in nuclear devices. There are 3 naturally-occurring {{w|isotopes of hydrogen}}&amp;lt;!-- including one of 'trace' quantities--&amp;gt;, with 6 possible combinations for its two atoms in a water molecule, and 4 naturally-occurring {{w|isotopes of oxygen}}&amp;lt;!-- including one of 'trace' quantities--&amp;gt;. This gives 6 × 4 = 24 kinds of naturally-occurring water molecules, which could be present in liquid water in any proportions. In ordinary water as found under mundane circumstances on Earth, 99.7% of all such molecules&amp;lt;!-- based upon given prevalences --&amp;gt; will be the 'normal' version of water: two atoms of &amp;lt;sup&amp;gt;1&amp;lt;/sup&amp;gt;H and one atom of &amp;lt;sup&amp;gt;16&amp;lt;/sup&amp;gt;O. (The isotopic ratios in &amp;quot;natural&amp;quot; water are relatively stable, so there's very little variation in water found in nature.) There are also synthetic isotopes of each, all radioactive, most having short half-lives&amp;lt;!-- as are the two 'trace' Hydrogen and Oxygen ones, so maybe it should be 2x3=6 kinds of stable water..?--&amp;gt;. How many of these could be used to constitute water would depend in part on one's definition of whether a molecule of water could be said to have been formed prior to the decay of its constituent atoms. Each isotopically-distinct version of water has very slightly different physical and chemical properties, though the differences are small and the versions hard to separate. (Separation is further complicated by the extremely rapid rate with which molecules in liquid water {{w|Grotthuss mechanism|exchange hydrogen ions (protons)}} between themselves.) The differences would not be at all important to a consumer-grade dehumidifier.{{cn}}&lt;br /&gt;
&lt;br /&gt;
As of when this comic was posted, there are also 26 known {{w|phases of ice}} (solid water), each of which could be made from any combination of the isotopically-distinct versions of water in any proportions. These might count as different &amp;quot;kinds of water&amp;quot;, and one was discovered in 2025; others may yet be discovered. Only one of these phases, Ice I&amp;lt;sub&amp;gt;h&amp;lt;/sub&amp;gt;, is likely to be found on an iced-over dehumidifier under normal conditions of use.&lt;br /&gt;
&lt;br /&gt;
In the {{w|Twin Earth thought experiment}}, there exists a second Earth (called Twin Earth), in every way identical to ours, except that there is no water as we know it. Instead, there is XYZ, a substance that is chemically distinct from water, but is experientially identical to water, and referred to by the inhabitants of Twin Earth as &amp;quot;water&amp;quot;. Surprisingly, this dehumidifier might be useful, if the manufacturer was also planning to sell it on Twin Earth.&lt;br /&gt;
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{{comic discussion}}&amp;lt;noinclude&amp;gt;&lt;br /&gt;
[[Category: Comics featuring Cueball]]&lt;br /&gt;
[[Category: Comics featuring Hairy]]&lt;br /&gt;
[[Category: Internet]]&lt;/div&gt;</summary>
		<author><name>SMGmsgsgd</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=Talk:2657:_Complex_Vowels&amp;diff=380858</id>
		<title>Talk:2657: Complex Vowels</title>
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				<updated>2025-07-04T19:46:42Z</updated>
		
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&lt;div&gt;&amp;lt;!--Please sign your posts with ~~~~ and don't delete this text. New comments should be added at the bottom.--&amp;gt;&lt;br /&gt;
Spoken symbol bears resemblance to 🜏, https://en.wiktionary.org/wiki/%F0%9F%9C%8F&lt;br /&gt;
:Not really, it's closer to 'əG.' [[Special:Contributions/172.69.33.25|172.69.33.25]] 01:15, 11 August 2022 (UTC)&lt;br /&gt;
::Looks like ꬱ to me. Plus some diacritics sprinkled over it, of course. It does look ''similar'' to 🜏 when you include the zalgo. [[Special:Contributions/172.71.98.99|172.71.98.99]] 06:53, 11 August 2022 (UTC)&lt;br /&gt;
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sscchhwwaa is easy, say it like the x in &amp;quot;fire&amp;quot; and the silent p in &amp;quot;bath&amp;quot;[[Special:Contributions/172.70.85.13|172.70.85.13]] 21:42, 10 August 2022 (UTC)&lt;br /&gt;
:What? There is no 'x' in &amp;quot;fire.&amp;quot; [[Special:Contributions/172.69.33.25|172.69.33.25]] 01:17, 11 August 2022 (UTC)&lt;br /&gt;
::Yes there is, it's the -6th letter! [[User:Certified_nqh|Me]]&amp;lt;sup&amp;gt;&amp;amp;#91;[[285: Wikipedian Protester|''citation needed'']]&amp;amp;#93;[[Category:Pages using the &amp;quot;citation needed&amp;quot; template]]&amp;lt;/sup&amp;gt; 16:53, 11 September 2023 (UTC)&lt;br /&gt;
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Ideas: bellows-, reed-, and lucite-based voiced phone production tracts typical in science museums; {{w|diphone}}s as an alternative to phomemes (a diphone is the second half of one phoneme followed by the first half of the next -- NOT two adjacent phomemes as the Wikipedia article claims. Two adjacent phomemes are a biphone, not a diphone); the relationship of the position of the tongue in two dimensional place &amp;amp;times; closedeness space to the fundamental and second {{w|formant}} frequencies of speech audio; {{w|diphthong}}s; {{w|Mel-frequency cepstrum|cepstral}} representation such as {{w|MFCC|mel-frequency ceptstral coefficients}}; and {{w|Zalgo text}} IPA. [[Special:Contributions/172.70.206.213|172.70.206.213]] 22:41, 10 August 2022 (UTC)&lt;br /&gt;
: Roger. [[Special:Contributions/172.69.33.149|172.69.33.149]] 03:25, 11 August 2022 (UTC)&lt;br /&gt;
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The vowelspace is depicted in two dimensions for convenience, but it has at least three dimensions. Look at the IPA vowel diagram (already added to this page). The third dimension is roundedness.&lt;br /&gt;
:Yes, of the lips; apart from the two dimensions (out: place, and up: closedeness) of the tongue. [[Special:Contributions/172.70.206.95|172.70.206.95]] 22:59, 10 August 2022 (UTC)&lt;br /&gt;
::Does roundedness also involve the tongue and cheeks to any extent? [[Special:Contributions/172.69.33.199|172.69.33.199]] 23:36, 10 August 2022 (UTC)&lt;br /&gt;
:I wonder if Randall is doing this similarly to the way physicists present space-time diagrams with only 2 dimensions of space. We can visualize 3 dimensions using projections on 2-dimensional images, but it's hard to visualize 4 dimensions. [[User:Barmar|Barmar]] ([[User talk:Barmar|talk]]) 15:18, 11 August 2022 (UTC)&lt;br /&gt;
::If you can't visualize 4-D, play tennis. [[Special:Contributions/172.69.34.58|172.69.34.58]] 03:15, 12 August 2022 (UTC)&lt;br /&gt;
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This comics reminds me of two good YouTube videos about IPA and vowels: Tom Scott's [https://www.youtube.com/watch?v=9uZam0ubq-Y The Language Sounds That Could Exist, But Don't] and Dr Geoff Lindsey '''[https://www.youtube.com/watch?v=FdldD0-kEcc The Vowel Space]''' - in the latter the replacement for the mentioned IPA's vowel diagram is proposed, with two dimensions being simply the ratio of two main harmonic components; here the third dimension is sometimes needed to better depict some existing vowels. --[[User:JakubNarebski|JakubNarebski]] ([[User talk:JakubNarebski|talk]]) 08:50, 27 May 2023 (UTC)&lt;br /&gt;
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This linguist character has appeared 3 times now. Will there be a new character page dedicated to Gretchen or &amp;quot;The Linguist&amp;quot;? [[Special:Contributions/172.69.33.225|172.69.33.225]] 00:21, 11 August 2022 (UTC)&lt;br /&gt;
:I second this motion. I think it would make more sense to have a generic character called &amp;quot;the Linguist&amp;quot; since, as the explanation for 2381 points out, not every linguist in xkcd is necessarily Gretchen. Plus, it seems like with this comic he's varied the artistic style, with the hair looking slightly less frizzy. [[Special:Contributions/172.69.248.143|172.69.248.143]] 22:15, 11 August 2022 (UTC)&lt;br /&gt;
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Can someone please create and paste in a zalgostring for the fancy 'əG' ligature shown twice in the comic? [[Special:Contributions/172.70.211.134|172.70.211.134]] 01:10, 11 August 2022 (UTC)&lt;br /&gt;
:Is this another example of Randall trolling Explainxkcd as in [[2619: Crêpe]]? [[Special:Contributions/172.69.33.37|172.69.33.37]] 01:45, 11 August 2022 (UTC)&lt;br /&gt;
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: This is the best I could do ə ̯̣̌̄̊̇c̵. I added the zalgo marks to a narrow no-break space in between the schwa and a &amp;quot;c&amp;quot; with a line over it (there's no reverse schwa apparently). Obviously it's not a perfect match, but I think that's sort of the point of this comic. [[User:RDiMartino|RDiMartino]] ([[User talk:RDiMartino|talk]]) 15:31, 12 August 2022 (UTC)&lt;br /&gt;
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: ꬱ̯̣̌̄̊̇ would work if only I could get the diacritics centered.&lt;br /&gt;
[[User:Heleatunda|Heleatunda]] ([[User talk:Heleatunda|talk]]) 01:16, 23 November 2022 (UTC)&lt;br /&gt;
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Someone please remind me how to Zalgo a top horizontal bar over √-1. [[Special:Contributions/172.70.211.134|172.70.211.134]] 02:34, 11 August 2022 (UTC)&lt;br /&gt;
: Slow way = Windows Character Map --&amp;gt; Group by: unicode subrange... Group By: Combining Diacritical Marks. 6th character from the top left (U+0305:Overline) yields √-̅1̅.&lt;br /&gt;
:Fast way = HTML character entities, ''{character it combines with}&amp;amp;#{character number code};'' (773:Overline) yields √-&amp;amp;#773;1&amp;amp;#773;&lt;br /&gt;
:Ignore other codes as they are either non-combining or have height relative to combining character (ie Macron) -- [[Special:Contributions/172.69.70.201|172.69.70.201]] 04:35, 11 August 2022 (UTC)&lt;br /&gt;
::Are you sure? Those aren't wide enough to connect along the top for me. [[Special:Contributions/172.69.34.10|172.69.34.10]] 07:57, 11 August 2022 (UTC)&lt;br /&gt;
::[same person as previous above] looks great now, let me check innthe browser that it had issues in.... [[Special:Contributions/172.70.214.45|172.70.214.45]] 02:24, 12 August 2022 (UTC)&lt;br /&gt;
:::[different person...] It's never looked Ok for me, on multiple browsers and platforms it always rendered as two separate overstrikes, and even the first does not connect to the √ bit. As an extended root-overstrike is more useful for visually bracketting ambiguities, like the central bit in &amp;quot;(-b±√(b²-4ac))/(2a)&amp;quot; I consider it superfluous for what would be &amp;quot;√(-1)&amp;quot; but cannot be &amp;quot;√(-).1&amp;quot;. Nice try, though.&lt;br /&gt;
:::Related, I've exchanged &amp;quot;&amp;lt;sup&amp;gt;1&amp;lt;/sup&amp;gt;/&amp;lt;sub&amp;gt;2&amp;lt;/sub&amp;gt;&amp;quot; for ½. On this device it looks similar (slanted numerator/denominator bar and still an offset, unlike the drawn comic which is vertically aligned), but it might look better or even direct over-under with the correct font rendered into. And, like the former, probably ''read'' better as screen-readers process the Transcript for the visually impaired.&lt;br /&gt;
:::If it weren't for that latter point, I'd take the idea used in [[2614]] for the in-Explanation &amp;lt;table style=&amp;quot;display: inline-table; line-height: 0.6em; vertical-align: middle; font-size:7pt; text-size-adjust: none;&amp;quot;&amp;gt;&amp;lt;tr&amp;gt;&amp;lt;td&amp;gt;2&amp;lt;/td&amp;gt;&amp;lt;/tr&amp;gt;&amp;lt;tr&amp;gt;&amp;lt;td&amp;gt;2&amp;lt;/td&amp;gt;&amp;lt;/tr&amp;gt;&amp;lt;/table&amp;gt; (&amp;lt;code&amp;gt;&amp;lt;nowiki&amp;gt;&amp;lt;table style=&amp;quot;display: inline-table; line-height: 0.6em; vertical-align: middle; font-size:7pt; text-size-adjust: none;&amp;quot;&amp;gt;&amp;lt;tr&amp;gt;&amp;lt;td&amp;gt;2&amp;lt;/td&amp;gt;&amp;lt;/tr&amp;gt;&amp;lt;tr&amp;gt;&amp;lt;td&amp;gt;2&amp;lt;/td&amp;gt;&amp;lt;/tr&amp;gt;&amp;lt;/table&amp;gt;&amp;lt;/nowiki&amp;gt;&amp;lt;/code&amp;gt;) and put it as: &amp;lt;table style=&amp;quot;display: inline-table; line-height: 0.6em; vertical-align: middle; font-size:7pt; text-size-adjust: none;&amp;quot;&amp;gt;&amp;lt;tr&amp;gt;&amp;lt;td&amp;gt;&amp;lt;u&amp;gt;1&amp;lt;/u&amp;gt;&amp;lt;/td&amp;gt;&amp;lt;/tr&amp;gt;&amp;lt;tr&amp;gt;&amp;lt;td&amp;gt;2&amp;lt;/td&amp;gt;&amp;lt;/tr&amp;gt;&amp;lt;/table&amp;gt; [[Special:Contributions/172.70.85.221|172.70.85.221]] 10:41, 12 August 2022 (UTC)&lt;br /&gt;
:::Ok, back to the 'root' bit: the (Explanation, not Transcript) current use of &amp;lt;code&amp;gt;&amp;lt;nowiki&amp;gt;√&amp;lt;span style=&amp;quot;border-top: 1px solid currentColor&amp;quot;&amp;gt;-1&amp;lt;/span&amp;gt;&amp;lt;/nowiki&amp;gt;&amp;lt;/code&amp;gt; is ok''ish'' but hovers the line above the &amp;quot;√&amp;quot; top by about ¾ of the initial down-tick's height (as rendered here... Chrome on Android, for reference), which is clearly not pixel-perfect. Maybe this is an outlier (obscure browser and OS that applies to hardly anyone, right?) so not gonna edit it away, but &amp;quot;√-1&amp;quot; is already unambiguous for anyone who knows what &amp;quot;√&amp;quot; is actually used for. Do we absolutely ''need'' to solve this rendering problem at all? At least until we persuade Unicode to release a special arbitrary-width over-kerning version of the √-character. [[Special:Contributions/172.70.162.77|172.70.162.77]] 09:09, 15 August 2022 (UTC)&lt;br /&gt;
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I don’t think what Randall is trying to do is provide a “roundness” dimension, but that’s how the explanation reads to me right now (“such” a dimension, e.g.) [[User:Szeth Pancakes|Szeth Pancakes]] ([[User talk:Szeth Pancakes|talk]]) 05:13, 11 August 2022 (UTC)&lt;br /&gt;
: Agreed - rearranged it a bit to deal with the real-life dimensions first, then be more explicit that the proposal is to add to the existing dimensions in a way analogous to how imaginary numbers expand the domain of real numbers. [[Special:Contributions/172.70.91.128|172.70.91.128]] 08:19, 11 August 2022 (UTC)&lt;br /&gt;
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Being an Englishman of a certain age, I had a panic flash back to the ITA. [[User:Arachrah|Arachrah]] ([[User talk:Arachrah|talk]]) 12:55, 11 August 2022 (UTC)&lt;br /&gt;
:What was wrong with the Independant Television Authority?&lt;br /&gt;
:(Seriously, though, the Initial Teaching Alphabet was very bad... It insisted that &amp;quot;book&amp;quot; had a different vowel in it to &amp;quot;up&amp;quot;, contrary to everyone's experience, including the teacher who tried to use it. - Ironically, though, when a few years later we were in 'big school' and being taught our first French lesson we got confused by being told at the very start that the words &amp;quot;''un''&amp;quot; and &amp;quot;''une''&amp;quot; (written on the board) were the equivalent to the English word &amp;quot;uh&amp;quot; (spoken)... Uh? What's &amp;quot;uh&amp;quot;?... &amp;quot;You know, as in 'uh book', 'uh table', 'uh chair'...&amp;quot;) [[Special:Contributions/172.70.85.13|172.70.85.13]] 14:37, 11 August 2022 (UTC)&lt;br /&gt;
::I'm curious how you pronounce them if they *aren't* different vowels: is it uhp and b'uhk (^p and b^k in IPA), the Near-close near-back rounded vowel (not sure how to describe it or get the upside down omega to render, or something entirely different? [[Special:Contributions/172.70.131.126|172.70.131.126]] 21:57, 11 August 2022 (UTC)&lt;br /&gt;
:::Quite possibly, but I'm never entirely confident that I have the right impression of what a given IPA means, from my particular regional accent as a baseline. Definitely the same (excepting the phonemic ending each of &amp;quot;-uck/-upp&amp;quot; and the presence or not of another initial element).&lt;br /&gt;
:::A good comparative linguist could probably name the various zones (encompassed by various isogloss lines) where this is true. And, by actually hearing me, perhaps narrow down the one from which I actually hail, quite accurately. At least one set of my grandparents always said &amp;quot;book&amp;quot; (or &amp;quot;look&amp;quot;) more like the longer &amp;quot;ew&amp;quot; than &amp;quot;uh&amp;quot;, and they were pretty much always local to another town just 10-15 miles away from the one of my own birth/upbringing (don't remember much of the other grandparents, but they were also from a village more in the other area than my own, but making an almost equilateral triangle on the map). Traces of this kind of 'elsewhere' accent from my parents probably did make me stand out a little bit from my &amp;quot;nth generation local&amp;quot; peers. But still up≈book applies.&lt;br /&gt;
:::If I had a cat, by now it would be staring up at me, wondering why I've been saying &amp;quot;up book book up look whup uck luck suck tuck muck Krup ... (etc)&amp;quot; to myself, trying to detect any changes and all similarities. While imaging myself in various social situations that demand broader or more RPified pronunciations... ;) ((Plus trying to calculate my exact tongue-placement/etc.)) [[Special:Contributions/141.101.99.242|141.101.99.242]] 23:09, 11 August 2022 (UTC)&lt;br /&gt;
:Blast from the past! I remember ITA from when I was in elementary school on Long Island in the 60's. In my later years I frequently confused this with IPA. [[User:Barmar|Barmar]] ([[User talk:Barmar|talk]]) 15:18, 11 August 2022 (UTC)&lt;br /&gt;
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Not sure what the text &amp;quot;There is one unique such function and the new mathematics is consistent.&amp;quot; - in current version, with similarly bad historic variations - is supposed to mean. The point of sqrt(-1) is that it never had a valid result on the Real number-line, and only by imagining a non-real dimension can you start to work with such a number (alone or in combination with real values) with a consistency that allows even nth-roots and exponentiation. The &amp;quot;unique (...) function&amp;quot; bit sounds strange. And note that -1 does ''not'' have a single unique root (which I can't help feeling is what is trying to be said, still)... its two roots are i and -i, for much the same reason that sqrt(1)=±1. But maybe the statement I'm wondering about is written under some branch of functional number-theory that I'm not familiar with, so could the relevent editor(s) please do it in a way that won't so confuse/trouble me or mislead others? [[Special:Contributions/172.70.91.80|172.70.91.80]] 22:03, 11 August 2022 (UTC)&lt;br /&gt;
:Done. [[Special:Contributions/172.69.34.58|172.69.34.58]] 23:09, 11 August 2022 (UTC)&lt;br /&gt;
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Since when does a completely generic orthogonal projection from 2- to 3-D invoke the Gell-Mann quark model? Unicode needs a glyph to tell physicists to settle down. Removed: &amp;quot;The multi-plane scheme of the comic seems inspired by the representation of the Gell-Mann quark model used in particle physics (you can see one on page 4 of the [https://pdg.lbl.gov/2022/reviews/rpp2022-rev-quark-model.pdf Particle Data Group quark model review]).&amp;quot; [[Special:Contributions/172.70.211.88|172.70.211.88]] 02:02, 12 August 2022 (UTC)&lt;br /&gt;
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Reminds me of ''[https://www.goodreads.com/en/book/show/54431070-battle-of-the-linguist-mages Battle of the Linguist Mages]'' - Punctuation marks are alien invaders from another dimension, and magic consists of pronouncing &amp;quot;power morphemes&amp;quot; (assuming learning them doesn't drive you mad, first).  --[[User:Bobson|Bobson]] ([[User talk:Bobson|talk]]) 02:43, 12 August 2022 (UTC)&lt;br /&gt;
: [https://web.archive.org/web/20220728152113/https://www.goodreads.com/en/book/show/54431070-battle-of-the-linguist-mages Archived]. --[[Special:Contributions/172.71.118.249|172.71.118.249]] 11:26, 20 November 2024 (UTC)&lt;br /&gt;
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The symbol reminds me of the {{w|Mandelbrot Set}} but turned on its side. [[Special:Contributions/172.70.93.43|172.70.93.43]] 07:17, 12 August 2022 (UTC)&lt;br /&gt;
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Not sure about ''the most common vowel sound in English polysyllabic words (the 'a' in &amp;quot;comma&amp;quot; or the second 'e' in &amp;quot;letter.&amp;quot;)'' - those are pronounced completely differently (unless perhaps you are from the south of England and pronounce 'letter' as 'lettah'). [[Special:Contributions/172.70.162.147|172.70.162.147]] 07:32, 12 August 2022 (UTC)&lt;br /&gt;
: I would pronounce them 'commuh' and 'lettuh', with a very short 'uh', which would fit with it being the most common vowel sound, given people say 'uh?' quite a lot. Although that's about as unpolysyllabic as you could get. [[Special:Contributions/172.70.91.80|172.70.91.80]] 09:02, 12 August 2022 (UTC)&lt;br /&gt;
:: Again, probably multiple isoglosses apply. I'm an &amp;quot;uh&amp;quot;-common person from the North and recognise &amp;quot;ah&amp;quot;-common accents as (certain bits of) the South, but it's possible that &amp;quot;lettah&amp;quot;&amp;lt;-&amp;gt;&amp;quot;lettuh&amp;quot; and &amp;quot;commah&amp;quot;&amp;lt;-&amp;gt;&amp;quot;commuh&amp;quot; transition at different boundaries across/around/through the Midlands, thus confusing many people. I think RP goes more &amp;quot;commah&amp;quot; and &amp;quot;lettuh(r)&amp;quot;. Checking Wiktionary, though, IPA is given as /ˈkɒm.ə/ (UK, otherwise unspecified) and /ˈlɛtə(ɹ)/ (RP), but there's not much info on direct comparisons between, say, East London/East Midlands/East Yorkshire/East Anglia/East Kilbride/Dwyran... [[Special:Contributions/172.70.86.34|172.70.86.34]] 11:36, 12 August 2022 (UTC)&lt;br /&gt;
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You could do something like this comic with the embeddings of a language model trained on IPA and human responses. Stuff like https://towardsdatascience.com/introduction-to-word-embedding-and-word2vec-652d0c2060fa  http://www.isle.illinois.edu/speech_web_lg/pubs/2021/gao2021zero.pdf . A speech generating reinforcement learning system rewarded on human response would almost certainly discover complex vowels: sounds humans recognise partly, possibly impossible mixes of normal vowels, that produce erratic or novel human behavior. This has likely happened in some kind of marketing or attention research. [[Special:Contributions/172.70.110.237|172.70.110.237]] 19:20, 12 August 2022 (UTC)&lt;br /&gt;
: To add on to this, when playing with or demoing powerful neural networks, people often give the networks impossible prompts (like dall-e’s original example of an armchair in the shape of an avocado, a contradiction as avocados are never shaped like something that is a chair) —- and surprisingly a strong model will actually produce a result humans believe meets the request. This is like the example of “x in fire&amp;quot; —- mainstream neural networks usually do not reject input, they just solve it the best they can, producing an output that best matches everything they learned, or is an extrapolation from what they learned along their internal dimensions. [[Special:Contributions/172.70.110.237|172.70.110.237]] 19:26, 12 August 2022 (UTC)&lt;br /&gt;
: [https://web.archive.org/web/20221024054550/http://www.isle.illinois.edu/speech_web_lg/pubs/2021/gao2021zero.pdf Archived]. --[[Special:Contributions/172.71.118.249|172.71.118.249]] 11:26, 20 November 2024 (UTC)&lt;br /&gt;
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&amp;quot;the properties of complex numbers could conceivably support representing physiological features of the vocal tract&amp;quot; - not sure about this - the properties of complex numbers stem from imaginary numbers being defined in relation to the square root of -1 - it's not obvious how a value of -1 would have any meaning in vocalspace (since it's a limited scale, not a continuous plane), never mind its square root, so how would the interactions between real and imaginary numbers read across to those between tongue movements and other vocal tract features? [[Special:Contributions/172.70.90.223|172.70.90.223]] 10:10, 15 August 2022 (UTC)&lt;br /&gt;
:Well... Although I never liked the way it was worded, I envisaged it as depicting extradimensional movements/displacements, possibly introducing resonances of air beyond the current three dimensions (and time) of movement. Such as compressive waves in a further imaginary dimension. (For transverse/tortional-waves, in media that support them, moments of movement/wbatever perpendicular/hyperradial to any 'real' version, but in air tbat's probably moot. Unless it isn't..?)&lt;br /&gt;
:Or you could consider, as you say, a limited scale of 0..1 being the distance of the tongue-tip between roof-touching and floor-touching (-1 would be a tongue ''embedded'' in whichever surface is zero, somehow phased through and creating a 'nevative cavity' of resonance, somehow, and an i-ward position would be... Well, not 'sideways' (though that does change things) but ''hyper''-sideways (again those other dimensions, probably requiring muscles/etc we don't normally consider), and all that implies.&lt;br /&gt;
:...that's if you want my assumptions about how an entirely ficticious and frankly esoteric  scenario might 'really' be implemented. I won't say it's the way it ''would'' be, and there are limely many other (mis)interpretations of how it might happen, these were just my first thoughts on initially reading the comic (but it used less words in my head, as I could more easily imagine the necessary illustrative diagrams that did most of the heavy lifting). [[Special:Contributions/172.70.91.78|172.70.91.78]] 11:52, 15 August 2022 (UTC)&lt;br /&gt;
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Complex vowels could appear in transapient language. In future, humans could invent some sort of super-intelligence; either godlike AI (descendant of self-improving AGI), modified-to-be-smarter humans (e.g. either &amp;quot;big meks&amp;quot; with 10x bigger brain and hulking body to carry that brain capable of ripping APC into shreds - or semi-immobile building-sized brain, towed around by dump truck or intercontinental missile carrier), or merged overmind (brains and machines alike connected into single computation network, smarter than sum of it's parts; a big smart super-brain made of milliards of tiny stupid brains). It would transcend humans at least as much, as modern humans transcend ''australopithecus'' - and likely transcend modern humans as much, as normal humans transcend microbes, if not more. As such, their method of communication would transcend ours, like our communication methods transcend those of animals. Therefore, their language would be so complex and complicated, what normal human's brains would boil in attempt to comprehend the speech of godlike super-intelligences (though, super-intelligences could switch to low brutish language of &amp;quot;normals&amp;quot; if needed - just like normal humans can switch to animalistic barking and grunting). --[[User:User 8496351|User 8496351]] ([[User talk:User 8496351|talk]]) 14:44, 20 June 2025 (UTC)&lt;br /&gt;
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The closest we have to Complex Vowels is the AI-only languages, like GibberLink. AI's talk in series of rapid beeps and boops, which reduces compute costs by 90% and cuts communication time by 80%. In other words - GibberLink is more comprehensible and fast than human languages. The problem is: GibberLink can only be used or understood by AI's; human vocal cords are incapable of making the required sounds for GibberLink. --[[User:SMGmsgsgd|SMGmsgsgd]] ([[User talk:SMGmsgsgd|talk]]) 19:46, 4 July 2025 (UTC)&lt;/div&gt;</summary>
		<author><name>SMGmsgsgd</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=3109:_Dehumidifier&amp;diff=380773</id>
		<title>3109: Dehumidifier</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=3109:_Dehumidifier&amp;diff=380773"/>
				<updated>2025-07-03T11:40:09Z</updated>
		
		<summary type="html">&lt;p&gt;SMGmsgsgd: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 3109&lt;br /&gt;
| date      = June 30, 2025&lt;br /&gt;
| title     = Dehumidifier&lt;br /&gt;
| image     = dehumidifier_2x.png&lt;br /&gt;
| imagesize = 295x327px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = It's important for devices to have internet connectivity so the manufacturer can patch remote exploits.&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
{{incomplete|This page was created WITHOUT INTERNET ACCESS. Don't remove this notice too soon.}}&lt;br /&gt;
&lt;br /&gt;
In this comic, [[Randall]] mocks the recent trend of various appliances, such as stoves and juicers, being connected to the internet even though one would expect them to be able to function without an internet connection. A {{w|dehumidifier}} removes moisture from the air. There are no obvious ways to improve dehumidifier operation without changes to its hardware&amp;lt;ref&amp;gt;Modern machines are incapable of self-modifying their hardware &amp;quot;on the fly&amp;quot; - requiring electronic or mechanic intervention to modify, which doesn't require the machine to have internet connection. Practical self-modifying machines would, likely, require practical inorganic nanorobots to construct.&amp;lt;/ref&amp;gt;, so it's unclear what benefit being able to receive updates via the internet would confer. [[Cueball]]'s sarcastic reply underlines the unlikeliness of a situation occurring where an update would be necessary. The implication is that many of these internet-connected devices are examples of over-engineering a solution to do things 'because we can' or because it makes it sound advanced and therefore more desirable to the customer, rather than because it offers any real added value.&lt;br /&gt;
&lt;br /&gt;
Dehumidifiers ''can'' provide information which might be useful to access remotely. For instance, it might be helpful to know the level of water in the storage tank (which must be emptied when full), the percent of time the humidifier is paused for de-icing, a log of the humidity level over time, and whether the humidity exceeds a certain limit (which could indicate dehumidifier malfunction, or that the dehumidifier is inadequate to the conditions), though how actionable and urgent this information would be is debatable. A local wireless network connected via WiFi is a reasonable way to send this information to a user or to other local devices.  &lt;br /&gt;
&lt;br /&gt;
However, many devices like this now offer, or even require, connections to a special app or to the internet. They typically connect to servers run by the device's manufacturer. When that server goes away, the devices may stop working.&lt;br /&gt;
&lt;br /&gt;
The title text says that authorized internet access is required to patch remote {{w|Exploit (computer security)|exploits}} (i.e., harmful unauthorized access from the internet). If this is the only use case that requires internet access, it would be much simpler to remove the {{w|attack vector}} for remote exploits by not having it connected to the internet in the first place. The most likely source of remote access would probably be the remote updater itself. However, there are proofs-of-concept of devices being hacked through acoustic-based or light-based attacks (possibly through hacked speakers or even from outside the house), and a patch could possibly circumvent those attacks.&lt;br /&gt;
&lt;br /&gt;
&amp;quot;New kind of water&amp;quot; could refer to [https://en.wikipedia.org/wiki/Heavy_water Heavy Water], [https://en.wikipedia.org/wiki/Tritiated_water Tritiated Water], [https://en.wikipedia.org/wiki/Doubly_labeled_water Double Labeled Water], [https://en.wikipedia.org/wiki/Hydronium Hydronium], [https://en.wikipedia.org/wiki/Semiheavy_water Semiheavy Water], [https://en.wikipedia.org/wiki/Deuterium-depleted_water Deuterium-Depleted Water], or something which isn't detected/invented yet. However, dehumidifier is not supposed to remove it - so unless it's hardware is modified, it's effectiveness is questionable. It is also very hard to imagine a situation, in which vapors of &amp;quot;new kind of water&amp;quot; would end up in house in significant quantities; such &amp;quot;new waters&amp;quot; can cause irritation with minor residual injuries - being too weak to use as chemical weapons, yet too dangerous to be found in ordinary house - and such &amp;quot;new kinds of water&amp;quot; are mostly found in nuclear reactor facilities, having no everyday use for household, and don't appear naturally.&lt;br /&gt;
&lt;br /&gt;
A related device was previously referred to in [[3044: Humidifier Review]], and the issue of possibly considering online protection of devices that (arguably) should not be so easily exploitable was looked at in [[463: Voting Machines]] and [[1966: Smart Home Security]]. Comic [[1912: Thermostat]] also deals with risks of adding computers to appliances.&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
: [A store salesman, [[Hairy]], is showing [[Cueball]] a dehumidifier with a &amp;quot;SALE&amp;quot; label on it. Several other unidentified devices, possibly other dehumidifier models, are shown in the store as well.]&lt;br /&gt;
&lt;br /&gt;
: Hairy: This dehumidifier model features built-in WiFi for remote updates.&lt;br /&gt;
: Cueball: Great! That will be really useful if they discover a new kind of water.&lt;br /&gt;
&lt;br /&gt;
==Trivia==&lt;br /&gt;
&lt;br /&gt;
Technically there are many different kinds of liquid water, based on the possible isotopes of hydrogen and oxygen atoms that its molecules are composed of. One of the most well known is {{w|heavy water}}, deuterium oxide, that is sometimes used in nuclear devices. There are 3 naturally-occurring {{w|isotopes of hydrogen}}&amp;lt;!-- including one of 'trace' quantities--&amp;gt;, with 6 possible combinations for its two atoms in a water molecule, and 4 naturally-occurring {{w|isotopes of oxygen}}&amp;lt;!-- including one of 'trace' quantities--&amp;gt;. This gives 6 × 4 = 24 kinds of naturally-occurring water molecules, which could be present in liquid water in any proportions, although 99.7% of all such molecules&amp;lt;!-- based upon given prevalences --&amp;gt; will be the 'normal' version of water. (The isotopic ratios in &amp;quot;natural&amp;quot; water are relatively stable, so there's very little variation in water found in nature.) There are also synthetic isotopes of each, all radioactive, most having short half-lives&amp;lt;!-- as are the two 'trace' Hydrogen and Oxygen ones, so maybe it should be 2x3=6 kinds of stable water..?--&amp;gt;. How many of these could be used to constitute water would depend in part on one's definition of whether a molecule of water could be said to have been formed prior to the decay of its constituent atoms. Each isotopically-distinct version of water has very slightly different physical and chemical properties, though the differences are small and the versions hard to separate. (Separation is further complicated by the extremely rapid rate with which molecules in liquid water {{w|Grotthuss mechanism|exchange hydrogen ions (protons)}} between themselves.) The differences would not be at all important to a consumer-grade dehumidifier.{{cn}}&lt;br /&gt;
&lt;br /&gt;
As of when this comic was posted, there are also 26 known {{w|phases of ice}} (solid water), each of which could be made from any combination of the isotopically-distinct versions of water in any proportions. These might count as different &amp;quot;kinds of water&amp;quot;, and one was discovered in 2025; others may yet be discovered. Only one of these phases, Ice I&amp;lt;sub&amp;gt;h&amp;lt;/sub&amp;gt;, is likely to be found on an iced-over dehumidifier under normal conditions of use.&lt;br /&gt;
&lt;br /&gt;
In the {{w|Twin Earth thought experiment}}, there exists a second Earth (called Twin Earth), in every way identical to ours, except that there is no water as we know it. Instead, there is XYZ, a substance that is chemically distinct from water, but is experientially identical to water, and referred to by the inhabitants of Twin Earth as &amp;quot;water&amp;quot;. Surprisingly, this dehumidifier might be useful, if the manufacturer was also planning to sell it on Twin Earth.&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&amp;lt;noinclude&amp;gt;&lt;br /&gt;
[[Category: Comics featuring Cueball]]&lt;br /&gt;
[[Category: Comics featuring Hairy]]&lt;br /&gt;
[[Category: Internet]]&lt;/div&gt;</summary>
		<author><name>SMGmsgsgd</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=3109:_Dehumidifier&amp;diff=380772</id>
		<title>3109: Dehumidifier</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=3109:_Dehumidifier&amp;diff=380772"/>
				<updated>2025-07-03T11:25:25Z</updated>
		
		<summary type="html">&lt;p&gt;SMGmsgsgd: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 3109&lt;br /&gt;
| date      = June 30, 2025&lt;br /&gt;
| title     = Dehumidifier&lt;br /&gt;
| image     = dehumidifier_2x.png&lt;br /&gt;
| imagesize = 295x327px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = It's important for devices to have internet connectivity so the manufacturer can patch remote exploits.&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
{{incomplete|This page was created WITHOUT INTERNET ACCESS. Don't remove this notice too soon.}}&lt;br /&gt;
&lt;br /&gt;
In this comic, [[Randall]] mocks the recent trend of various appliances, such as stoves and juicers, being connected to the internet even though one would expect them to be able to function without an internet connection. A {{w|dehumidifier}} removes moisture from the air. There are no obvious ways to improve dehumidifier operation without changes to its hardware, so it's unclear what benefit being able to receive updates via the internet would confer. [[Cueball]]'s sarcastic reply underlines the unlikeliness of a situation occurring where an update would be necessary. The implication is that many of these internet-connected devices are examples of over-engineering a solution to do things 'because we can' or because it makes it sound advanced and therefore more desirable to the customer, rather than because it offers any real added value.&lt;br /&gt;
&lt;br /&gt;
Dehumidifiers ''can'' provide information which might be useful to access remotely. For instance, it might be helpful to know the level of water in the storage tank (which must be emptied when full), the percent of time the humidifier is paused for de-icing, a log of the humidity level over time, and whether the humidity exceeds a certain limit (which could indicate dehumidifier malfunction, or that the dehumidifier is inadequate to the conditions), though how actionable and urgent this information would be is debatable. A local wireless network connected via WiFi is a reasonable way to send this information to a user or to other local devices.  &lt;br /&gt;
&lt;br /&gt;
However, many devices like this now offer, or even require, connections to a special app or to the internet. They typically connect to servers run by the device's manufacturer. When that server goes away, the devices may stop working.&lt;br /&gt;
&lt;br /&gt;
The title text says that authorized internet access is required to patch remote {{w|Exploit (computer security)|exploits}} (i.e., harmful unauthorized access from the internet). If this is the only use case that requires internet access, it would be much simpler to remove the {{w|attack vector}} for remote exploits by not having it connected to the internet in the first place. The most likely source of remote access would probably be the remote updater itself. However, there are proofs-of-concept of devices being hacked through acoustic-based or light-based attacks (possibly through hacked speakers or even from outside the house), and a patch could possibly circumvent those attacks.&lt;br /&gt;
&lt;br /&gt;
&amp;quot;New kind of water&amp;quot; could refer to [https://en.wikipedia.org/wiki/Heavy_water Heavy Water], [https://en.wikipedia.org/wiki/Tritiated_water Tritiated Water], [https://en.wikipedia.org/wiki/Doubly_labeled_water Double Labeled Water], [https://en.wikipedia.org/wiki/Hydronium Hydronium], [https://en.wikipedia.org/wiki/Semiheavy_water Semiheavy Water], [https://en.wikipedia.org/wiki/Deuterium-depleted_water Deuterium-Depleted Water], or something which isn't detected/invented yet. However, dehumidifier is not supposed to remove it - so unless it's hardware is modified, it's effectiveness is questionable. It is also very hard to imagine a situation, in which vapors of &amp;quot;new kind of water&amp;quot; would end up in house in significant quantities; such &amp;quot;new waters&amp;quot; can cause irritation with minor residual injuries - being too weak to use as chemical weapons, yet too dangerous to be found in ordinary house - and such &amp;quot;new kinds of water&amp;quot; are mostly found in nuclear reactor facilities, having no everyday use for household, and don't appear naturally.&lt;br /&gt;
&lt;br /&gt;
A related device was previously referred to in [[3044: Humidifier Review]], and the issue of possibly considering online protection of devices that (arguably) should not be so easily exploitable was looked at in [[463: Voting Machines]] and [[1966: Smart Home Security]]. Comic [[1912: Thermostat]] also deals with risks of adding computers to appliances.&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
: [A store salesman, [[Hairy]], is showing [[Cueball]] a dehumidifier with a &amp;quot;SALE&amp;quot; label on it. Several other unidentified devices, possibly other dehumidifier models, are shown in the store as well.]&lt;br /&gt;
&lt;br /&gt;
: Hairy: This dehumidifier model features built-in WiFi for remote updates.&lt;br /&gt;
: Cueball: Great! That will be really useful if they discover a new kind of water.&lt;br /&gt;
&lt;br /&gt;
==Trivia==&lt;br /&gt;
&lt;br /&gt;
Technically there are many different kinds of liquid water, based on the possible isotopes of hydrogen and oxygen atoms that its molecules are composed of. One of the most well known is {{w|heavy water}}, deuterium oxide, that is sometimes used in nuclear devices. There are 3 naturally-occurring {{w|isotopes of hydrogen}}&amp;lt;!-- including one of 'trace' quantities--&amp;gt;, with 6 possible combinations for its two atoms in a water molecule, and 4 naturally-occurring {{w|isotopes of oxygen}}&amp;lt;!-- including one of 'trace' quantities--&amp;gt;. This gives 6 × 4 = 24 kinds of naturally-occurring water molecules, which could be present in liquid water in any proportions, although 99.7% of all such molecules&amp;lt;!-- based upon given prevalences --&amp;gt; will be the 'normal' version of water. (The isotopic ratios in &amp;quot;natural&amp;quot; water are relatively stable, so there's very little variation in water found in nature.) There are also synthetic isotopes of each, all radioactive, most having short half-lives&amp;lt;!-- as are the two 'trace' Hydrogen and Oxygen ones, so maybe it should be 2x3=6 kinds of stable water..?--&amp;gt;. How many of these could be used to constitute water would depend in part on one's definition of whether a molecule of water could be said to have been formed prior to the decay of its constituent atoms. Each isotopically-distinct version of water has very slightly different physical and chemical properties, though the differences are small and the versions hard to separate. (Separation is further complicated by the extremely rapid rate with which molecules in liquid water {{w|Grotthuss mechanism|exchange hydrogen ions (protons)}} between themselves.) The differences would not be at all important to a consumer-grade dehumidifier.{{cn}}&lt;br /&gt;
&lt;br /&gt;
As of when this comic was posted, there are also 26 known {{w|phases of ice}} (solid water), each of which could be made from any combination of the isotopically-distinct versions of water in any proportions. These might count as different &amp;quot;kinds of water&amp;quot;, and one was discovered in 2025; others may yet be discovered. Only one of these phases, Ice I&amp;lt;sub&amp;gt;h&amp;lt;/sub&amp;gt;, is likely to be found on an iced-over dehumidifier under normal conditions of use.&lt;br /&gt;
&lt;br /&gt;
In the {{w|Twin Earth thought experiment}}, there exists a second Earth (called Twin Earth), in every way identical to ours, except that there is no water as we know it. Instead, there is XYZ, a substance that is chemically distinct from water, but is experientially identical to water, and referred to by the inhabitants of Twin Earth as &amp;quot;water&amp;quot;. Surprisingly, this dehumidifier might be useful, if the manufacturer was also planning to sell it on Twin Earth.&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&amp;lt;noinclude&amp;gt;&lt;br /&gt;
[[Category: Comics featuring Cueball]]&lt;br /&gt;
[[Category: Comics featuring Hairy]]&lt;br /&gt;
[[Category: Internet]]&lt;/div&gt;</summary>
		<author><name>SMGmsgsgd</name></author>	</entry>

	</feed>