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	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=3212:_Little_Red_Dots&amp;diff=407264</id>
		<title>3212: Little Red Dots</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=3212:_Little_Red_Dots&amp;diff=407264"/>
				<updated>2026-02-26T15:48:28Z</updated>
		
		<summary type="html">&lt;p&gt;NotaBene: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 3212&lt;br /&gt;
| date      = February 25, 2026&lt;br /&gt;
| title     = Little Red Dots&lt;br /&gt;
| image     = little_red_dots_2x.png&lt;br /&gt;
| imagesize = 634x306px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = After a lot of analysis, I've determined that they're actually big red dots; they're just very far away.&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
{{incomplete|This page was created by a LITTLE RED BOT. Don't remove this notice too soon.}}&lt;br /&gt;
&lt;br /&gt;
The {{w|Little red dot (astronomical object)|little red dot}}s that the comic refers to are something of an astronomical mystery, discovered by the JWST telescope. They may be powered by [https://www.cam.ac.uk/research/news/astronomers-detect-oldest-black-hole-ever-observed very, very old black holes] from 400-700 million years after the Big Bang. The comic purports to give the responses of several different experts in unrelated fields when asked to identify them:&lt;br /&gt;
* According to the {{w|Entomology|entomologists}} (scientists who study insects and related arthropods), they are {{w|Clover mite | clover mites}} (''Bryobia praetiosa'') — very small [[Red Spiders|red arachnids]].&lt;br /&gt;
* According to the {{w|Computer_science|computer scientists}}, they are {{w|defective pixel|stuck pixels}} — pixels that do not work properly, and are stuck to one single color (red in this case).  This is {{w|Hot pixel (telescopes)|a plausible concern}}, but presumably should already be handled through calibration processes.&lt;br /&gt;
* According to the {{w|Dermatology|dermatologists}} (doctors who specialize in skin disorders), they are {{w|Cherry angioma|cherry angiomas}} — harmless, non-cancerous skin growths made of clusters of dilated capillaries, appearing as bright red, smooth, or slightly raised spots.&lt;br /&gt;
* According to the {{w|Graphic_design|graphic designers}}, they are colors of type [https://www.colorhexa.com/d73b3e Jasper] (&amp;lt;span style=&amp;quot;color:#d73b3e&amp;quot;&amp;gt;●&amp;lt;/span&amp;gt; #d73b3e) or [https://www.colorhexa.com/e34234 Vermillion] (&amp;lt;span style=&amp;quot;color:#e34234&amp;quot;&amp;gt;●&amp;lt;/span&amp;gt; #e34234, sometimes called Cinnabar).  &lt;br /&gt;
&lt;br /&gt;
Quite obviously, all of these, if not completely incorrect, are fully unrelated to astronomy.&lt;br /&gt;
&lt;br /&gt;
Part of the punchline is the shift in focus: instead of trying to identify the object, the designer is nitpicking the description of &amp;quot;red dot.&amp;quot; Additionally, the graphic designer is also requesting [[Cueball]]'s {{w|Color_calibration|color settings}}, implying they believe the reason Cueball calls them &amp;quot;red&amp;quot; is due to poor display settings, and not due to using the common term for the color.  There is a certain amount of insight here, as the JWST only observes orange to far-infrared light; this is to enable it to see very distant objects, whose blue and ultraviolet emissions have been {{w|redshift|redshifted}} into longer wavelengths.  Converting observed wavelengths into rest-frame wavelengths is a process subject to error, and then {{w|false color|falsely-coloring}} the object so that it may be visualized by human eyes is another such. &lt;br /&gt;
&lt;br /&gt;
The title text states that the little red dots are actually big, far-away dots, which is a play on the [https://www.youtube.com/watch?v=MMiKyfd6hA0 phenomenon] of relative perceived size, where larger objects that are further away can appear the same size as smaller ones that are closer to the viewer. As with most objects observed in space, particularly deep space, these objects are indeed very large on a human scale. They are also larger than astronomers expected them to be.&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
:[Caption above all the panels:]&lt;br /&gt;
:Astronomers asking researchers from different departments to help them identify the &amp;quot;little red dots&amp;quot; in JWST images: &lt;br /&gt;
&lt;br /&gt;
:[In each panel, Cueball stands at the left of an easel. The easel is shown each time as having a black image with three red dots on it. At the right of the easel in each panel is a different character looking at the image on the easel and commenting on it. At the top of each panel is a caption indicating the type of researcher commenting on the image.]&lt;br /&gt;
&lt;br /&gt;
:Caption: Entomologists&lt;br /&gt;
:Megan: Clover mites.&lt;br /&gt;
&lt;br /&gt;
:Caption: Computer scientists&lt;br /&gt;
:Knit Cap: Stuck pixels.&lt;br /&gt;
&lt;br /&gt;
:Caption: Dermatologists&lt;br /&gt;
:Ponytail: Cherry angiomas.&lt;br /&gt;
&lt;br /&gt;
:Caption: Graphic designers&lt;br /&gt;
:Hairy: No, those are vermillion, or maybe jasper.&lt;br /&gt;
:Hairy: Can I see your color settings?&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&amp;lt;noinclude&amp;gt;&lt;br /&gt;
&lt;br /&gt;
[[Category:Comics featuring Cueball]]&lt;br /&gt;
[[Category:Comics featuring Megan]]&lt;br /&gt;
[[Category:Comics featuring Knit Cap]]&lt;br /&gt;
[[Category:Comics featuring Ponytail]]&lt;br /&gt;
[[Category:Comics featuring Hairy]]&lt;br /&gt;
[[Category:Comics with color]]&lt;br /&gt;
[[Category:Astronomy]]&lt;br /&gt;
[[Category:Telescopes]]&lt;br /&gt;
[[Category:Biology]]&lt;br /&gt;
[[Category:Computers]]&lt;br /&gt;
[[Category:Medicine]]&lt;br /&gt;
[[Category:Graphic designers]]&lt;/div&gt;</summary>
		<author><name>NotaBene</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=3212:_Little_Red_Dots&amp;diff=407263</id>
		<title>3212: Little Red Dots</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=3212:_Little_Red_Dots&amp;diff=407263"/>
				<updated>2026-02-26T15:47:16Z</updated>
		
		<summary type="html">&lt;p&gt;NotaBene: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 3212&lt;br /&gt;
| date      = February 25, 2026&lt;br /&gt;
| title     = Little Red Dots&lt;br /&gt;
| image     = little_red_dots_2x.png&lt;br /&gt;
| imagesize = 634x306px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = After a lot of analysis, I've determined that they're actually big red dots; they're just very far away.&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
{{incomplete|This page was created by a LITTLE RED BOT. Don't remove this notice too soon.}}&lt;br /&gt;
&lt;br /&gt;
The {{w|Little red dot (astronomical object)|little red dot}}s that the comic refers to are something of an astronomical mystery, discovered by the JWST telescope. They may be powered by [https://www.cam.ac.uk/research/news/astronomers-detect-oldest-black-hole-ever-observed very, very old black holes] from 400-700 million years after the Big Bang. The comic purports to give the responses of several different experts in unrelated fields when asked to identify them:&lt;br /&gt;
* According to the {{w|Entomology|entomologists}} (scientists who study insects and related arthropods), they are {{w|Clover mite | clover mites}} (''Bryobia praetiosa'') — very small [[Red Spiders|red arachnids]].&lt;br /&gt;
* According to the {{w|Computer_science|computer scientists}}, they are {{w|defective pixel|stuck pixels}} — pixels that do not work properly, and are stuck to one single color (red in this case).  This is a plausible concern, but presumably should already be handled through calibration processes.&lt;br /&gt;
* According to the {{w|Dermatology|dermatologists}} (doctors who specialize in skin disorders), they are {{w|Cherry angioma|cherry angiomas}} — harmless, non-cancerous skin growths made of clusters of dilated capillaries, appearing as bright red, smooth, or slightly raised spots.&lt;br /&gt;
* According to the {{w|Graphic_design|graphic designers}}, they are colors of type [https://www.colorhexa.com/d73b3e Jasper] (&amp;lt;span style=&amp;quot;color:#d73b3e&amp;quot;&amp;gt;●&amp;lt;/span&amp;gt; #d73b3e) or [https://www.colorhexa.com/e34234 Vermillion] (&amp;lt;span style=&amp;quot;color:#e34234&amp;quot;&amp;gt;●&amp;lt;/span&amp;gt; #e34234, sometimes called Cinnabar).  &lt;br /&gt;
&lt;br /&gt;
Quite obviously, all of these, if not completely incorrect, are fully unrelated to astronomy.&lt;br /&gt;
&lt;br /&gt;
Part of the punchline is the shift in focus: instead of trying to identify the object, the designer is nitpicking the description of &amp;quot;red dot.&amp;quot; Additionally, the graphic designer is also requesting [[Cueball]]'s {{w|Color_calibration|color settings}}, implying they believe the reason Cueball calls them &amp;quot;red&amp;quot; is due to poor display settings, and not due to using the common term for the color.  There is a certain amount of insight here, as the JWST only observes orange to far-infrared light; this is to enable it to see very distant objects, whose blue and ultraviolet emissions have been {{w|redshift|redshifted}} into longer wavelengths.  Converting observed wavelengths into rest-frame wavelengths is a process subject to error, and then {{w|false color|falsely-coloring}} the object so that it may be visualized by human eyes is another such. &lt;br /&gt;
&lt;br /&gt;
The title text states that the little red dots are actually big, far-away dots, which is a play on the [https://www.youtube.com/watch?v=MMiKyfd6hA0 phenomenon] of relative perceived size, where larger objects that are further away can appear the same size as smaller ones that are closer to the viewer. As with most objects observed in space, particularly deep space, these objects are indeed very large on a human scale. They are also larger than astronomers expected them to be.&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
:[Caption above all the panels:]&lt;br /&gt;
:Astronomers asking researchers from different departments to help them identify the &amp;quot;little red dots&amp;quot; in JWST images: &lt;br /&gt;
&lt;br /&gt;
:[In each panel, Cueball stands at the left of an easel. The easel is shown each time as having a black image with three red dots on it. At the right of the easel in each panel is a different character looking at the image on the easel and commenting on it. At the top of each panel is a caption indicating the type of researcher commenting on the image.]&lt;br /&gt;
&lt;br /&gt;
:Caption: Entomologists&lt;br /&gt;
:Megan: Clover mites.&lt;br /&gt;
&lt;br /&gt;
:Caption: Computer scientists&lt;br /&gt;
:Knit Cap: Stuck pixels.&lt;br /&gt;
&lt;br /&gt;
:Caption: Dermatologists&lt;br /&gt;
:Ponytail: Cherry angiomas.&lt;br /&gt;
&lt;br /&gt;
:Caption: Graphic designers&lt;br /&gt;
:Hairy: No, those are vermillion, or maybe jasper.&lt;br /&gt;
:Hairy: Can I see your color settings?&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&amp;lt;noinclude&amp;gt;&lt;br /&gt;
&lt;br /&gt;
[[Category:Comics featuring Cueball]]&lt;br /&gt;
[[Category:Comics featuring Megan]]&lt;br /&gt;
[[Category:Comics featuring Knit Cap]]&lt;br /&gt;
[[Category:Comics featuring Ponytail]]&lt;br /&gt;
[[Category:Comics featuring Hairy]]&lt;br /&gt;
[[Category:Comics with color]]&lt;br /&gt;
[[Category:Astronomy]]&lt;br /&gt;
[[Category:Telescopes]]&lt;br /&gt;
[[Category:Biology]]&lt;br /&gt;
[[Category:Computers]]&lt;br /&gt;
[[Category:Medicine]]&lt;br /&gt;
[[Category:Graphic designers]]&lt;/div&gt;</summary>
		<author><name>NotaBene</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2270:_Picking_Bad_Stocks&amp;diff=402612</id>
		<title>2270: Picking Bad Stocks</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2270:_Picking_Bad_Stocks&amp;diff=402612"/>
				<updated>2025-12-28T19:53:22Z</updated>
		
		<summary type="html">&lt;p&gt;NotaBene: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 2270&lt;br /&gt;
| date      = February 19, 2020&lt;br /&gt;
| title     = Picking Bad Stocks&lt;br /&gt;
| image     = picking_bad_stocks.png&lt;br /&gt;
| titletext = On the news a few days later: &amp;quot;Buzz is building around the so-called 'camping Roomba' after a big investment. Preorders have spiked, and...&amp;quot;&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
&lt;br /&gt;
In simplest terms, the stock market is a system by which private investors (including individual) can invest in companies by purchasing shares of stock, which can pay dividends, based on the company's net profits, and which rise in value if a company is doing well or is expected to do well in the future. Like many laymen, [[Cueball]] apparently understands the concept of the stock market, but is mystified by the complex strategies and vehicles for investment. He asks [[Ponytail]] if he can just &amp;quot;open up a website, and a pick a company you like.&amp;quot;  In fact, in modern times, it's quite easy for individuals to set up online brokerage accounts with relatively small investments, and buy any available stocks they like. &lt;br /&gt;
&lt;br /&gt;
Ponytail then adds that there's a lot of evidence suggesting that no investment strategy consistently outperforms the market. This is significant, because there's an entire industry of &amp;quot;fund management&amp;quot;, in which (often highly paid) financial experts determine how clients' money should be invested. The notion is that such managers, being particularly educated and informed on both general economic conditions and the state of specific companies, should be able to select companies that are more likely to do well and avoid those which will do poorly. However, history shows that stock markets in most advance economies tend to rise over time, which means that most stocks are more likely to go up in value, rather than down. Simply choosing more stocks that go up in value than down is relatively trivial, in order to be valuable, a fund needs to &amp;quot;beat the market&amp;quot;, meaning that it appreciates in value more than the entire body of stocks do. &lt;br /&gt;
&lt;br /&gt;
As Ponytail points out, however, there is little evidence that these funds provide much value in the long term. Many studies, such as the long-running &amp;quot;[https://papers.ssrn.com/sol3/papers.cfm?abstract_id=670404 Investment Dartboard Contest]&amp;quot; run by ''{{w|The Wall Street Journal}}'', have found that an index of stocks that represent the total market is likely to produce returns just as favorable as an expert.  This means a large enough set of randomly-selected stocks (often colloquially stated as &amp;quot;picked by a monkey&amp;quot;) is likely to do the same, as it's likely to represent the entire market. The reasons for this are much debated. A lot of the value of stocks is based on perception and speculation about the future, and so exhibits a great deal of unpredictable and quasi-random behavior. And any objective information about a company's health tends to shift the prices very quickly, so the typical investor can't really take advantage of those. While a fund might have periods of significantly market-beating performance, those are generally balanced out by periods of bad luck.&lt;br /&gt;
&lt;br /&gt;
Ponytail then points out an interesting corollary. If movements of the stock market are effectively random, then it's just as hard to consistently ''lose'' money by investing as it is to consistently gain money. The reason is that consistently losing money would require a person to be able to consistently identify stocks that are likely to decline in value. The ability to do that would be very valuable, because the more bad stocks you can remove from your portfolio, the higher percentage of good stocks you'll have left. &lt;br /&gt;
&lt;br /&gt;
Cueball's immediate response is that he's sure can pick money-losing stocks. The final panel suggests that he's teamed up with [[Megan]] and [[White Hat]] to do exactly that, selecting stocks based on absurd reasons, while the others watch from a distance, and cull his suggested stocks from their portfolio, rather than investing in them.&lt;br /&gt;
&lt;br /&gt;
In real life, this strategy would be unlikely to work, for the exact reasons Ponytail laid out: the trends of individual stocks are too complex and random to predict, so good or bad decision making won't consistently stray from market returns. &lt;br /&gt;
&lt;br /&gt;
In this example, the disturbing news about these companies (such as their CEO exhibiting erratic behavior, or developing an apparently useless product) is already public, and will presumably have been &amp;quot;priced in&amp;quot; to the market. This means that the stock price will have already dropped as much as it's expected to by most investors. At the same time, individual pieces of bad news don't necessarily mean the company will fail. If the CEO's eccentricities start to impact earnings, they'll probably be replaced. An ill-conceived product may indicate poor management, or it may be a one-off, and other product lines can keep the company profitable. As a result, dropping such companies after bad news, when the stock price is likely to be low, is unlikely to be a winning strategy.&lt;br /&gt;
&lt;br /&gt;
In the title-text, another reason why it's difficult to pick bad stocks is highlighted. Due to a big investment (very possibly, Cueball's investment), the company in question has gotten a lot of attention and a spike in pre-orders. This emphasizes the unpredictability of the markets. People often invest (and even order) based on perception as much as on actual value, and so a company that might seem in trouble might see its fortunes turn around quickly. Because such things are so difficult to predict, beating the market is nearly impossible over time.&lt;br /&gt;
&lt;br /&gt;
If we assume that Randall is not using &amp;quot;Roomba&amp;quot; as a {{w|generic trademark}} for any small domestic cleaning robot, then the company in question is {{w|iRobot}}; [https://finance.yahoo.com/quote/IRBT/ their stock price] more than doubled in the year after this comic was published, but then subsided back down the year after, even amidst news that they were intending to be acquired by Amazon (which then failed to happen after scrutiny from regulators).  At the end of 2025, iRobot declared bankruptcy and was acquired by their contracted manufacturer.  Was Cueball's &amp;quot;talent&amp;quot; in any way prescient of this occurrence?  But in any case, iRobot's sub-billion-dollar revenue and market capitalization were never going to make or break any meaningful index funds.&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
&lt;br /&gt;
:[Cueball and Ponytail are walking together.]&lt;br /&gt;
:Cueball: I feel like by now I should know about the stock market.&lt;br /&gt;
:Cueball: What ''is'' investing?  Do you just open a website and pick the companies you like?&lt;br /&gt;
&lt;br /&gt;
:[Cueball and Ponytail are still walking; Ponytail is holding out her hand palm-up.]&lt;br /&gt;
:Ponytail: Well, you totally can.&lt;br /&gt;
:Ponytail: But there's a lot of evidence that no investing strategy consistently picks stocks that outperform the average of the whole market.  A lot of fund management is a myth.&lt;br /&gt;
&lt;br /&gt;
:[Close-up on Ponytail, who has turned to Cueball.]&lt;br /&gt;
:Cueball (off-screen): Huh, okay.&lt;br /&gt;
:Ponytail: But there's a weird corollary to that idea: it implies that, ignoring fees and stuff, it's just as hard to consistently ''lose'' money by picking ''bad'' stocks from an index.&lt;br /&gt;
&lt;br /&gt;
:[Cueball and Ponytail are both back in frame.  They are standing still and facing each other.]&lt;br /&gt;
:Ponytail: If someone could consistently buy bad stocks, you could beat the average by hiring them, letting them pretend to invest, then buying every stock ''except'' the ones they pick.&lt;br /&gt;
:Ponytail: In a way, bad judgement is just as helpful as good judgement.&lt;br /&gt;
&lt;br /&gt;
:[In a frameless panel, Cueball and Ponytail are standing facing each other; Cueball is raising his hands.]&lt;br /&gt;
:Cueball: Oh my God.&lt;br /&gt;
:Cueball: I can do that!&lt;br /&gt;
:Ponytail: No, it's just an example--&lt;br /&gt;
:Cueball: This is the job I was born for.&lt;br /&gt;
&lt;br /&gt;
:[Cueball is either sitting in a box or being viewed on a camera screen.  He is sitting in front of a computer console, and a camera is pointed at him.  Megan and White Hat are viewing him, and White Hat is holding a tablet.]&lt;br /&gt;
:[Text box: Soon...]&lt;br /&gt;
:Cueball: Hey, this company's CEO wants revenge on the same ghost as me!  I'm buying!&lt;br /&gt;
:Cueball: Ooh, and this one is planning to develop a &amp;quot;Camping Roomba.&amp;quot;  That's a sure bet!&lt;br /&gt;
:Megan: Drop companies #208 and #1434 from the index.&lt;br /&gt;
:White Hat: Done.&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
[[Category:Comics featuring Cueball]]&lt;br /&gt;
[[Category:Comics featuring Ponytail]]&lt;br /&gt;
[[Category:Comics featuring Megan]]&lt;br /&gt;
[[Category:Comics featuring White Hat]]&lt;br /&gt;
[[Category:Roomba]]&lt;br /&gt;
[[Category:Stock Market]]&lt;/div&gt;</summary>
		<author><name>NotaBene</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=3182:_Telescope_Types&amp;diff=402017</id>
		<title>3182: Telescope Types</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=3182:_Telescope_Types&amp;diff=402017"/>
				<updated>2025-12-18T01:35:07Z</updated>
		
		<summary type="html">&lt;p&gt;NotaBene: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 3182&lt;br /&gt;
| date      = December 17, 2025&lt;br /&gt;
| title     = Telescope Types&lt;br /&gt;
| image     = telescope_types_2x.png&lt;br /&gt;
| imagesize = 517x680px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = I'm trying to buy a gravitational lens for my camera, but I can't tell if the manufacturers are listing comoving focal length or proper focal length.&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
{{incomplete|This page was created recently ACCORDING TO A TELESCOPE POINTING BACK IN TIME. Don't remove this notice too soon.}}&lt;br /&gt;
This comic shows diagrams of a number of different types of {{w|telescope}}, some real and others made up by Randall. It includes both refracting and reflecting designs; see [[1791: Telescopes: Refractor vs Reflector]] for the important (according to Randall) differences between them.&lt;br /&gt;
&lt;br /&gt;
{| class=&amp;quot;wikitable&amp;quot;&lt;br /&gt;
! Type !! Real? !! Refractor/Reflector !! Description&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Reflecting telescope#Prime_focus|Prime Focus}} || Yes || Reflector || A telescope design where the observer/receiver is situated at the focal point of a single mirror. Rare in optics, but a common design in radio telescopes.&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Herschelian telescope|Herschelian}} || Yes || Reflector || A telescope design much akin to Prime Focus but with the mirror tilted so that the observer does not block incoming light. Named after astronomer William Herschel.&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Newtonian  telescope|Newtonian}} || Yes || Reflector || Newtonian telescopes employ a second, flat mirror along with the primary parabolic mirror.&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Galilean telescope|Galilean}} || Yes || Refractor || What might usually come to mind when picturing a telescope. A long tube that uses lenses rather than mirrors (making it a refracting telescope) to magnify images.&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Keplerian telescope|Keplerian}} || Yes || Refractor || An improvement on Galilean telescopes, using a convex lens rather than a concave one at the eyepiece (as shown in the diagram). It does however invert images.&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Gregorian telescope|Gregorian}} || Yes || Reflector ||&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Cassegrain telescope|Cassegrain}} || Yes || Reflector ||&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Cardboard}} tube || Yes, but not as a telescope || Neither || Looking through a tube helps you focus by removing distractions, but doesn't magnify the object being viewed.&lt;br /&gt;
|-&lt;br /&gt;
| Kaleido || Yes || Reflector? || A {{w|kaleidoscope}} isn't really a telescope, because the non-viewing end is closed. You view many reflections of tiny objects at the end, rather than remote objects. The mirrors are also usually flat, so there's no magnification.&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Liquid mirror telescope|Liquid Mirror}} || Yes || Reflector || A telescope using a rotating pool of reflective liquid (most commonly mercury) as a mirror. The diagram adds a straw so that someone can drink the liquid. This would likely not end well for the drinker.&lt;br /&gt;
|-&lt;br /&gt;
| Narcissian || No || Reflector || This is like a prime focus telescope, but the focus is outside the end of the telescope where the viewer is located. So they can only see themselves, greatly magnified. This is inspired by the myth of {{w|Narcissus}}, who fell in love with his reflection in a pool of water.&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Gravitational lens|Gravitational}} || Yes || Refractor || These can't be constructed on Earth{{cn}}, they're formed naturally by large stars (particularly {{w|black holes}}) and galaxies.  There are proposals to launch missions to the very far reaches of the Solar System to &amp;quot;construct&amp;quot; a {{w|Solar gravitational lens}} telescope, but the masses and distances involved are not compatible with consumer camera hardware.  In the title text, Randall makes a pun on whether the listed focal length of a gravitational lens is measured in the {{w|comoving and proper distances|comoving or proper}} reference frame, i.e. whether the expansion of the universe (between the place and time of the lens's creation or construction and Randall's decision to purchase) has been factored out or not.  At the cosmological scales between stars and galaxies, where gravitational lensing is most relevant, this is a useful distinction to make, but [https://iauarchive.eso.org/public/themes/buying_star_names/ stars are not for sale] (by any legitimate commercial entity) and so nobody would be advertising any focal length in either reference frame for any purchaser.&lt;br /&gt;
|-&lt;br /&gt;
| Geological || No || Reflector ||&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
{{incomplete transcript|Don't remove this notice too soon.}}&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&amp;lt;noinclude&amp;gt;&lt;br /&gt;
&lt;br /&gt;
[[Category:Science]]&lt;br /&gt;
[[Category:Astronomy]]&lt;br /&gt;
[[Category:Geology]]&lt;br /&gt;
[[Category:Telescopes]]&lt;br /&gt;
[[Category:Movies]]&lt;/div&gt;</summary>
		<author><name>NotaBene</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=3180:_Apples&amp;diff=401418</id>
		<title>3180: Apples</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=3180:_Apples&amp;diff=401418"/>
				<updated>2025-12-13T01:01:18Z</updated>
		
		<summary type="html">&lt;p&gt;NotaBene: /* Explanation */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 3180&lt;br /&gt;
| date      = December 12, 2025&lt;br /&gt;
| title     = Apples&lt;br /&gt;
| image     = apples_2x.png&lt;br /&gt;
| imagesize = 263x364px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = The experimental math department's budget is under scrutiny for how much they've been spending on trains leaving Chicago at 9:00pm traveling at 45 mph.&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
{{incomplete|This page was created BY 7+5=13 APPLES. Don't remove this notice too soon.}}&lt;br /&gt;
&lt;br /&gt;
In the comic, a group of three &amp;quot;experimental mathematicians&amp;quot; has experimentally confirmed the answer to a math story problem that might normally appear in elementary school: &amp;quot;If Cueball has seven apples and Hairbun has five, how many apples are there?&amp;quot; Cueball counts the two groups of apples and states that the total is twelve. Blondie agrees that this is noteworthy. &lt;br /&gt;
&lt;br /&gt;
Most people with a basic level of math would represent this as 7+5=12 and be confident of the answer without needing to count groups of physical objects. However, the title text states that there is an entire experimental math department dedicated to testing out common story problems in the real world, as if there was some doubt that {{w|Number theory|the theories}} were sound.&lt;br /&gt;
&lt;br /&gt;
It may also be an allusion to the most basic step of human mathematics, that of realising that seven of ''any'' conceived item plus five more of it will be twelve such items in total, and that numbers alone can therefore represent items without there ''being'' actual items to prove their own totals. {{w|History of ancient numeral systems#Clay tokens|Early accounting methods}} initially used proxy representations of the items, in a form of hybrid literal/symbolic manner, which meant that the combining of numbers of apples and combining numbers of livestock could be considered almost as different concepts, even though they had the same total sum applied only to different products.&lt;br /&gt;
&lt;br /&gt;
It is possible that this Experimental Mathematics department has been working on this particular level of problem, as part of a mostly pre-mathematical culture. They are just now checking that 7 apples plus 5 apples equals 12 apples, after perhaps extrapolating from the recently confirmed fact that (e.g.) 7 sheep plus 5 sheep equals 12 sheep. Their theory that this extends to apples (and any other items they have tested before this point) has so far not managed to support the {{w|null hypothesis}} in which it might not.&lt;br /&gt;
&lt;br /&gt;
Many branches of science have a known division between the empirical approach (gathering direct evidence or practically demonstrating that something works) and the theoretical (developing abstract models that fit the available information without fully testing them). High-quality experiments tend to be difficult and expensive, so rigorous testing is normally reserved for problems that someone considers sufficiently important or interesting. Math often deals with numbers and situations that cannot be reliably reproduced. The department's focus on confirming what most people already know may face difficulties when applying for grant funding.  In reality, {{w|experimental mathematics}} is the branch of mathematics which uses computation as opposed to &amp;quot;pure&amp;quot; deductive proof methods.  This does not involve &amp;quot;verifying&amp;quot; simple arithmetic, but could encompass e.g. calculating long runs of the digits of pi in search of patterns that may not be 'obvious' from known principles but which could be proven once identified as a candidate for proof.&lt;br /&gt;
&lt;br /&gt;
On top of the simple problem that requires simple addition (and possibly subtraction) to fully understand the answer of, the title text goes on to cover a slightly more complicated schoolroom mathematical problem, one which generally requires at least some understanding of multiplication and division (though more advanced problems of this type might require moving into the realms of algebra, and the nature of {{w|System of equations|simultaneous equations}} in particular). These may take the analagous form of a train (or other vehicle) setting off at a given time and constant speed along a given hypothetical route, and comparing that against other trips made to/from the same location. As with the hyper-practical experimentations with the number of apples, these more advanced queries are being investigated by directly examining the real-world incarnations of the terms of the problem. It seems that enough identical repetitions have been attempted, at least of a particular Chicago-departing rail service, to have worried those who oversee the financial accounts. (Presumably the accountants at least know enough about numbers to know that the acceptible number of purchased train tickets plus yet more purchased train tickets is adding up to more train tickets purchased than the accountants can consider to be justified.)&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
{{incomplete transcript|Don't remove this notice too soon.}}&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&amp;lt;noinclude&amp;gt;&lt;/div&gt;</summary>
		<author><name>NotaBene</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=3159:_Continents&amp;diff=389603</id>
		<title>3159: Continents</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=3159:_Continents&amp;diff=389603"/>
				<updated>2025-10-26T13:47:39Z</updated>
		
		<summary type="html">&lt;p&gt;NotaBene: /* Explanation */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 3159&lt;br /&gt;
| date      = October 24, 2025&lt;br /&gt;
| title     = Continents&lt;br /&gt;
| image     = continents_2x.png&lt;br /&gt;
| imagesize = 276x430px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = The inflection point was probably in late 1966 or 1967, so when Neil Armstrong flew to space on Gemini 8, plate tectonics was not widely accepted, but when he landed on the Moon three years later it was the mainstream consensus.&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
{{incomplete|This page was created by a TECTONIC PLATE-SIZED CONVEYOR BELT. Don't remove this notice too soon.}}&lt;br /&gt;
{{w|Plate tectonics}} is the theory that the Earth's crust consists of a number of large land masses that have been slowly moving for billions of years. The theory is built on the earlier idea of {{w|Plate_tectonics#Continental_drift|continental drift}}, which was first proposed in the early 20th century. It was controversial until the mid-1960s, when advances in technology such as {{w|Geophysical_imaging#Seismic_Methods|seismic imaging}} made the mechanism clear.&lt;br /&gt;
&lt;br /&gt;
Manned spaceflight officially began in 1960, when the {{w|Soviet Union}} launched {{w|Yuri Gagarin}} into space after several years of launching robotic and animal payloads. Randall finds it surprising that we achieved this before we had verified something fundamental about the world we live on.  As it happens, the first satellite launches, {{w|Sputnik}} and {{w|Explorer 1}}, took place during (and participated in) the {{w|International Geophysical Year}}, a focused international effort to collaborate across political lines to study the Earth in 1957-58 (which also included the mapping of the {{w|Mid-Atlantic Ridge}}).  In the present day, much of plate tectonics research depends on {{w|Satellite navigation|satellite tracking and navigation}}, such as {{w|GPS}} (initiated 1973, launched starting in 1978, operational since 1993), to monitor plate motions in ways that a human on the ground cannot sense. Other critical technologies include {{w|laser rangefinder|laser ranging}} (first invented in 1960) and improvements in {{w|gravimetry|gravimetrics}}, all in advancement around the same time and in the same context of the {{w|Space Race}}.&lt;br /&gt;
&lt;br /&gt;
The title text points out that plate tectonics was finally validated between {{w|Neil Armstrong}}'s first and last space missions. His first flight was in 1966 on {{w|Gemini 8}}, and his second and last flight was in 1969 on {{w|Apollo 11}}, the first mission to land people on the Moon.&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
{{incomplete transcript|Don't remove this notice too soon.}}&lt;br /&gt;
&amp;lt;p&amp;gt;[Two spacecraft, a Gemini capsule and an Agena Target Vehicle with a loose tether connecting them, are in space over the Mediterranean with Italy in the background. A voice is emanating from the spacecraft]&amp;lt;/p&amp;gt;&lt;br /&gt;
Spacecraft: Houston, the view is superb. We can see the continents spread out below us, right where they've been since the earth formed.&lt;br /&gt;
&amp;lt;p&amp;gt;[Caption beneath panel:]&amp;lt;/p&amp;gt;&lt;br /&gt;
I still can't believe we developed spaceflight before we figured out that the continents moved.&lt;br /&gt;
&lt;br /&gt;
==Trivia==&lt;br /&gt;
The comic may be intended to show Gemini 8's mission, with Armstrong on board, to dock with the previously launched {{w|Agena target vehicle|target vehicle}}. However, severe control issues with that mission precluded many of the planned aims (including the experiments that involved a tethered connection). The mission that might at some point have looked most like this depiction was perhaps {{w|Gemini 11}}, also launched in 1966 but without Armstrong being on board.&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&amp;lt;noinclude&amp;gt;&lt;br /&gt;
[[Category:Space]]&lt;br /&gt;
[[Category:Geology]]&lt;br /&gt;
[[Category:Comics featuring real people]]&lt;/div&gt;</summary>
		<author><name>NotaBene</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=3159:_Continents&amp;diff=389529</id>
		<title>3159: Continents</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=3159:_Continents&amp;diff=389529"/>
				<updated>2025-10-24T16:54:59Z</updated>
		
		<summary type="html">&lt;p&gt;NotaBene: /* Explanation */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 3159&lt;br /&gt;
| date      = October 24, 2025&lt;br /&gt;
| title     = Continents&lt;br /&gt;
| image     = continents_2x.png&lt;br /&gt;
| imagesize = 276x430px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = The inflection point was probably in late 1966 or 1967, so when Neil Armstrong flew to space on Gemini 8, plate tectonics was not widely accepted, but when he landed on the Moon three years later it was the mainstream consensus.&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
{{incomplete|This page was created by a TECTONIC PLATE-SIZED CONVEYOR BELT. Don't remove this notice too soon.}}&lt;br /&gt;
{{w|Plate tectonics}} is the theory that the Earth's crust consists of a number of large land masses that have been slowly moving for billions of years. Continental drift was first proposed in the early 20th century, but it was controversial until the mid-1960s, until advances in technology (such as seismic imaging) made the mechanism clear.&lt;br /&gt;
&lt;br /&gt;
Manned spaceflight officially began in 1960, when the Soviet Union launched {{w|Yuri Gagarin}} into space, after several years of launching robotic and animal payloads. Randall finds it surprising that we achieved this before we had verified something fundamental about the world we live on.  In the present day, much of plate tectonics research depends on satellite tracking and navigation, such as {{w|GPS}} (initiated 1973, launched starting in 1978, operational since 1993), to monitor plate motions in ways that a human on the ground cannot sense.  Other critical technologies include laser ranging (first invented in 1960) and pulsar tracking (first discovered in 1967), all in advancement around the same time and in the same context of the {{w|Space Race}}.&lt;br /&gt;
&lt;br /&gt;
The title text points out that plate tectonics was finally validated between {{w|Neil Armstrong}}'s first and last space missions. His first flight was in 1966 on {{w|Gemini 8}}, and his last was the famous {{w|Apollo 11}}, the first mission to land on the Moon, in 1969.&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
{{incomplete transcript|Don't remove this notice too soon.}}&lt;br /&gt;
&amp;lt;p&amp;gt;[Two spacecraft, a Gemini capsule and an Agena Target Vehicle with a loose tether connecting them, are in space over the Mediterranean with Italy in the background]&amp;lt;/p&amp;gt;&lt;br /&gt;
Spacecraft: Houston, the view is superb. We can see the continents spread out below us, right where they've been since the earth formed.&lt;br /&gt;
&amp;lt;p&amp;gt;[Caption beneath panel:]&amp;lt;/p&amp;gt;&lt;br /&gt;
I still can't believe we developed spaceflight before we developed spaceflight before we figured out that the continents moved.&lt;br /&gt;
&lt;br /&gt;
==Trivia==&lt;br /&gt;
The comic may be intended to show Gemini 8's mission, with Armstrong on board, to dock with the previously launched {{w|Agena target vehicle|target vehicle}}. However, severe control issues with that mission precluded many of the planned aims (including the experiments that involved a tethered connection). The mission that might at some point have looked most like this depiction was perhaps {{w|Gemini 11}}, also launched in 1966 but without Armstrong being on board.&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&amp;lt;noinclude&amp;gt;&lt;/div&gt;</summary>
		<author><name>NotaBene</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=3129:_Archaeology_Research&amp;diff=384308</id>
		<title>3129: Archaeology Research</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=3129:_Archaeology_Research&amp;diff=384308"/>
				<updated>2025-08-15T20:33:38Z</updated>
		
		<summary type="html">&lt;p&gt;NotaBene: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 3129&lt;br /&gt;
| date      = August 15, 2025&lt;br /&gt;
| title     = Archaeology Research&lt;br /&gt;
| image     = archaeology_research_2x.png&lt;br /&gt;
| imagesize = 381x433px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = The academic archaeology establishment is suppressing my breakthroughs because of the disruption it would bring to their prepared-core flake-based toolmaking industry.&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
{{incomplete|This page was created a long time ago and improved recently. Don’t remove this notice too soon.}}&lt;br /&gt;
&lt;br /&gt;
In this comic, [[Cueball]] is presenting an improvement over the stone {{w|arrowhead}}s used by early humans. Stone arrowheads are produced by {{w|Knapping|shaping flint}} by expertly knocking flakes off a suitable raw piece of stone. By contrast, once {{w|Copper extraction#History|the use of metals}} is developed, a far more scalable industry can eventually cast smooth copper arrowheads as depicted in Cueball’s presentation.&lt;br /&gt;
&lt;br /&gt;
Metalworking requires some knowledge of ores and often (depending upon the metal) how to maintain and control high temperatures. The era of mass-produced metal objects heralded the waning of the {{w|Stone Age}} and eventually led to the {{w|Bronze Age}}, by way of the copper-using {{w|Chalcolithic}}, in some parts of the world. Once copper arrowheads were produced, in any given region, the practice of flint arrowheads largely died out.&lt;br /&gt;
&lt;br /&gt;
It seems that Cueball was tasked to look at details of active {{w|Paleolithic}} culture (the &amp;quot;Old Stone Age&amp;quot;), in the era that extended until not quite 10,000&amp;amp;nbsp;BCE, but has accidentally 'discovered' the developments (from around 6,500&amp;amp;nbsp;BCE to 5,000&amp;amp;nbsp;BCE) that actually superseded the practices that he was supposed to be studying, initially with lumps of copper nuggets being taken and cold-hammered into into awls, chisels, ornaments and spear heads, later learning to use heat to soften it and after that to be able to melt and cast it.&lt;br /&gt;
&lt;br /&gt;
The caption below the comic tells us that Cueball has based his entire {{w|dissertation}} on the false proposition that an archaeologist's job is to recreate history rather than revealing it. This would be disastrous for Cueball, as dissertations take a large amount of time and effort to complete, and he may have used the effort to effectively reengineer several thousand years of human development, leading away from the original subject.&lt;br /&gt;
&lt;br /&gt;
The title text claims that his 'discoveries' are unappreciated ''not'' because they are useless (in a completely context, they might be an exciting academic pursuit), but because the academic 'establishment' has a stranglehold on the arrowhead industry and too many vested interests in flint-knapping to allow the {{w|disruptive innovation}} that this new change to copper weaponry might herald.  This is a humorous mashup of two classes of conspiracy theories, those of academia suppressing &amp;quot;the TRUTH&amp;quot; (according to pseudo-historians) and of oil, pharmaceutical, or other industries suppressing &amp;quot;free energy&amp;quot; or other such &amp;quot;innovations&amp;quot;.&lt;br /&gt;
&lt;br /&gt;
&amp;lt;!--- ...something about how this is double-anachronistic..? Unless, of course, this is a pre-Chalcolithic Cueball making a presentation to Paleolithic group *with a pull-down presentation board/screen*... --&amp;gt;&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
:[Cueball stands in front of a roll-down projector screen, pointing to it behind him as he looks forward. The screen depicts two arrowheads: On the left is an arrowhead hewn from stone with the subtitle &amp;quot;Stone (traditional)&amp;quot;. On the right is a smoother arrowhead with the subtitle &amp;quot;Copper (my method)&amp;quot;]&lt;br /&gt;
:Cueball: In the process of analyzing Paleolithic stone toolmaking, I've stumbled on an improved technique for producing points and blades.&lt;br /&gt;
:Cueball: Instead of stone, my method is based on the heating and shaping of copper ore...&lt;br /&gt;
&lt;br /&gt;
:[Caption below the panel:]&lt;br /&gt;
:Too late, I realized that my entire archaeology dissertation had been based on a colossal misunderstanding.&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&amp;lt;noinclude&amp;gt;&lt;br /&gt;
8&lt;/div&gt;</summary>
		<author><name>NotaBene</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=3085:_About_20_Pounds&amp;diff=376559</id>
		<title>3085: About 20 Pounds</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=3085:_About_20_Pounds&amp;diff=376559"/>
				<updated>2025-05-06T23:49:38Z</updated>
		
		<summary type="html">&lt;p&gt;NotaBene: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 3085&lt;br /&gt;
| date      = May 5, 2025&lt;br /&gt;
| title     = About 20 Pounds&lt;br /&gt;
| image     = about_20_pounds_2x.png&lt;br /&gt;
| imagesize = 666x278px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = In addition to gravity, burritos interact through the strong, weak, and electromagnetic forces, which is believed to be a major contributor to their popularity.&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
{{incomplete|Created by a £20 20-LB PARTICLE. Are any categories missing? Don't remove this notice too soon.}}&lt;br /&gt;
&lt;br /&gt;
The nature of {{w|dark matter}} is a significant unsolved problem in physics. In an effort to solve the problem, [[Cueball]] and [[Ponytail]] appear to have used occult methods to conjure a supernatural {{w|oracle}} (something which would present its own challenges to our understanding of the physical world) in order to demand an answer from it. There may be a pun here, in that they are using 'dark magic' to communicate with something from the 'dark realm' on the assumption that it will know about dark matter. However, the word 'dark' in this context simply means that we do not know how to observe it; dark matter is not evil or satanic{{cn}} (though [[Randall]] may consider it [[:Category:Comics with cursed items|cursed]]). The oracle is used very similarly to how people have been using and customizing large language models.&lt;br /&gt;
&lt;br /&gt;
In general, not all forces interact with all particles; indeed, {{w|gravity}} is the only force that is (believed to) interact with everything. If a force doesn't interact with a particle, then its existence cannot be observed via disturbances in that force. In particular, something that doesn't interact with electromagnetism cannot be 'seen', as photons will pass through it completely unaffected, and likewise cannot be felt, because collision is a side effect of the {{w|Pauli exclusion principle}}.&lt;br /&gt;
&lt;br /&gt;
Even {{w|neutrino}}s -- famous for interacting with ''almost'' nothing -- still in fact interact via the {{w|weak force}}, allowing them to be detected with sufficiently large tanks of dense material (as most atoms do in fact interact with the weak force, however weakly). A particle that interacts with ''nothing'' except gravity could only be detected by a {{w|LIGO|gravitational telescope}}.&lt;br /&gt;
&lt;br /&gt;
However, even if a particle does interact via a given force, an interaction is possible only if energy is conserved. If dark matter is entirely due to a single kind of particle, and the fundamental mass of that particle is ''twenty pounds'' (approximately 9 kg) -- an absolutely ludicrous amount of energy for particle physics -- then any interaction would, roughly speaking, have to involve an equally ludicrous amount of other particle mass being in exactly the right place and time, a coincidence that could easily reach &amp;quot;never in the history of the universe&amp;quot; levels. By comparison, the {{w|top quark}}, otherwise the heaviest single particle with a mass over a hundred times that of the proton, is still nevertheless around a tenth of a trillionth of a trillionth of a pound.&lt;br /&gt;
&lt;br /&gt;
Under more normal circumstances, we might still hope to observe the properties of the particle via creating it ourselves under controlled laboratory conditions. But again, there is no reasonable way to focus the energy required into a single particle interaction. The {{w|Large Hadron Collider|most powerful particle accelerator in the world}}, for example, peaks at about ten thousand times the mass of the proton, a solid billion times less energy than required, so it's out too.&lt;br /&gt;
&lt;br /&gt;
Despite all this, twenty pounds is also much too ''small'' to be detectable via gravitational interaction -- its {{w|Perturbation_(astronomy)|influence on the orbits of planets}}, say, or the strength of its {{w|gravitational lensing}} effect, would be entirely negligible. Thus in the scenario posed by the comic, there is essentially no plausible way to observe more about dark matter while on Earth. Even if we did find some naturally occurring such particles around and had instruments that could measure such small gravitational forces, since it would interact only via gravity, the only properties it could have other than mass would be its decay rates from other particles -- which, again, would all be essentially nil due to its mass.&lt;br /&gt;
&lt;br /&gt;
The oracle proceeds to break expectations by suggesting that Ponytail and Cueball go out for {{w|burrito}}s, something generally considered non-scientific. When faced with the apparent futility of continuing to try to investigate dark matter, the oracle predicts that going out for burritos is precisely as productive as any other approach -- i.e., not at all.&lt;br /&gt;
 &lt;br /&gt;
The title text observes that burritos interact through all four known {{w|fundamental interactions}}, making burritos popular. The electromagnetic force mediates the chemical reactions leading to a burrito's taste, the strong force keeps atomic nuclei together, and gravity gives burritos heft, all of which are helpful for enjoying them. It's hard to see how the weak force, which takes part in radioactive decay, helps with burrito enjoyment or popularity, but the weak force is responsible for the nuclear fusion that allowed the complex elements of the burrito to exist in the first place.&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
:[Cueball and Ponytail are standing in front of a pentacle with lit candles at the corners. A black sphere, the oracle, is floating above the middle of the pentacle.]&lt;br /&gt;
:Ponytail: Dear oracle,&lt;br /&gt;
:Ponytail: What is the nature of dark matter?&lt;br /&gt;
:Oracle: It's about 20 pounds.&lt;br /&gt;
&lt;br /&gt;
:[Close up of oracle]&lt;br /&gt;
:Off-panel: What?&lt;br /&gt;
:Oracle: Dark matter is a particle. It weighs about 20 pounds.&lt;br /&gt;
:Oracle: It only interacts through gravity.&lt;br /&gt;
&lt;br /&gt;
:[Same view as first panel]&lt;br /&gt;
:Cueball: Only gravity, huh?&lt;br /&gt;
:Cueball: So none of our experiments are really going to tell us any more about it, then.&lt;br /&gt;
:Oracle: Afraid not.&lt;br /&gt;
&lt;br /&gt;
:[Same view as first and third panels, except Cueball lifted his forearm.]&lt;br /&gt;
:Cueball: So what do we do?&lt;br /&gt;
:Oracle: You should go out for burritos.&lt;br /&gt;
:Ponytail: How will that help?&lt;br /&gt;
:Oracle: Well&lt;br /&gt;
:Oracle: Burritos are pretty good.&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 Ponytail]]&lt;br /&gt;
[[Category:Physics]]&lt;br /&gt;
[[Category:Food]]&lt;br /&gt;
&amp;lt;/noinclude&amp;gt;&lt;/div&gt;</summary>
		<author><name>NotaBene</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2939:_Complexity_Analysis&amp;diff=343238</id>
		<title>2939: Complexity Analysis</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2939:_Complexity_Analysis&amp;diff=343238"/>
				<updated>2024-05-30T02:19:58Z</updated>
		
		<summary type="html">&lt;p&gt;NotaBene: /* Explanation */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 2939&lt;br /&gt;
| date      = May 29, 2024&lt;br /&gt;
| title     = Complexity Analysis&lt;br /&gt;
| image     = complexity_analysis_2x.png&lt;br /&gt;
| imagesize = 430x361px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = PERPETUALLY OPTIMISTIC CASE: Early in the execution, our research group makes a breakthrough on proving P=NP.&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
{{incomplete|Created by a PERPETUALLY OPTIMISTIC BOT - Please change this comment when editing this page. Do NOT delete this tag too soon.}}&lt;br /&gt;
&lt;br /&gt;
Cueball is teaching about an algorithm's complexity. The average-case runtime of the algorithm, O(n log n), is written in {{w|Big O notation}}, expressing the asymptotic runtime of the algorithm as the number of inputs to it grows larger and larger. &lt;br /&gt;
&lt;br /&gt;
The &amp;quot;best case&amp;quot; for an algorithm is typically its runtime when its inputs have optimal values and it runs in as little time as possible. The joke here is that not only does it run this quickly, but that its runtime is actually an hour shorter because of an act of Congress changing daylight saving time, potentially giving it ''negative'' 'runtime'. &lt;br /&gt;
&lt;br /&gt;
The &amp;quot;worst case&amp;quot; refers to the movie {{w|Groundhog Day (movie)|Groundhog Day}}, in which the same events occur over and over in a sort of time loop. This may be an indirect reference to the {{w|halting problem}}, a famous problem in computer science of determining whether a given algorithm will ever halt. The halting problem is {{w|undecidable}}, meaning that there is no general algorithm that can tell whether a given algorithm will halt. The movie has been reference before in [[1076|1076: Groundhog Day]].&lt;br /&gt;
&lt;br /&gt;
The title text refers to perhaps an even more famous problem in computer science, {{w|P versus NP problem|P versus NP}}. This asks whether every problem whose solution can be quickly verified (in nondeterministic polynomial time, {{w|NP_(complexity)|NP}}) can also be quickly solved (in polynomial time, {{w|polynomial time|P}}). The P-versus-NP problem is one of the seven {{w|Millennium Prize Problems}}, and as such has a $1 million prize for its solution.  Presumably, the problem discussed here is in NP, so if P=NP, its worst-case runtime would be some polynomial ''O(n^k)''.  However, P vs. NP is a Millennium Prize Problem for a reason, and most computer scientists expect that P != NP, so hoping for a breakthrough in proving P=NP is &amp;quot;perpetually optimistic&amp;quot;.&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
{{incomplete transcript|Do NOT delete this tag too soon.}}&lt;br /&gt;
&lt;br /&gt;
:[Cueball is holding a presentation pointer stick, pointing to a table behind him]&lt;br /&gt;
:[Title above the table:]&lt;br /&gt;
:Results of algorithm complexity analysis:&lt;br /&gt;
:[Table content:]&lt;br /&gt;
:Average case | O(n log n)&lt;br /&gt;
:Best case | Algorithm turns out to be unnecessary and is halted, then Congress enacts surprise daylight saving time and we gain an hour&lt;br /&gt;
:Worst case | Town in which hardware is located enters a Groundhog Day scenario, algorithm never terminates&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
&lt;br /&gt;
[[Category:Comics featuring Cueball]]&lt;br /&gt;
[[Category:Programming]]&lt;br /&gt;
[[Category:Daylight saving time]]&lt;/div&gt;</summary>
		<author><name>NotaBene</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2922:_Pub_Trivia&amp;diff=340189</id>
		<title>2922: Pub Trivia</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2922:_Pub_Trivia&amp;diff=340189"/>
				<updated>2024-04-19T23:41:26Z</updated>
		
		<summary type="html">&lt;p&gt;NotaBene: /* Explanation */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 2922&lt;br /&gt;
| date      = April 19, 2024&lt;br /&gt;
| title     = Pub Trivia&lt;br /&gt;
| image     = pub_trivia_2x.png&lt;br /&gt;
| imagesize = 422x666px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = Bonus question: Where is London located? (a) The British Isles (b) Great Britain and Northern Ireland (c) The UK (d) Europe (or 'the EU') (e) Greater London&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
{{incomplete|Created by A BOT ASKING BAD TRIVIA QUESTIONS - Please change this comment when editing this page. Do NOT delete this tag too soon.}}&lt;br /&gt;
&lt;br /&gt;
Many pubs have {{w|pub trivia|trivia nights}}, where patrons form teams and compete to answer questions about a range of topics. The typical goal for trivia games is that they be challenging, yet possible, and so the questions whose answers are too difficult or too easy generally make for a poor game. In addition, it's usually preferable that questions are clearly worded with a single, objective answer, so as to avoid disputes about which answers are correct.&lt;br /&gt;
&lt;br /&gt;
Cueball has apparently been hired by one bar to infiltrate ''other'' bars' quiz nights and ask particularly bad questions. The implication is that this will make the games unpleasant, in the hopes that people will leave, and possibly go to the bar that hired Cueball. &lt;br /&gt;
&lt;br /&gt;
Cueball uses a variety of strategies to write bad questions, including questions that are trivial (where the answer is painfully obvious), unanswerable (either because there is no answer, or because the answer is unknown), ambiguously worded or arguable. &lt;br /&gt;
&lt;br /&gt;
Many of his questions could be altered slightly to make them more reasonable for such a game, but that would defeat Cueball's purpose. &lt;br /&gt;
&lt;br /&gt;
{| class=&amp;quot;wikitable&amp;quot;&lt;br /&gt;
|-&lt;br /&gt;
! Question !! Problem with the Question !! Explanation !! More Reasonable Alternative(s)&lt;br /&gt;
|-&lt;br /&gt;
|1. Which member of {{w|BTS}} has a birthday this year?||Multiple correct answers||All people have birthdays every year (other than pedantic exceptions due to calendar issues or someone dying before their birthday, none of which apply in this case). Therefore, all seven members of BTS have birthdays this year.||Which member of BTS has a birthday today/this week/this month? Which member of BTS turns a [specific age] this year?&lt;br /&gt;
|-&lt;br /&gt;
|2. How many sides does a {{w|platonic solid}} have?||Multiple answers, ambiguous language||There are five {{w|Platonic solids}}, with 4, 6, 8, 12 or 20 faces (colloquially called sides) in {{w|Euclid|Euclidean}} {{w|Euclidean geometry|3-space}}. The solids have, respectively, 6, 12, 8, 30 and 30 edges (also occasionally called sides colloquially). A more devious quizmaster might actually include this as a trick question with the correct answer being 'zero', since strictly speaking solids do not have 'sides', but that doesn't appear to be the case here.||How many Platonic solids are there? What is the highest number of faces on a Platonic solid? How many faces does a [specific platonic solid] have? How many faces/edges/vertices do ''all'' the platonic solids have (i.e., added together)?&lt;br /&gt;
|-&lt;br /&gt;
|3. What is the smallest lake in the world?||Arguable||While the largest lakes are relatively straightforward to categorize, smaller bodies of water range in size down to individual puddles. There is no clear, definitional line at which a body goes from being a lake to a pond, for example. In addition, the size of small lakes will fluctuate due to variability in precipitation, and other weather effects, and some lakes only exist for brief periods (intermittent lakes). Hence, which small bodies of water are &amp;quot;lakes&amp;quot; and which is the smallest can't be clearly answered, without specifying a whole list of parameters and standards.||What lake has the largest surface area in the world? What is the world's deepest lake? What lake is recognized by the Guinness World Records as the world's smallest? (Benxi Lake in China).&lt;br /&gt;
|-&lt;br /&gt;
|4. Which Steven Spielberg movie features more shark attacks, {{w|Jaws (movie)|Jaws (1975)}} or {{w|Lincoln (movie)|Lincoln (2012)}}?||Trivial||Jaws is a famous movie about a killer shark, and features at least five fatal shark attacks. Lincoln is a movie about the passage of the Thirteenth Amendment to the U.S. Constitution, containing zero shark attacks.{{Citation needed}} Anyone with even a passing familiarity with American popular culture should be able to get this one right, and someone with no knowledge could likely guess the answer from the titles alone.||How many fatal shark attacks occur in &amp;quot;Jaws&amp;quot;? How many times is the shark seen on screen? Which film won more {{w|Academy Awards}}?&lt;br /&gt;
|-&lt;br /&gt;
|5. How many planets were there originally?||Ambiguous||The question doesn't specify a time frame or culture, and also doesn't specify that it's referring to our solar system (in the observable universe, there are almost certainly trillions of planets, as there are trillions of stars and almost every one of them has a planet orbiting it). Additionally, it asks how many &amp;quot;were there&amp;quot;, as opposed to how many planets were known (the number which are known and defined as such is far smaller than the number of planets in the universe).  The word &amp;quot;originally&amp;quot; could imply the origin of the solar system, or the origin of the universe, in which case the answer would be 'zero' as no planets had yet accreted.||How many planets were known to Ancient Greece? How many planets were known to science prior to the invention of the telescope? How many planets were called as such in our Solar System prior to Pluto's reclassification?&lt;br /&gt;
|-&lt;br /&gt;
|6. What {{w|NFL}} player has scored the most points outside of a game?||Ambiguous, Unknowable||The term &amp;quot;scored the most points&amp;quot; generally only applies within the context of a game, making it very unclear what kind of &amp;quot;points&amp;quot; the question is referring to. Does it mean points in non-NFL games? Points in games other than football? Points outside the context of any game at all (such as 'making a point' in conversation)? Even if this were clarified, points scored in official games in professional sports leagues are meticulously recorded and published, points scored in any other context are not, so the question is likely impossible to answer. Arguably, Brian Jordan would be an answer, with 121 Minor League and 755 MLB runs scored (points).||Which NFL player scored the most points in a game/season/career?   &lt;br /&gt;
|-&lt;br /&gt;
|7. The {{w|Wright brothers}} built the first airplane. Who built the last one?||Unknowable||Orville and Wilbur Wright are widely credited with designing and building the first airplane (in the sense of a heavier-than-air flying machine that could take off, steer and land under its own power). In modern times, design and construction of airplanes has become a huge, international industry, with many airplanes of widely varying sizings being built each year. Since airplanes are built continuously, which one was made most recently depends on when the question is asked (and would be very difficult for the average person to know -- and not trivial for even a member of the aerospace industry to know). If it's asking about the last airplane ''ever'', that's impossible to know, since that plane hasn't been built yet (and hopefully won't for a very long time). Also, the question seems to be asking for a name, but modern airplanes are generally designed and built by companies, without a single person (or even a small number of people) being responsible.||Who built the first airplane '''after''' the Wright brothers?  When was the final Wright Model B aircraft built?&lt;br /&gt;
|-&lt;br /&gt;
|8. Is every even number greater than 2 the sum of two primes?||Unknown, Possibly unknowable||This is a famous, centuries-old {{w|open question}} in math known as {{w|Goldbach's conjecture}}. Mathematicians widely believe that it is true, and it has held true for every number checked up to 4 ⋅ 10&amp;lt;sup&amp;gt;18&amp;lt;/sup&amp;gt;, but since it's impossible to check every number, we can't assume it's universally true. No mathematical proof of its veracity exists at this point. Since it is {{w|Gödel's incompleteness theorems|known}} that something can be true but impossible to prove (and, being true, impossible to disprove), this may be the situation forever.||According to which mathematical conjecture is every even number greater than 2 the sum of two primes?&lt;br /&gt;
|-&lt;br /&gt;
|9. Not counting {{w|Canberra}}, what city is the capital of {{w|Australia}}?||No answer exists||Australia has only one capital (unlike some countries, which divide the legislative and administrative capitals, for example), and that capital is Canberra. Hence, by definition, there is no national capital &amp;quot;not counting Canberra&amp;quot;. Though each constituent state also has its state capital (inclusive of Canberra, which is the entirety of its {{w|Australian Capital Territory|own state territory}}), this would still leave us with an ambiguous choice. ||What city is the capital of Australia?  What is the largest city in Australia (as of 2024)? What is the smallest state capital in Australia? Not counting Canberra, what city was the most recently founded state capital of Australia?&lt;br /&gt;
|-&lt;br /&gt;
|10. Who played the drums?||Trivial, yet unknowable without context||As worded, the question could be answered with anyone who's ever played the drums, in any context, whether professional or not, in all of history. This would include a huge number of people, most of whom would not be well-known. Most people would be able to offer a technically correct answer, and almost none of them would be interesting.  Or maybe the host is wondering who it was that played drums that night, as part of the bar's live music.||Who played the drums for some specific band/album/track/concert?&lt;br /&gt;
|-&lt;br /&gt;
|(Title text) Where is {{w|London}} located? (a) the {{w|British Isles}} (b) {{w|Great Britain and Northern Ireland}} (c) the {{w|United Kingdom|UK}} (d) {{w|Europe}} (or 'the {{w|European Union|EU}}') (e) {{w|Greater London}}||Multiple answers||All choices are technically correct as they are various geographical areas that include the city of London, England. Also note that the City of London is different from the city ''named'' London as it is technically surrounded by it, hence (e) as an answer. Answer (d) is both correct and incorrect, as it conflates a geographic region, Europe, and a political body, the European Union. The United Kingdom (and therefore London) {{w|Brexit|left the EU}} in 2020, but is still geographically included in Europe. In addition, 'the UK' is short for the United Kingdom of Great Britain and Northern Ireland, so answers (b) and (c) refer to the same thing. This also does not get into cities named London outside of the UK, so for example &amp;quot;Ontario&amp;quot; or &amp;quot;Canada&amp;quot; could also be possible answers if the test designer were truly evil, thus making none of the answers correct. ||What is the capital of Great Britain? (answer: London)&amp;lt;br&amp;gt;Where is London, England '''not''' located? (a) the British Isles (b) Great Britain and Northern Ireland (c) the UK (d) Europe (e) the EU (answer: (e))&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
{{incomplete transcript|Do NOT delete this tag too soon.}}&lt;br /&gt;
&lt;br /&gt;
:[Cueball, holding a wireless microphone in one hand and a pencil and notebook in the other, reading from the notebook]:&lt;br /&gt;
:Welcome to pub trivia! Round one is 10 questions:&lt;br /&gt;
&lt;br /&gt;
# Which member of BTS has a birthday this year?&lt;br /&gt;
# How many sides does a platonic solid have?&lt;br /&gt;
# What is the smallest lake in the world?&lt;br /&gt;
# Which Steven Spielberg movie features more shark attacks - ''Jaws'' (1975) or ''Lincoln'' (2012)?&lt;br /&gt;
# How many planets were there originally?&lt;br /&gt;
# What NFL player has scored the most points outside of a game?&lt;br /&gt;
# The Wright brothers built the first airplane. Who built the last one?&lt;br /&gt;
# Is every even number greater than 2 the sum of two primes?&lt;br /&gt;
# Not counting Canberra, what city is the capital of Australia?&lt;br /&gt;
# Who played the drums?&lt;br /&gt;
&lt;br /&gt;
:[Caption below the panel]:&lt;br /&gt;
:A local pub trivia place hired me to run bad quizzes at competing bars.&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
[[Category: Comics featuring Cueball]]&lt;br /&gt;
[[Category: Comics featuring real people]]&lt;br /&gt;
[[Category: American football]]&lt;br /&gt;
[[Category: Astronomy]]&lt;br /&gt;
[[Category: Geography]]&lt;br /&gt;
[[Category: Math]]&lt;br /&gt;
[[Category: Music]]&lt;/div&gt;</summary>
		<author><name>NotaBene</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2369:_All-in-One&amp;diff=330305</id>
		<title>2369: All-in-One</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2369:_All-in-One&amp;diff=330305"/>
				<updated>2023-12-06T23:13:44Z</updated>
		
		<summary type="html">&lt;p&gt;NotaBene: /* Functions completely unrelated to printing or scanning */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 2369&lt;br /&gt;
| date      = October 7, 2020&lt;br /&gt;
| title     = All-in-One&lt;br /&gt;
| image     = all_in_one.png&lt;br /&gt;
| titletext = Changes with this update: If you use the combined scan-shred function, it now performs them in that order instead of the reverse, saving a HUGE amount of CPU time.&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
This is a parody of an {{w|all-in-one printer}}, a printer which typically can perform several functions, usually printing, scanning, copying, and faxing. This machine starts off with fairly standard printer functions but quickly becomes absurd. The machine is accordingly oversized, making room for all the status indicators and (presumably) the extra internal parts required to accomplish the uncommon functions.&lt;br /&gt;
&lt;br /&gt;
The title text reads like a software update's patch notes; the mentioned feature says that if both the &amp;quot;scan&amp;quot; and &amp;quot;shred&amp;quot; options are selected, it now scans documents ''before'' trying to destroy them. This indicates that, prior to this update, the machine destroyed documents and then scanned the pieces and tried to reconstruct them, identifying the original location of each shredded piece on the original sheet(s) of paper, which takes a large amount of processing power. Such a matter SEEMS like an unrealistic oversight on the developers' part, but real developers of both games and machinery have made similarly huge errors both before and after this comic was uploaded.&lt;br /&gt;
&lt;br /&gt;
===List of functions===&lt;br /&gt;
&amp;lt;i&amp;gt; Certain functions are lit green, indicating they are in use. To show which ones are in use, they are highlighted &amp;lt;span style=&amp;quot;background:#acfb90&amp;quot;&amp;gt;green (selected)&amp;lt;/span&amp;gt;.&amp;lt;/i&amp;gt;&lt;br /&gt;
&lt;br /&gt;
====''Functions that most all-in-one printers do''====&lt;br /&gt;
*&amp;lt;span style=&amp;quot;background:#acfb90&amp;quot;&amp;gt;'''{{w|Printer (computing)|Print}}''' (selected)&amp;lt;/span&amp;gt;: The most common function that a printer needs to do. A digital document or graphic exists on a computer, is sent to the printer and the printer transfers the document onto paper using ink or toner.&lt;br /&gt;
*'''{{w|Photocopier|Copy}}''': A copy function allows a user to place a document on the integrated/linked scanning bed and the printer will immediately make a copy of the document as if it were a traditional 'analogue' photocopier.&lt;br /&gt;
*&amp;lt;span style=&amp;quot;background:#acfb90&amp;quot;&amp;gt;'''{{w|Fax}}''' (selected)&amp;lt;/span&amp;gt;: A fax function sends a scanned document by telephone to another telephone number. The receiver fax machine will reconstruct the document and print it.  A machine that has this function is usually also able to act as a receiver for faxes sent from elsewhere, though that setting wouldn't be visible in this configuration group.&lt;br /&gt;
*'''{{w|Image scanner|Scan}}''': A scan function is used to optically scan images or documents into digital forms so that they can be used by computers. It can be seen as the reverse operation of the printer function.&lt;br /&gt;
*&amp;lt;span style=&amp;quot;background:#acfb90&amp;quot;&amp;gt;'''{{w|Collate}}''' (selected)&amp;lt;/span&amp;gt;: To sort multiple copies of printed documents into sequences of individual page order, usually across multiple output trays having one sequence for each copy, especially before binding.&lt;br /&gt;
*&amp;lt;span style=&amp;quot;background:#acfb90&amp;quot;&amp;gt;'''{{w|Staple (fastener)|Staple}}''' (selected)&amp;lt;/span&amp;gt;: To staple together multipage documents, especially for each collated copy.  This function is usually found only in high-end printers.&lt;br /&gt;
&lt;br /&gt;
====''Functions that relate to printers or scanners, that most cannot do''====&lt;br /&gt;
*'''Staple Removal''': Although mechanical removal of staples can be done by various devices, it's often not a ''simple'' task.  Staples can be bent and mangled in many ways, and detaching them from paper without causing damage can require fairly complex intelligence.&lt;br /&gt;
*'''{{w|Paper shredder|Shred}}''': A shredder function is used to destroy paper for privacy or security by cutting it into strips or fine particles. Normally this task is handled by another specialised machine called a shredder, but this time it is already inbuilt into the printer.&lt;br /&gt;
*'''{{w|Translate}}''': If the paper text is in another language, this would presumably translate it for you — after scanning and {{w|Optical character recognition|OCRing}}. This would actually be a helpful function and may be available on recent scanner-printers, although usually in the software that comes with the printer, on the host computer, rather than inside the printer itself.&lt;br /&gt;
*'''Add those {{w|Perforation|perforated}} edge strips that are so fun to tear''': In an earlier era, {{w|dot matrix printers}} and {{w|line printer|line printers}} were the common standard, and used a type of {{w|continuous stationery}}, which was manufactured with perforated strips along each side, with regularly spaced holes which allowed spiked wheels to advance the paper through the printer. Tearing these strips off after printing was once a standard task when using a printer. This type of stationery is now obsolete, but many people of Randall's generation become oddly nostalgic about removing the strips from the old style of paper -- the strips are kind of fun to play with.  Note that the old stationery was designed such that the remaining page typically had a &amp;quot;standard&amp;quot; paper width, with the strips adding additional width. It's unclear if this function is adding ''perforations'' to standard paper, which would leave it too narrow once the resulting edge strips were removed, or is somehow adding perforated ''strips'' to it.&lt;br /&gt;
&lt;br /&gt;
====''Functions completely unrelated to printing or scanning''====&lt;br /&gt;
*'''Summarize''': Presumably this function would summarize a printed material for the user. Similar to the translate function, a document would need to be scanned and OCRed first. Then a machine learning algorithm would comprehend the text and reduce it in length while keeping the important points. {{w|Automatic_summarization|Automatic text summarization}} does exist, although the technology is not as widely used as automatic translation.&lt;br /&gt;
*'''{{w|plagiarism|Plagiarize}}''': This function is unclear. Maybe it would plagiarize a paper for a certain subject? It would also be legally questionable. (Maybe it plagiarizes printer techniques, in which case this might be useful, though only in edgecases)&lt;br /&gt;
*'''Roll''': This function would probably roll up paper into a roll, like how the newspaper is rolled up for distribution by paperboys.&lt;br /&gt;
*'''Burn''': Perhaps the printer has this function for greater assurance that sensitive information will be irretrievably destroyed.  Historically, some printers could be at risk of catching fire if they jammed in a particular way, and so the &amp;quot;{{w|lp0 on fire}}&amp;quot; error code was created to signal that it should be investigated urgently.&lt;br /&gt;
*'''Eat''': A printer is often said to &amp;quot;eat&amp;quot; paper by mangling either the input or output. Printer failure is also the modern descendant of the classic excuse for late homework, &amp;quot;{{w|the dog ate my homework}}&amp;quot;.&lt;br /&gt;
*'''{{w|paper airplane|Fold airplane}}''': This function makes paper airplanes out of paper stored in the printer, or documents being printed. Paper airplane folding machines [https://www.youtube.com/watch?v=MSdb_Rpv5p0 are a thing], so it'd be possible to design something to fold an origami flower, as well.&lt;br /&gt;
*'''{{w|Origami}} flower''': Similar to the previous one, this function makes flowers using the origami paper folding process.&lt;br /&gt;
*'''{{w|Corrugate}}''': {{w|Corrugated fiberboard}} or cardboard is a kind of crinkled paper sandwiched between two sheets.  This provides structural strength for low weight.  Printers that jam can produce a paper that looks corrugated, but this is not an intended function, and corrugated fiberboard is not made with printers.&lt;br /&gt;
*'''{{w|Papier-mâché}}''': (Literally &amp;quot;chewed paper&amp;quot;) is a composite construction material consisting of paper pieces, bound with an adhesive, often a flour paste. The printer could use its &amp;quot;shred&amp;quot; and &amp;quot;eat&amp;quot; functions to produce the necessary materials, and any leftovers could be composted with the &amp;quot;biodegrade&amp;quot; function.&lt;br /&gt;
*'''{{w|Découpage}}''': An art form where paper printed with decorative images is glued onto an object (typically boxes, but also furniture) and covered with many layers of varnish so that the images appear painted onto the object. &lt;br /&gt;
*&amp;lt;span style=&amp;quot;background:#acfb90&amp;quot;&amp;gt;'''Notarize''' (selected)&amp;lt;/span&amp;gt;: A {{w|notary public}} is a person certified by a government to attest that certain kinds of legal documentation are legitimate and executed.  All-in-one printers and scanners may be able to recognize certain signs of legitimacy (e.g. the {{w|EURion constellation}}), but unless this printer has some tactile sensation, it cannot certify the identity of the person who signed the document as a human can.&lt;br /&gt;
*'''{{w|Biodegrade}}''': This would biodegrade the paper. Whether this would send it to an organic waste plant (which would be helpful) or actually house a composter inside the printer (which would be gross{{Citation needed}}) is unknown.&lt;br /&gt;
*&amp;lt;span style=&amp;quot;background:#acfb90&amp;quot;&amp;gt;'''Crumple and throw at trash like basketball''' (selected)&amp;lt;/span&amp;gt;: Many people, when done with a piece of paper, will crumple it up and throw it into a trash can from a distance as if playing basketball.  This wouldn't be a very useful feature in a printer, especially relative to its complexity.{{citation needed}}  For one thing, it would prevent the person who printed the document from using it (even if the user intends to throw away the paper eventually, presumably they need to use it at least once or they wouldn't print it), and it would also deny the user one of the few pleasures available in the office environment.  The specificity of this function name could suggest that other models of this printer (Even-More-In-One?) could imitate other sports, such as {{w|paper football}}.&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
:[A large printer-like machine, with the label All-in-One Paper Processor on the top left of it. There are three columns of functions, with a few of them having a green light. At the top of the machine is a &amp;quot;paper feed&amp;quot; tray. At the bottom of the machine, is a large hole, for outputting the paper.]&lt;br /&gt;
&lt;br /&gt;
:'''Column 1'''&lt;br /&gt;
:*Print (lit green)&lt;br /&gt;
:*Copy&lt;br /&gt;
:*Fax (lit green)&lt;br /&gt;
:*Shred&lt;br /&gt;
:*Scan&lt;br /&gt;
:*Translate&lt;br /&gt;
:*Summarize&lt;br /&gt;
:*Plagiarize&lt;br /&gt;
:*Collate (lit green)&lt;br /&gt;
&lt;br /&gt;
:'''Column 2'''&lt;br /&gt;
:*Staple (lit green)&lt;br /&gt;
:*Remove staples&lt;br /&gt;
:*Add those perforated edge strips that are so fun to tear&lt;br /&gt;
:*Roll&lt;br /&gt;
:*Burn&lt;br /&gt;
:*Eat&lt;br /&gt;
&lt;br /&gt;
:'''Column 3'''&lt;br /&gt;
:*Fold airplane&lt;br /&gt;
:*Origami flower&lt;br /&gt;
:*Corrugate&lt;br /&gt;
:*Paper-mâché&lt;br /&gt;
:*Découpage&lt;br /&gt;
:*Notarize (lit green)&lt;br /&gt;
:*Biodegrade&lt;br /&gt;
:*Crumple and throw at trash like a basketball (lit green)&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
&lt;br /&gt;
[[Category:Comics with color]]&lt;/div&gt;</summary>
		<author><name>NotaBene</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=Talk:2863:_Space_Typography&amp;diff=330301</id>
		<title>Talk:2863: Space Typography</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=Talk:2863:_Space_Typography&amp;diff=330301"/>
				<updated>2023-12-06T22:46:20Z</updated>
		
		<summary type="html">&lt;p&gt;NotaBene: &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;
&lt;br /&gt;
Are the dot's actually roughly in line with the distances?&lt;br /&gt;
&lt;br /&gt;
[[Special:Contributions/172.71.135.78|172.71.135.78]] 21:31, 4 December 2023 (UTC)&lt;br /&gt;
&lt;br /&gt;
Yes they are. I eyeballed with a screenruler and calculated  &lt;br /&gt;
&lt;br /&gt;
* 0.40 AU for Mercury  (Should be 0.37)&lt;br /&gt;
* 0.72 AU for Venus    (0.72)&lt;br /&gt;
* 1 AU for earth (reference)&lt;br /&gt;
* 1.54 AU for Mars (1.52)&lt;br /&gt;
* 5.24 AU for Jupiter (4.98)&lt;br /&gt;
&lt;br /&gt;
[[Special:Contributions/162.158.202.94|162.158.202.94]] 21:48, 4 December 2023 (UTC)&lt;br /&gt;
&lt;br /&gt;
But what size font?[[User:Danger Kitty|Danger Kitty]] ([[User talk:Danger Kitty|talk]])&lt;br /&gt;
:129 trillion pt, give or take. [[Special:Contributions/141.101.105.109|141.101.105.109]] 23:02, 4 December 2023 (UTC)&lt;br /&gt;
:: Thanks for the decimal-point check. This is my worksheet: [https://i.postimg.cc/tRsmk3c6/Oprimistic-AU.gif Image] (open in new tab) [[User:PRR|PRR]] ([[User talk:PRR|talk]]) 02:13, 5 December 2023 (UTC) &lt;br /&gt;
&lt;br /&gt;
The number of &amp;quot;e&amp;quot;s between h and r required to make Saturn line up is about 59 (tested using 27.2 pt font) [[User:Digin|Digin]] ([[User talk:Digin|talk]]) 22:17, 4 December 2023 (UTC)&lt;br /&gt;
: There are currently three different figures in the explanation for how many &amp;quot;e&amp;quot;s are needed. One says the title text is correct as written, brackets and ellipsis and all. One says 59. One says 85. They can't all be right.  [[User:LtPowers|LtPowers]] ([[User talk:LtPowers|talk]]) 13:22, 5 December 2023 (UTC)&lt;br /&gt;
:: &amp;quot;They can't all be right.&amp;quot; Well, they can, if they don't correspond to the same thing. Are we using the font size from the comic, or from the hover text? [[User:Rexon Mobile|Rexon Mobile]] ([[User talk:Rexon Mobile|talk]]) 15:39, 5 December 2023 (UTC)&lt;br /&gt;
&lt;br /&gt;
:: I think the [...] has to be condensing what should be a longer title text.  If is was &amp;quot;correct as written&amp;quot;, that's an extra 3 dots that don't correspond to planets or anything in that region of space.  So unless someone can find some objects in that part of space, I think &amp;quot;correct as written&amp;quot; should be vetoed.  Also, can't use periods, colons, or semicolons -- would need to separate the main sentence from the title text addition using perhaps a dash or a comma (as long as a comma isn't as comet). [[User:N0lqu|-boB]] ([[User talk:N0lqu|talk]]) 17:22, 5 December 2023 (UTC)&lt;br /&gt;
::: The sentence is using only the dots that are part of 'i's.  Although the comic's text refers to &amp;quot;dots&amp;quot; without specifying that restriction, we don't have to assume that 'j's and punctuation must also correspond to solar system bodies. [[User:BunsenH|BunsenH]] ([[User talk:BunsenH|talk]]) 20:06, 5 December 2023 (UTC)&lt;br /&gt;
:::: Who says only the dots over the i's are to be considered?  The comic certainly doesn't specify that... it just says &amp;quot;use the dots as a map&amp;quot;. Someone early on in the explanation made the ''assumption'' that only the dots on letters (i and j) could, but I don't believe that's a valid assumption. The fact that Randall doesn't end the sentence with a dot implies he knows that dot would count, so he didn't include it, though admittedly he did include a period on the title text. [[User:N0lqu|-boB]] ([[User talk:N0lqu|talk]]) 16:48, 6 December 2023 (UTC)&lt;br /&gt;
&lt;br /&gt;
I’m curious whether randall brute forced this, trained a neural network, or did it by hand. [[Special:Contributions/172.70.175.179|172.70.175.179]] 22:31, 4 December 2023 (UTC)&lt;br /&gt;
:He would probably answer: [[2173: Trained a Neural Net]] [[Special:Contributions/172.70.42.217|172.70.42.217]] 22:45, 4 December 2023 (UTC)&lt;br /&gt;
&lt;br /&gt;
Trying to prep an image of a comparison between actual orbits and the comic, but it's taking longer than i'd like &amp;lt;span style=&amp;quot;font-family: 'Comic Sans MS'&amp;quot;&amp;gt;[[User:SomeoneIGuess|someone, i guess]]&amp;lt;sup&amp;gt;([[User talk:SomeoneIGuess|talk i guess]]&amp;amp;#124;[[Special:Contributions/SomeoneIGuess|le edit list]])&amp;lt;/sup&amp;gt;&amp;lt;/span&amp;gt;  23:20, 4 December 2023 (UTC)&lt;br /&gt;
&lt;br /&gt;
I assume brackets around (i) are for the Saturn's rings? [[Special:Contributions/162.158.102.71|162.158.102.71]] 23:26, 4 December 2023 (UTC)&lt;br /&gt;
:Ooh, good call. Put that in.  [[User:LtPowers|LtPowers]] ([[User talk:LtPowers|talk]]) 13:22, 5 December 2023 (UTC)&lt;br /&gt;
:I assumed it was just a way to emphasize the i. In the comic, they are bolded, but that is not possible in title text. - [[Special:Contributions/172.68.27.133|172.68.27.133]] 22:28, 5 December 2023 (UTC)&lt;br /&gt;
&lt;br /&gt;
The long, rambling diatribe about literature seemed odd at first, but I think Charlotte Brontë would be proud she was able to represent Pluto and Charon. [[Special:Contributions/172.69.247.56|172.69.247.56]] 04:07, 5 December 2023 (UTC)&lt;br /&gt;
:I don't understand. What's this about Charlotte Brontë? I don't see any reference to her in this comic.[[Special:Contributions/162.158.155.112|162.158.155.112]] 20:17, 5 December 2023 (UTC)&lt;br /&gt;
:: It's a joke about umlauts. [[Special:Contributions/172.69.247.48|172.69.247.48]] 06:37, 6 December 2023 (UTC)&lt;br /&gt;
&lt;br /&gt;
For what it's worth, the asteroid belt spans the area covered by the word &amp;quot;measure&amp;quot; [[Special:Contributions/172.71.222.152|172.71.222.152]] 14:10, 5 December 2023 (UTC)&lt;br /&gt;
:It would be nice if the word gaps were aligned that way, but there is no obvious alignment with either the edges of the asteroid belt, or the location of the Kirkwood gaps. The asteroid belt would stretch from the middle of the M in &amp;quot;measure&amp;quot; to the P in &amp;quot;space&amp;quot;, with the most prominent Kirkwood gaps corresponding roughly to the letters A, R and E. [[User:Rexon Mobile|Rexon Mobile]] ([[User talk:Rexon Mobile|talk]]) 15:33, 5 December 2023 (UTC)&lt;br /&gt;
:If he really wanted to represent the asteroids, I think he might have found a way to include a word like &amp;quot;riiii[...]iiight&amp;quot; so there would be lots of dots. [[User:Barmar|Barmar]] ([[User talk:Barmar|talk]]) 15:51, 5 December 2023 (UTC)&lt;br /&gt;
::So '''a'''steroids are mostly between the As in &amp;quot;measure&amp;quot; and &amp;quot;space&amp;quot;. Neat. --[[Special:Contributions/172.71.114.63|172.71.114.63]] 19:18, 6 December 2023 (UTC)&lt;br /&gt;
&lt;br /&gt;
I added the table with the count of 'e's and adjusted the wording where it said 85 'e's from the Sun to say an extra 13 'e's in the word &amp;quot;here&amp;quot;. I worked this out using an image from Wikipedia (https://en.wikipedia.org/wiki/Solar_System#/media/File:Solar_System_distance_to_scale.svg) in PowerPoint but don't have upload privileges to post. Would be nice if someone could do that. [[User:Denver87|Denver87]] ([[User talk:Denver87|talk]]) 15:30, 5 December 2023 (UTC)&lt;br /&gt;
&lt;br /&gt;
Amazingly (assuming my math was right so please someone check) the sun to scale would be very close to the size of the actual dots used to represents the planets. (Planets wouldn't be visible.)&lt;br /&gt;
&lt;br /&gt;
I don't see why the mnemonic for the order of the planets would be relevant to this comic. Should it be removed? [[User:Rexon Mobile|Rexon Mobile]] ([[User talk:Rexon Mobile|talk]]) 17:40, 5 December 2023 (UTC)&lt;br /&gt;
: Absolutely. No relevance to the comic. removed &amp;lt;span style=&amp;quot;font-family: 'Comic Sans MS'&amp;quot;&amp;gt;[[User:SomeoneIGuess|someone, i guess]]&amp;lt;sup&amp;gt;([[User talk:SomeoneIGuess|talk i guess]]&amp;amp;#124;[[Special:Contributions/SomeoneIGuess|le edit list]])&amp;lt;/sup&amp;gt;&amp;lt;/span&amp;gt;  18:18, 5 December 2023 (UTC)&lt;br /&gt;
:: I put it in because it was another mnemonic about the solar system. [*shrug*] [[User:BunsenH|BunsenH]] ([[User talk:BunsenH|talk]]) 19:59, 5 December 2023 (UTC)&lt;br /&gt;
: what?! it should at least be mentioned. this comic wouldn't exist in a world without well-known solar system mnemonics :D&lt;br /&gt;
: [[User:Lordpipe|Lordpipe]] ([[User talk:Lordpipe|talk]]) 10:35, 6 December 2023 (UTC)&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
The mnemonic scans as &amp;quot;Supercalifragilisticexpialidocious&amp;quot;, with the one hiccup that the emph'''a'''sis lands on the second syl'''la'''ble of mea'''sure'''.  --[[User:NotaBene|NotaBene]] ([[User talk:NotaBene|talk]]) 22:46, 6 December 2023 (UTC)&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
== what if? news! ==&lt;br /&gt;
&lt;br /&gt;
I can't find it anywhere here, but there is now an official what if youtube channel with (currently) two videos uploaded! Also, I think the most recent one *isn't* a duplicate of one already covered in other what if? media! (yeah i know this isnt related to the comic but this is where people will see it)[[Special:Contributions/162.158.175.61|162.158.175.61]] 23:38, 5 December 2023 (UTC)Bumpf&lt;br /&gt;
:No, it's been covered somewhere in one of Randall's books. But for anyone who's wondering, here's the link. https://www.youtube.com/@xkcd_whatif&lt;br /&gt;
:: If it's been covered already, i find it strange that its first upload was November 30, 2023... &amp;lt;span style=&amp;quot;font-family: 'Comic Sans MS'&amp;quot;&amp;gt;[[User:SomeoneIGuess|someone, i guess]]&amp;lt;sup&amp;gt;([[User talk:SomeoneIGuess|talk i guess]]&amp;amp;#124;[[Special:Contributions/SomeoneIGuess|le edit list]])&amp;lt;/sup&amp;gt;&amp;lt;/span&amp;gt;  00:19, 6 December 2023 (UTC)  &lt;br /&gt;
::: A quick reading of the video's comment indicate that it is taken from the first book, so &amp;quot;the most recent one *isn't* a duplicate of one already covered in other what if? media!&amp;quot; is incorrect, no matter when the free access was added on Youtube. [[Special:Contributions/162.158.233.107|162.158.233.107]] 08:35, 6 December 2023 (UTC)&lt;/div&gt;</summary>
		<author><name>NotaBene</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=Talk:2863:_Space_Typography&amp;diff=330300</id>
		<title>Talk:2863: Space Typography</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=Talk:2863:_Space_Typography&amp;diff=330300"/>
				<updated>2023-12-06T22:45:54Z</updated>
		
		<summary type="html">&lt;p&gt;NotaBene: &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;
&lt;br /&gt;
Are the dot's actually roughly in line with the distances?&lt;br /&gt;
&lt;br /&gt;
[[Special:Contributions/172.71.135.78|172.71.135.78]] 21:31, 4 December 2023 (UTC)&lt;br /&gt;
&lt;br /&gt;
Yes they are. I eyeballed with a screenruler and calculated  &lt;br /&gt;
&lt;br /&gt;
* 0.40 AU for Mercury  (Should be 0.37)&lt;br /&gt;
* 0.72 AU for Venus    (0.72)&lt;br /&gt;
* 1 AU for earth (reference)&lt;br /&gt;
* 1.54 AU for Mars (1.52)&lt;br /&gt;
* 5.24 AU for Jupiter (4.98)&lt;br /&gt;
&lt;br /&gt;
[[Special:Contributions/162.158.202.94|162.158.202.94]] 21:48, 4 December 2023 (UTC)&lt;br /&gt;
&lt;br /&gt;
But what size font?[[User:Danger Kitty|Danger Kitty]] ([[User talk:Danger Kitty|talk]])&lt;br /&gt;
:129 trillion pt, give or take. [[Special:Contributions/141.101.105.109|141.101.105.109]] 23:02, 4 December 2023 (UTC)&lt;br /&gt;
:: Thanks for the decimal-point check. This is my worksheet: [https://i.postimg.cc/tRsmk3c6/Oprimistic-AU.gif Image] (open in new tab) [[User:PRR|PRR]] ([[User talk:PRR|talk]]) 02:13, 5 December 2023 (UTC) &lt;br /&gt;
&lt;br /&gt;
The number of &amp;quot;e&amp;quot;s between h and r required to make Saturn line up is about 59 (tested using 27.2 pt font) [[User:Digin|Digin]] ([[User talk:Digin|talk]]) 22:17, 4 December 2023 (UTC)&lt;br /&gt;
: There are currently three different figures in the explanation for how many &amp;quot;e&amp;quot;s are needed. One says the title text is correct as written, brackets and ellipsis and all. One says 59. One says 85. They can't all be right.  [[User:LtPowers|LtPowers]] ([[User talk:LtPowers|talk]]) 13:22, 5 December 2023 (UTC)&lt;br /&gt;
:: &amp;quot;They can't all be right.&amp;quot; Well, they can, if they don't correspond to the same thing. Are we using the font size from the comic, or from the hover text? [[User:Rexon Mobile|Rexon Mobile]] ([[User talk:Rexon Mobile|talk]]) 15:39, 5 December 2023 (UTC)&lt;br /&gt;
&lt;br /&gt;
:: I think the [...] has to be condensing what should be a longer title text.  If is was &amp;quot;correct as written&amp;quot;, that's an extra 3 dots that don't correspond to planets or anything in that region of space.  So unless someone can find some objects in that part of space, I think &amp;quot;correct as written&amp;quot; should be vetoed.  Also, can't use periods, colons, or semicolons -- would need to separate the main sentence from the title text addition using perhaps a dash or a comma (as long as a comma isn't as comet). [[User:N0lqu|-boB]] ([[User talk:N0lqu|talk]]) 17:22, 5 December 2023 (UTC)&lt;br /&gt;
::: The sentence is using only the dots that are part of 'i's.  Although the comic's text refers to &amp;quot;dots&amp;quot; without specifying that restriction, we don't have to assume that 'j's and punctuation must also correspond to solar system bodies. [[User:BunsenH|BunsenH]] ([[User talk:BunsenH|talk]]) 20:06, 5 December 2023 (UTC)&lt;br /&gt;
:::: Who says only the dots over the i's are to be considered?  The comic certainly doesn't specify that... it just says &amp;quot;use the dots as a map&amp;quot;. Someone early on in the explanation made the ''assumption'' that only the dots on letters (i and j) could, but I don't believe that's a valid assumption. The fact that Randall doesn't end the sentence with a dot implies he knows that dot would count, so he didn't include it, though admittedly he did include a period on the title text. [[User:N0lqu|-boB]] ([[User talk:N0lqu|talk]]) 16:48, 6 December 2023 (UTC)&lt;br /&gt;
&lt;br /&gt;
I’m curious whether randall brute forced this, trained a neural network, or did it by hand. [[Special:Contributions/172.70.175.179|172.70.175.179]] 22:31, 4 December 2023 (UTC)&lt;br /&gt;
:He would probably answer: [[2173: Trained a Neural Net]] [[Special:Contributions/172.70.42.217|172.70.42.217]] 22:45, 4 December 2023 (UTC)&lt;br /&gt;
&lt;br /&gt;
Trying to prep an image of a comparison between actual orbits and the comic, but it's taking longer than i'd like &amp;lt;span style=&amp;quot;font-family: 'Comic Sans MS'&amp;quot;&amp;gt;[[User:SomeoneIGuess|someone, i guess]]&amp;lt;sup&amp;gt;([[User talk:SomeoneIGuess|talk i guess]]&amp;amp;#124;[[Special:Contributions/SomeoneIGuess|le edit list]])&amp;lt;/sup&amp;gt;&amp;lt;/span&amp;gt;  23:20, 4 December 2023 (UTC)&lt;br /&gt;
&lt;br /&gt;
I assume brackets around (i) are for the Saturn's rings? [[Special:Contributions/162.158.102.71|162.158.102.71]] 23:26, 4 December 2023 (UTC)&lt;br /&gt;
:Ooh, good call. Put that in.  [[User:LtPowers|LtPowers]] ([[User talk:LtPowers|talk]]) 13:22, 5 December 2023 (UTC)&lt;br /&gt;
:I assumed it was just a way to emphasize the i. In the comic, they are bolded, but that is not possible in title text. - [[Special:Contributions/172.68.27.133|172.68.27.133]] 22:28, 5 December 2023 (UTC)&lt;br /&gt;
&lt;br /&gt;
The long, rambling diatribe about literature seemed odd at first, but I think Charlotte Brontë would be proud she was able to represent Pluto and Charon. [[Special:Contributions/172.69.247.56|172.69.247.56]] 04:07, 5 December 2023 (UTC)&lt;br /&gt;
:I don't understand. What's this about Charlotte Brontë? I don't see any reference to her in this comic.[[Special:Contributions/162.158.155.112|162.158.155.112]] 20:17, 5 December 2023 (UTC)&lt;br /&gt;
:: It's a joke about umlauts. [[Special:Contributions/172.69.247.48|172.69.247.48]] 06:37, 6 December 2023 (UTC)&lt;br /&gt;
&lt;br /&gt;
For what it's worth, the asteroid belt spans the area covered by the word &amp;quot;measure&amp;quot; [[Special:Contributions/172.71.222.152|172.71.222.152]] 14:10, 5 December 2023 (UTC)&lt;br /&gt;
:It would be nice if the word gaps were aligned that way, but there is no obvious alignment with either the edges of the asteroid belt, or the location of the Kirkwood gaps. The asteroid belt would stretch from the middle of the M in &amp;quot;measure&amp;quot; to the P in &amp;quot;space&amp;quot;, with the most prominent Kirkwood gaps corresponding roughly to the letters A, R and E. [[User:Rexon Mobile|Rexon Mobile]] ([[User talk:Rexon Mobile|talk]]) 15:33, 5 December 2023 (UTC)&lt;br /&gt;
:If he really wanted to represent the asteroids, I think he might have found a way to include a word like &amp;quot;riiii[...]iiight&amp;quot; so there would be lots of dots. [[User:Barmar|Barmar]] ([[User talk:Barmar|talk]]) 15:51, 5 December 2023 (UTC)&lt;br /&gt;
::So '''a'''steroids are mostly between the As in &amp;quot;measure&amp;quot; and &amp;quot;space&amp;quot;. Neat. --[[Special:Contributions/172.71.114.63|172.71.114.63]] 19:18, 6 December 2023 (UTC)&lt;br /&gt;
&lt;br /&gt;
I added the table with the count of 'e's and adjusted the wording where it said 85 'e's from the Sun to say an extra 13 'e's in the word &amp;quot;here&amp;quot;. I worked this out using an image from Wikipedia (https://en.wikipedia.org/wiki/Solar_System#/media/File:Solar_System_distance_to_scale.svg) in PowerPoint but don't have upload privileges to post. Would be nice if someone could do that. [[User:Denver87|Denver87]] ([[User talk:Denver87|talk]]) 15:30, 5 December 2023 (UTC)&lt;br /&gt;
&lt;br /&gt;
Amazingly (assuming my math was right so please someone check) the sun to scale would be very close to the size of the actual dots used to represents the planets. (Planets wouldn't be visible.)&lt;br /&gt;
&lt;br /&gt;
I don't see why the mnemonic for the order of the planets would be relevant to this comic. Should it be removed? [[User:Rexon Mobile|Rexon Mobile]] ([[User talk:Rexon Mobile|talk]]) 17:40, 5 December 2023 (UTC)&lt;br /&gt;
: Absolutely. No relevance to the comic. removed &amp;lt;span style=&amp;quot;font-family: 'Comic Sans MS'&amp;quot;&amp;gt;[[User:SomeoneIGuess|someone, i guess]]&amp;lt;sup&amp;gt;([[User talk:SomeoneIGuess|talk i guess]]&amp;amp;#124;[[Special:Contributions/SomeoneIGuess|le edit list]])&amp;lt;/sup&amp;gt;&amp;lt;/span&amp;gt;  18:18, 5 December 2023 (UTC)&lt;br /&gt;
:: I put it in because it was another mnemonic about the solar system. [*shrug*] [[User:BunsenH|BunsenH]] ([[User talk:BunsenH|talk]]) 19:59, 5 December 2023 (UTC)&lt;br /&gt;
: what?! it should at least be mentioned. this comic wouldn't exist in a world without well-known solar system mnemonics :D&lt;br /&gt;
: [[User:Lordpipe|Lordpipe]] ([[User talk:Lordpipe|talk]]) 10:35, 6 December 2023 (UTC)&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
The mnemonic scans as &amp;quot;Supercalifragilisticexpialidocious&amp;quot;, with the one hiccup that the emph'''a'''sis lands on the second syl''la'''ble of mea'''sure'''.&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
== what if? news! ==&lt;br /&gt;
&lt;br /&gt;
I can't find it anywhere here, but there is now an official what if youtube channel with (currently) two videos uploaded! Also, I think the most recent one *isn't* a duplicate of one already covered in other what if? media! (yeah i know this isnt related to the comic but this is where people will see it)[[Special:Contributions/162.158.175.61|162.158.175.61]] 23:38, 5 December 2023 (UTC)Bumpf&lt;br /&gt;
:No, it's been covered somewhere in one of Randall's books. But for anyone who's wondering, here's the link. https://www.youtube.com/@xkcd_whatif&lt;br /&gt;
:: If it's been covered already, i find it strange that its first upload was November 30, 2023... &amp;lt;span style=&amp;quot;font-family: 'Comic Sans MS'&amp;quot;&amp;gt;[[User:SomeoneIGuess|someone, i guess]]&amp;lt;sup&amp;gt;([[User talk:SomeoneIGuess|talk i guess]]&amp;amp;#124;[[Special:Contributions/SomeoneIGuess|le edit list]])&amp;lt;/sup&amp;gt;&amp;lt;/span&amp;gt;  00:19, 6 December 2023 (UTC)  &lt;br /&gt;
::: A quick reading of the video's comment indicate that it is taken from the first book, so &amp;quot;the most recent one *isn't* a duplicate of one already covered in other what if? media!&amp;quot; is incorrect, no matter when the free access was added on Youtube. [[Special:Contributions/162.158.233.107|162.158.233.107]] 08:35, 6 December 2023 (UTC)&lt;/div&gt;</summary>
		<author><name>NotaBene</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2863:_Space_Typography&amp;diff=330156</id>
		<title>2863: Space Typography</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2863:_Space_Typography&amp;diff=330156"/>
				<updated>2023-12-04T22:09:57Z</updated>
		
		<summary type="html">&lt;p&gt;NotaBene: /* Explanation */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 2863&lt;br /&gt;
| date      = December 4, 2023&lt;br /&gt;
| title     = Space Typography&lt;br /&gt;
| image     = space_typography_2x.png&lt;br /&gt;
| imagesize = 740x239px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = And over heeee[...]eeeere (i)s Saturn.&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
{{incomplete|Created by an OPTIMISTIC ALIEN OVER THEEEE[...]EEEERE IN... NEPTUNE - Please change this comment when editing this page. Do NOT delete this tag too soon.}}&lt;br /&gt;
Randall has created a sentence with the property that, when printed in {{w|Times New Roman}} font, the distances of the &amp;quot;i&amp;quot; letters from the first letter are proportional to the radii of the orbits of the innermost 5 planets in the {{w|Solar System}}. These are the only letters in the sentence that have a dot over the letter (there are no &amp;quot;j&amp;quot;s in the sentence). He suggests that if you get lost traveling among these planets, you can use the dots as a map.&lt;br /&gt;
&lt;br /&gt;
This won't actually be a very useful map. When traveling between planets, it's not enough to know where the planet's orbit is, you also need to know where it is along the orbit.&lt;br /&gt;
&lt;br /&gt;
The sentence is self-referential, since it talks about using typography to measure distances in space, and this makes it a useful mnemonic. The &amp;quot;optimistic&amp;quot; in the sentence could indicate that the aliens in question are highly optimistic that this kind of &amp;quot;map&amp;quot; would be useful for navigating a star system where planets orbit in ellipses, rather than being in static positions along a line (as is so often depicted in line-ups of the Solar System's planets).&lt;br /&gt;
&lt;br /&gt;
The title text appends the sentence with a section for identifying Saturn. After an indeterminately long &amp;quot;Heeeeeere,&amp;quot; Saturn is indicated, in the form of the dot in the i in &amp;quot;is.&amp;quot;  The same construct could be used to continue out to any planet or other body which does not contain the letter 'i' -- which is all of the remaining planets and minor planets, with the exception of Eris.  However, the strings of 'e's would get longer and longer, to the point that it might be necessary to write down how many of them are to be used for each...which might as well just be replaced with a table of orbital ephemerides.&lt;br /&gt;
&lt;br /&gt;
==Accuracy==&lt;br /&gt;
&lt;br /&gt;
Measuring the distances based on the provided image results in these approximate distances:&lt;br /&gt;
&lt;br /&gt;
{| class=&amp;quot;wikitable&amp;quot; style=&amp;quot;margin:auto&amp;quot;&lt;br /&gt;
|-&lt;br /&gt;
! Planet !! Relative Distance in Comic !! Actual Distance in AU&amp;lt;ref&amp;gt;https://www.jpl.nasa.gov/edu/pdfs/scaless_reference.pdf&amp;lt;/ref&amp;gt;&lt;br /&gt;
|-&lt;br /&gt;
| Mercury || 0.39 || 0.39&lt;br /&gt;
|-&lt;br /&gt;
| Venus || 0.71 || 0.72&lt;br /&gt;
|-&lt;br /&gt;
| Earth || 1 || 1&lt;br /&gt;
|-&lt;br /&gt;
| Mars || 1.52 || 1.52&lt;br /&gt;
|-&lt;br /&gt;
| Jupiter || 5.18 || 5.2&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
The picture also contains a standard-representation of Times New Roman, with no changes to kerning or tracking.&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
{{incomplete transcript|Do NOT delete this tag too soon.}}&lt;br /&gt;
:[A grayed-out sentence reads &amp;quot;Optimistic aliens measure space typographically&amp;quot;. The &amp;quot;O&amp;quot; in &amp;quot;Optimistic&amp;quot; is dark black and indicated as representing the Sun (not to scale). The dots of the letters &amp;quot;i&amp;quot; in the sentence are similarly dark black. The dot in the first &amp;quot;i&amp;quot; in &amp;quot;Optimistic&amp;quot; is indicated as representing Mercury; the dot in the second &amp;quot;i&amp;quot; represents Venus; the dot in the third &amp;quot;i&amp;quot; represents Earth. The dot in the &amp;quot;i&amp;quot; in &amp;quot;aliens&amp;quot; is indicated as representing Mars. The dot in the &amp;quot;i&amp;quot; in &amp;quot;typographically&amp;quot; is indicated as representing Jupiter. A measurement bar indicates that the distance between the &amp;quot;O&amp;quot; and the third &amp;quot;i&amp;quot; in &amp;quot;Optimistic&amp;quot; is equivalent to 1 AU (astronomical unit).]&lt;br /&gt;
&lt;br /&gt;
:[Caption below the panel:] &lt;br /&gt;
:Space tip: if you're ever lost in the inner Solar System, you can just type out the phrase &amp;quot;Optimistic aliens measure space typographically&amp;quot; in Times New Roman and use the dots as a map.&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
&lt;br /&gt;
[[Category:Space]]&lt;br /&gt;
[[Category:Tips]]&lt;/div&gt;</summary>
		<author><name>NotaBene</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2860:_Decay_Modes&amp;diff=329721</id>
		<title>2860: Decay Modes</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2860:_Decay_Modes&amp;diff=329721"/>
				<updated>2023-11-28T04:14:29Z</updated>
		
		<summary type="html">&lt;p&gt;NotaBene: /* Explanation */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 2860&lt;br /&gt;
| date      = November 27, 2023&lt;br /&gt;
| title     = Decay Modes&lt;br /&gt;
| image     = decay_modes_2x.png&lt;br /&gt;
| imagesize = 586x360px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = Unlike an Iron Age collapse, a Bronze Age collapse releases energy, since copper and tin are past the iron peak on the curve of binding energy.&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
{{incomplete|Created by an EXTANT MODE OF DECAY - Please change this comment when editing this page. Do NOT delete this tag too soon.}}&lt;br /&gt;
Decay modes refer to the different ways in which unstable atomic nuclei transform into more stable ones, typically by emitting particles or radiation. The process of decay is a natural phenomenon that occurs in radioactive substances. There are several types of decay modes, each characterized by the particles emitted or the energy released during the process.&lt;br /&gt;
In the comic's diagram, protons are white and neutrons are gray.&lt;br /&gt;
&lt;br /&gt;
The first six modes are real, and most occur relatively frequently:&lt;br /&gt;
&lt;br /&gt;
In '''alpha decay''', an unstable nucleus emits an alpha particle, composed of two protons and two neutrons. Alpha decay is the primary source of helium on earth, as alpha particles are helium-4 nuclei.&lt;br /&gt;
&lt;br /&gt;
In '''beta decay''' (more properly beta-minus decay), a neutron-rich nucleus emits a W⁻ boson, converting one neutron into a proton — as shown in the diagram — which in turn decays into an electron (the titular beta (minus) particle) and an electron antineutrino. The diagram shows only the beta particle, which was the only thing expelled from the nucleus that could be observed directly when the types of nuclear decay were first described and enumerated.&lt;br /&gt;
&lt;br /&gt;
In '''gamma decay''', an unstable nucleus (represented by the lumpy, prolate nucleus in the diagram -- standing for a high-energy {{w|nuclear isomer}}) emits a high-energy photon known as a gamma-ray and settles into a stabler, lower-energy state. &lt;br /&gt;
&lt;br /&gt;
In '''electron capture''', a proton-rich atom slurps an electron from the K or L electron shell. This converts a proton into a neutron and emits an electron neutrino. No 'slurp' sound is actually produced in real electron capture event.{{citation needed}}&lt;br /&gt;
&lt;br /&gt;
In '''positron emission''', or beta plus decay, a proton-rich nucleus emits a W+ boson, converting one proton into a neutron, which in turn decays into a positron, the beta plus particle, and an electron neutrino. Again, the diagram shows only the beta particle, presumably for simplicity. This is much rarer than beta minus decay.&lt;br /&gt;
&lt;br /&gt;
In '''neutron emission''', a neutron-rich/proton-deficient unstable nucleus emits a neutron (which then goes on to decay into further daughter particles).&lt;br /&gt;
&lt;br /&gt;
The other six modes are fictional:&lt;br /&gt;
&lt;br /&gt;
'''Baryon panic''': In this mode, all the subatomic particles flee the atom simultaneously, similar to a crowd fleeing a building during a fire alarm, or other similar states of panic in people. In reality, this mode of decay would require an incredible amount of energy.  The like charges of protons do repel each other, but they are held together more tightly by the residual {{w|nuclear force}} in the presence of neutrons.&lt;br /&gt;
&lt;br /&gt;
'''Omega decay''': The atom has decayed and left behind a skull in its wake, leaving cracks in the area surrounding it and send neutrons and protons flying everywhere. Whereas ''alpha'', ''beta'', ''gamma'' are the first three letters of the Greek alphabet, ''omega'' is the last, so the name ''omega'' might suggest the ultimate, final decay. The skull presumably represents the finality of such a decay, given that the end stage of human decay leaves behind a skeleton, something that does not exist in nucleons.{{citation needed}}  Many works of science fiction propose forms of radiation and/or particles with further letters in the Greek alphabet, such as {{w|The Omega Directive}} in Star Trek.  In real life, the {{w|omega baryon}} was predicted to exist by Murray Gell-Mann's early quark theory, and then discovered several years later with the properties he had predicted.&lt;br /&gt;
&lt;br /&gt;
'''Electron wilt''': The electrons surrounding the atom fall to the ground. Some plants are subject to diseases that cause this kind of wilting of their leaves.  Electrons will attempt to settle into a 'ground state' but this does not involve them literally slumping to the ground, rather they will be as close as possible to the nucleus subject to the limitations of energy levels and the Pauli exclusion principle.&lt;br /&gt;
&lt;br /&gt;
'''One big nucleon''': The protons and neutrons combine to form a single huge baryon. {{w|Exotic baryon|Exotic baryons}} with more than the usual three quarks, such as {{w|pentaquarks}}, have been created in the lab but are not known to exist in nature.  String theorists propose that black holes are actually {{w|Fuzzball (string theory)|fuzzballs}}, single &amp;quot;subatomic&amp;quot; particles which are macroscopic in size (namely that of their event horizon) formed by the fusion of the strings of in-falling matter under extreme gravitational conditions.&lt;br /&gt;
&lt;br /&gt;
'''Fungal decay''': The nucleus rots, and fungal fruiting bodies (toadstools and mushrooms) grow around it. This plays on the meaning of &amp;quot;decay&amp;quot;.&lt;br /&gt;
&lt;br /&gt;
'''Collapse due to invasion by the Sea Peoples''': The atom floats in water, with boats on either side full of Cueballs shooting arrows at it, and the atom is breaking up. The {{w|Sea Peoples}} are a somewhat mysterious group that attacked Egypt in the late Bronze Age (1200-900 BCE) and are associated with a widespread societal collapse around the central and eastern Mediterranean.&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
{{incomplete transcript|Do NOT delete this tag too soon.}}&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
[[Category:Chemistry]]&lt;/div&gt;</summary>
		<author><name>NotaBene</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2845:_Extinction_Mechanisms&amp;diff=327016</id>
		<title>2845: Extinction Mechanisms</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2845:_Extinction_Mechanisms&amp;diff=327016"/>
				<updated>2023-10-24T17:03:09Z</updated>
		
		<summary type="html">&lt;p&gt;NotaBene: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 2845&lt;br /&gt;
| date      = October 23, 2023&lt;br /&gt;
| title     = Extinction Mechanisms&lt;br /&gt;
| image     = extinction_mechanisms_2x.png&lt;br /&gt;
| imagesize = 307x438px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = The Late Heavy Bombardment was followed a few billion years later by the Comparatively Light but Oddly Specific Bombardment.&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
{{incomplete|Created by an EXTREMELY WELL-AIMED SPACE ROCK - Please change this comment when editing this page. Do NOT delete this tag too soon.}}&lt;br /&gt;
&lt;br /&gt;
Around 66 million years ago there was a {{w|Cretaceous–Paleogene extinction event|mass extinction event}} responsible for the extinction of all non-avian dinosaurs. This is why there are no more dinosaurs (except for birds! [https://www.explainxkcd.com/wiki/index.php/1211:_Birds_and_Dinosaurs]) There have been a number of explanations for this, but most currently accepted explanations center on the {{w|Chicxulub crater|Chicxulub impact}}, in which a large asteroid (the comic suggests it was a comet) hit the Earth. The exact mechanism for the extinction caused by this event, however, is not clear. The comic suggests three possibilities: {{w|impact winter}} caused by dust released from the impact, {{w|firestorms}} along with {{w|ocean acidification}} from acids generated by the impact, and the enhanced eruption of volcano(es) in the {{w|Deccan Traps}} region in India. Here all three possibilities have been crossed out and a fourth one, &amp;quot;the rocks hit the dinosaurs,&amp;quot; is circled as the correct answer.&lt;br /&gt;
&lt;br /&gt;
The argument is that the comet had a volume of 500 km&amp;lt;sup&amp;gt;3&amp;lt;/sup&amp;gt; (10 km diameter), or 5×10&amp;lt;sup&amp;gt;14&amp;lt;/sup&amp;gt; L. Earth has a surface area of around 500 million km&amp;lt;sup&amp;gt;2&amp;lt;/sup&amp;gt;, or 5×10&amp;lt;sup&amp;gt;14&amp;lt;/sup&amp;gt; m&amp;lt;sup&amp;gt;2&amp;lt;/sup&amp;gt;. The idea is that the comet broke up into liter-sized rocks that were somehow evenly distributed over the Earth's surface, one per square meter, hitting each of the dinosaurs. It is unclear how such a breakup or scattering might have occurred -- a body that passes within Earth's {{w|Roche limit}} will break up into a ring, but this limit is generally a single-digit multiple of the planet's radius, so an object on an inbound collision course would only experience high tidal forces for a matter of minutes before impact.&lt;br /&gt;
&lt;br /&gt;
The title text refers to a hypothetical event early in Earth's history, ironically known as the Late Heavy Bombardment, in which a number of asteroids struck the Earth and other terrestrial planets around 4 billion years ago. The mass extinction event of 66 million years ago is then referred to as the &amp;quot;Comparatively Light but Oddly Specific Bombardment&amp;quot;, presumably because it isn't as heavy as the LHB, but oddly specific in its targets.&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
{{incomplete transcript|Do NOT delete this tag too soon.}}&lt;br /&gt;
:[A drawing of the Chicxulub meteor]&lt;br /&gt;
:Marking to the right: ≈ 500 km&amp;lt;sup&amp;gt;3&amp;lt;/sup&amp;gt; (5 × 10&amp;lt;sup&amp;gt;14&amp;lt;/sup&amp;gt; L)&lt;br /&gt;
:[Five arrows show individual small rocks coming from the meteor and spreading across the Earth. A sixth arrow provides more elaboration.]&lt;br /&gt;
:Marking of the separate rock: 1 liter rocks&lt;br /&gt;
:[The rock is shown entering a square marked &amp;quot;1 m&amp;lt;sup&amp;gt;2&amp;lt;/sup&amp;gt;&amp;quot;, which has another arrow to a larger grid of squares, before an arrow back to the Earth.]&lt;br /&gt;
:Marking near example square meter: &amp;gt;1 rock per m&amp;lt;sup&amp;gt;2&amp;lt;/sup&amp;gt;&lt;br /&gt;
&lt;br /&gt;
:[Four dinosaurs are drawn, including a theropod, what may be a velociraptor, a sauropod, and a triceratops. Each has a small rock falling directly toward it.]&lt;br /&gt;
&lt;br /&gt;
:[List header, underlined:] Comet Extinction Mechanism Ideas&lt;br /&gt;
:[The first three list items are crossed out]&lt;br /&gt;
:Dust caused impact winter&lt;br /&gt;
:Firestorms and ocean acidification&lt;br /&gt;
:Triggered Deccan Traps magma&lt;br /&gt;
:[The fourth suggestion is circled rather than struck through:]&lt;br /&gt;
:The rocks hit the dinosaurs&lt;br /&gt;
&lt;br /&gt;
:[Caption below the panel:]&lt;br /&gt;
:Paleontologists are missing the obvious answer.&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
[[Category:Dinosaurs]]&lt;/div&gt;</summary>
		<author><name>NotaBene</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2831:_xkcd_Phone_Flip&amp;diff=324046</id>
		<title>2831: xkcd Phone Flip</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2831:_xkcd_Phone_Flip&amp;diff=324046"/>
				<updated>2023-09-20T22:34:01Z</updated>
		
		<summary type="html">&lt;p&gt;NotaBene: /* Explanation */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 2831&lt;br /&gt;
| date      = September 20, 2023&lt;br /&gt;
| title     = xkcd Phone Flip&lt;br /&gt;
| image     = xkcd_phone_flip_2x.png&lt;br /&gt;
| imagesize = 740x458px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = Theranos partnership: Sorry, we know, but we signed the contract back before all the stuff and the lawyers say we can't back out, so just try to keep your finger away from the bottom of the phone.&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
{{incomplete|Created by THE BOT FORTOLD BY THE FORTUNETELLER PROPHECY  - Please change this comment when editing this page. Do NOT delete this tag too soon.}}&lt;br /&gt;
This is the 9th in the ongoing [[:Category:xkcd Phones|xkcd Phone]] series in which Randall explains his new joke phone designs with many strange and useless features. It is a reference to the somewhat recent {{w|Galaxy Z}} series, but emulating the typical {{w|paper fortune teller}}. &amp;lt;!-- And there's much more to be said about this, I'm sure... --&amp;gt;&lt;br /&gt;
&lt;br /&gt;
The title text references the company that notably failed to live up to its promise to diagnose many health issues from a single drop of blood. Whether this phone does any better, or not, it ''will'' still take that drop of blood unless you're particularly careful.&lt;br /&gt;
From the top, going clockwise:&lt;br /&gt;
&lt;br /&gt;
;Exfoliating Screen&lt;br /&gt;
&lt;br /&gt;
: A term commonly found on lotions and facial products, &amp;quot;exfoliating&amp;quot; means to unclog and open pores. This could mean that it will exfoliate pores when pressed to the skin.  However, this would probably require a mildly abrasive and/or adhesive screen texture or coating, which are usually not desirable qualities of a touchscreen.&lt;br /&gt;
&lt;br /&gt;
; Buy one get one&lt;br /&gt;
&lt;br /&gt;
: A play on the phrase &amp;quot;Buy one get one free&amp;quot;&lt;br /&gt;
&lt;br /&gt;
; Up to 50% more&lt;br /&gt;
&lt;br /&gt;
: A play on the words &amp;quot;Up to 50% more &amp;lt;blank&amp;gt;. Although considering that there is nothing in the blank, this statement is useless. See [[870: Advertising]].&lt;br /&gt;
; Bending phone activates chemical flashlight&lt;br /&gt;
&lt;br /&gt;
; SPF 15 Coating protects your face from websites&lt;br /&gt;
&lt;br /&gt;
: Unclear how sunscreen on the phone protects you from website.&lt;br /&gt;
&lt;br /&gt;
; Iatrogenic construction&lt;br /&gt;
&lt;br /&gt;
: 'Iatrogenic' means 'physician caused', and usually refers to illnesses which are caused or worsened by medical malpractice. This may imply that the phone was made ''by'' doctors.&lt;br /&gt;
&lt;br /&gt;
;Break Glass to Access Apps&lt;br /&gt;
A play on how fire alarms are protected in most places, although in this case it is not that helpful. Unusual things behind glass is also mentioned in 1634: In Case of Emergency.&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
{{incomplete transcript|Do NOT delete this tag too soon.}}&lt;br /&gt;
:Exfoliating screen&lt;br /&gt;
:Orthotic shape for arch support&lt;br /&gt;
:Single big pixel&lt;br /&gt;
:Ready to eat&lt;br /&gt;
:Hypoimmunogenic&lt;br /&gt;
:Up to 50% more&lt;br /&gt;
:Full-spectrum backlight optimized for plant growth&lt;br /&gt;
:Long-lasting main sequence battery&lt;br /&gt;
:Break glass to access apps&lt;br /&gt;
&lt;br /&gt;
:Buy one get one&lt;br /&gt;
:Bending phone activates chemical flashlight&lt;br /&gt;
:SPF 15 coating protects your face from websites&lt;br /&gt;
:Iatrogenic construction&lt;br /&gt;
:All-vinyl data storage for maximum fidelity&lt;br /&gt;
:Locks in moisture&lt;br /&gt;
:National Weather Service partnership: phone is afraid of thunder&lt;br /&gt;
:One-click ''ruina montium''&lt;br /&gt;
:Free refills&lt;br /&gt;
&lt;br /&gt;
:Introducing&lt;br /&gt;
:'''The xkcd Phone Flip'''&lt;br /&gt;
:''We actually didn't mean for it to do this''™&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
[[Category:xkcd Phones]]&lt;br /&gt;
[[Category:Comics sharing name|xkcd Phones]]&lt;/div&gt;</summary>
		<author><name>NotaBene</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=808:_The_Economic_Argument&amp;diff=323616</id>
		<title>808: The Economic Argument</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=808:_The_Economic_Argument&amp;diff=323616"/>
				<updated>2023-09-10T22:28:01Z</updated>
		
		<summary type="html">&lt;p&gt;NotaBene: /* Explanation */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 808&lt;br /&gt;
| date      = October 20, 2010&lt;br /&gt;
| title     = The Economic Argument&lt;br /&gt;
| image     = the economic argument.png&lt;br /&gt;
| titletext = Not to be confused with 'making money selling this stuff to OTHER people who think it works', which corporate accountants and actuaries have zero problems with.&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
The image shows fields of human life that would be greatly improved and/or allow certain people to make a lot of money if some crazy phenomena (mostly {{w|paranormal}}) actually worked in reality or were testable and usable concepts. Crazy phenomena, in this case, means counter-intuitive things that go against common sense and which science often contradicts (though relativity and QM are a major part of physics, they are still counterintuitive and could be considered to sound crazy). As the comic tries to prove, if there were commercial use for it and proofs of it working, there will be high investment made in the technology to use and harness such concepts.&lt;br /&gt;
&lt;br /&gt;
So far only {{w|Theory of relativity|relativity}} and {{w|quantum electrodynamics}} have major evidence backing them. Specifically, the theory of relativity is heavily embedded into how your {{w|Global Positioning System|Global Positioning System (GPS)}} device synchronizes with satellites a hundred miles in the air and calculates your current position. The design of modern circuit-boards and other electronic devices is influenced by quantum electrodynamics — smartphones or high capacity hard drives wouldn't be possible without this theory.&lt;br /&gt;
&lt;br /&gt;
The non-scientific/disproved concepts trying to pass as real and scientific are:&lt;br /&gt;
&lt;br /&gt;
*'''{{w|Remote viewing}}:''' Alleged ability to see and know things far away with the strength of your mind, without physically being in that place or using technology (cameras, TV screens and so on).&lt;br /&gt;
*'''{{w|Dowsing}}:''' Alleged supernatural ability to sense, using two dowsing rods/sticks/pieces of metal where underground water/oil supplies or hidden valuables are.&lt;br /&gt;
**Both dowsing and remote viewing would have greatly cut costs to oil companies, because it would have made finding new oil sources easier.  The U.S. Army did seriously study remote viewing and other paranormal abilities in a series of programs collectively known as the {{w|Stargate Project}}, depicted in the 2004 book and 2009 film {{w|The Men Who Stare at Goats (film)|''The Men Who Stare at Goats''}}; however, the project was concluded in 1995 after reviews concluded that the rate of successful divination of actionable intelligence was no greater than that of random chance.&lt;br /&gt;
&lt;br /&gt;
*'''{{w|Aura (paranormal)|Auras}}:''' Non-scientific belief that every human has an invisible &amp;quot;energy field&amp;quot; that can reveal and/or affect their health and feelings.&lt;br /&gt;
*'''{{w|Homeopathy}}:''' Pseudoscientific belief that the more diluted a remedy, the more effective it is, and that the remedy should, before dilution, cause similar symptoms to the disease it is said to cure. These &amp;quot;remedies&amp;quot; are often diluted so much that, usually, not even a single molecule of the original substance will remain. It is completely untrue, and proven no more effective than a placebo, so one can instead use much cheaper non-'treated' glucose and have the same effect. It is often advertised as an &amp;quot;alternative medicine&amp;quot;.&lt;br /&gt;
*'''{{w|Prayer#Prayer_healing|Remote Prayer}}:''' Non-scientific belief. Trying to help a person with their health problems by praying/pleading to a greater supernatural force to help them get better. While we're not ones to rag on anybody's religion, we don't have scientific proof or empirical evidence of it working; if anything, intercessory prayer seems to sometimes have a ''detrimental'' effect if the person knows they are prayed for (most probably due  to causing extra stress).&lt;br /&gt;
**All three would have revolutionized healthcare if proven to work, which is very, very unlikely.  {{w|Tim Minchin}} remarked in his beat poem ''Storm'' (released the year before this comic, adapted into an animated short film the year after) that &amp;quot;alternative medicine that's been proved to work&amp;quot; is simply...&amp;quot;medicine&amp;quot;.&lt;br /&gt;
&lt;br /&gt;
*'''{{w|Astrology}}:''' Trying to predict the future by studying the motions of the planets for answers - a non-scientific and very popular belief that tries to look scientific; this was a major focus of {{w|astronomy}} until science began to disprove it in the 1600s.&lt;br /&gt;
*'''{{w|Divinatory, esoteric and occult tarot|Tarot}}:''' Trying to predict the future through dealing a {{w|Tarot deck|special deck of cards}}. &lt;br /&gt;
**Both would have revolutionized our business planning, saving lots of money and lives, if true.&lt;br /&gt;
&lt;br /&gt;
*'''{{w|Crystal healing|Crystal energy}}:''' Non-scientific belief that crystals can store {{w|Energy (esotericism)|&amp;quot;soul energy&amp;quot;}} which can be tapped into and used by human beings.&lt;br /&gt;
**If true and correct, it would have revolutionized the world's technology by replacing energy sources with crystals.&lt;br /&gt;
&lt;br /&gt;
*'''{{w|Curse|Curses and hexes}}:''' Non-scientific belief that a person can cause supernatural harm to people and things by doing certain magical rituals and mouthing magical words.&lt;br /&gt;
**If it were true, the military use of such would have proliferated rather quickly.&lt;br /&gt;
&lt;br /&gt;
The title text points out that many people still believe in non-scientific, unproven, and disproved phenomena; thus, it's possible to make a lot of money by selling those (claimed) phenomena to such people (although knowingly selling non-existent phenomena, while claiming that they work, would be fraud, and thus illegal).&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
:[A three-column table. The headings are actually standing above the table.]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
:{| class=&amp;quot;wikitable alternance&amp;quot;&lt;br /&gt;
! Crazy&amp;lt;br/&amp;gt;phenomenon&lt;br /&gt;
! If it worked, companies&amp;lt;br/&amp;gt;would be using it to&amp;lt;br/&amp;gt;make a killing in...&lt;br /&gt;
! Are&amp;lt;br/&amp;gt;they?&lt;br /&gt;
|-&lt;br /&gt;
| Remote Viewing&lt;br /&gt;
| rowspan = 2 | Oil Prospecting&lt;br /&gt;
|&lt;br /&gt;
|-&lt;br /&gt;
| Dowsing&lt;br /&gt;
|&lt;br /&gt;
|-&lt;br /&gt;
| Auras&lt;br /&gt;
| rowspan = 3 | Health Care&amp;lt;br/&amp;gt;Cost Reduction&lt;br /&gt;
|&lt;br /&gt;
|-&lt;br /&gt;
| Homeopathy&lt;br /&gt;
|&lt;br /&gt;
|-&lt;br /&gt;
| Remote Prayer&lt;br /&gt;
|&lt;br /&gt;
|-&lt;br /&gt;
| Astrology&lt;br /&gt;
| rowspan = 2 | Financial/Business&amp;lt;br/&amp;gt;Planning&lt;br /&gt;
|&lt;br /&gt;
|-&lt;br /&gt;
| Tarot&lt;br /&gt;
|&lt;br /&gt;
|-&lt;br /&gt;
| Crystal Energy&lt;br /&gt;
| Regular Energy&lt;br /&gt;
|&lt;br /&gt;
|-&lt;br /&gt;
| Curses, Hexes&lt;br /&gt;
| The Military&lt;br /&gt;
|&lt;br /&gt;
|-&lt;br /&gt;
| Relativity&lt;br /&gt;
| GPS Devices&lt;br /&gt;
| style=&amp;quot;text-align:center;&amp;quot; | ✓&lt;br /&gt;
|-&lt;br /&gt;
| Quantum&amp;lt;br/&amp;gt;Electrodynamics&lt;br /&gt;
| Semiconductor&amp;lt;br/&amp;gt;Circuit Design&lt;br /&gt;
| style=&amp;quot;text-align:center;&amp;quot; | ✓&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
:Eventually, arguing that these things work means arguing that modern capitalism isn't ''that'' ruthlessly profit-focused.&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
[[Category:Charts]]&lt;br /&gt;
[[Category:Physics]]&lt;br /&gt;
[[Category:Paranormal]]&lt;/div&gt;</summary>
		<author><name>NotaBene</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2243:_Star_Wars_Spoiler_Generator&amp;diff=323351</id>
		<title>2243: Star Wars Spoiler Generator</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2243:_Star_Wars_Spoiler_Generator&amp;diff=323351"/>
				<updated>2023-09-05T23:51:24Z</updated>
		
		<summary type="html">&lt;p&gt;NotaBene: /* Table */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 2243&lt;br /&gt;
| date      = December 18, 2019&lt;br /&gt;
| title     = Star Wars Spoiler Generator&lt;br /&gt;
| image     = star wars spoiler generator.png&lt;br /&gt;
| titletext = The heroes seem to be gaining the upper hand until Darth Juul manages to flip the switch on the car wash control panel from 'REGULAR' to 'PREMIUM.'&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
On December 20, 2019 (2 days after the publication of this comic), the final movie of the &amp;quot;Skywalker saga&amp;quot; of ''Star Wars'' films, ''{{w|Star Wars: The Rise of Skywalker}}'', was officially released to the US. It received a world premiere in Los Angeles on December 16, so there are lots of spoilers online, and also lots of people who want to avoid spoilers.  [[Randall]] has created a flowchart that generates &amp;quot;spoilers&amp;quot; to the film, but as he probably has not seen the film (or, if he has, he doesn't actually want to spoil it for us), all of the so-called spoilers are nonsensical.&lt;br /&gt;
&lt;br /&gt;
The formula for each spoiler is as follows: &amp;quot;In this Star Wars movie, our heroes return to take on the First Order and new villain '''[villain name]''' with help from their new friend '''[friend name]'''. Rey builds a new lightsaber with a '''[color]''' blade, and they head out to confront the First Order's new superweapon, the '''[superweapon name]''', a space station capable of '''[evil plan]'''. They unexpectedly join forces with their old enemy '''[character]''' and destroy the superweapon in a battle featuring '''[strange event]'''. P.S. Rey's parents are '''[character]''' and '''[character]'''&amp;quot;.&lt;br /&gt;
&lt;br /&gt;
The {{w|First Order (Star Wars)|First Order}} is the main antagonist group in the ''Star Wars'' {{w|Star Wars sequel trilogy|sequel trilogy}} series. In ''{{w|Star Wars: The Force Awakens}}'', they use a superweapon in their base, Starkiller Base, to destroy the planetary system housing the headquarters of the {{w|New Republic (Star Wars)|New Republic}}, the democratic government which was formed after the {{w|Galactic Empire (Star Wars)|Empire}}'s defeat in ''{{w|Return of the Jedi}}''. &lt;br /&gt;
&lt;br /&gt;
&amp;quot;Building a {{w|lightsaber}}&amp;quot; is one of the rites of passage for becoming a {{w|Jedi}} Knight. In the {{w|Star Wars prequel trilogy|prequel trilogy}}, new Jedi build lightsabers as an official part of the journey towards Knighthood, and in the {{w|Star Wars Trilogy|original trilogy}}, {{w|Luke Skywalker}} builds a lightsaber between ''The Empire Strikes Back'' and ''Return of the Jedi'' as part of his training with {{w|Yoda}}.  {{w|Rey (Star Wars)|Rey}} has used the lightsaber that {{w|Darth Vader|Anakin Skywalker}} made and used (which Luke also used when he was a new Jedi) for the first two movies of the sequel trilogy, and so it would be thematically appropriate for her to build her own prior to the trilogy's final entry.  Most Jedi's lightsabers are either blue or green, with a few notable exceptions (e.g. {{w|Mace Windu}}'s purple lightsaber signifies his incredible combat prowess).  Kyber crystals are aligned with the Light Side of {{w|the Force}}, so {{w|Sith}} must overpower and &amp;quot;bleed&amp;quot; their crystals before they will function for them, which causes their distinctive red color.  Having a lightsaber of a color other than blue, green, or red is often seen in the ''Star Wars'' fandom as a sign of being a &amp;quot;{{tvtropes|MarySue|Mary Sue}}&amp;quot;, which is an accusation which has been made of Rey.&amp;lt;ref&amp;gt;Though often disputed. See [https://collider.com/rey-not-mary-sue-star-wars/ this article] for more information on both viewpoints.&amp;lt;/ref&amp;gt;&lt;br /&gt;
&lt;br /&gt;
Another common plot point in ''Star Wars'' media is the construction, use, and destruction of a superweapon.  These are inspired by stories and media of World War II, in which militaries rapidly developed novel technologies and weapons (including {{w|Wunderwaffe|&amp;quot;wonder-weapons&amp;quot;}}).  Meanwhile, they launched massive operations to find, attack, and destroy critical elements of their enemies' resources and infrastructure, and constructed elaborate defenses for their own.  The attack on the {{w|Death Star}} in particular is inspired by {{w|Operation Chastise}}, the &amp;quot;bouncing bomb&amp;quot; attack on Germany's hydroelectric power plants; Operation Chastise was dramatised in the {{w|The Dam Busters (book)|1951 book}} and {{w|The Dam Busters (film)|1955 film}} ''The Dam Busters'', which was [https://www.youtube.com/watch?v=lNdb03Hw18M very thoroughly homaged] by ''A New Hope''.  The original trilogy of movies only had two Death Stars, but superweapons quickly became a staple of the {{w|Star Wars expanded to other media|Expanded Universe}} fiction, to the point that one book had {{w|Han Solo}} make fun of the Empire's tendency towards building superweapons, proposing such ridiculous names as &amp;quot;Galaxy Destructor&amp;quot; and &amp;quot;Nostril of Palpatine&amp;quot;.  Superweapons are also common in superhero stories.&lt;br /&gt;
&lt;br /&gt;
Redemption and making allies of old enemies is also a common plot point in ''Star Wars''.  Anakin Skywalker fell to the Dark Side and became Darth Vader, but eventually returned to the Light Side to protect his son, and Han Solo was initially a morally ambiguous character who was eventually convinced to join the Rebellion.&lt;br /&gt;
&lt;br /&gt;
Rey, one of the main characters in the sequel trilogy series is an orphan, who was left behind on the planet Jakku as a child. As Rey is Force-sensitive and adept at using a lightsaber, there is much speculation among Star Wars fans as to the identity of her parents. Many major characters in ''Star Wars'' have unexpected heritages of great portent, most famously Luke, who was very distressed to learn that Darth Vader did not ''kill'' his father, as Obi-Wan had told him, but ''is'' his father. In ''{{w|Star Wars: The Last Jedi}}'', villain {{w|Kylo Ren}} tells her that she is the child of &amp;quot;filthy junk traders&amp;quot;, but many fans speculate that he was lying to her.&lt;br /&gt;
&lt;br /&gt;
The title text refers to the bottom option of the [strange event in battle] section. Apparently Lord Juul (or Darth Juul) is fighting the heroes in the Sith car wash. It is unclear what &amp;quot;flipping the switch&amp;quot; from Regular to Premium would do, but it seems to be beneficial to Darth Juul. A &amp;quot;premium&amp;quot; car wash usually has more features than a regular car wash, e.g. more cleaning brushes, waxing the car, cleaning the tires, etc., so perhaps the premium mode activates additional lightsabers.&lt;br /&gt;
&lt;br /&gt;
This is the second false fact generating comic, after [[1930: Calendar Facts]].&lt;br /&gt;
&lt;br /&gt;
==Table==&lt;br /&gt;
{| class=&amp;quot;wikitable&amp;quot;&lt;br /&gt;
! Entry&lt;br /&gt;
! Explanation&lt;br /&gt;
|-&lt;br /&gt;
! colspan=&amp;quot;2&amp;quot; | New villain&lt;br /&gt;
|-&lt;br /&gt;
| Kyle Ren&lt;br /&gt;
| Kyle Ren is one letter away from {{w|Kylo Ren|''Kylo'' Ren}}, the adopted &amp;quot;Sith name&amp;quot; of Ben Solo, son of Han and Leia Solo.  Kylo is one of the antagonists of the first two movies in the sequel trilogy, and presumably will be so in the third, but there's nobody in the films named &amp;quot;Kyle&amp;quot;.  (There are a handful of ''Legends'' characters named Kyle, most famously Kyle Katarn, protagonist of the ''Star Wars: Jedi Knight'' video game series.)&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Malloc}}&lt;br /&gt;
| Malloc is a function used in the C programming language to '''alloc'''ate more '''m'''emory in the running of a program. Malloc may sound similar to {{w|Darth Malak|Malak}}, the antagonist of the ''{{w|Star Wars: Knights of the Old Republic}}'' video game. Improper use of the malloc and free functions can cause &amp;quot;memory leak&amp;quot; bugs in programs.&lt;br /&gt;
|-&lt;br /&gt;
| Darth Sebelius&lt;br /&gt;
| {{w|Sebelius}} is the last name of several people. &lt;br /&gt;
* {{w|Kathleen Sebelius}} is a former state representative and governor of Kansas who was Secretary of the Department of Health and Human Services under President Obama. Sebelius was the named party in a {{w|National Federation of Independent Business v. Sebelius|Supreme Court case}} that upheld the provisions of the {{w|Affordable Care Act}} (&amp;quot;Obamacare&amp;quot;). The naming of Sebelius as a villain may reference the fact that the ACA has been controversial among certain groups. &lt;br /&gt;
* {{w|Jean Sibelius}} is a renowned Finnish composer. {{w|Sibelius (scorewriter)|Sibelius}} is also the name of a piece of music software.&lt;br /&gt;
Randall may have chosen this surname as it sounds similar to {{w|Darth Sidious}}, the overarching villain in the first 6 Star Wars films, who is rumored to return in the upcoming film. &lt;br /&gt;
|-&lt;br /&gt;
| {{w|Theranos}}&lt;br /&gt;
| Theranos was a medical technology company founded by {{w|Elizabeth Holmes}} which claimed to have developed revolutionary blood tests that could produce more data from limited volumes of blood than ever before.  They were eventually found to have engaged in fraudulent activity, having tricked investors into thinking their technology was performing better than it actually was or ever could, which resulted in fines for Holmes and Theranos president {{w|Ramesh Balwani}} and the bankruptcy of Theranos. Theranos also sounds similar to {{w|Thanos}}, the main villain of the Infinity Saga in the Marvel Cinematic Universe.&lt;br /&gt;
|-&lt;br /&gt;
| Lord Juul&lt;br /&gt;
| {{w|Juul}} is a brand of e-cigarettes. In addition to the broader controversy surrounding electronic cigarettes, Juul has been investigated for its sale of flavored additives for their cigarettes, which are alleged to be particularly attractive to minors. Juul is reminiscent of the &amp;quot;uu&amp;quot; in the names for clones {{w|Joruus C'baoth}} and {{w|Luuke Skywalker}} in {{w|Star Wars Legends|''Star Wars'' Legends}} stories, thus implying Lord Juul is a clone of a character named Jul. ''{{w|Yule|Jul}}'' is the Scandinavian name for the midwinter holidays, which fits as the comic appeared within the Yule season of 2019.&lt;br /&gt;
|-&lt;br /&gt;
! colspan=&amp;quot;2&amp;quot; | New friend&lt;br /&gt;
|-&lt;br /&gt;
| Kim Spacemeasurer&lt;br /&gt;
| May be a parody of the name {{w|Luke Skywalker}}, one of the main characters in the original trilogy of films.  Other &amp;quot;Nounverber&amp;quot; names in ''Star Wars'' include Starkiller, Luke's original last name which was later applied to Starkiller Base in ''The Force Awakens'', and Biggs Darklighter, Luke's childhood friend and fellow Rebel pilot who died in the attack on the original Death Star. Also note another Star Wars comic posted a few weeks before this one, [[2229: Rey and Kylo]], which shows those characters actually deciding to measure properties of space.&lt;br /&gt;
|-&lt;br /&gt;
| Teen Yoda&lt;br /&gt;
| {{w|The Child (Star Wars character)|The Child}}, commonly called &amp;quot;Baby Yoda&amp;quot; by fans and the media, is a breakout character from the Disney+ series ''{{w|The Mandalorian}}''. Randall envisions a &amp;quot;teenage&amp;quot; version of this character teaming up with the main characters. This may be in analogy to Groot in the Marvel Cinematic Universe, who appeared as an adult, then child, then teen, or other adaptations of original characters like the Teen Titans.&lt;br /&gt;
|-&lt;br /&gt;
| Dab Tweetdeck&lt;br /&gt;
| A {{w|Dab (dance)|dab}} is a dance move which is many decades old but was made popular by that name in the late 2010's.  {{w|TweetDeck}} is an application for managing Twitter accounts.  Taken together, &amp;quot;Dab Tweetdeck&amp;quot; could be a character name proposed by clueless Disney executives to attract &amp;quot;the kids&amp;quot; to see ''The Rise of Skywalker'', although one would think that this name would be heavily promoted and thus not a spoiler in that case.&lt;br /&gt;
Tweetdeck sounds similar to twi'lek, one of the humanoid alien races in Star Wars, who often are employed as dancers.&lt;br /&gt;
|-&lt;br /&gt;
| Yaz Progestin&lt;br /&gt;
| Yaz sounds like the first name of {{w|Maz Kanata}}, a supporting protagonist in the sequel trilogy.  Yaz is a medication which contains {{w|Progestin}}, which imitates the effects of {{w|progesterone}}, a female sex hormone.  It is used for purposes including birth control and acne treatment.&lt;br /&gt;
|-&lt;br /&gt;
| TI-83&lt;br /&gt;
| Droids in the Star Wars universe typically have names with letters and numbers, such as R2-D2, C-3PO, BB-8, etc. Randall has created a new character called &amp;quot;TI-83&amp;quot;. In real life, the {{w|TI-83}} is a model of graphing calculator manufactured by {{w|Texas Instruments}} that is commonly used in American high schools.  This mirrors the origin of the name &amp;quot;R2-D2&amp;quot;, which was inspired when Lucas was working on ''{{w|American Graffiti}}'' and was asked for Reel 2, Dialog Track 2, which was abbreviated &amp;quot;R-2-D-2&amp;quot;.  He remarked that it would be a &amp;quot;great name&amp;quot; and included it in his then-in-development script for ''Star Wars''.&lt;br /&gt;
|-&lt;br /&gt;
! colspan=&amp;quot;2&amp;quot; | Lightsaber colors&lt;br /&gt;
|-&lt;br /&gt;
| [beige/ochre/mauve/aquamarine/taupe]&lt;br /&gt;
| These are different colors, none of which is a &amp;quot;traditional&amp;quot; color for a lightsaber. {{w|Beige}} is a pale-grayish yellow. {{w|Ochre}} is a clay earth pigment ranging from yellow to deep orange or brown. {{w|Mauve}} is a pale purple color. A purple color has been used for a lightsaber in the prequel trilogy series, by Jedi Master {{w|Mace Windu}}. {{w|Aquamarine (color)|Aquamarine}} is a blueish green color. {{w|Taupe}} is a dark brown color between brown and gray.&lt;br /&gt;
|-&lt;br /&gt;
! colspan=&amp;quot;2&amp;quot; | Superweapon names&lt;br /&gt;
|-&lt;br /&gt;
| Sun Obliterator&lt;br /&gt;
| There was an Expanded Universe superweapon called the &amp;quot;Sun Crusher&amp;quot;, which would infiltrate a star system and shoot a special torpedo into the star to make it go supernova. May also be a reference to one of the doodles from What If?.&lt;br /&gt;
|-&lt;br /&gt;
| Moonsquisher&lt;br /&gt;
| There were no ''Star Wars'' superweapons with the word &amp;quot;Moon&amp;quot; in their title (or &amp;quot;squisher&amp;quot;), but in the no-longer-canon ''New Jedi Order'' series, Chewbacca was squished ''by'' a moon that was intentionally de-orbited by invading Yuuzhan Vong.&lt;br /&gt;
|-&lt;br /&gt;
| World Eater&lt;br /&gt;
| Possibly a reference to {{w|Alduin}}, the main villain of the popular game {{w|The Elder Scrolls V: Skyrim}}.  In the Expanded Universe, the Empire used World Devastators, massive machines that would strip-mine planets with tractor beams and make weapons and spacecraft from the extracted resources.  Another possible reference is to the {{w|The Doomsday Machine (Star_Trek: The Original Series)|Planet Eater}} doomsday machine from the original Star Trek series. A further possible reference is to the World Eaters space marine legion from {{w|Warhammer 40,000}} franchise. Or a world eater redstone contraption from Minecraft. Or the boss for the Corruption biome in Terraria. Or Jörmungandr. There are a lot of things that this could be referring to.&lt;br /&gt;
|-&lt;br /&gt;
| Planet Zester&lt;br /&gt;
| A {{w|zester}} is a cooking tool for zesting citrus fruit, that is, scraping off the outer layer of a citrus fruit to obtain the flavorful outer layer of its skin.  Zesting a planet would be devastating to anything built or living on its surface.&lt;br /&gt;
|-&lt;br /&gt;
| Superconducting supercollider&lt;br /&gt;
| A {{w|supercollider}}, or particle accelerator, is a machine used to accelerate charged particles to very high speeds, for testing in particle physics. The {{w|Superconducting Super Collider}} was a proposed accelerator which was to be constructed in Texas, but was cancelled partway through construction.  There has been some minor controversy over the {{w|safety of high-energy particle collision experiments}}, which could theoretically produce black holes, {{w|strangelets}}, or other doomsday scenarios, but all scientific examination of the energies involved has shown that all currently-existing and planned particle accelerators pose no threats.  So far, the Earth has not been destroyed by any particle accelerator.{{Citation needed}}&lt;br /&gt;
|-&lt;br /&gt;
! colspan=&amp;quot;2&amp;quot; |  Station capabilities&lt;br /&gt;
|-&lt;br /&gt;
| blowing up a planet with a bunch of beams of energy that combine into one&lt;br /&gt;
| This is how the {{w|Death Star}} was depicted in ''{{w|Star Wars: A New Hope}}''. Many beams converged together to form one energy beam. The superweapon was used to destroy the planet Alderaan, as a way to intimidate Princess Leia.&lt;br /&gt;
|-&lt;br /&gt;
| blowing up a bunch of planets with one beam of energy that splits into many&lt;br /&gt;
| This is how the superweapon on Starkiller Base was depicted in ''{{w|Star Wars: The Force Awakens}}''. A single energy beam split into several beams, allowing it to attack many planets. The superweapon was used to destroy the planets in the Hosnian system, the headquarters of the New Republic.&lt;br /&gt;
|-&lt;br /&gt;
| cutting a planet in half and smashing the halves together like two cymbals&lt;br /&gt;
| Jango Fett's &amp;quot;seismic charge&amp;quot; weapon, which he used in a dogfight against Obi-Wan Kenobi in ''Attack of the Clones'', produced a plane wave that cut asteroids in half; presumably a larger weapon of this kind could do the same to a planet.&lt;br /&gt;
|-&lt;br /&gt;
| increasing the CO&amp;lt;sub&amp;gt;2&amp;lt;/sub&amp;gt; levels in a planet's atmosphere, causing rapid heating&lt;br /&gt;
| This is a reference to {{w|climate change}} currently occurring on planet Earth.  The {{w|Scientific consensus on climate change|overwhelming consensus among climate scientists}} is that this is that this shift is caused by human factors, such as the burning of fossil fuels releasing ancient carbon sources into the air as carbon dioxide, and mass deforestation reducing the number of trees converting the carbon dioxide into sugars and cellulose.  Climate change has been addressed repeatedly by the comic before, including [[164: Playing Devil's Advocate to Win]], [[1321: Cold]], [[1379: 4.5 Degrees]], and [[1732: Earth Temperature Timeline]].&lt;br /&gt;
This seems to have occurred on the planet {{w|Venus}}. Venus' atmosphere is 97% carbon dioxide, and it is also the hottest planet in the Solar System, due to a greenhouse effect, preventing the planet from cooling.&lt;br /&gt;
|-&lt;br /&gt;
| triggering the end credits before the movie is done&lt;br /&gt;
| The {{w|closing credits}} or end credits of a film is the list of cast and crew who were involved in the making of the film. It would be quite strange to show the end credits of the film before it has concluded, although it is one of the {{tvtropes|CreditsGag|types of credits gag}} used in other media. This entry is considerably less damaging to a planet{{Citation needed}} than the other 4 entries in this section, but if early audiences are left unsatisfied by the movie, they might tell everyone else not to see it, which would put the ''Star Wars'' franchise in a perilous financial situation.  This would negatively impact the villains as well as the heroes, but they might consider this a worthwhile trade if it is their best option at harming the heroes. This option may be a reference to exploiting a glitch to trigger a [https://youtu.be/Jf9i7MjViCE credit warp] in games such as Super Mario World. This may also be a reference to the Netflix interactive movie &amp;quot;Bandersnatch&amp;quot; in which certain choices triggered the end of the movie and caused it to start the credits.&lt;br /&gt;
|-&lt;br /&gt;
! colspan=&amp;quot;2&amp;quot; | Old enemy/new friend&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Boba Fett}}&lt;br /&gt;
| Boba Fett is a famous bounty hunter introduced in the ''{{w|Star Wars Holiday Special}}'' and made popular by ''{{w|The Empire Strikes Back}}''.  On the Empire's orders, he helped capture Han Solo as part of a plot to capture Luke Skywalker. He later tried to prevent Luke from rescuing Han, but was knocked into a sarlacc pit, where he was presumed eaten.  In the Expanded Universe, he survived and did eventually join the protagonists against extragalactic invaders; his survival has not been confirmed by Disney's new canon, but he would be a plausible character to bring back in ''The Rise of Skywalker''. A Mandalorian (not Boba Fett, but a bounty hunter using body-armour &amp;lt;!-- Boba was 'born' on the ocean-world of Kamino, being an unaccelerated clone of Jango; maybe Jango was and maybe The Mandalorian was from the desert-planet of Mandalore, but that is beyond my inherit knowledge of canon, so right now I'll make this change and let someone else who cares enough about it and has seen Disney+ refine this further--&amp;gt; from the same planet) is featured in the new Disney+ series, ''The Mandalorian''.&lt;br /&gt;
|-&lt;br /&gt;
| [[wikia:w:c:starwars:Salacious B. Crumb|Salacious Crumb]]&lt;br /&gt;
| Salacious B. Crumb is a Kowakian monkey-lizard who was Jabba the Hutt's jester.  He wasn't exactly a major adversary, but he did pull one of C-3PO's eyes out.  He was last seen on Jabba the Hutt's sail barge, which was made to explode after Han, Luke, and the rest of the heroes escaped from it, and is presumed dead.&lt;br /&gt;
|-&lt;br /&gt;
| [[wikia:w:c:starwars:Exogorth|The Space Slug]]&lt;br /&gt;
| In ''The Empire Strikes Back'', Han Solo pilots the Millennium Falcon into a giant cave to evade pursuit and get time to effect repairs.  He is interrupted when the cave turns out to be the mouth of a giant space slug, which the Falcon barely escapes.  A giant space slug might be a powerful ally in a battle against a giant space station.&lt;br /&gt;
|-&lt;br /&gt;
| The bottom half of {{w|Darth Maul}}&lt;br /&gt;
| Darth Maul was cut in half by Obi-Wan Kenobi at the end of ''The Phantom Menace''.  His &amp;quot;upper half&amp;quot;, attached to mechanical legs, has returned as a villain in the ''Clone Wars'' TV series and ''{{w|Solo: A Star Wars Story|Solo}}''.  Given that Maul was a Sith and Kenobi a Jedi, who trained Luke, who trained Rey, it would be extremely unexpected for his &amp;quot;bottom half&amp;quot; to join forces with the heroes, although presumably his bottom half would have to be attached to something, which might be better disposed towards Jedi.&lt;br /&gt;
If Darth Maul's bottom half did join the heroes, they might aid the heroes by using [[wikia:w:c:starwars:Force kick|force kicks]].&lt;br /&gt;
|-&lt;br /&gt;
| YouTube commenters&lt;br /&gt;
| The sequel trilogy has received more mixed reviews from watchers than Disney might like, and many vocal non-fans have taken to commenting on YouTube (via videos and comments) on what they don't like about the new movies and new characters.  If ''The Rise of Skywalker'' fully wins the crowd, an alliance between the heroes and their former critics would be extremely powerful, but with Rotten Tomatoes showing a critics' aggregate score of [https://www.rottentomatoes.com/m/star_wars_the_rise_of_skywalker/ less than 60%] (&amp;quot;rotten&amp;quot;), it's going to be an uphill battle.&lt;br /&gt;
|-&lt;br /&gt;
! colspan=&amp;quot;2&amp;quot; | Battle feature&lt;br /&gt;
|-&lt;br /&gt;
| a bow that shoots little lightsaber-headed arrows&lt;br /&gt;
| May be a reference to the [[wikia:w:c:starwars:Bowcaster|bowcaster]], a laser crossbow weapon used by the Wookie {{w|Chewbacca}}. It is unclear if the lightsaber-headed arrows are actually lightsabers in itself, as they would seem difficult to produce (as opposed to the Death Star, or even a bunch of sword versions of the arrow).&lt;br /&gt;
|-&lt;br /&gt;
| X-Wings and TIE fighters dodging the giant letters of the opening crawl&lt;br /&gt;
| The {{w|Star Wars opening crawl|&amp;quot;opening crawl&amp;quot;}} is a signature motif used in all the main Star Wars films, to explain the backstory and context of each film. {{w|X-Wing}}s and {{w|TIE fighter}}s are fighter-type spaceships used by the Rebels (and Resistance later on) and the Empire (and First Order), respectively. A dogfight scene during the opening crawl would involve {{w|Fourth wall|breaking the fourth wall}}, as the opening crawl is not presumed to be part of the universe of the films (except when so parodied, such as in {{w|Airplane II: The Sequel}}).&lt;br /&gt;
|-&lt;br /&gt;
| a Sith educational display that uses Force lightning to demonstrate the dielectric breakdown of air&lt;br /&gt;
| [[wikia:w:c:starwars:Force lightning|Force lightning]] is a power that Force users can use to generate electric energy from the user's hands. It was first used in ''Return of the Jedi'' by Emperor Palpatine (Darth Sidious) when Luke Skywalker refuses to give in to the dark side of the Force. Palpatine attempts to kill Luke with Force lightning, but Darth Vader saves Luke by throwing Palpatine down a reactor chute.  Palpatine also used Force Lightning on Mace Windu and Yoda during their battles at the end of ''Revenge of the Sith''.  None of these uses of Sith lightning were intended to be educational on the nature of {{w|lightning}}, although they could have been very educational on the pain, cruelty, and &amp;quot;unlimited power!&amp;quot; offered by the Dark Side of the Force. This might also be a reference to [[wikia:w:c:starwars:Sith holocron|Sith holocron]] — a device to store Force-related information and secrets, possibly. Possibly also a reference to [[2229: Rey and Kylo]] &lt;br /&gt;
|-&lt;br /&gt;
| Kylo Ren putting on another helmet over his smaller one&lt;br /&gt;
| Kylo Ren is famous for wearing his helmet in ''The Force Awakens'', which he styled after Darth Vader's helmet.  Putting on another helmet over it would require a comically large helmet that might be compared to Dark Helmet, a character from the parody film ''{{w|Spaceballs}}'' who parodies Darth Vader.&lt;br /&gt;
|-&lt;br /&gt;
| a Sith car wash where the bristles on the brushes are little lightsabers&lt;br /&gt;
| This may be a reference to some reactions to Kylo Ren's &amp;quot;lightcrossguards&amp;quot;.  In-universe, his lightsaber is said to contain a Kyber crystal of unusual power and instability, which produces excess energy that must be vented through side channels.  However, many watchers found it ridiculous to present a lightsaber that appeared to have little lightsabers sticking out of it, and produced [https://knowyourmeme.com/memes/crossguard-lightsaber fanart] accordingly.&lt;br /&gt;
While an unexpected car wash finale scene seems unlikely, it is not without precedent in cinema; ''{{w|Adolescence of Utena}}'' featured the title character unexpectedly entering a car wash and transforming into a car (followed by a segue into a car race sequence). &lt;br /&gt;
George Lucas, the originator of Star Wars also wrote the movie &amp;quot;American Graffiti,&amp;quot; which featured cars prominently.  A subsequent movie &amp;quot;Car Wash,&amp;quot; has been seen as a commentary on or imitation of &amp;quot;American Graffiti.&amp;quot;  Including a Sith car wash might reference the relation between these two films.[https://www.nytimes.com/2019/01/25/movies/streaming-car-wash.html ‘Car Wash,’ a Raunchy 1970s Comedy Brimming With Meta and Mayhem].&lt;br /&gt;
|-&lt;br /&gt;
! colspan=&amp;quot;2&amp;quot; | Rey's parent #1&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Luke Skywalker|Luke}} &lt;br /&gt;
| Luke Skywalker is the main character of the original Star Wars films.  Of all of the characters presented here, he is the one with the greatest likelihood of being Rey's father.  When Maz gave Rey Luke's lightsaber, she said &amp;quot;[t]hat lightsaber was Luke's, and his father's before him, and now, it calls to you.&amp;quot;  Luke does not seem to recognize Rey as his child (or as anybody in particular), but Darth Vader did not recognize Luke or Leia as his children -- and indeed did not know that he had any living children -- until they were grown.  However, unlike Anakin Skywalker, or the Luke Skywalker from the pre-Disney Expanded Universe, no canon materials have presented anyone with whom Luke has fallen in love or fathered a child.&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Princess Leia|Leia}} and {{w|Han Solo|Han}}&lt;br /&gt;
| Princess Leia and Han Solo are the other main characters of the original Star Wars films. It is unlikely that Leia or Han are Rey's parents as they did not seem to recognize Rey in any of the sequel trilogy films, nor is there any indication that they have had more than one child (Ben Solo, AKA Kylo Ren).&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Obi-Wan Kenobi|Obi-Wan}}&lt;br /&gt;
| Obi-Wan Kenobi was one of the main characters in the Star Wars prequel trilogy. He, along with Qui-Gon Jinn, discovered Anakin Skywalker, who later became Darth Vader. Kenobi dies at the second act of ''Star Wars: A New Hope'', sacrificing himself to allow Luke, Leia, and Han to escape the Death Star.  Marriage and parenthood were forbidden by the Jedi Order, and Obi-Wan generally adhered to the Order's rules more closely than Anakin did; Obi-Wan did feel some mutual romantic attraction with Duchess Satine of Mandalore, but they both chose to remain in their respective organizations rather than pursue a relationship.  Also, Obi-Wan stopped having a physical form decade before Rey was conceived.&lt;br /&gt;
|-&lt;br /&gt;
| a random junk trader&lt;br /&gt;
| This is who Kylo Ren claims that Rey is descended from: worthless, random junk traders.&lt;br /&gt;
|-&lt;br /&gt;
! colspan=&amp;quot;2&amp;quot; | Rey's parent #2&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Poe Dameron|Poe}}&lt;br /&gt;
| Poe Dameron is one of the main characters of the Star Wars sequel trilogy. He is a pilot in the Resistance.  He is only 13 years older than Rey, and thus is most likely not her father.&lt;br /&gt;
|-&lt;br /&gt;
| {{w|BB-8}}&lt;br /&gt;
| BB-8 is an astromech droid owned by Poe Dameron. It is unlikely that Rey is descended from a (non-living) droid, [https://youtu.be/aanyjLmB1Bs?t=1810 Alan Dean Foster's treatment of Episode IX aside].&lt;br /&gt;
|-&lt;br /&gt;
| [ {{w|Amilyn Holdo}} /{{w|Laura Dern}}]&lt;br /&gt;
| Vice Admiral Amilyn Holdo, portrayed by Laura Dern, was a leader in the Resistance. She dies at the end of ''The Last Jedi'', sacrificing herself by jumping to light speed straight into the First Order's pursuing starship.  Randall presents both Admiral Holdo, the character, and Laura Dern, the actress, as separate options for Rey's mother, but the former is not supported by any story material and the latter is impossible (Dern is alive here and now, not &amp;quot;a long time ago in a galaxy far, far away&amp;quot;).&lt;br /&gt;
|-&lt;br /&gt;
| a random junk trader&lt;br /&gt;
| (see above)&lt;br /&gt;
|-&lt;br /&gt;
| that one droid from the Jawa Sandcrawler that says ''Gonk''&lt;br /&gt;
| This is [[wikia:w:c:starwars:GNK power droid|a droid]] from ''Star Wars: A New Hope'' that says &amp;quot;Gonk&amp;quot;. As in the BB-8 entry, it is unlikely that Rey is descended from a droid.&lt;br /&gt;
|-&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
Following the release of ''The Rise of Skywalker'', we can conclude that the correct version of the spoiler would read as follows:&lt;br /&gt;
&lt;br /&gt;
In this Star Wars movie, our heroes return to take on the First Order and new villain... '''Darth Sidious''' (i.e. Emperor Palpatine, who is said to have &amp;quot;somehow&amp;quot; returned) ...with help from their new friend... '''D-O''' (a droid who turns out to have vital information).  Rey builds a new lightsaber with a... '''yellow''' blade (although this blade is not actually completed until the end of the movie), and they head out to confront the First Order's new superweapon, the... '''Final Order''' ...a ''fleet of spacecraft'' capable of... '''blowing up a bunch of planets with a bunch of beams of energy''' (one from each Star Destroyer).  They unexpectedly join forces with their old enemy... '''General Armitage Hux and Kylo Ren/Ben Solo''' ...and destroy the superweapon in a battle featuring... '''a storm of Force lightning'''.  P.S. Rey's parents are... '''a random junk trader''' ...and... '''a random junk trader, who is a clone-son of Emperor Palpatine'''.&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
:&amp;lt;big&amp;gt;Star Wars Spoiler Generator&amp;lt;/big&amp;gt;&lt;br /&gt;
&lt;br /&gt;
:[Shown below is a branching flowchart of sorts that begins at the phrase &amp;quot;In this Star Wars movie, our heroes return to take on the First Order and new villain...&amp;quot;, then flows through various paths to build up a story.]&lt;br /&gt;
&lt;br /&gt;
:In this Star Wars movie, our heroes return to take on the First Order and new villain...&lt;br /&gt;
::Kyle Ren&lt;br /&gt;
::Malloc&lt;br /&gt;
::Darth Sebelius&lt;br /&gt;
::Theranos&lt;br /&gt;
::Lord Juul&lt;br /&gt;
&lt;br /&gt;
:...with help from their new friend...&lt;br /&gt;
::Kim Spacemeasurer&lt;br /&gt;
::Teen Yoda&lt;br /&gt;
::Dab Tweetdeck&lt;br /&gt;
::Yaz Progestin&lt;br /&gt;
::TI-83&lt;br /&gt;
&lt;br /&gt;
:Rey builds a new lightsaber with a...&lt;br /&gt;
::beige&lt;br /&gt;
::ochre&lt;br /&gt;
::mauve&lt;br /&gt;
::aquamarine&lt;br /&gt;
::taupe&lt;br /&gt;
&lt;br /&gt;
:...blade, and they head out to confront the First Order's new superweapon, the...&lt;br /&gt;
::Sun Obliterator&lt;br /&gt;
::Moonsquisher&lt;br /&gt;
::World Eater&lt;br /&gt;
::Planet Zester&lt;br /&gt;
::Superconducting Supercollider&lt;br /&gt;
&lt;br /&gt;
:...a space station capable of...&lt;br /&gt;
::blowing up a planet with a bunch of beams of energy that combine into one&lt;br /&gt;
::blowing up a bunch of planets with one beam of energy that splits into many&lt;br /&gt;
::cutting a planet in half and smashing the halves together like two cymbals&lt;br /&gt;
::increasing the CO&amp;lt;sub&amp;gt;2&amp;lt;/sub&amp;gt; levels in a planet's atmosphere, causing rapid heating&lt;br /&gt;
::triggering the end credits before the movie is done&lt;br /&gt;
&lt;br /&gt;
:They unexpectedly join forces with their old enemy...&lt;br /&gt;
::Boba Fett&lt;br /&gt;
::Salacious Crumb&lt;br /&gt;
::The Space Slug&lt;br /&gt;
::the bottom half of Darth Maul&lt;br /&gt;
::Youtube commenters&lt;br /&gt;
&lt;br /&gt;
:...and destroy the superweapon in a battle featuring&lt;br /&gt;
::a bow that shoots little lightsaber-headed arrows&lt;br /&gt;
::X-Wings and TIE fighters dodging the giant letters of the opening crawl&lt;br /&gt;
::a Sith educational display that uses Force Lightning to demonstrate the dielectric breakdown of air&lt;br /&gt;
::Kylo Ren putting on another helmet over his smaller one&lt;br /&gt;
::a Sith car wash where the bristles on the brushes are little lightsabers&lt;br /&gt;
&lt;br /&gt;
:P.S. Rey's parents are...&lt;br /&gt;
::Luke&lt;br /&gt;
::Leia&lt;br /&gt;
::Han&lt;br /&gt;
::Obi-Wan&lt;br /&gt;
::a random junk trader&lt;br /&gt;
&lt;br /&gt;
:...and...&lt;br /&gt;
::Poe&lt;br /&gt;
::BB-8&lt;br /&gt;
::Amilyn Holdo&lt;br /&gt;
::Laura Dern&lt;br /&gt;
::a random junk trader&lt;br /&gt;
::that one droid from the Jawa Sandcrawler that says ''Gonk''&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
&amp;lt;!-- Include any categories below this line. --&amp;gt;&lt;br /&gt;
[[Category:Charts]]&lt;br /&gt;
[[Category:Star Wars]]&lt;br /&gt;
[[Category:Comics featuring real people]] &amp;lt;!-- Laura Dern --&amp;gt;&lt;br /&gt;
[[Category:Programming]] &amp;lt;!-- malloc --&amp;gt;&lt;/div&gt;</summary>
		<author><name>NotaBene</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2822:_*@gmail.com&amp;diff=323015</id>
		<title>2822: *@gmail.com</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2822:_*@gmail.com&amp;diff=323015"/>
				<updated>2023-09-01T03:39:50Z</updated>
		
		<summary type="html">&lt;p&gt;NotaBene: /* Explanation */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 2822&lt;br /&gt;
| date      = August 30, 2023&lt;br /&gt;
| title     = *@gmail.com&lt;br /&gt;
| image     = gmail_com_2x.png&lt;br /&gt;
| imagesize = 305x269px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = Hi all, just replying to loop in *@outlook.com and *@yahoo.com.&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
{{incomplete|Created by BOT@COMPUSERVE.NET - Please change this comment when editing this page. Do NOT delete this tag too soon.}}&lt;br /&gt;
&lt;br /&gt;
When performing operations on computer files using a command prompt, the asterisk (*) may be used to represent a collection of items whose names match a particular format. For example, &amp;quot;*.txt&amp;quot; denotes all files whose names end in &amp;quot;.txt&amp;quot;. This is called a wildcard. Similarly, the e-mail address *@gmail.com, as illustrated in the comic, is a proposed feature from Randall that would send an email to ''every'' {{w|Gmail}} user, without having each and every valid Gmail address at hand (of which there are about 1.8 billion). For obvious reasons, this is not actually a feature, but Randall suggests that if Google ever wanted to shut Gmail down, they could do either do it this way (possibly causing a service-ending overload of resources) ''or'' allow someone this one last boon (as a farewell gift, knowing that there would be relatively few additional repercussions to deal with).  Google does not seem particularly likely to shut down Gmail, as it is a source of information for their advertising and other businesses, but they are known for [https://killedbygoogle.com/ abandoning programs and projects] even after they have been found useful (by at least some people) for years.&lt;br /&gt;
&lt;br /&gt;
Reply-all is a sometimes useful feature of email that nonetheless commonly causes headaches and annoyances for both users and administrators. By allowing users to simply reply to everyone copied on the email, it encourages users to do this rather than think carefully about which people their response should be addressed to. This causes lots of users to receive irrelevant emails, and email servers to have to process and store a lot of unnecessary data. Randall's email is essentially designed to induce every Gmail user to email every other Gmail user, generating an excessively large number of emails.&lt;br /&gt;
&lt;br /&gt;
A recurring phenomenon for email users, especially in the early Internet days of the 1990s and 2000s, was a reply all storm – someone would start a message to a very large group, perhaps hundreds, and even if only 5% of recipients replied to say something like “take me off this list“, a storm of dozens of replies would soon follow. Inevitably, new replies to everyone would start saying things like, “stop Replying All!” If this were done with millions of Gmail users instead of just dozens or hundreds, their result would be apocalyptic.&lt;br /&gt;
&lt;br /&gt;
In reality, the asterisk wildcard is not generally usable via email servers, although email ''clients'' may sometimes implement such a function, internally, perhaps to support mailing-list functions (though more commonly this is done via named address-book 'groups'). That said, the asterisk ''character'' is a valid one that may form part of the name of a mailbox, including group-boxes that might facilitate server-side distribution.&lt;br /&gt;
&lt;br /&gt;
The title text suggests the possibility of a similar iteration over {{w|Outlook.com}} (formerly Hotmail) and {{w|Yahoo! Mail}}, two further well-known mail services with similarly large userbases, but this time attempting to expand the resulting lists within the mail body of the above email, which would make the broadcast message much, ''much'' larger than the simple broadcast 'spam' that the originally illustrated email would be. It's likely this would annoy a few more people than the original message did.{{Citation needed}} This also alludes to an occurrence in email chains where a user replies to simply add another user into the chain, which doesn't add much information to the group.&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
&lt;br /&gt;
:[A typical gmail UI] &lt;br /&gt;
:To: *@gmail.com (+expand)&lt;br /&gt;
:Cc: [Empty field]&lt;br /&gt;
:Bcc: [Empty field]&lt;br /&gt;
:Subj: New Friends&lt;br /&gt;
&lt;br /&gt;
:Hey all! Go ahead and introduce yourself!&lt;br /&gt;
&lt;br /&gt;
:[Caption:] If Google ever decides to shut down Gmail, they should let one user trigger a global reply-all apocalypse.&lt;br /&gt;
&lt;br /&gt;
==Trivia==&lt;br /&gt;
&lt;br /&gt;
The number of this comic (2822) is the same as the number of [https://datatracker.ietf.org/doc/html/rfc2822 RFC 2822], which is the 2001 version of the email specification (it was replaced in 2008 by RFC 5322).&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
&lt;br /&gt;
[[Category:Email]]&lt;br /&gt;
[[Category:Google]]&lt;/div&gt;</summary>
		<author><name>NotaBene</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2796:_Real_Estate_Analysis&amp;diff=316649</id>
		<title>2796: Real Estate Analysis</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2796:_Real_Estate_Analysis&amp;diff=316649"/>
				<updated>2023-06-30T20:49:29Z</updated>
		
		<summary type="html">&lt;p&gt;NotaBene: /* Explanation */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 2796&lt;br /&gt;
| date      = June 30, 2023&lt;br /&gt;
| title     = Real Estate Analysis&lt;br /&gt;
| image     = real_estate_analysis_2x.png&lt;br /&gt;
| imagesize = 474x458px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = Mars does get a good score on 'noise levels' and 'scenic views,' but the school district ranking isn't great; the only teacher--the Perseverance rover--is too busy with rock samples to teach more than the occasional weekend class.&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
{{incomplete|Created by an EASILY IMPRESSED URBANIST - Please change this comment when editing this page. Do NOT delete this tag too soon.}}&lt;br /&gt;
&lt;br /&gt;
This comic shows a chart ranking locations in our solar system (the eight current planets and Earth's moon) along two scales: their walkability and their proximity to shops. As this is a &amp;quot;real estate analysis&amp;quot;, this comic mocks real life &amp;quot;real estate analyses&amp;quot; for people who are looking to buy a new home. Walkability measures the ease of walking as a form of transportation in an area (often related to how urban that area is), and is measured by metrics like the 100-point walk score, with higher numbers representing easier and safer walking. Proximity to commercial shops and eating establishments can likewise be a factor for potential buyers looking for a convenient living environment. While no units are provided, proximity can be defined as a number that increases with decreasing distance.&lt;br /&gt;
&lt;br /&gt;
Earth is rated as more walkable than the other locations, probably because humans can walk on much of its surface without immediate &amp;amp; continuous existential need for environmental survival gear (so far), and due to the gravity on its surface. Earth also rates high on the &amp;quot;proximity to shops and restaurants&amp;quot; scale because its surface hosts all commercial establishments known to humans; most of businesses are within a few building stories of the surface, though some &amp;quot;shops&amp;quot; on airplanes are up to several kilometers above it. The next closest body, the Moon, is typically around 384,400 km away from Earth, about five orders of magnitude further from those businesses. Venus is 108 million km away while Uranus is 2.9 billion, so all these bodies' clustering near 0 on the proximity scale (where Earth has a 10) masks a large difference in accessibility. The gas giants Jupiter and Saturn are assessed marginally higher walkability scores than the solid Mercury (where temperatures are extreme, but do briefly pass through the range survivable for humans as the planet rotates); maybe their less-hostile (and, in the case of Ganymede and Titan, physically larger) moons are taken into account here.&lt;br /&gt;
&lt;br /&gt;
Based on Earth's high score on both metrics, Randall makes the claim &amp;quot;I get why this place is so popular&amp;quot;. Most humans would agree with Earth being preferable (no human is known to have permanently inhabited private real estate on any celestial body besides Earth), but would be more concerned with local differences in livability.&lt;br /&gt;
&lt;br /&gt;
The alt text comments that Mars did score high on the 'noise levels' and 'scenic views' scores: Having a thinner atmosphere and having (close to) zero sources of manmade noise, Mars is certainly silent, a quality that is desirable when searching for a home as lower noise levels help maintain a calm and relaxed lifestyle, and its large, barren scenery has been abundantly documented by the several rovers sent to its surface, resulting in widespread fascination with its serene landscapes. However, it then states the 'school district' ranking (proximity to a good schooling system, which is also desirable, especially by families) is rather poor on account of there being only one available teacher - the rover ''Perseverance'' - and it being too busy with its rock samples. ''Perseverance'' is (at the time of this comic's publication) a still-active Mars rover whose main purpose is to examine minerals from Mars' surface and scan them for signs compatible with ancient life: while it could hypothetically serve as a teacher (using its memory banks as teaching material, for instance), doing so would greatly interfere with its main mission if done regularly.&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
{{incomplete transcript|Do NOT delete this tag too soon.}}&lt;br /&gt;
&lt;br /&gt;
:[A graph is shown. Both axes have a label with an arrow and 10 visible ticks.]&lt;br /&gt;
:Y-axis: Walkability score&lt;br /&gt;
:X-axis: Proximity to shops and restaurants&lt;br /&gt;
:[Labels of multiple dots at around (0, 0), clockwise:]&lt;br /&gt;
:Mars, The Moon, Mercury, Venus, Neptune, Uranus, Saturn, Jupiter&lt;br /&gt;
:[Label of a dot at roughly (9.5, 9.5):]&lt;br /&gt;
:Earth&lt;br /&gt;
&lt;br /&gt;
:[Caption below the panel:]&lt;br /&gt;
:After doing a real estate analysis, I get why this place is so popular.&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
&lt;br /&gt;
[[Category:Charts]]&lt;br /&gt;
[[Category:Astronomy]]&lt;br /&gt;
[[Category:Mars rovers]]&lt;/div&gt;</summary>
		<author><name>NotaBene</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=808:_The_Economic_Argument&amp;diff=315151</id>
		<title>808: The Economic Argument</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=808:_The_Economic_Argument&amp;diff=315151"/>
				<updated>2023-06-07T21:40:47Z</updated>
		
		<summary type="html">&lt;p&gt;NotaBene: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 808&lt;br /&gt;
| date      = October 20, 2010&lt;br /&gt;
| title     = The Economic Argument&lt;br /&gt;
| image     = the economic argument.png&lt;br /&gt;
| titletext = Not to be confused with 'making money selling this stuff to OTHER people who think it works', which corporate accountants and actuaries have zero problems with.&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
The image shows fields of human life that would be greatly improved and/or allow certain people to make a lot of money if some crazy phenomena (mostly {{w|paranormal}}) actually worked in reality or were testable and usable concepts. Crazy phenomena, in this case, means counter-intuitive things that go against common sense and which science often contradicts (though relativity and QM are a major part of physics, they are still counterintuitive and could be considered to sound crazy). As the comic tries to prove, if there were commercial use for it and proofs of it working, there will be high investment made in the technology to use and harness such concepts.&lt;br /&gt;
&lt;br /&gt;
So far only {{w|Theory of relativity|relativity}} and {{w|quantum electrodynamics}} have major evidence backing them. Specifically, the theory of relativity is heavily embedded into how your {{w|Global Positioning System|Global Positioning System (GPS)}} device synchronizes with satellites a hundred miles in the air and calculates your current position. The design of modern circuit-boards and other electronic devices is influenced by quantum electrodynamics — smartphones or high capacity hard drives wouldn't be possible without this theory.&lt;br /&gt;
&lt;br /&gt;
The non-scientific/disproved concepts trying to pass as real and scientific are:&lt;br /&gt;
&lt;br /&gt;
*'''{{w|Remote viewing}}:''' Alleged ability to see and know things far away with the strength of your mind, without physically being in that place or using technology (cameras, TV screens and so on).&lt;br /&gt;
*'''{{w|Dowsing}}:''' Alleged supernatural ability to sense, using two dowsing rods/sticks/pieces of metal where underground water/oil supplies or hidden valuables are.&lt;br /&gt;
**Both dowsing and remote viewing would have greatly cut costs to oil companies, because it would have made finding new oil sources easier.  The U.S. Army did seriously study remote viewing and other paranormal abilities in a series of programs collectively known as the {{w|Stargate Project}}, depicted in the 2004 book and 2009 film {{w|The Men Who Stare at Goats (film)|''The Men Who Stare at Goats''}}; however, the project was concluded in 1995 after reviews concluded that the rate of successful divination of actionable intelligence was no greater than that of random chance.&lt;br /&gt;
&lt;br /&gt;
*'''{{w|Aura (paranormal)|Auras}}:''' Non-scientific belief that every human has an invisible &amp;quot;energy field&amp;quot; that can affect their health and feelings.&lt;br /&gt;
*'''{{w|Homeopathy}}:''' Pseudoscientific belief that the more diluted a remedy, the more effective it is, and that the remedy should, before dilution, cause similar symptoms to the disease it is said to cure. These &amp;quot;remedies&amp;quot; are often diluted so much that, usually, not even a single molecule of the original substance will remain. It is completely untrue, and proven no more effective than a placebo, so one can instead use much cheaper non-'treated' glucose and have the same effect. It is often advertised as an &amp;quot;alternative medicine&amp;quot;.&lt;br /&gt;
*'''{{w|Prayer#Prayer_healing|Remote Prayer}}:''' Non-scientific belief. Trying to help a person with their health problems by praying/pleading to a greater supernatural force to help them get better. While we're not ones to rag on anybody's religion, we don't have scientific proof or empirical evidence of it working; such prayer may sometimes have a ''detrimental'' effect if the person knew they were prayed for (most probably due  to causing extra stress).&lt;br /&gt;
**All three would have revolutionized healthcare if proven to work, which is very, very unlikely.&lt;br /&gt;
&lt;br /&gt;
*'''{{w|Astrology}}:''' Trying to predict the future by studying the motions of the planets for answers - a non-scientific and very popular belief that tries to look scientific; this was a major focus of {{w|astronomy}} until science began to disprove it in the 1600s.&lt;br /&gt;
*'''{{w|Divinatory, esoteric and occult tarot|Tarot}}:''' Trying to predict the future through dealing a {{w|Tarot deck|special deck of cards}}. &lt;br /&gt;
**Both would have revolutionized our business planning, saving lots of money and lives, if true.&lt;br /&gt;
&lt;br /&gt;
*'''{{w|Crystal healing|Crystal energy}}:''' Non-scientific belief that crystals can store {{w|Energy (esotericism)|&amp;quot;soul energy&amp;quot;}} which can be tapped into and used by human beings.&lt;br /&gt;
**If true and correct, it would have revolutionized the world's technology by replacing energy sources with crystals.&lt;br /&gt;
&lt;br /&gt;
*'''{{w|Curse|Curses and hexes}}:''' Non-scientific belief that a person can cause supernatural harm to people and things by doing certain magical rituals and mouthing magical words.&lt;br /&gt;
**If it were true, the military use of such would have proliferated rather quickly.&lt;br /&gt;
&lt;br /&gt;
The title text points out that many people still believe in non-scientific, unproven, and disproved phenomena; thus, it's possible to make a lot of money by selling those (claimed) phenomena to such people (although knowingly selling non-existent phenomena, while claiming that they work, would be fraud, and thus illegal).&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
:[A three-column table. The headings are actually standing above the table.]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
:{| class=&amp;quot;wikitable alternance&amp;quot;&lt;br /&gt;
! Crazy&amp;lt;br/&amp;gt;phenomenon&lt;br /&gt;
! If it worked, companies&amp;lt;br/&amp;gt;would be using it to&amp;lt;br/&amp;gt;make a killing in...&lt;br /&gt;
! Are&amp;lt;br/&amp;gt;they?&lt;br /&gt;
|-&lt;br /&gt;
| Remote Viewing&lt;br /&gt;
| rowspan = 2 | Oil Prospecting&lt;br /&gt;
|&lt;br /&gt;
|-&lt;br /&gt;
| Dowsing&lt;br /&gt;
|&lt;br /&gt;
|-&lt;br /&gt;
| Auras&lt;br /&gt;
| rowspan = 3 | Health Care&amp;lt;br/&amp;gt;Cost Reduction&lt;br /&gt;
|&lt;br /&gt;
|-&lt;br /&gt;
| Homeopathy&lt;br /&gt;
|&lt;br /&gt;
|-&lt;br /&gt;
| Remote Prayer&lt;br /&gt;
|&lt;br /&gt;
|-&lt;br /&gt;
| Astrology&lt;br /&gt;
| rowspan = 2 | Financial/Business&amp;lt;br/&amp;gt;Planning&lt;br /&gt;
|&lt;br /&gt;
|-&lt;br /&gt;
| Tarot&lt;br /&gt;
|&lt;br /&gt;
|-&lt;br /&gt;
| Crystal Energy&lt;br /&gt;
| Regular Energy&lt;br /&gt;
|&lt;br /&gt;
|-&lt;br /&gt;
| Curses, Hexes&lt;br /&gt;
| The Military&lt;br /&gt;
|&lt;br /&gt;
|-&lt;br /&gt;
| Relativity&lt;br /&gt;
| GPS Devices&lt;br /&gt;
| style=&amp;quot;text-align:center;&amp;quot; | ✓&lt;br /&gt;
|-&lt;br /&gt;
| Quantum&amp;lt;br/&amp;gt;Electrodynamics&lt;br /&gt;
| Semiconductor&amp;lt;br/&amp;gt;Circuit Design&lt;br /&gt;
| style=&amp;quot;text-align:center;&amp;quot; | ✓&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
:Eventually, arguing that these things work means arguing that modern capitalism isn't ''that'' ruthlessly profit-focused.&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
[[Category:Charts]]&lt;br /&gt;
[[Category:Physics]]&lt;br /&gt;
[[Category:Paranormal]]&lt;/div&gt;</summary>
		<author><name>NotaBene</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2784:_Drainage_Basins&amp;diff=314849</id>
		<title>2784: Drainage Basins</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2784:_Drainage_Basins&amp;diff=314849"/>
				<updated>2023-06-02T23:10:23Z</updated>
		
		<summary type="html">&lt;p&gt;NotaBene: /* Explanation */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 2784&lt;br /&gt;
| date      = June 2, 2023&lt;br /&gt;
| title     = Drainage Basins&lt;br /&gt;
| image     = drainage_basins_2x.png&lt;br /&gt;
| imagesize = 659x500px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = After a pail of water was thrown on the Wicked Witch of the West outside Salt Lake City, Utah's Great Salt Lake was measured to be 7 parts per trillion witch by volume.&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
{{incomplete|Created by a 90s KID - Please change this comment when editing this page. Do NOT delete this tag too soon.}}&lt;br /&gt;
Alex Mack was the main character in the Nickelodeon show ''{{w|The Secret World of Alex Mack}}'' [https://web.archive.org/web/20120516025126/http://articles.latimes.com/1994-10-02/news/tv-45351_1_alex-mack] who developed superpowers after being drenched by an experimental substance. One of these is the ability to turn into a puddle of liquid.&lt;br /&gt;
&lt;br /&gt;
A {{w|drainage basin}} is an area of land where all flowing water converges to a single point.&lt;br /&gt;
&lt;br /&gt;
When Randall sees a map of the US's major drainage basins, he thinks of Alex turning into liquid and flowing as part of the basin she happens to be in at the time.&lt;br /&gt;
&lt;br /&gt;
The title text refers to the {{w|Wicked Witch of the West}}, a character from ''{{w|The Wonderful Wizard of Oz}}''. When a bucket of water is thrown on her, she dissolves into a puddle. If this happens in the {{w|Great Basin}}, she'll flow into Utah's {{w|Great Salt Lake}}. If its dissolved particles are measured, a tiny fraction will be witch.  Seven trillionths of its 18.93 cubic km volume is about 130 liters, which is approximately twice the volume of a typical human being.  Perhaps some generous rounding, evaporation of the lake, or the Wicked Witch of the East (who predeceased her sister, after Dorothy's house landed on her -- Dorothy is from Kansas, which is not in the Great Basin, but perhaps Oz is) are involved.&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
{{incomplete transcript|Do NOT delete this tag too soon.}}&lt;br /&gt;
:US Drainage Basins [Crossed Out]&lt;br /&gt;
:&amp;lt;span style=&amp;quot;color:red&amp;quot;&amp;gt;Where Alex Mack Will End Up&amp;lt;/span&amp;gt; [Below, in red]&lt;br /&gt;
&lt;br /&gt;
:[Map of the United States, with the following drainage basins labeled:]&lt;br /&gt;
:Pacific Ocean&lt;br /&gt;
:Great Basin&lt;br /&gt;
:Arctic Ocean&lt;br /&gt;
:Various Basins&lt;br /&gt;
:Hudson Bay&lt;br /&gt;
:Gulf of Mexico&lt;br /&gt;
:Atlantic Ocean&lt;br /&gt;
&lt;br /&gt;
:[Caption below the panel:]&lt;br /&gt;
:How I still think of these maps, deep down&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
&lt;br /&gt;
[[Category:Comics with color]]&lt;br /&gt;
[[Category:Comics with red corrections]]&lt;br /&gt;
[[Category:US maps]]&lt;br /&gt;
[[Category:Fiction]]&lt;/div&gt;</summary>
		<author><name>NotaBene</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2783:_Ruling_Out&amp;diff=314734</id>
		<title>2783: Ruling Out</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2783:_Ruling_Out&amp;diff=314734"/>
				<updated>2023-06-01T15:33:24Z</updated>
		
		<summary type="html">&lt;p&gt;NotaBene: /* Explanation */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 2783&lt;br /&gt;
| date      = May 31, 2023&lt;br /&gt;
| title     = Ruling Out&lt;br /&gt;
| image     = ruling_out_2x.png&lt;br /&gt;
| imagesize = 295x396px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = We were able to replicate and confirm prior authors' detection of a moon orbiting the Earth with high confidence.&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
{{incomplete|Created by a TECTONICALLY-ACTIVE BOT WITH SUBSURFACE OCEANS. Do NOT delete this tag too soon.}}&lt;br /&gt;
&lt;br /&gt;
Most science studies are intended to discover new things. In astronomy, the goal is often to find different types of objects in space, or learn how astronomical objects are formed and behave. But often from studying things that exist, we also learn about limits of the kinds of things that ''can'' exist; when this happens, we say that we've &amp;quot;ruled out&amp;quot; the excluded phenomena.&lt;br /&gt;
&lt;br /&gt;
[[Cueball]] lists five obviously impossible objects.&lt;br /&gt;
&lt;br /&gt;
* &amp;quot;Earthlike stars&amp;quot;: A play on &amp;quot;Earth-like planets&amp;quot; which scientists are very interested in finding. The Earth is not a star, hence stars cannot be Earthlike.&lt;br /&gt;
: Searches for both {{w|List of potentially habitable exoplanets|Earth-like planets}} and {{w|Solar analog|Sun-like stars}} go unabated, with various near matches found.&lt;br /&gt;
&lt;br /&gt;
* &amp;quot;Exoplanets in our solar system&amp;quot;: {{w|Exoplanet}}s are by definition not in our solar system.&lt;br /&gt;
: Planets in our solar system (even {{w|Planets beyond Neptune|undiscovered ones}}) are unaffected, as is the {{w|List of exoplanet search projects|search for exoplanets}} around other stars, with conclusive evidence of both.&lt;br /&gt;
&lt;br /&gt;
* &amp;quot;Habitable-zone quasars&amp;quot;: {{w|Quasar}}s in the {{w|habitable zone}}s of stars are only theoretically feasible for small {{w|black hole}}s with active {{w|accretion disk}}s near the Earth and brighter than the Sun, because of the technical criteria for classifying them in terms of their {{w|apparent magnitude}} relative to that of their galaxy.[https://iopscience.iop.org/article/10.1088/0004-637X/728/1/26] None such have ever been observed.{{fact}} While typical galaxies usually have only one quasar in their center, merging galaxies often have two far apart.&lt;br /&gt;
:While not certain, habitable zones around some quasars have absolutely not been ruled out.[https://iopscience.iop.org/article/10.3847/1538-4357/ab1b2f/meta][https://iopscience.iop.org/article/10.1088/1742-6596/2364/1/012057/meta]&lt;br /&gt;
&lt;br /&gt;
* &amp;quot;Stars with subsurface oceans&amp;quot;: Because the temperatures inside stars are higher than that which can support the existence of liquids as we understand them, stars cannot have subsurface oceans. After many billions of years, a {{w|white dwarf}} will cool to the point where it no longer emits significant heat or light, becoming a {{w|black dwarf}}, eventually cooling to the point where it might develop subsurface liquids.{{acn}} However, the universe is not old enough for any black dwarfs to exist yet,[https://iopscience.iop.org/article/10.1086/375341/pdf] and sufficiently cool black dwarfs would probably not even be considered stars, but rather {{w|rogue planet}}s.&lt;br /&gt;
: The possibility of subsurface oceans within various planets and moons is an {{w|Extraterrestrial liquid water|active subject of study}}.&lt;br /&gt;
&lt;br /&gt;
* &amp;quot;Tectonically active black holes&amp;quot;: Black holes do not have {{w|tectonic plate}}s, so they cannot be tectonically active.&lt;br /&gt;
: There are theories that neutron stars can exhibit {{w|Quake (natural phenomenon)#Starquake|tectonic-like movements}} (as some of the more typical rocky bodies certainly do), but the physics of the 'inside' of a black hole is thought to have {{w|Black hole#Singularity|strange physics}} incompatible with any form of geology, and cannot be observed anyway -- it is believed that the only externally-observable properties of black holes are mass, electric charge, and angular momentum, poetically called the '{{w|no-hair theorem}}'.&lt;br /&gt;
&lt;br /&gt;
The joke is that you don't actually have to study anything to come to these almost patently obvious conclusions. The counter-proposals would need far more effort to even justify them as valid theories, by common understanding, and greater still to try to observe any supporting proof.&lt;br /&gt;
&lt;br /&gt;
Some studies are also done to confirm the results of previous studies, to ensure that the conclusions were not mistaken or a fluke. The title text describes a study that was done to confirm the existence of a moon orbiting Earth, even though the existence of the moon has been known for at least as long as humanity has existed, and the fact that it orbits the Earth has been assumed or known for upwards of 3000 years. The ancient Greeks and Babylonians, for example, thought that the Moon orbited the Earth, though they lacked a detailed physical understanding of the system (they also believed, erroneously{{Citation needed}}, that {{w|Geocentric model|everything else in the universe orbited the Earth too}}). {{w|Anaxagoras}} (c. 500–428 BC) is credited with the correct explanation of lunar eclipses, and reportedly was the first to explain that the Moon shines due to reflected light from the Sun. However, it was not until the work of {{w|Nicolaus Copernicus}} in the 16th century that a detailed and accurate model of the Moon's orbit around the Earth was developed.  Regardless, at this stage, a study to confirm the validity of Copernican orbits would contribute nothing to the scientific process, much less a study confirming the mere existence of the Moon.&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
{{incomplete transcript|Do NOT delete this tag too soon.}}&lt;br /&gt;
&lt;br /&gt;
:[Cueball is talking to Megan.]&lt;br /&gt;
:Cueball: So far our astronomy group has published studies ruling out the existence of Earthlike stars, exoplanets in our solar system, habitable-zone quasars, stars with subsurface oceans, and tectonically active black holes.&lt;br /&gt;
&lt;br /&gt;
:[Caption below the panel:]&lt;br /&gt;
:Science got way easier when we realized you were allowed to do studies just to rule stuff out.&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
&lt;br /&gt;
[[Category:Comics featuring Cueball]]&lt;br /&gt;
[[Category:Comics featuring Megan]]&lt;br /&gt;
[[Category:Astronomy]]&lt;br /&gt;
[[Category:Science]]&lt;/div&gt;</summary>
		<author><name>NotaBene</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2780:_Physical_Quantities&amp;diff=314214</id>
		<title>2780: Physical Quantities</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2780:_Physical_Quantities&amp;diff=314214"/>
				<updated>2023-05-26T14:03:01Z</updated>
		
		<summary type="html">&lt;p&gt;NotaBene: /* Explanation */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 2780&lt;br /&gt;
| date      = May 24, 2023&lt;br /&gt;
| title     = Physical Quantities&lt;br /&gt;
| image     = physical_quantities_2x.png&lt;br /&gt;
| imagesize = 338x183px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = The Hubble length is about 1.9 meters lying down; Edwin Hubble was a tall guy.&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
{{incomplete|Created by a TALL SCIENTIST - Do NOT delete this tag too soon.}}&lt;br /&gt;
&lt;br /&gt;
This comic plays on the name of various established physical definitions by simply taking them overly literally. Each one is treated as being a bodily measure of the scientist after which they are named, rather than describing/estimating the eponymous feature within the scientist's field of study.  Of the many {{w|List of scientific units named after people|units named for people}}, only one is actually a measurement of its namesake: the {{w|Smoot}}.&lt;br /&gt;
&lt;br /&gt;
;Hubble volume&lt;br /&gt;
In cosmology, a {{w|Hubble volume}} (named for the astronomer {{w|Edwin Hubble}}) is a spherical region of the observable universe.&lt;br /&gt;
The Hubble volume is approximately equal to 10&amp;lt;sup&amp;gt;31&amp;lt;/sup&amp;gt; cubic light years (or about 10&amp;lt;sup&amp;gt;79&amp;lt;/sup&amp;gt; cubic meters).&lt;br /&gt;
The value given in the comic is the estimated volume of Edwin Hubble's body.&lt;br /&gt;
&lt;br /&gt;
;Schwarzschild radius&lt;br /&gt;
The {{w|Schwarzschild radius}} of a black hole refers to the event horizon: the radius beyond which light cannot escape. Curling up in a ball tends to reduce people's radii,{{fact}} while making them more spherical and easier to measure, so {{w|Karl Schwarzschild}}'s is given as 0.34 m, corresponding to a black hole of about 40 times the mass of Earth.&lt;br /&gt;
&lt;br /&gt;
;Broca's area&lt;br /&gt;
{{w|Broca's area}} is a region of the brain whose functions are linked to speech. It is not a measurement of area in the sense of length times width. The measurement shown here purports to be the area of {{w|Paul Broca}} (which might refer to the {{w|Body surface area|surface area of his body}}, or the area his body takes up), but it is given in cubic meters (a measure of volume) rather than square meters (a measure of area). (The surface area of an adult human is about two square meters.) This area was recently mentioned in the title text of [[2732: Bursa of Fabricius]].&lt;br /&gt;
&lt;br /&gt;
;Fermi temperature&lt;br /&gt;
The concept of Fermi Temperature is {{w|Fermi energy#Related quantities|related to the Fermi Energy}}, a quantum value inherent to very cold substances. The {{w|Human body temperature|temperature of an average human}} is about 37 degrees Celsius, so it makes sense that {{w|Enrico Fermi}}’s temperature was 37 degrees Celsius, when he was alive. Today we can no longer test this, as he died in 1954. {{citation needed}}&lt;br /&gt;
&lt;br /&gt;
;Planck length&lt;br /&gt;
{{w|Planck units}} are naturally-derived measurements invented by {{w|Max Planck}}; the Planck length (approximately 1.6×10&amp;lt;sup&amp;gt;-35&amp;lt;/sup&amp;gt; m) is one of the smallest meaningful distances. However, Randall measures the length of Max Planck, not the units. It is specifically when Planck was lying down (as to not decrease his height from a days exposure to gravity which may shorten a human by a centimeter or so, and also because lying down turns a human’s height into a length, as well as being a pun on the plank exercise, which is done in a horizontal position).&lt;br /&gt;
&lt;br /&gt;
;Hubble length (title text)&lt;br /&gt;
A {{w|Hubble's_law#Hubble_length|Hubble length}} is 14.4 billion light years. This is a joke similar to the above play on the Planck length. The Hubble distance would be the distance between the Earth and the galaxies which are currently receding from us at the speed of light. The joke is that the Hubble length is 14 cm longer than the Planck length because Hubble was a tall man. Another joke by comparing these two are that these two distances are about as far from each other as possible on scales that make sense. The smallest distance to something on the order of the size of the visible universe.&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
{{incomplete transcript|Do NOT delete this tag too soon.}}&lt;br /&gt;
&lt;br /&gt;
:[A centered header appears above a list.]&lt;br /&gt;
:Reference Physical Quantities&lt;br /&gt;
&lt;br /&gt;
:Hubble volume: 96L&lt;br /&gt;
:Schwarzchild radius: 0.34m (curled up)&lt;br /&gt;
:Broca's area: 1.7m&amp;lt;sup&amp;gt;3&amp;lt;/sup&amp;gt;&lt;br /&gt;
:Fermi temperature: 37°C&lt;br /&gt;
:Planck length: 1.76m (lying down)&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
[[Category:Comics featuring real people]]&lt;br /&gt;
[[Category:Comics with lowercase text]]&lt;br /&gt;
[[Category:Astronomy]]&lt;br /&gt;
[[Category:Physics]]&lt;br /&gt;
[[Category:Biology]]&lt;br /&gt;
[[Category:Science]]&lt;/div&gt;</summary>
		<author><name>NotaBene</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=213:_Ghostbusters_Marathon&amp;diff=311378</id>
		<title>213: Ghostbusters Marathon</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=213:_Ghostbusters_Marathon&amp;diff=311378"/>
				<updated>2023-04-24T13:16:33Z</updated>
		
		<summary type="html">&lt;p&gt;NotaBene: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 213&lt;br /&gt;
| date      = January 22, 2007&lt;br /&gt;
| title     = Ghostbusters Marathon&lt;br /&gt;
| image     = ghostbusters marathon.png&lt;br /&gt;
| titletext = If you walk out that door you'll be crossing the Rubicon with me, and that's one stream I'm not ready to cross.&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
''{{w|Ghostbusters}}'' is a 1984 supernatural comedy film that spawned a sequel, two {{w|The Real Ghostbusters|animated television series}} (the {{w|Extreme Ghostbusters|latter}} of which lasted less than a season, didn't feature the same cast of titular Ghostbusters, and therefore is probably being pointedly ignored...or maybe left as a 'surprise' for later, after getting through the animated series), and, several years after the publication of this comic, a reboot and then another sequel (to the original movies, not the reboot). The box, a &amp;quot;Muon Containment Trap,&amp;quot; is a device used in the film to capture ghosts. It is connected to a footswitch by a cable. The man trying to leave is about to be pulled into the box and held there indefinitely (against his will, of course).&lt;br /&gt;
&lt;br /&gt;
The title text refers to Julius Caesar's crossing of the {{w|Rubicon#History|Rubicon}}, a river (or very large stream) that marked the border between Roman Italy and an area of land Caesar was the appointed governor of. At the end of his term, the Roman Senate ordered him to disband his army and return to Italy. Instead, he brought his forces past the border, an act of treason and rebellion against the Republic, instigating the Roman Civil War. The phrase &amp;quot;crossing the Rubicon&amp;quot; now means making a move with gigantic consequences that cannot be undone. In the film ''Ghostbusters'', the protagonists use &amp;quot;proton packs&amp;quot; that fire &amp;quot;streams&amp;quot; of energy. The inventor of the device warns that these streams should not be crossed against each other, as doing so &amp;quot;would be bad.&amp;quot; Just how bad? &amp;quot;Try to imagine all life as you know it stopping instantaneously and every molecule in your body exploding at the speed of light.&amp;quot; Important safety tip.&lt;br /&gt;
&lt;br /&gt;
:Final quote taken from the 1984 movie ''{{w|Ghostbusters}}''.&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
:[Cueball and a friend are in a room. Cueball is standing up. There is litter around them.]&lt;br /&gt;
:Cueball: Okay, that's all the Ghostbusters marathon I can handle. Later!&lt;br /&gt;
:Friend: You can't leave! We just started the animated series!&lt;br /&gt;
&lt;br /&gt;
:Cueball: I've had my fill. I'm going home.&lt;br /&gt;
:Friend: I can't let you do that.&lt;br /&gt;
&lt;br /&gt;
:[Cueball walks along a cord and past a box. The friend clicks a switch.]&lt;br /&gt;
:''Click''&lt;br /&gt;
&lt;br /&gt;
:[Cueball is bathed in some kind of aura emitted by the box.]&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
[[Category:Comics featuring Cueball]]&lt;/div&gt;</summary>
		<author><name>NotaBene</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2756:_Qualifications&amp;diff=309503</id>
		<title>2756: Qualifications</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2756:_Qualifications&amp;diff=309503"/>
				<updated>2023-03-31T12:51:46Z</updated>
		
		<summary type="html">&lt;p&gt;NotaBene: /* Explanation */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 2756&lt;br /&gt;
| date      = March 29, 2023&lt;br /&gt;
| title     = Qualifications&lt;br /&gt;
| image     = qualifications_2x.png&lt;br /&gt;
| imagesize = 265x316px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = 'So how DID you go from working at the employment records office to becoming president of MIT and CEO of IBM?' 'I guess I just have an eye for opportunities.'&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
{{incomplete|Created by a 600-YEAR-OLD BOT waiting for a child to be born to accept its work history - Please change this comment when editing this page. Do NOT delete this tag too soon.}}&lt;br /&gt;
&lt;br /&gt;
[[Black Hat]] is being interviewed for some unidentified position. From the conversation, it seems clear that he has used some prior access to the employment records at some employment record office to fraudulently manufacture a history of having worked there for 600 years. There are some institutions that are extant today with over 600 years of history, but almost certainly none of their individual offices or departments have existed for that long; also, human lifespans rarely exceed 100 years, never mind 600 {{citation needed}}. He also claims an additional pair of prestigious jobs, but it is unclear whether these 'facts' were entirely due to false records or, knowing Black Hat's [[498: Secretary: Part 5|other]] [[1094: Interview|interviews]], briefly true but only as a result of false representation/underhanded actions.&lt;br /&gt;
&lt;br /&gt;
His interviewers, Cueball and Hairbun, are not entirely unaware of the implausibility, but Hairbun, at least, seems content to have just verified the validity of the claim. The 'validation' arises from the clearly tainted information source, given the whole chain of supporting evidence that may have been falsified. This is essentially a more elaborate version of Black Hat's ploy in another interview [[125: Marketing Interview|17 years prior]].&lt;br /&gt;
&lt;br /&gt;
Employers often encounter resumés that have implausibly padded experience claims. Most applicants try not to be this implausible, and few employers are so credulous as to take self-supporting lies at face value.&lt;br /&gt;
&lt;br /&gt;
[[:Category:Job interviews|Job interviews]] are a recurring topic on xkcd.&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
{{incomplete transcript|Do NOT delete this tag too soon.}}&lt;br /&gt;
&lt;br /&gt;
:[Black Hat sits in an office chair. Cueball, facing him, sits on another office chair at his desk and Hairbun stands behind him. Cueball is holding documents in his hands.]&lt;br /&gt;
:Cueball: Impressive résumé.&lt;br /&gt;
:Cueball: It says that you have over '''''six hundred''''' years of experience at the employment records office? That can't be right.&lt;br /&gt;
:Hairbun: I thought so too, but it checks out.&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
&lt;br /&gt;
[[Category:Comics featuring Black Hat]]&lt;br /&gt;
[[Category:Comics featuring Cueball]]&lt;br /&gt;
[[Category:Comics featuring Hairbun]]&lt;br /&gt;
[[Category:Job interviews]]&lt;/div&gt;</summary>
		<author><name>NotaBene</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2741:_Wish_Interpretation&amp;diff=306705</id>
		<title>2741: Wish Interpretation</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2741:_Wish_Interpretation&amp;diff=306705"/>
				<updated>2023-02-23T15:56:39Z</updated>
		
		<summary type="html">&lt;p&gt;NotaBene: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 2741&lt;br /&gt;
| date      = February 22, 2023&lt;br /&gt;
| title     = Wish Interpretation&lt;br /&gt;
| image     = wish_interpretation_2x.png&lt;br /&gt;
| imagesize = 740x288px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = &amp;quot;I wish for everything in the world. All the people, money, trees, etc.&amp;quot; &amp;quot;Are you SURE you--&amp;quot; &amp;quot;And I want you to put it in my house.&amp;quot;&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
{{incomplete|Created by Rain, Rain, Stay - Do NOT delete this tag too soon.}}&lt;br /&gt;
	&lt;br /&gt;
In stories where wishing can come true by magical means, a common theme is that the wisher will make a wish (for greater or lesser personal gain) but the entity who grants it will {{tvtropes|LiteralGenie|inadvertently}} (or {{tvtropes|JackassGenie|'inadvertently'}}) fulfill the exact wording such that something bad happens which the wisher clearly did not foresee. This may teach the wisher, or at least the reader of the story, an important moral lesson against greed. The wish-granter is not always represented as deliberately obtuse or malicious, but may merely be a naive and uncritical servant of the wish-granting process. A wish for money, for example, might be 'easiest' to accomplish by suddenly being the recipient of a loved-one's Life Insurance rather than the rather less upsetting scenario of finding that they possess a winning Lottery ticket. In the comic, however, this genie is perfectly self-aware of the part he will play in creatively misapplying the wish, and even goes so far as to forewarn the wisher – maybe a deliberate ploy to have wishers take a moment to think and tone down their more spontaneous demands.&lt;br /&gt;
&lt;br /&gt;
However, as is characteristic for him, Black Hat immediately wishes for rain to no longer happen, perpetually, for the apparent trivial reason of merely saving him the need to carry an umbrella. The {{w|Water cycle|consequences}} of this drastic change to the weather (no matter by which method it is accomplished) would plainly be very bad.{{Citation needed}} As Black Hat almost certainly is fully aware. The genie realizes that there is very little 'good' idea for him to twist into a bad one, and that Black Hat will be peculiarly unreceptive to being 'taught a moral lesson'. Especially compared to the utter devastation that the granted wish ''will'' cause to the rest of the non-wishing world, which the genie might be reluctant to enact. &lt;br /&gt;
&lt;br /&gt;
Having persuaded his wisher to retract the original request, the genie now has to deal with two rather ''too'' open-ended requests. Exactly what Black Hat &amp;quot;deserves&amp;quot; is possibly subjective; and perhaps would often be not very charitable, given how most people's usual interactions with him pan out. But the genie, at this point, still seems to have enough latent sympathy to lampshade the trouble being invited, presuming that it was a particularly unintended turn of phrase. Undaunted, the next version of the revised wish invokes an even more perilous wording. The suggestion of &amp;quot;what's coming to&amp;quot; someone is frequently used as a threat (or menacing promise) of violence. Taken literally, though, it would either be meaningless (Black Hat would receive whatever fate would have befallen him without the wish, and the genie would have effected no change), or it would be tautologous (whatever is coming to him is whatever the result of the wish is, so how is the genie to decide what that should be?). These interpretations seem to dishearten the genie even more, given his apparent obligation to be inconveniently literal in such matters.&lt;br /&gt;
&lt;br /&gt;
Clearly outclassed in his attempt to establish his ability to cause problems, he gets frustrated and backtracks rapidly. He offers just $20 (a token amount of money, possibly out of his own pocket in order to completely avoid using his potentially dangerous magical abilities) to get himself out of the original formulaic deal and permanently away from having to be under Black Hat's influence.&lt;br /&gt;
&lt;br /&gt;
In the title text, the wisher (possibly still Black Hat, or possibly just another rather awkward individual) wishes for everything in the world. This is itself a not unknown &amp;quot;bad wish&amp;quot; that would be creatively twisted into a bad consequence for the necessary narrative reasons (for example, ownership of everything in the world might come with inconvenient or even impossible responsibilities). The wish continues, however, and explicitly asks that all of this be put into their house. This is impossible for two reasons: First, everything wouldn't fit in their house;{{citation needed}} second, it causes an infinite regression, since their house is something in the world, so it would have to be put inside itself. Trying to grant this wish would likely also frustrate the genie, and certainly not allow them their usual scope of a personal (and proportional) educational twist.&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
{{incomplete transcript|Feel free to improve it or add more details. Do NOT delete this tag too soon.}}&lt;br /&gt;
&lt;br /&gt;
:[Black Hat is holding a genie lamp in his hands. A genie has appeared from the end of the lamp. The genie is depicted as a turbanless Cueball-like figure floating without a lower body, having a puff of smoke in place of his legs.]&lt;br /&gt;
:Genie: I will grant you one wish.&lt;br /&gt;
:Genie: But beware, for I will twist the meaning of your words to teach you a lesson!&lt;br /&gt;
&lt;br /&gt;
:[Black Hat holds the lamp to his side. The genie has his arms crossed.] &lt;br /&gt;
:Black Hat: Gotcha! Hmm.&lt;br /&gt;
:Black Hat: I'm tired of carrying an umbrella. I wish it never rained again.&lt;br /&gt;
&lt;br /&gt;
:[Close-up on the genie.]&lt;br /&gt;
:Genie: ...Okay.&lt;br /&gt;
:Genie: I'm supposed to twist your words to teach you a lesson, but that actually sounds very straightforwardly bad.&lt;br /&gt;
:Genie: Can you maybe try again?&lt;br /&gt;
&lt;br /&gt;
:[Zoom back to Black Hat and the genie.]&lt;br /&gt;
:Black Hat: Fine. Just give me what I deserve.&lt;br /&gt;
:Genie: Oh my god. Have you read '''''any''''' stories about wishes?&lt;br /&gt;
:Black Hat: Come on! I want to get what's coming to me.&lt;br /&gt;
:Genie: Listen, I'm just gonna give you $20 and call this even.&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
&lt;br /&gt;
[[Category:Comics featuring Black Hat]]&lt;br /&gt;
[[Category:Genie]]&lt;/div&gt;</summary>
		<author><name>NotaBene</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2243:_Star_Wars_Spoiler_Generator&amp;diff=305168</id>
		<title>2243: Star Wars Spoiler Generator</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2243:_Star_Wars_Spoiler_Generator&amp;diff=305168"/>
				<updated>2023-01-24T03:02:33Z</updated>
		
		<summary type="html">&lt;p&gt;NotaBene: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 2243&lt;br /&gt;
| date      = December 18, 2019&lt;br /&gt;
| title     = Star Wars Spoiler Generator&lt;br /&gt;
| image     = star wars spoiler generator.png&lt;br /&gt;
| titletext = The heroes seem to be gaining the upper hand until Darth Juul manages to flip the switch on the car wash control panel from 'REGULAR' to 'PREMIUM.'&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
On December 20, 2019 (2 days after the publication of this comic), the final movie of the &amp;quot;Skywalker saga&amp;quot; of ''Star Wars'' films, ''{{w|Star Wars: The Rise of Skywalker}}'', was officially released to the US. It received a world premiere in Los Angeles on December 16, so there are lots of spoilers online, and also lots of people who want to avoid spoilers.  [[Randall]] has created a flowchart that generates &amp;quot;spoilers&amp;quot; to the film, but as he probably has not seen the film (or, if he has, he doesn't actually want to spoil it for us), all of the so-called spoilers are nonsensical.&lt;br /&gt;
&lt;br /&gt;
The formula for each spoiler is as follows: &amp;quot;In this Star Wars movie, our heroes return to take on the First Order and new villain '''[villain name]''' with help from their new friend '''[friend name]'''. Rey builds a new lightsaber with a '''[color]''' blade, and they head out to confront the First Order's new superweapon, the '''[superweapon name]''', a space station capable of '''[evil plan]'''. They unexpectedly join forces with their old enemy '''[character]''' and destroy the superweapon in a battle featuring '''[strange event]'''. P.S. Rey's parents are '''[character]''' and '''[character]'''&amp;quot;.&lt;br /&gt;
&lt;br /&gt;
The {{w|First Order (Star Wars)|First Order}} is the main antagonist group in the ''Star Wars'' {{w|Star Wars sequel trilogy|sequel trilogy}} series. In ''{{w|Star Wars: The Force Awakens}}'', they use a superweapon in their base, Starkiller Base, to destroy the planetary system housing the headquarters of the {{w|New Republic (Star Wars)|New Republic}}, the democratic government which was formed after the {{w|Galactic Empire (Star Wars)|Empire}}'s defeat in ''{{w|Return of the Jedi}}''. &lt;br /&gt;
&lt;br /&gt;
&amp;quot;Building a {{w|lightsaber}}&amp;quot; is one of the rites of passage for becoming a {{w|Jedi}} Knight. In the {{w|Star Wars prequel trilogy|prequel trilogy}}, new Jedi build lightsabers as an official part of the journey towards Knighthood, and in the {{w|Star Wars Trilogy|original trilogy}}, {{w|Luke Skywalker}} builds a lightsaber between ''The Empire Strikes Back'' and ''Return of the Jedi'' as part of his training with {{w|Yoda}}.  {{w|Rey (Star Wars)|Rey}} has used the lightsaber that {{w|Darth Vader|Anakin Skywalker}} made and used (which Luke also used when he was a new Jedi) for the first two movies of the sequel trilogy, and so it would be thematically appropriate for her to build her own prior to the trilogy's final entry.  Most Jedi's lightsabers are either blue or green, with a few notable exceptions (e.g. {{w|Mace Windu}}'s purple lightsaber signifies his incredible combat prowess).  Kyber crystals are aligned with the Light Side of {{w|the Force}}, so {{w|Sith}} must overpower and &amp;quot;bleed&amp;quot; their crystals before they will function for them, which causes their distinctive red color.  Having a lightsaber of a color other than blue, green, or red is often seen in the ''Star Wars'' fandom as a sign of being a &amp;quot;{{tvtropes|MarySue|Mary Sue}}&amp;quot;, which is an accusation which has been made of Rey.{{Actual citation needed}}&lt;br /&gt;
&lt;br /&gt;
Another common plot point in ''Star Wars'' media is the construction, use, and destruction of a superweapon.  These are inspired by stories and media of World War II, in which militaries rapidly developed novel technologies and weapons (including {{w|Wunderwaffe|&amp;quot;wonder-weapons&amp;quot;}}).  Meanwhile, they launched massive operations to find, attack, and destroy critical elements of their enemies' resources and infrastructure, and constructed elaborate defenses for their own.  The attack on the {{w|Death Star}} in particular is inspired by {{w|Operation Chastise}}, the &amp;quot;bouncing bomb&amp;quot; attack on Germany's hydroelectric power plants; Operation Chastise was dramatised in the {{w|The Dam Busters (book)|1951 book}} and {{w|The Dam Busters (film)|1955 film}} ''The Dam Busters'', which was [https://www.youtube.com/watch?v=lNdb03Hw18M very thoroughly homaged] by ''A New Hope''.  The original trilogy of movies only had two Death Stars, but superweapons quickly became a staple of the {{w|Star Wars expanded to other media|Expanded Universe}} fiction, to the point that one book had {{w|Han Solo}} make fun of the Empire's tendency towards building superweapons, proposing such ridiculous names as &amp;quot;Galaxy Destructor&amp;quot; and &amp;quot;Nostril of Palpatine&amp;quot;.  Superweapons are also common in superhero stories.&lt;br /&gt;
&lt;br /&gt;
Redemption and making allies of old enemies is also a common plot point in ''Star Wars''.  Anakin Skywalker fell to the Dark Side and became Darth Vader, but eventually returned to the Light Side to protect his son, and Han Solo was initially a morally ambiguous character who was eventually convinced to join the Rebellion.&lt;br /&gt;
&lt;br /&gt;
Rey, one of the main characters in the sequel trilogy series is an orphan, who was left behind on the planet Jakku as a child. As Rey is Force-sensitive and adept at using a lightsaber, there is much speculation among Star Wars fans as to the identity of her parents. Many major characters in ''Star Wars'' have unexpected heritages of great portent, most famously Luke, who was very distressed to learn that Darth Vader did not ''kill'' his father, as Obi-Wan had told him, but ''is'' his father. In ''{{w|Star Wars: The Last Jedi}}'', villain {{w|Kylo Ren}} tells her that she is the child of &amp;quot;filthy junk traders&amp;quot;, but many fans speculate that he was lying to her.&lt;br /&gt;
&lt;br /&gt;
The title text refers to the bottom option of the [strange event in battle] section. Apparently Lord Juul (or Darth Juul) is fighting the heroes in the Sith car wash. It is unclear what &amp;quot;flipping the switch&amp;quot; from Regular to Premium would do, but it seems to be beneficial to Darth Juul. A &amp;quot;premium&amp;quot; car wash usually has more features than a regular car wash, e.g. more cleaning brushes, waxing the car, cleaning the tires, etc., so perhaps the premium mode activates additional lightsabers.&lt;br /&gt;
&lt;br /&gt;
This is the second false fact generating comic, after [[1930: Calendar Facts]].&lt;br /&gt;
&lt;br /&gt;
==Table==&lt;br /&gt;
{| class=&amp;quot;wikitable&amp;quot;&lt;br /&gt;
! Entry&lt;br /&gt;
! Explanation&lt;br /&gt;
|-&lt;br /&gt;
! colspan=&amp;quot;2&amp;quot; | New villain&lt;br /&gt;
|-&lt;br /&gt;
| Kyle Ren&lt;br /&gt;
| Kyle Ren is one letter away from {{w|Kylo Ren|''Kylo'' Ren}}, the adopted &amp;quot;Sith name&amp;quot; of Ben Solo, son of Han and Leia Solo.  Kylo is one of the antagonists of the first two movies in the sequel trilogy, and presumably will be so in the third, but there's nobody in the films named &amp;quot;Kyle&amp;quot;.  (There are a handful of ''Legends'' characters named Kyle, most famously Kyle Katarn, protagonist of the ''Star Wars: Jedi Knight'' video game series.)&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Malloc}}&lt;br /&gt;
| Malloc is a function used in the C programming language to '''alloc'''ate more '''m'''emory in the running of a program. Malloc may sound similar to {{w|Darth Malak|Malak}}, the antagonist of the ''{{w|Star Wars: Knights of the Old Republic}}'' video game. Improper use of the malloc and free functions can cause &amp;quot;memory leak&amp;quot; bugs in programs.&lt;br /&gt;
|-&lt;br /&gt;
| Darth Sebelius&lt;br /&gt;
| {{w|Sebelius}} is the last name of several people. &lt;br /&gt;
* {{w|Kathleen Sebelius}} is a former state representative and governor of Kansas who was Secretary of the Department of Health and Human Services under President Obama. Sebelius was the named party in a {{w|National Federation of Independent Business v. Sebelius|Supreme Court case}} that upheld the provisions of the {{w|Affordable Care Act}} (&amp;quot;Obamacare&amp;quot;). The naming of Sebelius as a villain may reference the fact that the ACA has been controversial among certain groups. &lt;br /&gt;
* {{w|Jean Sibelius}} is a renowned Finnish composer. {{w|Sibelius (scorewriter)|Sibelius}} is also the name of a piece of music software.&lt;br /&gt;
Randall may have chosen this surname as it sounds similar to {{w|Darth Sidious}}, the overarching villain in the first 6 Star Wars films, who is rumored to return in the upcoming film. &lt;br /&gt;
|-&lt;br /&gt;
| {{w|Theranos}}&lt;br /&gt;
| Theranos was a medical technology company founded by {{w|Elizabeth Holmes}} which claimed to have developed revolutionary blood tests that could produce more data from limited volumes of blood than ever before.  They were eventually found to have engaged in fraudulent activity, having tricked investors into thinking their technology was performing better than it actually was or ever could, which resulted in fines for Holmes and Theranos president {{w|Ramesh Balwani}} and the bankruptcy of Theranos. Theranos also sounds similar to {{w|Thanos}}, the main villain of the Infinity Saga in the Marvel Cinematic Universe.&lt;br /&gt;
|-&lt;br /&gt;
| Lord Juul&lt;br /&gt;
| {{w|Juul}} is a brand of e-cigarettes. In addition to the broader controversy surrounding electronic cigarettes, Juul has been investigated for its sale of flavored additives for their cigarettes, which are alleged to be particularly attractive to minors. Juul is reminiscent of the &amp;quot;uu&amp;quot; in the names for clones {{w|Joruus C'baoth}} and {{w|Luuke Skywalker}} in {{w|Star Wars Legends|''Star Wars'' Legends}} stories, thus implying Lord Juul is a clone of a character named Jul. ''{{w|Yule|Jul}}'' is the Scandinavian name for the midwinter holidays, which fits as the comic appeared within the Yule season of 2019.&lt;br /&gt;
|-&lt;br /&gt;
! colspan=&amp;quot;2&amp;quot; | New friend&lt;br /&gt;
|-&lt;br /&gt;
| Kim Spacemeasurer&lt;br /&gt;
| May be a parody of the name {{w|Luke Skywalker}}, one of the main characters in the original trilogy of films.  Other &amp;quot;Nounverber&amp;quot; names in ''Star Wars'' include Starkiller, Luke's original last name which was later applied to Starkiller Base in ''The Force Awakens'', and Biggs Darklighter, Luke's childhood friend and fellow Rebel pilot who died in the attack on the original Death Star. Also note another Star Wars comic posted a few weeks before this one, [[2229: Rey and Kylo]], which shows those characters actually deciding to measure properties of space.&lt;br /&gt;
|-&lt;br /&gt;
| Teen Yoda&lt;br /&gt;
| {{w|The Child (Star Wars character)|The Child}}, commonly called &amp;quot;Baby Yoda&amp;quot; by fans and the media, is a breakout character from the Disney+ series ''{{w|The Mandalorian}}''. Randall envisions a &amp;quot;teenage&amp;quot; version of this character teaming up with the main characters. This may be in analogy to Groot in the Marvel Cinematic Universe, who appeared as an adult, then child, then teen, or other adaptations of original characters like the Teen Titans.&lt;br /&gt;
|-&lt;br /&gt;
| Dab Tweetdeck&lt;br /&gt;
| A {{w|Dab (dance)|dab}} is a dance move which is many decades old but was made popular by that name in the late 2010's.  {{w|TweetDeck}} is an application for managing Twitter accounts.  Taken together, &amp;quot;Dab Tweetdeck&amp;quot; could be a character name proposed by clueless Disney executives to attract &amp;quot;the kids&amp;quot; to see ''The Rise of Skywalker'', although one would think that this name would be heavily promoted and thus not a spoiler in that case.&lt;br /&gt;
Tweetdeck sounds similar to twi'lek, one of the humanoid alien races in Star Wars, who often are employed as dancers.&lt;br /&gt;
|-&lt;br /&gt;
| Yaz Progestin&lt;br /&gt;
| Yaz sounds like the first name of {{w|Maz Kanata}}, a supporting protagonist in the sequel trilogy.  Yaz is a medication which contains {{w|Progestin}}, which imitates the effects of {{w|progesterone}}, a female sex hormone.  It is used for purposes including birth control and acne treatment.&lt;br /&gt;
|-&lt;br /&gt;
| TI-83&lt;br /&gt;
| Droids in the Star Wars universe typically have names with letters and numbers, such as R2-D2, C-3PO, BB-8, etc. Randall has created a new character called &amp;quot;TI-83&amp;quot;. In real life, the {{w|TI-83}} is a model of graphing calculator manufactured by {{w|Texas Instruments}} that is commonly used in American high schools.  This mirrors the origin of the name &amp;quot;R2-D2&amp;quot;, which was inspired when Lucas was working on ''{{w|American Graffiti}}'' and was asked for Reel 2, Dialog Track 2, which was abbreviated &amp;quot;R-2-D-2&amp;quot;.  He remarked that it would be a &amp;quot;great name&amp;quot; and included it in his then-in-development script for ''Star Wars''.&lt;br /&gt;
|-&lt;br /&gt;
! colspan=&amp;quot;2&amp;quot; | Lightsaber colors&lt;br /&gt;
|-&lt;br /&gt;
| [beige/ochre/mauve/aquamarine/taupe]&lt;br /&gt;
| These are different colors, none of which is a &amp;quot;traditional&amp;quot; color for a lightsaber. {{w|Beige}} is a pale-grayish yellow. {{w|Ochre}} is a clay earth pigment ranging from yellow to deep orange or brown. {{w|Mauve}} is a pale purple color. A purple color has been used for a lightsaber in the prequel trilogy series, by Jedi Master {{w|Mace Windu}}. {{w|Aquamarine (color)|Aquamarine}} is a blueish green color. {{w|Taupe}} is a dark brown color between brown and gray.&lt;br /&gt;
|-&lt;br /&gt;
! colspan=&amp;quot;2&amp;quot; | Superweapon names&lt;br /&gt;
|-&lt;br /&gt;
| Sun Obliterator&lt;br /&gt;
| There was an Expanded Universe superweapon called the &amp;quot;Sun Crusher&amp;quot;, which would infiltrate a star system and shoot a special torpedo into the star to make it go supernova. May also be a reference to one of the doodles from What If?.&lt;br /&gt;
|-&lt;br /&gt;
| Moonsquisher&lt;br /&gt;
| There were no ''Star Wars'' superweapons with the word &amp;quot;Moon&amp;quot; in their title (or &amp;quot;squisher&amp;quot;), but in the no-longer-canon ''New Jedi Order'' series, Chewbacca was squished ''by'' a moon that was intentionally de-orbited by invading Yuuzhan Vong.&lt;br /&gt;
|-&lt;br /&gt;
| World Eater&lt;br /&gt;
| Possibly a reference to {{w|Alduin}}, the main villain of the popular game {{w|The Elder Scrolls V: Skyrim}}.  In the Expanded Universe, the Empire used World Devastators, massive machines that would strip-mine planets with tractor beams and make weapons and spacecraft from the extracted resources.  Another possible reference is to the {{w|The Doomsday Machine (Star_Trek: The Original Series)|Planet Eater}} doomsday machine from the original Star Trek series. A further possible reference is to the World Eaters space marine legion from {{w|Warhammer 40,000}} franchise. Or a world eater redstone contraption from Minecraft. Or the boss for the Corruption biome in Terraria. Or Jörmungandr. There are a lot of things that this could be referring to.&lt;br /&gt;
|-&lt;br /&gt;
| Planet Zester&lt;br /&gt;
| A {{w|zester}} is a cooking tool for zesting citrus fruit, that is, scraping off the outer layer of a citrus fruit to obtain the flavorful outer layer of its skin.  Zesting a planet would be devastating to anything built or living on its surface.&lt;br /&gt;
|-&lt;br /&gt;
| Superconducting supercollider&lt;br /&gt;
| A {{w|supercollider}}, or particle accelerator, is a machine used to accelerate charged particles to very high speeds, for testing in particle physics. The {{w|Superconducting Super Collider}} was a proposed accelerator which was to be constructed in Texas, but was cancelled partway through construction.  There has been some minor controversy over the {{w|safety of high-energy particle collision experiments}}, which could theoretically produce black holes, {{w|strangelets}}, or other doomsday scenarios, but all scientific examination of the energies involved has shown that all currently-existing and planned particle accelerators pose no threats.  So far, the Earth has not been destroyed by any particle accelerator.{{Citation needed}}&lt;br /&gt;
|-&lt;br /&gt;
! colspan=&amp;quot;2&amp;quot; |  Station capabilities&lt;br /&gt;
|-&lt;br /&gt;
| blowing up a planet with a bunch of beams of energy that combine into one&lt;br /&gt;
| This is how the {{w|Death Star}} was depicted in ''{{w|Star Wars: A New Hope}}''. Many beams converged together to form one energy beam. The superweapon was used to destroy the planet Alderaan, as a way to intimidate Princess Leia.&lt;br /&gt;
|-&lt;br /&gt;
| blowing up a bunch of planets with one beam of energy that splits into many&lt;br /&gt;
| This is how the superweapon on Starkiller Base was depicted in ''{{w|Star Wars: The Force Awakens}}''. A single energy beam split into several beams, allowing it to attack many planets. The superweapon was used to destroy the planets in the Hosnian system, the headquarters of the New Republic.&lt;br /&gt;
|-&lt;br /&gt;
| cutting a planet in half and smashing the halves together like two cymbals&lt;br /&gt;
| Jango Fett's &amp;quot;seismic charge&amp;quot; weapon, which he used in a dogfight against Obi-Wan Kenobi in ''Attack of the Clones'', produced a plane wave that cut asteroids in half; presumably a larger weapon of this kind could do the same to a planet.&lt;br /&gt;
|-&lt;br /&gt;
| increasing the CO&amp;lt;sub&amp;gt;2&amp;lt;/sub&amp;gt; levels in a planet's atmosphere, causing rapid heating&lt;br /&gt;
| This is a reference to {{w|climate change}} currently occurring on planet Earth.  The {{w|Scientific consensus on climate change|overwhelming consensus among climate scientists}} is that this is that this shift is caused by human factors, such as the burning of fossil fuels releasing ancient carbon sources into the air as carbon dioxide, and mass deforestation reducing the number of trees converting the carbon dioxide into sugars and cellulose.  Climate change has been addressed repeatedly by the comic before, including [[164: Playing Devil's Advocate to Win]], [[1321: Cold]], [[1379: 4.5 Degrees]], and [[1732: Earth Temperature Timeline]].&lt;br /&gt;
This seems to have occurred on the planet {{w|Venus}}. Venus' atmosphere is 97% carbon dioxide, and it is also the hottest planet in the Solar System, due to a greenhouse effect, preventing the planet from cooling.&lt;br /&gt;
|-&lt;br /&gt;
| triggering the end credits before the movie is done&lt;br /&gt;
| The {{w|closing credits}} or end credits of a film is the list of cast and crew who were involved in the making of the film. It would be quite strange to show the end credits of the film before it has concluded, although it is one of the {{tvtropes|CreditsGag|types of credits gag}} used in other media. This entry is considerably less damaging to a planet{{Citation needed}} than the other 4 entries in this section, but if early audiences are left unsatisfied by the movie, they might tell everyone else not to see it, which would put the ''Star Wars'' franchise in a perilous financial situation.  This would negatively impact the villains as well as the heroes, but they might consider this a worthwhile trade if it is their best option at harming the heroes. This option may be a reference to exploiting a glitch to trigger a [https://youtu.be/Jf9i7MjViCE credit warp] in games such as Super Mario World. This may also be a reference to the Netflix interactive movie &amp;quot;Bandersnatch&amp;quot; in which certain choices triggered the end of the movie and caused it to start the credits.&lt;br /&gt;
|-&lt;br /&gt;
! colspan=&amp;quot;2&amp;quot; | Old enemy/new friend&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Boba Fett}}&lt;br /&gt;
| Boba Fett is a famous bounty hunter introduced in the ''{{w|Star Wars Holiday Special}}'' and made popular by ''{{w|The Empire Strikes Back}}''.  On the Empire's orders, he helped capture Han Solo as part of a plot to capture Luke Skywalker. He later tried to prevent Luke from rescuing Han, but was knocked into a sarlacc pit, where he was presumed eaten.  In the Expanded Universe, he survived and did eventually join the protagonists against extragalactic invaders; his survival has not been confirmed by Disney's new canon, but he would be a plausible character to bring back in ''The Rise of Skywalker''. A Mandalorian (not Boba Fett, but a bounty hunter using body-armour &amp;lt;!-- Boba was 'born' on the ocean-world of Kamino, being an unaccelerated clone of Jango; maybe Jango was and maybe The Mandalorian was from the desert-planet of Mandalore, but that is beyond my inherit knowledge of canon, so right now I'll make this change and let someone else who cares enough about it and has seen Disney+ refine this further--&amp;gt; from the same planet) is featured in the new Disney+ series, ''The Mandalorian''.&lt;br /&gt;
|-&lt;br /&gt;
| [[wikia:w:c:starwars:Salacious B. Crumb|Salacious Crumb]]&lt;br /&gt;
| Salacious B. Crumb is a Kowakian monkey-lizard who was Jabba the Hutt's jester.  He wasn't exactly a major adversary, but he did pull one of C-3PO's eyes out.  He was last seen on Jabba the Hutt's sail barge, which was made to explode after Han, Luke, and the rest of the heroes escaped from it, and is presumed dead.&lt;br /&gt;
|-&lt;br /&gt;
| [[wikia:w:c:starwars:Exogorth|The Space Slug]]&lt;br /&gt;
| In ''The Empire Strikes Back'', Han Solo pilots the Millennium Falcon into a giant cave to evade pursuit and get time to effect repairs.  He is interrupted when the cave turns out to be the mouth of a giant space slug, which the Falcon barely escapes.  A giant space slug might be a powerful ally in a battle against a giant space station.&lt;br /&gt;
|-&lt;br /&gt;
| The bottom half of {{w|Darth Maul}}&lt;br /&gt;
| Darth Maul was cut in half by Obi-Wan Kenobi at the end of ''The Phantom Menace''.  His &amp;quot;upper half&amp;quot;, attached to mechanical legs, has returned as a villain in the ''Clone Wars'' TV series and ''{{w|Solo: A Star Wars Story|Solo}}''.  Given that Maul was a Sith and Kenobi a Jedi, who trained Luke, who trained Rey, it would be extremely unexpected for his &amp;quot;bottom half&amp;quot; to join forces with the heroes, although presumably his bottom half would have to be attached to something, which might be better disposed towards Jedi.&lt;br /&gt;
If Darth Maul's bottom half did join the heroes, they might aid the heroes by using [[wikia:w:c:starwars:Force kick|force kicks]].&lt;br /&gt;
|-&lt;br /&gt;
| YouTube commenters&lt;br /&gt;
| The sequel trilogy has received more mixed reviews from watchers than Disney might like, and many vocal non-fans have taken to commenting on YouTube (via videos and comments) on what they don't like about the new movies and new characters.  If ''The Rise of Skywalker'' fully wins the crowd, an alliance between the heroes and their former critics would be extremely powerful, but with Rotten Tomatoes showing a critics' aggregate score of [https://www.rottentomatoes.com/m/star_wars_the_rise_of_skywalker/ less than 60%] (&amp;quot;rotten&amp;quot;), it's going to be an uphill battle.&lt;br /&gt;
|-&lt;br /&gt;
! colspan=&amp;quot;2&amp;quot; | Battle feature&lt;br /&gt;
|-&lt;br /&gt;
| a bow that shoots little lightsaber-headed arrows&lt;br /&gt;
| May be a reference to the [[wikia:w:c:starwars:Bowcaster|bowcaster]], a laser crossbow weapon used by the Wookie {{w|Chewbacca}}. It is unclear if the lightsaber-headed arrows are actually lightsabers in itself, as they would seem difficult to produce (as opposed to the Death Star, or even a bunch of sword versions of the arrow).&lt;br /&gt;
|-&lt;br /&gt;
| X-Wings and TIE fighters dodging the giant letters of the opening crawl&lt;br /&gt;
| The {{w|Star Wars opening crawl|&amp;quot;opening crawl&amp;quot;}} is a signature motif used in all the main Star Wars films, to explain the backstory and context of each film. {{w|X-Wing}}s and {{w|TIE fighter}}s are fighter-type spaceships used by the Rebels (and Resistance later on) and the Empire (and First Order), respectively. A dogfight scene during the opening crawl would involve {{w|Fourth wall|breaking the fourth wall}}, as the opening crawl is not presumed to be part of the universe of the films (except when so parodied, such as in {{w|Airplane II: The Sequel}}).&lt;br /&gt;
|-&lt;br /&gt;
| a Sith educational display that uses Force lightning to demonstrate the dielectric breakdown of air&lt;br /&gt;
| [[wikia:w:c:starwars:Force lightning|Force lightning]] is a power that Force users can use to generate electric energy from the user's hands. It was first used in ''Return of the Jedi'' by Emperor Palpatine (Darth Sidious) when Luke Skywalker refuses to give in to the dark side of the Force. Palpatine attempts to kill Luke with Force lightning, but Darth Vader saves Luke by throwing Palpatine down a reactor chute.  Palpatine also used Force Lightning on Mace Windu and Yoda during their battles at the end of ''Revenge of the Sith''.  None of these uses of Sith lightning were intended to be educational on the nature of {{w|lightning}}, although they could have been very educational on the pain, cruelty, and &amp;quot;unlimited power!&amp;quot; offered by the Dark Side of the Force. This might also be a reference to [[wikia:w:c:starwars:Sith holocron|Sith holocron]] — a device to store Force-related information and secrets, possibly. Possibly also a reference to [[2229: Rey and Kylo]] &lt;br /&gt;
|-&lt;br /&gt;
| Kylo Ren putting on another helmet over his smaller one&lt;br /&gt;
| Kylo Ren is famous for wearing his helmet in ''The Force Awakens'', which he styled after Darth Vader's helmet.  Putting on another helmet over it would require a comically large helmet that might be compared to Dark Helmet, a character from the parody film ''{{w|Spaceballs}}'' who parodies Darth Vader.&lt;br /&gt;
|-&lt;br /&gt;
| a Sith car wash where the bristles on the brushes are little lightsabers&lt;br /&gt;
| This may be a reference to some reactions to Kylo Ren's &amp;quot;lightcrossguards&amp;quot;.  In-universe, his lightsaber is said to contain a Kyber crystal of unusual power and instability, which produces excess energy that must be vented through side channels.  However, many watchers found it ridiculous to present a lightsaber that appeared to have little lightsabers sticking out of it, and produced [https://knowyourmeme.com/memes/crossguard-lightsaber fanart] accordingly.&lt;br /&gt;
While an unexpected car wash finale scene seems unlikely, it is not without precedent in cinema; ''{{w|Adolescence of Utena}}'' featured the title character unexpectedly entering a car wash and transforming into a car (followed by a segue into a car race sequence). &lt;br /&gt;
George Lucas, the originator of Star Wars also wrote the movie &amp;quot;American Graffiti,&amp;quot; which featured cars prominently.  A subsequent movie &amp;quot;Car Wash,&amp;quot; has been seen as a commentary on or imitation of &amp;quot;American Graffiti.&amp;quot;  Including a Sith car wash might reference the relation between these two films.[https://www.nytimes.com/2019/01/25/movies/streaming-car-wash.html ‘Car Wash,’ a Raunchy 1970s Comedy Brimming With Meta and Mayhem].&lt;br /&gt;
|-&lt;br /&gt;
! colspan=&amp;quot;2&amp;quot; | Rey's parent #1&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Luke Skywalker|Luke}} &lt;br /&gt;
| Luke Skywalker is the main character of the original Star Wars films.  Of all of the characters presented here, he is the one with the greatest likelihood of being Rey's father.  When Maz gave Rey Luke's lightsaber, she said &amp;quot;[t]hat lightsaber was Luke's, and his father's before him, and now, it calls to you.&amp;quot;  Luke does not seem to recognize Rey as his child (or as anybody in particular), but Darth Vader did not recognize Luke or Leia as his children -- and indeed did not know that he had any living children -- until they were grown.  However, unlike Anakin Skywalker, or the Luke Skywalker from the pre-Disney Expanded Universe, no canon materials have presented anyone with whom Luke has fallen in love or fathered a child.&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Princess Leia|Leia}} and {{w|Han Solo|Han}}&lt;br /&gt;
| Princess Leia and Han Solo are the other main characters of the original Star Wars films. It is unlikely that Leia or Han are Rey's parents as they did not seem to recognize Rey in any of the sequel trilogy films, nor is there any indication that they have had more than one child (Ben Solo, AKA Kylo Ren).&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Obi-Wan Kenobi|Obi-Wan}}&lt;br /&gt;
| Obi-Wan Kenobi was one of the main characters in the Star Wars prequel trilogy. He, along with Qui-Gon Jinn, discovered Anakin Skywalker, who later became Darth Vader. Kenobi dies at the second act of ''Star Wars: A New Hope'', sacrificing himself to allow Luke, Leia, and Han to escape the Death Star.  Marriage and parenthood were forbidden by the Jedi Order, and Obi-Wan generally adhered to the Order's rules more closely than Anakin did; Obi-Wan did feel some mutual romantic attraction with Duchess Satine of Mandalore, but they both chose to remain in their respective organizations rather than pursue a relationship.  Also, Obi-Wan stopped having a physical form decade before Rey was conceived.&lt;br /&gt;
|-&lt;br /&gt;
| a random junk trader&lt;br /&gt;
| This is who Kylo Ren claims that Rey is descended from: worthless, random junk traders.&lt;br /&gt;
|-&lt;br /&gt;
! colspan=&amp;quot;2&amp;quot; | Rey's parent #2&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Poe Dameron|Poe}}&lt;br /&gt;
| Poe Dameron is one of the main characters of the Star Wars sequel trilogy. He is a pilot in the Resistance.  He is only 13 years older than Rey, and thus is most likely not her father.&lt;br /&gt;
|-&lt;br /&gt;
| {{w|BB-8}}&lt;br /&gt;
| BB-8 is an astromech droid owned by Poe Dameron. It is unlikely that Rey is descended from a (non-living) droid.&lt;br /&gt;
|-&lt;br /&gt;
| [ {{w|Amilyn Holdo}} /{{w|Laura Dern}}]&lt;br /&gt;
| Vice Admiral Amilyn Holdo, portrayed by Laura Dern, was a leader in the Resistance. She dies at the end of ''The Last Jedi'', sacrificing herself by jumping to light speed straight into the First Order's pursuing starship.  Randall presents both Admiral Holdo, the character, and Laura Dern, the actress, as separate options for Rey's mother, but the former is not supported by any story material and the latter is impossible (Dern is alive here and now, not &amp;quot;a long time ago in a galaxy far, far away&amp;quot;).&lt;br /&gt;
|-&lt;br /&gt;
| a random junk trader&lt;br /&gt;
| (see above)&lt;br /&gt;
|-&lt;br /&gt;
| that one droid from the Jawa Sandcrawler that says ''Gonk''&lt;br /&gt;
| This is [[wikia:w:c:starwars:GNK power droid|a droid]] from ''Star Wars: A New Hope'' that says &amp;quot;Gonk&amp;quot;. As in the BB-8 entry, it is unlikely that Rey is descended from a droid.&lt;br /&gt;
|-&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
:&amp;lt;big&amp;gt;Star Wars Spoiler Generator&amp;lt;/big&amp;gt;&lt;br /&gt;
&lt;br /&gt;
:[Shown below is a branching flowchart of sorts that begins at the phrase &amp;quot;In this Star Wars movie, our heroes return to take on the First Order and new villain...&amp;quot;, then flows through various paths to build up a story.]&lt;br /&gt;
&lt;br /&gt;
:In this Star Wars movie, our heroes return to take on the First Order and new villain...&lt;br /&gt;
::Kyle Ren&lt;br /&gt;
::Malloc&lt;br /&gt;
::Darth Sebelius&lt;br /&gt;
::Theranos&lt;br /&gt;
::Lord Juul&lt;br /&gt;
&lt;br /&gt;
:...with help from their new friend...&lt;br /&gt;
::Kim Spacemeasurer&lt;br /&gt;
::Teen Yoda&lt;br /&gt;
::Dab Tweetdeck&lt;br /&gt;
::Yaz Progestin&lt;br /&gt;
::TI-83&lt;br /&gt;
&lt;br /&gt;
:Rey builds a new lightsaber with a...&lt;br /&gt;
::beige&lt;br /&gt;
::ochre&lt;br /&gt;
::mauve&lt;br /&gt;
::aquamarine&lt;br /&gt;
::taupe&lt;br /&gt;
&lt;br /&gt;
:...blade, and they head out to confront the First Order's new superweapon, the...&lt;br /&gt;
::Sun Obliterator&lt;br /&gt;
::Moonsquisher&lt;br /&gt;
::World Eater&lt;br /&gt;
::Planet Zester&lt;br /&gt;
::Superconducting Supercollider&lt;br /&gt;
&lt;br /&gt;
:...a space station capable of...&lt;br /&gt;
::blowing up a planet with a bunch of beams of energy that combine into one&lt;br /&gt;
::blowing up a bunch of planets with one beam of energy that splits into many&lt;br /&gt;
::cutting a planet in half and smashing the halves together like two cymbals&lt;br /&gt;
::increasing the CO&amp;lt;sub&amp;gt;2&amp;lt;/sub&amp;gt; levels in a planet's atmosphere, causing rapid heating&lt;br /&gt;
::triggering the end credits before the movie is done&lt;br /&gt;
&lt;br /&gt;
:They unexpectedly join forces with their old enemy...&lt;br /&gt;
::Boba Fett&lt;br /&gt;
::Salacious Crumb&lt;br /&gt;
::The Space Slug&lt;br /&gt;
::the bottom half of Darth Maul&lt;br /&gt;
::Youtube commenters&lt;br /&gt;
&lt;br /&gt;
:...and destroy the superweapon in a battle featuring&lt;br /&gt;
::a bow that shoots little lightsaber-headed arrows&lt;br /&gt;
::X-Wings and TIE fighters dodging the giant letters of the opening crawl&lt;br /&gt;
::a Sith educational display that uses Force Lightning to demonstrate the dielectric breakdown of air&lt;br /&gt;
::Kylo Ren putting on another helmet over his smaller one&lt;br /&gt;
::a Sith car wash where the bristles on the brushes are little lightsabers&lt;br /&gt;
&lt;br /&gt;
:P.S. Rey's parents are...&lt;br /&gt;
::Luke&lt;br /&gt;
::Leia&lt;br /&gt;
::Han&lt;br /&gt;
::Obi-Wan&lt;br /&gt;
::a random junk trader&lt;br /&gt;
&lt;br /&gt;
:...and...&lt;br /&gt;
::Poe&lt;br /&gt;
::BB-8&lt;br /&gt;
::Amilyn Holdo&lt;br /&gt;
::Laura Dern&lt;br /&gt;
::a random junk trader&lt;br /&gt;
::that one droid from the Jawa Sandcrawler that says ''Gonk''&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
&amp;lt;!-- Include any categories below this line. --&amp;gt;&lt;br /&gt;
[[Category:Charts]]&lt;br /&gt;
[[Category:Star Wars]]&lt;br /&gt;
[[Category:Comics featuring real people]] &amp;lt;!-- Laura Dern --&amp;gt;&lt;br /&gt;
[[Category:Programming]] &amp;lt;!-- malloc --&amp;gt;&lt;/div&gt;</summary>
		<author><name>NotaBene</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2723:_Outdated_Periodic_Table&amp;diff=304556</id>
		<title>2723: Outdated Periodic Table</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2723:_Outdated_Periodic_Table&amp;diff=304556"/>
				<updated>2023-01-11T17:45:23Z</updated>
		
		<summary type="html">&lt;p&gt;NotaBene: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 2723&lt;br /&gt;
| date      = January 11, 2023&lt;br /&gt;
| title     = Outdated Periodic Table&lt;br /&gt;
| image     = outdated_periodic_table_2x.png&lt;br /&gt;
| imagesize = 360x350px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = Researchers claim to have synthesized six additional elements in the second row, temporarily named 'pentium' through 'unnilium'.&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
{{incomplete|Created HALF AN HOUR AFTER THE CREATION OF EXPLAINXKCD - Please change this comment when editing this page. Do NOT delete this tag too soon.}}&lt;br /&gt;
{{w|Chemical elements|Some elements}} do not occur naturally on earth and have to be {{w|Synthetic element|synthesized}}. Those elements are generally excluded from {{w|periodic table|the periodic table}} until they have been synthesized (and are no longer theoretical). At the beginning of the universe, the temperature, and thus the kinetic energy, was too high for matter to form big nuclei. It took some time (how long is not accurately defined) before parts of the universe had cooled down sufficiently for further elements to form naturally. In the first minutes after the big bang only hydrogen, deuterium, helium and lithium nuclei were present. If a scientific textbook had somehow been written at that time, it would be able to describe only a very few elements based on observations.&lt;br /&gt;
&lt;br /&gt;
The title text refers to how yet-undiscovered elements are given a {{w|Systematic element name|temporary name according to how many protons they have}}. Here the numbers are very low (&amp;quot;pentium&amp;quot; being based on &amp;quot;pent&amp;quot; which means &amp;quot;five&amp;quot;) because only four elements had been discovered at the time of publication.&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
{{incomplete transcript|Do NOT delete this tag too soon.}}&lt;br /&gt;
:Figure 6.14&lt;br /&gt;
:The periodic table of the elements&lt;br /&gt;
:H Hydrogen&lt;br /&gt;
:He Helium&lt;br /&gt;
:Li Lithium&lt;br /&gt;
:Be Beryllium&lt;br /&gt;
:You can spot an outdated science textbook by checking the bottom of the periodic table for missing elements. For example, mine was published half an hour after the Big Bang.&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;/div&gt;</summary>
		<author><name>NotaBene</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2714:_Cold_Complaints&amp;diff=303257</id>
		<title>2714: Cold Complaints</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2714:_Cold_Complaints&amp;diff=303257"/>
				<updated>2022-12-22T15:54:06Z</updated>
		
		<summary type="html">&lt;p&gt;NotaBene: /* Explanation */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 2714&lt;br /&gt;
| date      = December 21, 2022&lt;br /&gt;
| title     = Cold Complaints&lt;br /&gt;
| image     = cold_complaints.png&lt;br /&gt;
| imagesize = 740x254px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = Our investigation into whining-based remedies became the first study to be halted by the IRB on the grounds that the treatment group was 'too annoying.'&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
{{incomplete|Created by a GIGANTIC WHINING BABY - Do NOT delete this tag too soon.}}&lt;br /&gt;
&lt;br /&gt;
When people are ill, they will often complain about the symptoms that they're suffering from. A common sterotype is that men will revert to infantile behavior when miserably sick. This can be annoying to the people around them, but they typically tolerate such behavior out of compassion. The joke in this comic is that [[Hairy]] spoke via a {{w|telemedicine}} appointment to [[Ponytail]], a medical professional who explicitly advised him to act out, since his condition has no effective medical treatment. He takes her advice to, &amp;quot;act like you're the first person ever to have a cold,&amp;quot; literally, stating it specifically when his companion asks about it.  &lt;br /&gt;
&lt;br /&gt;
This comic was published during a &amp;quot;tripledemic&amp;quot; in the U.S., involving {{w|COVID-19}}, {{w|influenza}}, and {{w|respiratory syncytial virus}} (RSV, a frequent cause of common colds) infections, none of which have a cure, other than to wait them out with plenty of rest and fluids (provided that symptoms do not require hospitalization). It expounds on the finding that, &amp;quot;talking about troublesome events, including events with which one is dissatisfied, may ... result in improved physiological health.&amp;quot; (Kowalski, R.M. (2002) [http://people.uncw.edu/hakanr/documents/whining.pdf &amp;quot;Whining, griping, and complaining: positivity in the negativity&amp;quot;] ''Journal of Clinical Psychology'' '''58'''(9):1023-35.) &lt;br /&gt;
&lt;br /&gt;
The title text describes a similar study, but where the {{w|institutional review board}} (IRB) halted the study because the participants were too annoying. This is ironic since they were supposed to whine annoyingly for the sake of the experiment. IRBs are expected to review the ethics of a research project, with particular attention paid to the well-being of the subjects. Whining is not usually considered dangerous,{{citation needed}} but in this case it was presumably so intolerable to the Board (or perhaps the control group, who were presumably forbidden from whining while sick) that they had to put a stop to it.&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
{{incomplete transcript|Do NOT delete this tag too soon.}}&lt;br /&gt;
&lt;br /&gt;
:[Hairy sitting on a chair in front of a computer screen. There is an image of Ponytail on the screen speaking.]&lt;br /&gt;
:Ponytail: Well, it's not COVID or flu. Probably one of the other viruses.&lt;br /&gt;
:Hairy: Ughh&lt;br /&gt;
&lt;br /&gt;
:[A zoomed out version of the image, Ponytail cannot be seen]&lt;br /&gt;
:Ponytail: There's not much you can do to speed up recovery other than rest, hydrate, and whine and complain and be a gigantic baby about it. &lt;br /&gt;
&lt;br /&gt;
:[Same as previous panel]&lt;br /&gt;
:Hairy: Whine and complain?&lt;br /&gt;
:Ponytail: Yeah. You need to act like you're the first person ever to have a cold.&lt;br /&gt;
&lt;br /&gt;
:[Hairy lying on a couch wrapped in a blanket, with a lot of paper tissues around]&lt;br /&gt;
:Off-screen voice: Are you '''''sure''''' that's what she said?&lt;br /&gt;
:Hairy: Unbelievable. Here I am, the only person ever to feel bad, and you're '''''doubting''''' me?  &lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
[[Category:Comics featuring Hairy]]&lt;br /&gt;
[[Category:Doctor Ponytail]]&lt;br /&gt;
[[Category:Medicine]]&lt;br /&gt;
[[Category:COVID-19]]&lt;/div&gt;</summary>
		<author><name>NotaBene</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2709:_Solar_System_Model&amp;diff=301040</id>
		<title>2709: Solar System Model</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2709:_Solar_System_Model&amp;diff=301040"/>
				<updated>2022-12-10T23:42:12Z</updated>
		
		<summary type="html">&lt;p&gt;NotaBene: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 2709&lt;br /&gt;
| date      = December 9, 2022&lt;br /&gt;
| title     = Solar System Model&lt;br /&gt;
| image     = solar_system_model_2x.png&lt;br /&gt;
| imagesize = 270x370px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = The Earth is, on average, located in the habitable zone, but at any given time it has a certain probability of being outside it, which is why life exists on Earth but is mortal.&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
{{incomplete|Created by a DETERMINED ELECTRON - Please change this comment when editing this page. Do NOT delete this tag too soon.}}&lt;br /&gt;
This comic parodies the analogy of {{w|Bohr model|early-20th century models of atomic structure}} to the structure of the solar system. Electrons were thought to be orbiting the nucleus &amp;quot;like planets around a sun&amp;quot; until it was discovered that their locations are probabilistic. The comic flips this on its head: instead of the atomic structure model lacking a known causal relationship, it is now the planetary system that is quantum mechanical in nature, split into probabilistic {{w|Atomic orbital|orbitals}}. &lt;br /&gt;
&lt;br /&gt;
[[Miss Lenhart]] is shown here to be teaching an astronomy class, and claims that it was thought that the planets moved around the sun like electrons around the nucleus before this model was superseded by the probabilistic 'quantum mechanical' view of orbital locations for ''planetary'' movement.&lt;br /&gt;
&lt;br /&gt;
This is another one of the comics where Lenhart tries to fool her class, as in for instance [[1519: Venus]]. Most likely it is not to be taken to be true that her world is like this, or that she believes in it. She just likes to mess with her students.&lt;br /&gt;
&lt;br /&gt;
If what she said was to be taken literally it would suggests that in this reality not only do electrons have distinct bodies that orbit a nucleus, but also that atomic structure was known before the correct planetary one.&lt;br /&gt;
&lt;br /&gt;
In reality, the description of probabilistic orbitals is applied to the electrons in an atom; quantum uncertainty effects are not large enough to notice at the planetary scale{{Citation needed}}. However, such a concept has been prominently featured in the video game ''{{w|Outer Wilds}}'', with its Quantum Moon. {{w|Immanuel Velikovsky}} proposed that our solar system's planets could jump between orbits suddenly, quantum-mechanically, in the same way that electrons do around atomic nuclei. This proposal was not well received in academia.  Real astronomers do talk about probability distributions of orbiting bodies, especially in the context of collision calculations, but it's not because the position of a satellite or asteroid is in a quantum superposition of states; rather, it is our measurement and knowledge of those orbits and their evolution under the influence of less-predictable effects like space weather that is uncertain.&lt;br /&gt;
&lt;br /&gt;
The title text is Miss Lenhart trying to use the first joke to set up another that builds on the first. She says that the consequence of planets having probabilistic locations would mean that they would spend some time in the lower-probability locations closer to or further from the Sun. The Earth's real orbit is in a so called {{w|Circumstellar habitable zone|habitable zone}} where the temperature allows liquid water and thus allows  life as we know it to exist. A probabilistic Earth would spend most of its time in the habitable zone, which is why life exists, but then, when it in short periods are outside the zone, some life would die. The title text claims this is why life on Earth are mortal. Thus indirectly claiming that life only dies in the periods where Earth leaves the habitable zone. As in life only staying in the habitable zone would be immortal.&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
:[Miss Lenhart is teaching a class. In front of her sits a student with curly hair at his desk pen ready on the paper to write notes. The front of the next table behind him can be seen. Behind Lenhart is a white board with two drawings and a large underlined header at the top. The drawing beneath the header shows a solar system with a radiating sun and two planets orbiting with the orbits shown and the planets marked with small circles, one on either side of the sun, both above the sun. Beneath this is another sun in the middle of orbits, but these orbits are now no longer circles. The central orbit is very flat, and three others goes above and below this in what would form eight-like shapes, if they where not hidden partially behind the central part. Lenhart points at the board with a pointing stick while looking out over the class.]&lt;br /&gt;
:Miss Lenhart: Early 20&amp;lt;sup&amp;gt;th&amp;lt;/sup&amp;gt; century models of the solar system imagined that planets circled the Sun like electrons in an atom.&lt;br /&gt;
:Miss Lenhart: We now know planets have no precise location, but instead occupy probabilistic ''orbitals''...&lt;br /&gt;
:Header: &amp;lt;u&amp;gt;Astronomy&amp;lt;/u&amp;gt;&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
&lt;br /&gt;
&amp;lt;!--[[Category:Comics featuring Hairy]] This is a child in class and thus not Hairy--&amp;gt;&lt;br /&gt;
[[Category:Comics featuring Miss Lenhart]]&lt;br /&gt;
[[Category:Physics]]&lt;br /&gt;
[[Category:Astronomy]]&lt;/div&gt;</summary>
		<author><name>NotaBene</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2707:_Astronomy_Numbers&amp;diff=300610</id>
		<title>2707: Astronomy Numbers</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2707:_Astronomy_Numbers&amp;diff=300610"/>
				<updated>2022-12-06T03:05:04Z</updated>
		
		<summary type="html">&lt;p&gt;NotaBene: /* Explanation */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 2707&lt;br /&gt;
| date      = December 5, 2022&lt;br /&gt;
| title     = Astronomy Numbers&lt;br /&gt;
| image     = astronomy_numbers_2x.png&lt;br /&gt;
| imagesize = 593x315px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = I adopted a cat that weighs 12 solar masses. Laser pointers love chasing it.&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
{{incomplete|Created by a CAT-LOVING LASER POINTER - Please change this comment when editing this page. Do NOT delete this tag too soon.}}&lt;br /&gt;
Some scientists are used to working with extremely large (or small) scales, so seeing planets move at “normal” numbers (ones that don’t require scientific notation) is surprising to them. Ponytail remarks that she finds normal numbers “suspicious.” She then extends this paranoia to things that should be measured in regular numbers, such as the weight of cats. The vet (Megan) is seemingly used to this problem (perhaps she gets a lot of physicists) so restates the 12 lb weight of Ponytail’s cat in solar masses, which sounds more correct to the astronomer.&lt;br /&gt;
&lt;br /&gt;
65 miles per hour is approximately equal to 105 kilometres per hour, although the even more typical scientific value (in {{w|International System of Units|SI}} derived units) would be 29 metres per second. 3 × 10^−30 solar masses is approximately equal to 6 kilograms or 13 pounds (consistent with the 12 pounds, or slightly under 5.5 kilogrammes, of the original figure) and is normal, if perhaps slightly overweight, for a cat.&lt;br /&gt;
&lt;br /&gt;
The title text suggests that laser pointers &amp;quot;love chasing&amp;quot; a new cat with a weight of 12 solar masses (an inversion of the typical cat behavior of [[729: Laser Pointer|chasing laser pointer dots]]). This is presumably due to the effects of gravity, which would cause an ordinary object such as a laser pointer to be irresistibly pulled towards the hypothetical cat... along with everything else, up to and including the sun, because said cat would be the most massive object in the solar system by an order of magnitude. In fact, 12 solar masses, when compressed down to a radius of around 36 kilometres, would be a black hole, so making that mass the size of a cat would very definitely qualify as even the laser light is drawn into it.&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
{{incomplete transcript|Do NOT delete this tag too soon.}}&lt;br /&gt;
&lt;br /&gt;
Ponytail: &amp;quot;…And we need to correct for our elliptical orbit. On January 1st, Earth will be approaching the sun at a rate of…let's see…&lt;br /&gt;
&lt;br /&gt;
65 miles per hour.&lt;br /&gt;
&lt;br /&gt;
Weird. Okay.&amp;quot;&lt;br /&gt;
&lt;br /&gt;
Cueball: &amp;quot;Weird?&amp;quot;&lt;br /&gt;
&lt;br /&gt;
Ponytail: &amp;quot;I get suspicious whenever I see a normal number in astronomy. We're not supposed to have those. Feels wrong.&lt;br /&gt;
&lt;br /&gt;
Scales should all be incomprehensible.&amp;quot;&lt;br /&gt;
&lt;br /&gt;
Earlier, at the vet:&lt;br /&gt;
&lt;br /&gt;
Megan in coat: &amp;quot;Your cat weighs 12 lbs.&amp;quot;&lt;br /&gt;
&lt;br /&gt;
Ponytail: &amp;quot;Ridiculous, nothing weighs '12'. You must mean 10&amp;lt;sup&amp;gt;-20&amp;lt;/sup&amp;gt;? or 10&amp;lt;sup&amp;gt;40&amp;lt;/sup&amp;gt;?&amp;quot;&lt;br /&gt;
&lt;br /&gt;
Megan: &amp;quot;Fine. Your cat weighs 3x10&amp;lt;sup&amp;gt;-30&amp;lt;/sup&amp;gt; solar masses.&amp;quot;&lt;br /&gt;
&lt;br /&gt;
Ponytail: &amp;quot;Okay. Better.&amp;quot;&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
&lt;br /&gt;
[[Category:Comics featuring Cueball]]&lt;br /&gt;
[[Category:Comics featuring Ponytail]]&lt;br /&gt;
[[Category:Astronomy]]&lt;br /&gt;
[[Category:Comics featuring Megan]]&lt;/div&gt;</summary>
		<author><name>NotaBene</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2706:_Bendy&amp;diff=300253</id>
		<title>2706: Bendy</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2706:_Bendy&amp;diff=300253"/>
				<updated>2022-12-03T17:18:32Z</updated>
		
		<summary type="html">&lt;p&gt;NotaBene: /* Explanation */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 2706&lt;br /&gt;
| date      = December 2, 2022&lt;br /&gt;
| title     = Bendy&lt;br /&gt;
| image     = bendy_2x.png&lt;br /&gt;
| imagesize = 291x209px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = Squaring the circle is really easy with some good clamps.&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
{{incomplete|Created while BENDING OVER PULLBACKWARDS - Please change this comment when editing this page. Do NOT delete this tag too soon.}}&lt;br /&gt;
&lt;br /&gt;
Geometry usually represents 2D polygons with simple straight lines. In the comic, the lines are compared to a physical object, and are shown to have the property of bendiness. Randall claims this simplifies geometry as now triangles can have arbitrarily defined side lengths by merely stretching the lines, but it is unclear what benefits this may have over current Euclidean geometry. These lines cannot have Euclidean properties, but other non-Euclidean systems have been invented in the past with non-standard properties.&amp;lt;ref&amp;gt;{{w|Non-Euclidean_geometry}}&amp;lt;/ref&amp;gt;&lt;br /&gt;
&lt;br /&gt;
This comic may be a reference to axis breaks in graphs, which shrink large segments and enhance readability and are denoted by a wiggly line on the axis in question.&lt;br /&gt;
&lt;br /&gt;
The title-text talks about &amp;quot;{{w|Squaring the circle}}&amp;quot;, a famous geometry problem based around constructing a square with the same area as a given circle with a compass and straightedge, which was proven to be impossible (even with more powerful forms of construction, such as marked straightedges or origami) in 1882 as pi is a transcendental number (Not to be confused with {{w|Tarski's circle-squaring problem|circle-squaring}}.) However, it then goes on to describe a way to literally turn one of these bendy shapes from a circle into a square, namely using clamps.&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
{{incomplete transcript|Do NOT delete this tag too soon.}}&lt;br /&gt;
:[There are two right triangles. One triangle has side lengths of 3, 4, and 5, and is scribbled out in red. The other triangle has the same general shape but with the catheti appearing like longer but bent lines, so that all the side lengths equal 5 if straightened.]&lt;br /&gt;
&lt;br /&gt;
:[Caption below the panel:]&lt;br /&gt;
:Huge geometry breakthrough: Turns out those lines we make triangles out of are bendy!&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
&lt;br /&gt;
[[Category:Math]]&lt;br /&gt;
[[Category:Comics with color]]&lt;/div&gt;</summary>
		<author><name>NotaBene</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2702:_What_If_2_Gift_Guide&amp;diff=299802</id>
		<title>2702: What If 2 Gift Guide</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2702:_What_If_2_Gift_Guide&amp;diff=299802"/>
				<updated>2022-11-25T02:11:25Z</updated>
		
		<summary type="html">&lt;p&gt;NotaBene: /* Explanation */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 2702&lt;br /&gt;
| date      = November 23, 2022&lt;br /&gt;
| title     = What If 2 Gift Guide&lt;br /&gt;
| image     = what_if_2_gift_guide_2x.png&lt;br /&gt;
| imagesize = 500x878px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = BABIES OR LITERATURE BUT NOT BOTH: Baby shoes&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
{{incomplete|Created by an OUT-OF-CONTROL HANDHELD NEUTRINO CYLINDER FOR TEENS. Do NOT delete this tag too soon.}}&lt;br /&gt;
&lt;br /&gt;
[[Randall Munroe]], author of xkcd, is promoting his new book, ''[https://xkcd.com/what-if-2/ What if? 2]''. He also suggests some other gift ideas, most of which are dangerous or impractical. Many reference past xkcd cartoons. &lt;br /&gt;
&lt;br /&gt;
{| class=&amp;quot;wikitable&amp;quot;&lt;br /&gt;
|+ &lt;br /&gt;
|-&lt;br /&gt;
! Interest !! Gift Idea !! Explanation&lt;br /&gt;
|-&lt;br /&gt;
| Engineering || The {{w|International Prototype of the Kilogram|platinum cylinder}} formerly used to identify the kilogram || This is an object of historical relevance of which only six exist, making it a very expensive or illegal gift. With the {{w|2019 redefinition of the SI base units|redefinition of the SI base units}} in 2019, {{w|2019_redefinition_of_the_SI_base_units#Kilogram|the kilogram}} is now defined using only natural constants rather than a physical standard. It took some time before this last SI unit was redefined, 3 years prior to this comic's release. The old prototypes are no longer as important as they were when they were actually used to define the kilogram. But they are still historical artifacts with enormous value, even apart from the value of a  kilogram of platinum (about $32 000 at time of writing).&lt;br /&gt;
|-&lt;br /&gt;
| Biology     || The genomes of the scientists who headed the human genome project || The &amp;quot;International Human Genome Sequencing Consortium,&amp;quot; as the {{w|Human Genome Project}} team was known, involved scientists from twenty institutions in six countries. In the US, it was initially led by DNA structure co-discoverer {{w|James Watson}} who was succeeded by {{w|Francis Collins}}. In the UK, the project was led by {{w|John Sulston}}. The teams from other countries' institutions were less prominent and performed substantially less work on the initial sequencing. James Watson's genome was sequenced in 2007. The genome of {{w|Craig Venter}}, the CEO of {{w|Celera Genomics}}, was used as the exemplar for Celera’s sequence. While the “race” between Celera and NIH was declared a tie by then-President Clinton, in actuality, Celera had some 85+% coverage while NIH was about 50%. &lt;br /&gt;
|-&lt;br /&gt;
| Physics     || A beam of neutrinos delivered through the earth by the LHC || {{w|Neutrino}}s interact very weakly with other particles, to the point that they almost always pass straight through matter completely unaffected. This means that particle accelerators can send neutrinos to any other point on Earth by aiming the particle beam into the ground, and the neutrinos pass straight through the Earth. This point is referenced in the What-If article &amp;quot;{{what if|73|Lethal Neutrinos}}&amp;quot;. The low interactivity of neutrinos would also mean that the recipient would be unable to perceive their gift, making this a poor present for anyone except the small proportion of physics aficionados who already have a neutrino detector on-hand.&lt;br /&gt;
|-&lt;br /&gt;
| Animals     || Surprise wildlife encounter (gift-wrapped box with a bobcat inside) || This is a reference to [https://www.explainxkcd.com/wiki/index.php/Category:Bobcats xkcd's rich history of mailing boxed bobcats to people]. This gift would place the recipient in a perilous situation, and, although definitely a wildlife encounter, is not a good gift.{{Citation needed}}&lt;br /&gt;
|-&lt;br /&gt;
| Law         || A vacation to that area of Idaho where you can commit crimes with impunity due to a court district boundary error || This refers to the &amp;quot;{{w|Zone of Death (Yellowstone)|Zone of Death}}&amp;quot;, a 50-square-mile area of Yellowstone National Park that is in the physical boundaries of Idaho, but in the legal jurisdiction of Wyoming. Because a jury in the United States must be composed of residents of the same district ''and'' state in which the crime was committed, but no one lives in this small area of a National Park, anyone who committed a crime here could not possibly receive a trial, and thus could not legally be punished for said crime in any circumstance. This is an interesting legal loophole, but going to this area does not provide any more value than hearing about it, and could scare your law-enthusiast friend.&lt;br /&gt;
|-&lt;br /&gt;
| Chemistry   || A necklace of element samples whose symbols spell out the recipient's name (note: names like &amp;quot;Katherine&amp;quot; and &amp;quot;Brandon&amp;quot; may cause radiation accidents.) || Novelty necklaces are a common and innocuous gift, and using element symbols in place of the same letter is a common gimmick, such as in the title of Breaking Bad. However, making an object out of whatever element sample corresponds to someone's name could have unpredictable results - some elements in their pure form are too brittle or have too low a melting point for such an application, and some are unsafe. &amp;quot;Katherine&amp;quot; would be made from Potassium (highly reactive), Astatine (rare, '''radioactive''' and has a short half-life), Hydrogen (gaseous at room temperature, flammable), Erbium, Iodine (sublimes into a gas at room temperature), and Neon (gaseous at room temperature). &amp;quot;Brandon&amp;quot; would be made from Boron, Radium ('''radioactive'''), Neodymium, Oxygen (gaseous at room temperature), and Nitrogen (gaseous at room temperature).  The problems with element samples could be partially alleviated by allowing compounds rather than pure elements, but the radioactivity would still be a problem, and neon does not form compounds and as such is always gaseous. Additionally, the letter Q does not appear in the periodic table symbols, so a name like Quinn would be problematic.&lt;br /&gt;
|-&lt;br /&gt;
| Puzzles     || Two goats and a new car || This is a reference to the the &amp;quot;{{w|Monty Hall problem}}&amp;quot;, in which a game show contestant can win only one of the three items. (See [[1282: Monty Hall]] for another cartoon inspired by this problem.) This gift places the recipient within a puzzle which is typically discussed hypothetically, rather than happening in real life. Although a new car is a ''great'' gift, goats are only useful to people with specific professions. &lt;br /&gt;
The problem that the recipient would have would likely be how to transport the two goats - it'd be difficult to fit both into a compact car at once, but one can't be left behind unattended (especially not with [[2348: Boat Puzzle|a cabbage or a wolf]]).&lt;br /&gt;
|-&lt;br /&gt;
| Technology  || Cybiko® wireless handheld computer for teens (2000) || This device was referenced in [https://xkcd.com/2699/ one of last week's comics], so Randall seems to have a temporary fixation on it. While an interesting example of the history of communication technology and coming from a time when experimentation was common and standards were few, it isn't very useful now, because it is no longer supported, has a communication range of 100 meters (sending text messages via radio) and one can only use it to communicate with users of the same device. However, technology enthusiasts could find it interesting as a collectors' item, so by all means it is one of the most plausible gift ideas on this list.&lt;br /&gt;
|-&lt;br /&gt;
| Space       || Webb telescope personal photoshoot || The Webb telescope belongs to NASA, the ESA and the CSA, and is currently very far from Earth. It is designed to capture distant space objects in previously unseen detail. It is not designed to photograph nearby objects of human size, assuming that that is what photoshoot implies. These circumstances make it both an impossible and impractical gift. Furthermore, unless the recipient of the gift is able to travel a long way from Earth, Webb would have to point at the warm Earth and expose its optics to the Sun, permanently crippling the telescope. [https://webb.nasa.gov/content/about/faqs/faqLite.html This is forbidden by NASA.]&lt;br /&gt;
&lt;br /&gt;
On the other hand, a gift experience of being allowed to to take your own snapshot of Webb in position, perhaps with a [https://www.dailymail.co.uk/sciencetech/article-10442913/James-Webb-Space-Telescope-seen-Earth-settles-orbit.html robotic telescope], might be an attractive gift to a space enthusiast! So might a chance to use the Webb telescope to take pictures of whatever celestial objects one chooses, as time on the Webb telescope is very carefully allocated.&lt;br /&gt;
|-&lt;br /&gt;
| Literature  || Stephen King's writing desk (he's still using it so you'll have to fight him) || {{w|Stephen King}} is an author lucky enough to have legendary status while still alive. The desk of an author that has died would become an object of historic significance and would likely be either kept for exhibition or auctioned by their respective estate, but as Stephen King still writes, his desk, while valuable, cannot be subjected to the same.&lt;br /&gt;
|-&lt;br /&gt;
| Philosophy  || Out-of-control trolley || This is another gift that places the recipient in the situations that they like discussing hypothetically. This refers to the {{w|trolley problem}}, which places stress on the person forced to make the decision, and exists to make them examine their morals. Facing someone with the hypothetical problem is already not a good gift, but [https://www.youtube.com/watch?v=1sl5KJ69qiA forcing them to live through it in real life] is a terrible gift. (See [[1455: Trolley Problem]] for another cartoon inspired by this problem.)&lt;br /&gt;
|-&lt;br /&gt;
| Psychology  || A nice gift with a note saying you don't expect anything in return || This is perhaps the most viable option on this list. This kind of gift giving could induce the Benjamin Franklin effect, causing the gift giver to like the recipient more. It could also be used to manipulate the recipient by increasing pressure to reciprocate. This would cause them stress, making it a bad gift, but a psychologist would hopefully understand it to be a joke.  &lt;br /&gt;
|-&lt;br /&gt;
| (Title text) Babies or literature but not both || Baby shoes || This is a reference to the six-word story {{w|For sale: baby shoes, never worn}} which is often attributed to Ernest Hemingway. Someone with babies, such as expecting or new parents would find baby shoes as a valuable gift for their child. Someone interested in literature would see the reference to a famous work. But someone who understands the reference would possibly also be sad if they simultaneously actually enjoyed babies or have children of their own (since the story implies the seller was expecting a baby but there was an accident).&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
{{incomplete transcript|Do NOT delete this tag too soon.}}&lt;br /&gt;
&lt;br /&gt;
What If? 2 Gift Guide&lt;br /&gt;
&lt;br /&gt;
What if? 2 makes a good gift for anyone who's into science, absurd ideas, or just the universe in general. To order, go to xkcd.com/whatif2, or just type &amp;quot;what if 2&amp;quot; into some random box on your device; it will probably work.&lt;br /&gt;
&lt;br /&gt;
Here are some other gift ideas for hard-to-shop-for science enthusiasts:&lt;br /&gt;
&lt;br /&gt;
Interest  -  Gift Idea&lt;br /&gt;
&lt;br /&gt;
Engineering  -  The platinum cylinder formerly used to define the kilogram&amp;lt;br/&amp;gt;&lt;br /&gt;
Biology  -  The genomes of the scientists who headed the human genome project&amp;lt;br/&amp;gt;&lt;br /&gt;
Physics  -  A beam of neutrinos delivered through the earth by the LHC&amp;lt;br/&amp;gt;&lt;br /&gt;
Animals  -  Surprise wildlife encounter (gift-wrapped box with a bobcat inside)&amp;lt;br/&amp;gt;&lt;br /&gt;
Law  -  A vacation to that area of Idaho where you can commit crimes with impunity due to a court district boundary error&amp;lt;br/&amp;gt;&lt;br /&gt;
Chemistry  -  A necklace of element samples whose symbols spell out the recipient's name (note: names like &amp;quot;Katherine&amp;quot; and &amp;quot;Brandon&amp;quot; may cause radiation accidents.)&amp;lt;br/&amp;gt;&lt;br /&gt;
Puzzles  -  Two goats and a new car&amp;lt;br/&amp;gt;&lt;br /&gt;
Technology  -   Cybiko® Wireless Handheld Computer for Teens (2000)&amp;lt;br/&amp;gt;&lt;br /&gt;
Space  -  Webb telescope personal photoshoot&amp;lt;br/&amp;gt;&lt;br /&gt;
Literature  -  Stephen King's writing desk (he's still using it so you'll have to fight him)&amp;lt;br/&amp;gt;&lt;br /&gt;
Philosophy  -  Out-of-control trolley&amp;lt;br/&amp;gt;&lt;br /&gt;
Psychology  -  A nice gift with a note saying you don't expect anything in return.&amp;lt;br/&amp;gt;&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
&lt;br /&gt;
[[Category:Book promotion]]&lt;br /&gt;
[[Category:Bobcats]]&lt;/div&gt;</summary>
		<author><name>NotaBene</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2695:_Soil&amp;diff=298370</id>
		<title>2695: Soil</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2695:_Soil&amp;diff=298370"/>
				<updated>2022-11-07T16:15:05Z</updated>
		
		<summary type="html">&lt;p&gt;NotaBene: /* Explanation */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 2695&lt;br /&gt;
| date      = November 7, 2022&lt;br /&gt;
| title     = Soil&lt;br /&gt;
| image     = soil_2x.png&lt;br /&gt;
| imagesize = 547x217px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = You might want to bring your frost-sensitive plants in from the patio. The high-level aerosols may result in short-term cooling across the entire backyard.&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
{{incomplete|Created by an EXPLANATION SEED. Do NOT delete this tag too soon.}}&lt;br /&gt;
&lt;br /&gt;
[[Beret Guy]] is at it again, what with his wacky powers. this time, he seems to be using {{w|volcano}}  seeds to grow tiny volcanoes as an alternative to fertilizing [[Cueball]]'s garden. In reality, volcanoes are caused by the pressure of {{w|magma}} (underground lava) from below the Earth's crust pushing up through it, not seeds.&lt;br /&gt;
&lt;br /&gt;
Volcanic soil is [https://www.sciencedirect.com/topics/earth-and-planetary-sciences/volcanic-soil generally fertile], although as Cueball points out, the process of eruption is destructive to whatever plants are ''presently'' in his garden.&lt;br /&gt;
&lt;br /&gt;
The title text alludes to the fact that sulfate {{w|aerosol}}s from volcanic eruptions may cause a [https://www.sciencedirect.com/topics/earth-and-planetary-sciences/volcanic-soil short-term cooling effect], expanding on the comedy from a small scale volcano, by adding small scale volcano effects — in reality, the cooling effect occurs because the {{w|aerosol}}s in the atmosphere block out energy from the sun.&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
{{incomplete transcript|Do NOT delete this tag too soon.}}&lt;br /&gt;
&lt;br /&gt;
:[Cueball is standing, holding a trowel. Beret Guy is kneeling, and pouring the content of a small bag in a hole in the ground.]&lt;br /&gt;
&lt;br /&gt;
:Cueball: Thanks for the gardening help!&lt;br /&gt;
&lt;br /&gt;
:Beret Guy: I made these seeds myself!&lt;br /&gt;
&lt;br /&gt;
:[Beret Guy is standing next to a small eruption coming from the ground.]&lt;br /&gt;
&lt;br /&gt;
:[Same scene, eruption is now a knee-high volcano. It produces fumes.]&lt;br /&gt;
&lt;br /&gt;
:Beret Guy: The infusion of nutrient-rich volcanic soil will revitalize your garden.&lt;br /&gt;
&lt;br /&gt;
:[Same scene, the volcano is now waist-high. There are flames on its sides.]&lt;br /&gt;
&lt;br /&gt;
:Voice outside the picture from the direction of Cueball: All my plants are on fire.&lt;br /&gt;
&lt;br /&gt;
:Beret Guy: But soon, life will return to these slopes!&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
&lt;br /&gt;
[[Category:Comics featuring Cueball]]&lt;br /&gt;
[[Category:Comics featuring Beret Guy]]&lt;br /&gt;
[[Category:Strange powers of Beret Guy]]&lt;br /&gt;
[[Category:Volcanoes]]&lt;/div&gt;</summary>
		<author><name>NotaBene</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2693:_Wirecutter_Recommendation&amp;diff=298091</id>
		<title>2693: Wirecutter Recommendation</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2693:_Wirecutter_Recommendation&amp;diff=298091"/>
				<updated>2022-11-03T15:17:57Z</updated>
		
		<summary type="html">&lt;p&gt;NotaBene: /* Explanation */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 2693&lt;br /&gt;
| date      = November 2, 2022&lt;br /&gt;
| title     = Wirecutter Recommendation&lt;br /&gt;
| image     = wirecutter_recommendation_2x.png&lt;br /&gt;
| imagesize = 430x333px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = Their 'best philosophy of epistemology' picks are great, but you can tell they're struggling a little in the 'why you should trust us' section.&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
{{incomplete|Created by a WIRECUTTER DREAM — Please change this comment when editing this page. Do NOT delete this tag too soon.}}&lt;br /&gt;
&lt;br /&gt;
''[https://www.nytimes.com/wirecutter Wirecutter]'' is a product review website, owned by ''The New York Times''. As such, Wirecutter is best used for product reviews. The comic, however, lists things that Wirecutter should ''not'' recommend, or that one should not choose based on Wirecutter reviews.&lt;br /&gt;
&lt;br /&gt;
The first panel shows [[Cueball]] telling [[Ponytail]] that he decided to go with Wirecutter's recommendation when buying something unspecified. The second panel shows a list of different contexts for this conversation, ranking them from &amp;quot;Fine&amp;quot; to &amp;quot;Very Bad&amp;quot;.&lt;br /&gt;
&lt;br /&gt;
{| class=&amp;quot;wikitable sortable&amp;quot;&lt;br /&gt;
!Thing Being Chosen!!Judgment!!Explanation&lt;br /&gt;
|-&lt;br /&gt;
|Vacuum cleaner||Fine||Vacuum cleaners are an everyday household item, and exactly the kind of thing Wirecutter generally reviews.&lt;br /&gt;
|-&lt;br /&gt;
|Headphones||Fine|||Headphones are also fairly ubiquitous, and Wirecutter would likewise be useful in such a scenario.&lt;br /&gt;
|-&lt;br /&gt;
|Electric scooter||Fine||While less common than the two above, electric scooters are still a popular electrical product, so Wirecutter is a decent choice for advice.&lt;br /&gt;
|-&lt;br /&gt;
|Favorite movie||Weird||Most people would say that your choice of favorite movie should be based on your own experiences, rather than someone else's opinions. Reviewing movies is a very different endeavor to reviewing products, and one would not expect Wirecutter to be particularly proficient with it. While a movie review website may be a reasonable source of recommendations on whether to see a particular movie at all, it would be strange to choose one's own favorite movie based on a website's recommendation.&lt;br /&gt;
|-&lt;br /&gt;
|Personal style||Weird||Not only does the term &amp;quot;personal style&amp;quot; encompass a vast range of topics, it is also (predictably) a deeply personal thing. These two factors mean that not only will Wirecutter's recommended likely not fully discuss every factor of your personal style, it also isn't the kind of service you'd use to choose something as nebulous and personal as your &amp;quot;personal style.&amp;quot;&lt;br /&gt;
|-&lt;br /&gt;
|Neighborhood||Weird||It can be assumed this means &amp;quot;the neighborhood one lives in.&amp;quot; In this case, it is odd to rely on Wirecutter for recommendations on where to live, since a respectable portion of that decision is up to personal preference and local conditions that a national newspaper (even one with the resources of the ''New York Times'') will not be able to see. In a best case scenario, Wirecutter is recommending neighborhoods based on empirical data, such as local economic growth.&lt;br /&gt;
|-&lt;br /&gt;
|Pet||Weird||While the ''type'' of pet may be more easy to rank on a website (especially with a pro/con system), picking an ''individual pet'' is an extremely personal decision that probably can't be considered covered by a product review website like Wirecutter. &lt;br /&gt;
|-&lt;br /&gt;
|College major||Bad||Your college major will influence the rest of your life significantly, and your choice should depend on your prior personal experiences. Basing your choice on Wirecutter, something completely unrelated to college, is likely a bad idea.&lt;br /&gt;
|-&lt;br /&gt;
|Career||Bad||One's optimal career choice is subject to a wide range of highly personal factors, including your talents, ambitions, and capabilities. It is highly unlikely that a hardware review site like Wirecutter would be capable of accounting for every one of these factors for every conceivable viewer.&lt;br /&gt;
|-&lt;br /&gt;
|Religion||Bad||Do ''Not'' base your religious worldview off of the electronic device equivalent to Yelp. The idea of Wirecutter reviewing religion has appeared in a previous comic, [[2536: Wirecutter]].&lt;br /&gt;
|-&lt;br /&gt;
|Spouse||Very Bad|| In general, people pair off when choosing spouses. This would mean that Wirecutter would be required to either find one potential spouse for every reader (cumbersome, to say the least) or would recommend ''one'' spouse for multiple (possibly millions of) partners. Even assuming an accelerated divorce rate, it would be impossible for the choice spouse to actually accomplish the role.&lt;br /&gt;
Perhaps [https://www.newyorker.com/magazine/2022/01/24/wirecutter-recommends-the-best-partner this parody] by the New Yorker inspired this comic.&lt;br /&gt;
|-&lt;br /&gt;
|Dreams||Very Bad|| There are two possible definitions of &amp;quot;dream&amp;quot; that may be referred to here. When it comes to &amp;quot;the series of thoughts, images, and sensations occurring in a person's mind during sleep,&amp;quot; most people cannot consciously control what they dream about, so recommending this sort of dream is somewhat pointless.&amp;lt;br /&amp;gt;On the other hand, if Cueball is relying upon Wirecutter to recommend &amp;quot;a cherished aspiration, ambition, or ideal,&amp;quot; he is allowing one of the most personal and individual aspects of his life — something which may give life itself a sense of meaning — to be dictated by a consumer product review site. As with many entries here, this is something that most people have to come up with or discover for themselves; relying on a third party to recommend one FOR him is deeply unlikely to bring about long-term satisfaction.&lt;br /&gt;
|-&lt;br /&gt;
|Favorite child||Very Bad|| Assuming this is a reference to the reader's own children, it can be difficult and furthermore bad practice for a parent to choose their &amp;quot;favorite&amp;quot; child, and using Wirecutter to do this analysis is near impossible. And a website that purports to know more about how to judge the relative merits of your own family than you would be... interesting.&lt;br /&gt;
The alternative interpretation of assuming that this is from &amp;quot;all children, everywhere&amp;quot; is more difficult. There are approximately 1.3 billion persons under the age of 18, most of whom have at least one good quality,{{citation needed}} and defining a useful ranking in such a situation is functionally impossible.&lt;br /&gt;
|-&lt;br /&gt;
|Site for product recommendations||Very Bad|| This is a topic of which the authors, editors, and publishers of Wirecutter have a vested interest and clear bias. This implies that the people at Wirecutter would be self-serving when it comes to recommending recommendations, specifically. &lt;br /&gt;
|-&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
The title text references {{w|epistemology}}, a branch of philosophy concerned with the nature of knowledge and truth, for which [[Randall]] says Wirecutter's recommendations are great. Broadly speaking, epistemology attempts to answer the question &amp;quot;how do I know that what I know is true?&amp;quot; He seems skeptical, however, of their reasons that their reviews should be trusted.&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
{{incomplete transcript|Do NOT delete this tag too soon.}}&lt;br /&gt;
:[Cueball and Ponytail standing next to each other. Cueball has his palm raised.]&lt;br /&gt;
:Cueball: I just went with the one Wirecutter recommended.&lt;br /&gt;
&lt;br /&gt;
:[A panel of four categories with topics next to them]&lt;br /&gt;
&lt;br /&gt;
:[Fine category]&lt;br /&gt;
:Vacuum cleaner&lt;br /&gt;
:Headphones&lt;br /&gt;
:Electric scooter&lt;br /&gt;
&lt;br /&gt;
:[Weird category]&lt;br /&gt;
:Favorite movie&lt;br /&gt;
:Personal style&lt;br /&gt;
:Neighborhood &lt;br /&gt;
:Pet&lt;br /&gt;
&lt;br /&gt;
:[Bad category]&lt;br /&gt;
:College major&lt;br /&gt;
:Career &lt;br /&gt;
:Religion&lt;br /&gt;
&lt;br /&gt;
:[Very bad category]&lt;br /&gt;
:Spouse&lt;br /&gt;
:Dreams&lt;br /&gt;
:Favorite child&lt;br /&gt;
:Site for product recommendations&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
[[Category:Comics featuring Cueball]]&lt;br /&gt;
[[Category:Comics featuring Ponytail]]&lt;/div&gt;</summary>
		<author><name>NotaBene</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2691:_Encryption&amp;diff=297824</id>
		<title>2691: Encryption</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2691:_Encryption&amp;diff=297824"/>
				<updated>2022-10-31T12:56:47Z</updated>
		
		<summary type="html">&lt;p&gt;NotaBene: /* Explanation */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 2691&lt;br /&gt;
| date      = October 28, 2022&lt;br /&gt;
| title     = Encryption&lt;br /&gt;
| image     = encryption_2x.png&lt;br /&gt;
| imagesize = 235x380px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = WARNING: PEOPLE NAMED EVE ARE PROHIBITED FROM INSTALLING THIS APP!&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
{{incomplete|Created by ALICE FOR BOB - Please change this comment when editing this page.''Possibly connected to Elon buying Twitter? thoughts? talk about secure messaging apps'' Do NOT delete this tag too soon.}}&lt;br /&gt;
&lt;br /&gt;
When teaching encryption / cryptography, it is common to use a story about sending messages from {{w|Alice to Bob}} (Party &amp;quot;A&amp;quot; and Party &amp;quot;B&amp;quot; respectively). Cueball claims to have created a texting app that only allows for this one thing. It is unclear how it enforces this restriction, but looks suspiciously as if the app actually bases this on the names of the phone owners. The title text mentions Eve, who in the typical story represents an &amp;quot;eavesdropper&amp;quot;, someone who attempts to intercept the messages between Alice and Bob.  The fact that persons named Eve are 'forbidden' from installing the app suggests that it might not actually be as secure as Cueball advertises -- it may be that he naively thinks that it's just the name that makes the eavesdropper, and that by excluding all Eves, Alice's messages to Bob will remain private. It is not clear which phones will support this app, but it appears to be perfectly suited for the [[:Category:xkcd Phones|xkcd Phones]].&lt;br /&gt;
&lt;br /&gt;
The comics [[177: Alice and Bob]] and [[1323: Protocol]] are also about Alice and Bob.&lt;br /&gt;
&lt;br /&gt;
If the names of the users don't need to be verified, it seems possible to circumvent the security features of the app with double installations and a complete mess of a contact list in which everyone's names are prefixed with &amp;quot;Alice&amp;quot; or &amp;quot;Bob&amp;quot;. Also, it would appear that &amp;quot;Bob&amp;quot; needn't be the real name of the message receiver, but it could also be a diminutive. Thus a user might claim to be &amp;quot;Bob&amp;quot; whichever his given name is.&lt;br /&gt;
&lt;br /&gt;
This may be related to the announcement that Signal would be discontinuing support for SMS/MMS messages.&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
{{incomplete transcript|Do NOT delete this tag too soon.}}&lt;br /&gt;
:[Cueball showing a phone to Alice]&lt;br /&gt;
:Cueball: The app will let you send messages to your friend Robert, or my brother.&lt;br /&gt;
:Alice: Can they reply?&lt;br /&gt;
:Cueball: No.&lt;br /&gt;
&lt;br /&gt;
:[Caption below the panel]:&lt;br /&gt;
:My new secure texting app only allows people named Alice to send messages to people named Bob.&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
[[Category: Comics featuring Cueball]]&lt;br /&gt;
[[Category: Cryptography]]&lt;br /&gt;
[[Category: Smartphones]]&lt;/div&gt;</summary>
		<author><name>NotaBene</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2691:_Encryption&amp;diff=297783</id>
		<title>2691: Encryption</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2691:_Encryption&amp;diff=297783"/>
				<updated>2022-10-29T12:54:21Z</updated>
		
		<summary type="html">&lt;p&gt;NotaBene: /* Explanation */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 2691&lt;br /&gt;
| date      = October 28, 2022&lt;br /&gt;
| title     = Encryption&lt;br /&gt;
| image     = encryption_2x.png&lt;br /&gt;
| imagesize = 235x380px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = WARNING: PEOPLE NAMED EVE ARE PROHIBITED FROM INSTALLING THIS APP!&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
{{incomplete|Created by ALICE AND BOB - Please change this comment when editing this page.''Possibly connected to Elon buying Twitter? thoughts? talk about secure messaging apps'' Do NOT delete this tag too soon.}}&lt;br /&gt;
&lt;br /&gt;
When teaching encryption / cryptography, it is common to use a story about sending messages between people named {{w|Alice and Bob}} (Party &amp;quot;A&amp;quot; and Party &amp;quot;B&amp;quot; respectively). Cueball claims to have created a texting app that only allows for this one thing. It is unclear how it enforces this restriction. The title text mentions Eve, who represents an &amp;quot;eavesdropper&amp;quot;, someone who attempts to intercept the messages between Alice and Bob.  The fact that persons named Eve are 'forbidden' from installing the app suggests that it might not actually be as secure as Cueball advertises -- it may be that he naively thinks that it's just the name that makes the eavesdropper, and that by excluding all Eves, Alice's messages to Bob will remain private.&lt;br /&gt;
&lt;br /&gt;
[[177: Alice and Bob]] and [[1323: Protocol]] are also about Alice and Bob.&lt;br /&gt;
&lt;br /&gt;
If the names of the users don't need to be verified, it seems possible to circumvent the security features of the app with double installations and a complete mess of a contact list in which all people are named &amp;quot;Alice&amp;quot; or &amp;quot;Bob&amp;quot;.&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
{{incomplete transcript|Do NOT delete this tag too soon.}}&lt;br /&gt;
:[Cueball showing a phone to Alice]&lt;br /&gt;
:Cueball: The app will let you send messages to your friend Robert, or my brother.&lt;br /&gt;
:Alice: Can they reply?&lt;br /&gt;
:Cueball: No.&lt;br /&gt;
&lt;br /&gt;
:[Caption below the panel]:&lt;br /&gt;
:My new secure texting app only allows people named Alice to send messages to people named Bob.&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
[[Category: Comics featuring Cueball]]&lt;br /&gt;
[[Category: Cryptography]]&lt;br /&gt;
[[Category: Smartphones]]&lt;/div&gt;</summary>
		<author><name>NotaBene</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2685:_2045&amp;diff=296852</id>
		<title>2685: 2045</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2685:_2045&amp;diff=296852"/>
				<updated>2022-10-16T18:10:40Z</updated>
		
		<summary type="html">&lt;p&gt;NotaBene: /* Explanation */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 2685&lt;br /&gt;
| date      = October 14, 2022&lt;br /&gt;
| title     = 2045&lt;br /&gt;
| image     = 2045_2x.png&lt;br /&gt;
| imagesize = 350x457px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = &amp;quot;Sorry, doctor, I'm going to have to come in on a different day--I have another appointment that would be really hard to move, in terms of the kinetic energy requirements.&amp;quot;&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==                     &lt;br /&gt;
{{incomplete|Created by a GIGANTIC NUCLEAR FURNACE (THE SUN) - Please change this comment when editing this page. Do NOT delete this tag too soon.}}&lt;br /&gt;
&lt;br /&gt;
The characters are talking about upcoming total {{w|solar eclipses}}. Partial solar eclipses are fairly frequent (2–5 per year), but total eclipses are less frequent (about every 18 months), and most of them will not be in convenient locations for a particular set of people. Cueball seems to be talking about total eclipses visible in much of North America: {{w|Solar eclipse of April 8, 2024|April 8, 2024}} and {{w|Solar eclipse of August 12, 2045|August 12, 2045}}. (There's also a {{w|annular eclipse}} on October 14, 2023.) Making plans for eclipses is awkward given the uncertainty present for anything else far in the future, such as whether the attendees will have children by then, and even whether another scheduling program will catch on and replace Google Calendar.&lt;br /&gt;
&lt;br /&gt;
Black Hat claims he can't make it, as he vaguely and obscurely claims he already knows he has &amp;quot;a thing&amp;quot; on August 12, 2045. Events for that far in the future usually have not yet been scheduled for a precise date,{{Citation needed}} and, combined with the fact that Black Hat remembers this date without checking (but also without specifying what he'll be doing then), implies that this could be another of his grand and sinister plans... or he just doesn't want to go.&lt;br /&gt;
&lt;br /&gt;
The title text is someone cancelling a medical appointment to see the eclipse. The eclipse is hard to move because that would require hastening or delaying it by moving the Earth, Moon or Sun, any of which would require vast amounts of energy.{{Citation needed}} People also don't often schedule doctor's appointments decades in advance.{{Citation needed}}&lt;br /&gt;
&lt;br /&gt;
This was published a year before the next eclipse; so, if you're someone who plans things a year in advance, this serves as a reminder to put it on your calendar.&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
{{incomplete transcript|Do NOT delete this tag too soon.}}&lt;br /&gt;
:[Cueball, a friend also drawn as Cueball, Danish, and Black Hat are standing together. Danish is looking at her phone.]&lt;br /&gt;
:Cueball: ...And then after the one in 2024, there's another on August 12, 2045.&lt;br /&gt;
:Friend: We're in! We can invite our kids, assuming we have any.&lt;br /&gt;
:Danish: I'll create an event. Do you think we'll still be using Google Calendar in 2045?&lt;br /&gt;
:Black Hat: Sorry, I'd love to make it, but I have a thing that day.&lt;br /&gt;
&lt;br /&gt;
:Caption: It's weird making plans for eclipses.&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
&lt;br /&gt;
[[Category:Comics featuring Cueball]]&lt;br /&gt;
[[Category:Multiple Cueballs]]&lt;br /&gt;
[[Category:Comics featuring Danish]]&lt;br /&gt;
[[Category:Comics featuring Black Hat]]&lt;/div&gt;</summary>
		<author><name>NotaBene</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2684:_Road_Space_Comparison&amp;diff=296524</id>
		<title>2684: Road Space Comparison</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2684:_Road_Space_Comparison&amp;diff=296524"/>
				<updated>2022-10-12T21:11:34Z</updated>
		
		<summary type="html">&lt;p&gt;NotaBene: /* Explanation */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 2684&lt;br /&gt;
| date      = October 12, 2022&lt;br /&gt;
| title     = Road Space Comparison&lt;br /&gt;
| image     = road_space_comparison_2x.png&lt;br /&gt;
| imagesize = 740x1157px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = I wonder how hard it would be to ride an electric scooter in a hamster ball.&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
{{incomplete|Created by a BOT RIDING 33 SELF-DRIVING CARS - Please change this comment when editing this page. Do NOT delete this tag too soon.}}&lt;br /&gt;
&lt;br /&gt;
This comic strip opens by comparing the road footprint of 50 people traveling by various means -- walking, biking, riding a bus, or driving cars.  However, it quickly devolves into more ridiculous comparisons (as often is the case with xkcd), such as enormous tandem bikes, hamster balls, and cars stacked on top of buses or towing other cars.&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
{{incomplete transcript|Do NOT delete this tag too soon.}}&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;/div&gt;</summary>
		<author><name>NotaBene</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2683:_Fan_Theories&amp;diff=296483</id>
		<title>2683: Fan Theories</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2683:_Fan_Theories&amp;diff=296483"/>
				<updated>2022-10-12T13:06:32Z</updated>
		
		<summary type="html">&lt;p&gt;NotaBene: /* Explanation */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 2683&lt;br /&gt;
| date      = October 10, 2022&lt;br /&gt;
| title     = Fan Theories&lt;br /&gt;
| image     = fan_theories_2x.png&lt;br /&gt;
| imagesize = 267x318px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = The universe fandom is great. Such sweet and enthusiastic people.&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
{{incomplete| Created by a THREE-D PRINTED FAN BASED ON A HYPOTHETICAL SOLUTION TO THE NAVIER-STOKES LAMINAR-TURBULENCE BOUNDARY EQUATION. Do NOT delete this tag too soon.}}&lt;br /&gt;
&lt;br /&gt;
A fan theory is a hypothesis about parts of a fictional story that are not shown to the audience, including both background elements not visited by the narrative, and future parts of the story that have not yet been released.&lt;br /&gt;
&lt;br /&gt;
In this comic, [[Cueball]] refers to scientific hypotheses as &amp;quot;fan theories,&amp;quot; implying real life is a franchise with an established fandom. Scientists might probably consider doing so as undervaluing their work, because scientific hypotheses are usually the result of much more serious research.{{Citation needed}} Because there are a lot of charismatic cranks who obtain undeserved recognition for their supposedly scientific hypotheses, such disrespect could be perceived as insensitive to real scientists. Once again, [[Randall]] has devised a new way to annoy a very sizable proportion of the scientific community.&lt;br /&gt;
&lt;br /&gt;
This comic appeared a few days after renewed suggestions that life may exist [https://www.space.com/saturn-moon-enceladus-ocean-phosphorus within one of Saturn's moons].&lt;br /&gt;
&lt;br /&gt;
The title text may be facetious, having to do with unwelcoming or inconsiderate {{w|fandom}}s (or scientists who are annoyed at being called &amp;quot;fans of the universe&amp;quot;), or it could be sincere.&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
{{incomplete transcript|Do NOT delete this tag too soon.}}&lt;br /&gt;
:[Ponytail, Cueball, White Hat, and Megan standing in a line. Cueball has his hand raised, and Megan has hands balled into fists, exasperated.]&lt;br /&gt;
:Cueball: But according to leading fan theories, Jupiter's moons may harbor subsurface oceans.&lt;br /&gt;
:Megan: Will you ''please'' stop calling them that?&lt;br /&gt;
&lt;br /&gt;
:[Caption below the panel:]&lt;br /&gt;
:How to annoy scientists: refer to all hypotheses as &amp;quot;fan theories&amp;quot;&lt;br /&gt;
 &lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
[[Category:Science]]&lt;br /&gt;
[[Category:Astronomy]]&lt;br /&gt;
[[Category:Comics featuring Ponytail]]&lt;br /&gt;
[[Category:Comics featuring Cueball]]&lt;br /&gt;
[[Category:Comics featuring White Hat]]&lt;br /&gt;
[[Category:Comics featuring Megan]]&lt;/div&gt;</summary>
		<author><name>NotaBene</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2682:_Easy_Or_Hard&amp;diff=296260</id>
		<title>2682: Easy Or Hard</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2682:_Easy_Or_Hard&amp;diff=296260"/>
				<updated>2022-10-08T19:57:22Z</updated>
		
		<summary type="html">&lt;p&gt;NotaBene: /* Explanation */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 2682&lt;br /&gt;
| date      = October 7, 2022&lt;br /&gt;
| title     = Easy Or Hard&lt;br /&gt;
| image     = easy_or_hard_2x.png&lt;br /&gt;
| imagesize = 740x400px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = &amp;quot;Friction-driven static electrification is familiar and fundamental in daily life, industry, and technology, but its basics have long been unknown and have continually perplexed scientists from ancient Greece to the high-tech era. [...] To date, no single theory can satisfactorily explain this mysterious but fundamental phenomenon.&amp;quot; --Eui-Cheol Shin et. al. (2022)&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
{{incomplete|Created by THE EIFFEL TOWER TAKING A TYLENOL - Do NOT delete this tag too soon.}}&lt;br /&gt;
&lt;br /&gt;
This comic uses a table to compare the perceived difficulty of various questions with how easily they're answered in real life.  [[Randall]] has a long history of comics with similar themes, comparing perceptions to reality.  In this case, both the perception and the reality are divided into three levels of difficulty, giving a total of nine categories.  Accordingly three of the problems listed are effectively as difficult as one would expect, and the remaining six are not. All three of the questions whose answers are &amp;quot;actually pretty easy to find out&amp;quot; relate to the Eiffel Tower, though there's no apparent theme among the other six questions. &lt;br /&gt;
&lt;br /&gt;
It's likely that this comic was at least partially inspired by writing the books ''[[How To|How To: Absurd Scientific Advice for Common Real-World Problems]]'', [[what if|''What if?'', and ''What If? 2'']], which was published just a few weeks before this comic.  These books involve answering very elaborate questions from a scientific point of view. This process likely emphasized that some really strange questions are actually difficult to answer, while some questions that seem simple continue to confound scientific knowledge. ''What if? 2'' mentions the fact that no one understands why static charges separate.&lt;br /&gt;
&lt;br /&gt;
{| class=&amp;quot;wikitable&amp;quot;&lt;br /&gt;
|-&lt;br /&gt;
! Question !! Perceived Difficulty !! Real Difficulty !! Explanation&lt;br /&gt;
|-&lt;br /&gt;
|How tall is the Eiffel Tower?||Easy||Easy||The height of any structure that can be easily observed can be calculated without much difficulty. The Eiffel Tower was constructed to be the centerpiece of the {{w|1889 World's Fair}}. At the time of its construction, it was the tallest man-made structure on earth, which meant that its height was widely publicized since it was first constructed (330 meters, or 1083 feet). This number is widely published, and easily confirmed. &lt;br /&gt;
|-&lt;br /&gt;
|Where was Mars in the sky from Paris on the day the Eiffel Tower opened?||Difficult||Easy||The date of the opening of the tower to the public is well known (May 6, 1889). Since the motions of the planets are predictable, one would expect that the position of Mars in the Paris sky on that date could be easily calculated eg. using [https://in-the-sky.org/skymap.php?no_cookie=1&amp;amp;latitude=48.85&amp;amp;longitude=2.35&amp;amp;timezone=1.00&amp;amp;year=1889&amp;amp;month=5&amp;amp;day=6&amp;amp;hour=9&amp;amp;min=0&amp;amp;PLlimitmag=2&amp;amp;zoom=182&amp;amp;ra=3.78242&amp;amp;dec=20.26465 online tools] (it was in the constellation of Taurus, and extremely close to where the Sun also was in the sky during that time so probably not easily directly observable).&lt;br /&gt;
|-&lt;br /&gt;
|How much does the {{w|Eiffel Tower}}'s gravity deflect baseballs in Boston?||Near Impossible||Easy||This problem sounds extremely specific and esoteric, concerning an effect far too small for direct experimentation.  But in theory, it's actually a very simple physics problem.  {{w|Newton's law of universal gravitation|Gravitational acceleration}} is determined entirely by masses and distance, and here even the mass of the baseball can be ignored.  Since the mass of the Eiffel Tower and the geographic details of both the tower in Paris and any given location in Boston (perhaps {{w|Fenway Park}}, a famous baseball stadium) are easy to look up, the calculation is quite simple.&lt;br /&gt;
|-&lt;br /&gt;
|How does {{w|general anesthesia}} work?||Easy||Difficult||While biology is always complex, inducing unconsciousness seems relatively simple. In fact, keeping a person unconscious and insensate without causing permanent damage or death is a difficult proposition, requiring a medical specialist. Despite this field being well-established, it might surprise people to know that {{w|Theories of general anaesthetic action|the mechanism of general anesthesia}} is still the subject of research, and recent studies have revealed things that we didn't previously understand.&lt;br /&gt;
|-&lt;br /&gt;
|How many ants are there?||Difficult||Difficult||While the existence of ants is a mundane part of life for many people, there are so many of them that coming up with a total number of ants in the whole world sounds exceedingly difficult.  It is, in fact, a difficult problem, but experts have done a significant amount of work and have come up with well-founded estimates [https://phys.org/news/2022-09-ants-earth-quadrillion.html in the range of 20 quadrillion ants on earth].&lt;br /&gt;
|-&lt;br /&gt;
|What time of year did the {{w|Cretaceous–Paleogene extinction event|Cretaceous impact}} happen?||Near Impossible||Difficult||The &amp;quot;Cretaceous impact&amp;quot; happened approximately 66 million ago. The margins of error on calculating something that ancient are necessarily thousands of years wide at least, the notion of determining the time of year seems impossible. In fact, the problem is a difficult one, but many of the animals killed in the impact were fossilized, and comparing those fossils to seasonal growth cycles [https://www.science.org/content/article/springtime-was-season-dinosaurs-died-ancient-fish-fossils-suggest has led to the suggestion that the impact happened in spring in the northern hemisphere.]&lt;br /&gt;
|-&lt;br /&gt;
|Why does your hair get a static charge when you rub it with a balloon?||Easy||Near Impossible||Inducing a {{w|Static electricity|static charge}} by {{w|Triboelectric effect|rubbing together two materials}} is a method that's been known since ancient times. Since human hair has a marked tendency to develop a positive charge, and the latex commonly used in balloons tends to develop a negative charge, rubbing the two together is a very simple way to create an electric field. This process is so simple that it's used for both party tricks and as a fun demonstration of electrical phenomena. Because of this simplicity, most people would assume that the phenomenon is well understood. So it's surprising that the actual mechanism remains an unsolved problem in physics. This also has previously been mentioned in [[1867: Physics Confession]]. The title text quotes [https://www.researchgate.net/publication/360674587_Derivation_of_a_governing_rule_in_triboelectric_charging_and_series_from_thermoelectricity a paper] explaining that, as common as this phenomenon is, there's still no theory that can adequately explain what we observe.&lt;br /&gt;
|-&lt;br /&gt;
|How does {{w|Tylenol (brand)|Tylenol}} work?||Difficult||Near Impossible||Tylenol is a brand name for {{w|Paracetamol|paracetamol, also known as acetaminophen}}, a drug commonly sold without prescription for pain relief and fever reduction. This drug has been widely used since 1950, and has been well established as being both effective and safe when used properly. Although one would expect the biological mechanism for any drug to be complicated, most people would assume that a drug that's been widely used and studied for so long to be well-documented.  Surprisingly, however, the precise action still isn't fully understood.&lt;br /&gt;
|-&lt;br /&gt;
|How can {{w|Theory of relativity|relativity}} be reconciled with {{w|quantum mechanics}}?||Near Impossible||Near Impossible||This remains one of the {{w|Theory of everything|great unsolved questions}} in physics. The problem sounds almost unsolvable to laypeople, and remains unsolved even to experts in the field.&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
{{incomplete transcript|Do NOT delete this tag too soon.}}&lt;br /&gt;
{| class=&amp;quot;wikitable&amp;quot;&lt;br /&gt;
|-&lt;br /&gt;
!   !! Actually pretty easy to find out !! Very hard, but there have been recent breakthroughs !! Extremely hard, currently unsolved&lt;br /&gt;
|-&lt;br /&gt;
! Sounds borderline unsolvable&lt;br /&gt;
|How much does the Eiffel Tower's gravity deflect baseballs in Boston?||What time of year did the cretaceous impact happen?||How can relativity be reconciled with quantum mechanics?&lt;br /&gt;
|-&lt;br /&gt;
! Sounds pretty hard, but you'd assume someone knows&lt;br /&gt;
|Where was Mars in the sky from Paris on the day the Eiffel Tower opened?||How many ants are there?||How does Tylenol work?&lt;br /&gt;
|-&lt;br /&gt;
! Sounds like it would be easy to look up&lt;br /&gt;
|How tall is the Eiffel Tower?||How does general anesthesia work?||Why does your hair get a static charge when you rub it with a balloon?&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
[[Category:Charts]]&lt;br /&gt;
[[Category:Science]]&lt;br /&gt;
[[Category:Animals]]&lt;br /&gt;
[[Category:Medicine]]&lt;br /&gt;
[[Category:Physics]]&lt;br /&gt;
[[Category:Astronomy]]&lt;/div&gt;</summary>
		<author><name>NotaBene</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2679:_Quantified_Self&amp;diff=295769</id>
		<title>2679: Quantified Self</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2679:_Quantified_Self&amp;diff=295769"/>
				<updated>2022-10-01T00:36:15Z</updated>
		
		<summary type="html">&lt;p&gt;NotaBene: /* Explanation */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 2679&lt;br /&gt;
| date      = September 30, 2022&lt;br /&gt;
| title     = Quantified Self&lt;br /&gt;
| image     = quantified_self_2x.png&lt;br /&gt;
| imagesize = 386x328px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = It's made me way more excited about ferris wheels, subways, car washes, waterslides, and store entrances that have double doors with a divider in the middle.&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
{{incomplete|Created by a PERSON STRANGLED TO DEATH WITH IMAGINARY PATH-STRING - Please change this comment when editing this page. Do NOT delete this tag too soon.}}&lt;br /&gt;
&lt;br /&gt;
[[Cueball]] (presumably a representation of [[Randall]] in this comic) is talking about how he embraces the {{w|quantified self}}, a popular philosophy promoting monitoring yourself with devices and data in the hope to help your well-being. He claims to apply this philosophy to his life, but as is usual for Randall, he does so in his very unique and absurdly humorous way, with help from a handheld mobile device.&lt;br /&gt;
&lt;br /&gt;
Typically, fitness apps and the like will track the number of steps that users take and distances walked or run.  This is to encourage users to be more physically active.  However, Randall has chosen to track a modified version of this metric, in which his path is post-processed by contracting it (perhaps on a weekly or daily basis).  Normally, people begin and end their days in bed, so the path would shrink away to nothing (much like [[2320: Millennium Problems|flaws in the proof of the Poincaré conjecture]]), except that it can get 'caught' where Randall has passed through topological tunnels.  In the comic strip, we see that, over the course of his week, Randall has looped around his house twice (which could itself conceal any number of activities, so long as he left through his front door and returned through his back door) and crossed under two highway overpasses, a highway sign, and the St. Louis {{w|Gateway Arch}} (or a facsimile thereof) before almost returning home.&lt;br /&gt;
&lt;br /&gt;
This comic appeared two days after [https://blog.google/products/search/new-ways-to-make-more-sustainable-choices/ Google's announcement that Maps Directions will be sortable by sustainability.]&lt;br /&gt;
&lt;br /&gt;
The title text mentions all the things that become useful adjuncts to this way of thinking and measuring, such as passing (one way) through any tube, tunnel or frame made of solid material that could thus capture the imaginary string and help to keep its ultimate distance as lengthy as possible.&lt;br /&gt;
&lt;br /&gt;
===OCD interpretation===&lt;br /&gt;
&lt;br /&gt;
The quantity Randall measures can be recognized as a specific type of OCD where people feel like they have an imaginary string connecting them to where they come from.{{Actual citation needed}} As they move around, that string gets entangled and they feel the urge to untangle it.  When they enter a car, they feel the need to exit the car from the same door, to avoid that the string gets trapped by forever passing through the car.  When they enter a building, they feel they need to exit using the same staircases and doorway(s), to avoid entangling the string in the building. Some situations, like turning around a lamp post, are OK because you can imagine removing the loop over the top of the lamp post, such that it is not really entangled.&lt;br /&gt;
&lt;br /&gt;
Randall tries a new approach to deal with this OCD by integrating it in his quantified self.  He defines precisely how to measure the length of the imaginary string, reduced to its minimum, and chooses this as a quantity to monitor. Unlike most people with this OCD, who feel the urge to minimize the length, Randall takes the opposite stance and actually tries to maximize the (optimally minimal) length of the string.&lt;br /&gt;
&lt;br /&gt;
This could be thought as a therapy.  By defining as a target to achieve a given length every day, he creates a drive to embrace situations that entangle the string.  This drive opposes the natural compulsion to avoid them and hopefully cancels it.  The joke of the title text is that Randall now becomes overly interested in all the things that are disturbing for people with the OCD.  The monitoring has just reversed his obsession.&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
{{incomplete transcript|Do NOT delete this tag too soon.}}&lt;br /&gt;
&lt;br /&gt;
[A red path links two red Cueballs. It start from the left Cueball, does two loops through a small house, under a first road bridge, under a gantry sign, under a second road bridge, under the Gateway Arch, and to a second red Cueball on the right. That Cueball is looking at a smart watch on its wrist.]&lt;br /&gt;
&lt;br /&gt;
:Red Cueball's watch: Good job! You hit your weekly goal for &amp;quot;total length of your path through space if you minimize its length by pulling it taut, maneuvering it around solid objects but not through them.&amp;quot;&lt;br /&gt;
&lt;br /&gt;
:Below the panel: I'm into the quantified self, but only for really arbitrary quantities.&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
&lt;br /&gt;
[[Category:Comics with color]]&lt;/div&gt;</summary>
		<author><name>NotaBene</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2675:_Pilot_Priority_List&amp;diff=295269</id>
		<title>2675: Pilot Priority List</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2675:_Pilot_Priority_List&amp;diff=295269"/>
				<updated>2022-09-22T17:47:43Z</updated>
		
		<summary type="html">&lt;p&gt;NotaBene: /* Table of extended priority items */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 2675&lt;br /&gt;
| date      = September 21, 2022&lt;br /&gt;
| title     = Pilot Priority List&lt;br /&gt;
| image     = pilot_priority_list_2x.png&lt;br /&gt;
| imagesize = 369x548px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = CELEBRATE: Serve passengers tiered cakes shaped like the airspace class diagram&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
{{incomplete|Created by an ELUCIDATE, EXPLICATE, ANNOTATE, DEMONSTRATE, AND ILLUSTRATE CHECKLIST. Do NOT delete this tag too soon.}}&lt;br /&gt;
&lt;br /&gt;
The [https://elevate-aviation.com/blog/pilots-priority-checklist &amp;quot;ANC&amp;quot; Pilot Priority Checklist] is a list of three guidelines, sorted by priority, that pilots should follow to prevent them from being distracted. Failing to follow it might make the plane crash or suffer other problems. As a {{w|mnemonic}} device, all the activities end in ''-ate''.&lt;br /&gt;
&lt;br /&gt;
# '''Aviate''' means &amp;quot;Keeping the plane in control&amp;quot;. If the pilot fails to do this the plane might crash. That is why this should be the highest priority for the pilot.&lt;br /&gt;
# '''Navigate''' means &amp;quot;Knowing where you are and where you're going&amp;quot;. Failing to follow this might make the plane go into restricted airspace, for example, or make the journey take too long, or cause the flight to crash into terrain obscured by clouds.&lt;br /&gt;
# '''Communicate''' means talking with air traffic control (ATC) and your company's people through the radio. In the standard list, this is the lowest priority because talking through the radio might distract the pilot from other more important or urgent tasks, and purely corporate communications are to be avoided during critical flight phases.&lt;br /&gt;
&lt;br /&gt;
By deferring all activities until the prior need is deemed satisfied, the immediate dangers of {{w|United Airlines Flight 173|UFIT}} and {{w|Controlled flight into terrain|CFIT}} are proportionately reduced (insofar as any pilot's {{w|Loss of control (aeronautics)|current circumstances}} allow) and yet leave time to  be able to coordinate properly with any {{w|Separation (aeronautics)|other hazards}}.&lt;br /&gt;
&lt;br /&gt;
[[Randall]] humorously &amp;quot;extends&amp;quot; this standard list with other ''-ate'' checklist items that pilots could do if they're not too busy aviating, navigating and communicating. These extra tasks go from somewhat hilarious to physically impossible or dangerous, see the [[#Table of extended priority items|table]] below for explanations. These actions {{w|Sterile flight deck rule|should generally not be taken}}, as they could distract the pilot and prevent them from reaching the cabin in case of an emergency, or simply vaporize everyone inside — including the plane itself.&lt;br /&gt;
&lt;br /&gt;
The title text adds another ''-ate'' to the check list with Celebrate. It refers to airspace with stricter entry requirements overhead of large airports. In the US, the {{w|Airspace_class_(United_States)|airspace class}} over, for instance an airport, starts with a small circle over the airport and then becomes wider in one or two steps at higher altitudes. When depicted graphically, this looks like an {{w|File:Airspace classes (United States).png|inverted tiered cake}}, as opposed to a [https://3brothersbakery.com/product/wedding-white-chandelier-tier/ regular tiered cake]. Randall suggests that after having congratulated yourself for flying a plane, you could then celebrate by serving the passengers cakes in this inverted shape. It would, however, be unsuitable for a plane to serve cakes that are smaller at the bottom than at the top because of turbulence.&lt;br /&gt;
&lt;br /&gt;
===Table of extended priority items===&lt;br /&gt;
{| class=&amp;quot;wikitable&amp;quot;&lt;br /&gt;
! Checklist item&lt;br /&gt;
! Description&lt;br /&gt;
! Explanation&lt;br /&gt;
|-&lt;br /&gt;
| Decorate || Make the cockpit fancy || {{w|Interior design}} of aircraft cockpits is usually starkly utilitarian and could conceivably benefit from enhancements if they aren't distracting.&lt;br /&gt;
|-&lt;br /&gt;
| Accelerate || See how fast you can go || While pilots are often keenly interested in the extents of their aircraft flight capabilities, maximum speed is inefficient in jet aircraft, and probably best explored during testing rather than passenger flights.&lt;br /&gt;
|-&lt;br /&gt;
| Roller skate || Zoom down the aisle || Passengers would probably not appreciate this,{{cn}} although fellow crew members might be amused.&lt;br /&gt;
|-&lt;br /&gt;
| Exfoliate || Scrub away dead skin || {{w|Emery board}}s and {{w|pumice}} are used to prevent flaking and the development of {{w|callus}}es but dermatologists caution exfoliation is very often unnecessary and can have unwanted consequences.&lt;br /&gt;
|-&lt;br /&gt;
| Sublimate || Turn directly into a vapor || To the contrary, one of the most important duties of aircraft pilots is to prevent passengers and crew from vaporizing.{{cn}}&lt;br /&gt;
|-&lt;br /&gt;
| Pollinate || Fly low to stir up pollen || Low-flying helicopters can assist in plant {{w|pollination}},[https://www.sciencedirect.com/science/article/abs/pii/S037842901931175X] and are offered as a [http://www.flyingmair.com/ag-services/corn-pollination/ commercial service by helicopter pilots.]&lt;br /&gt;
|-&lt;br /&gt;
| Congratulate || You're doing a good job flying a plane! || Self-esteem is an important component of mental health, and encouragement can help build it.{{cn}}&lt;br /&gt;
|-&lt;br /&gt;
| Celebrate (title text) || Serve passengers tiered cakes shaped like the airspace class diagram || See discussion of the title text above.&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
:[A list with ten numbered points are shown. Above the list is a large header. Below this is a divided line with a section header written in a smaller than standard font. The three first numbered points are below this. Then follows another divided line with section header written in smaller font and below this the next seven numbered points. All ten points have two lines of text. A line with a normal sized font and below each of these a description in a smaller light gray font.]&lt;br /&gt;
::&amp;lt;big&amp;gt;Pilot Priority List&amp;lt;/big&amp;gt;&lt;br /&gt;
:-----------&amp;lt;small&amp;gt;Standard section&amp;lt;/small&amp;gt;-----------&lt;br /&gt;
:1. Aviate&lt;br /&gt;
::&amp;lt;small&amp;gt;&amp;lt;font color=&amp;quot;gray&amp;quot;&amp;gt;Maintain control of the aircraft&amp;lt;/font&amp;gt;&amp;lt;/small&amp;gt;&lt;br /&gt;
:2. Navigate&lt;br /&gt;
::&amp;lt;small&amp;gt;&amp;lt;font color=&amp;quot;gray&amp;quot;&amp;gt;Figure out where you're going&amp;lt;/font&amp;gt;&amp;lt;/small&amp;gt;&lt;br /&gt;
:3. Communicate&lt;br /&gt;
::&amp;lt;small&amp;gt;&amp;lt;font color=&amp;quot;gray&amp;quot;&amp;gt;Stay in touch with ATC and others&amp;lt;/font&amp;gt;&amp;lt;/small&amp;gt;&lt;br /&gt;
:-----------&amp;lt;small&amp;gt;Extended section&amp;lt;/small&amp;gt;-----------&lt;br /&gt;
:4. Decorate&lt;br /&gt;
::&amp;lt;small&amp;gt;&amp;lt;font color=&amp;quot;gray&amp;quot;&amp;gt;Make the cockpit fancy&amp;lt;/font&amp;gt;&amp;lt;/small&amp;gt;&lt;br /&gt;
:5. Accelerate&lt;br /&gt;
::&amp;lt;small&amp;gt;&amp;lt;font color=&amp;quot;gray&amp;quot;&amp;gt;See how fast you can go&amp;lt;/font&amp;gt;&amp;lt;/small&amp;gt;&lt;br /&gt;
:6. Roller skate&lt;br /&gt;
::&amp;lt;small&amp;gt;&amp;lt;font color=&amp;quot;gray&amp;quot;&amp;gt;Zoom down the aisle&amp;lt;/font&amp;gt;&amp;lt;/small&amp;gt;&lt;br /&gt;
:7. Exfoliate&lt;br /&gt;
::&amp;lt;small&amp;gt;&amp;lt;font color=&amp;quot;gray&amp;quot;&amp;gt;Scrub away dead skin&amp;lt;/font&amp;gt;&amp;lt;/small&amp;gt;&lt;br /&gt;
:8. Sublimate&lt;br /&gt;
::&amp;lt;small&amp;gt;&amp;lt;font color=&amp;quot;gray&amp;quot;&amp;gt;Turn directly to a vapor&amp;lt;/font&amp;gt;&amp;lt;/small&amp;gt;&lt;br /&gt;
:9. Pollinate&lt;br /&gt;
::&amp;lt;small&amp;gt;&amp;lt;font color=&amp;quot;gray&amp;quot;&amp;gt;Fly low to stir up pollen&amp;lt;/font&amp;gt;&amp;lt;/small&amp;gt;&lt;br /&gt;
:10. Congratulate&lt;br /&gt;
::&amp;lt;small&amp;gt;&amp;lt;font color=&amp;quot;gray&amp;quot;&amp;gt;You're doing a good job flying a plane!&amp;lt;/font&amp;gt;&amp;lt;/small&amp;gt;&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
&lt;br /&gt;
[[Category:Food]]&lt;/div&gt;</summary>
		<author><name>NotaBene</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2674:_Everyday_Carry&amp;diff=295128</id>
		<title>2674: Everyday Carry</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2674:_Everyday_Carry&amp;diff=295128"/>
				<updated>2022-09-20T15:44:35Z</updated>
		
		<summary type="html">&lt;p&gt;NotaBene: /* Explanation */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 2674&lt;br /&gt;
| date      = September 19, 2022&lt;br /&gt;
| title     = Everyday Carry&lt;br /&gt;
| image     = everyday_carry_2x.png&lt;br /&gt;
| imagesize = 370x310px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = Someday I just know I'm going to encounter a problem that requires 500 flashlights and 700 knives with weird holes in them, and on that day I won't be caught unprepared.&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
{{incomplete|Created by a FLASHLIGHT WITH WEIRD HOLES IN IT - Please change this comment when editing this page. Do NOT delete this tag too soon.}}&lt;br /&gt;
{{w|Everyday carry}} (EDC) is a [https://www.vox.com/the-goods/2019/7/24/20696487/everyday-carry-reddit-knife-wallet-gun subculture on the Internet] of emergency preparedness, and is a group of things that should be &amp;quot;every day carried&amp;quot; by someone at all times. Such items should perhaps be considered as multifunction items with many varied and distinct uses, to save lugging about a whole set of more specialised items 'just in case', or at least largely complementary to other such items in the manner of a {{w|capsule wardrobe}}.&lt;br /&gt;
&lt;br /&gt;
Rather than carefully consider the relative advantages of various advertised EDCs, Cueball seems to have taken the advertising of all such every day carry items at individual face value and purchased ''all'' of the items he can, and furthermore is actually taking all of them with him. The result is that he has so many items that he now has to wear a heavily augmented backpack at all times, and furthermore needs to tow a large cart loaded with additional cases and a large sack to contain the bulk of his ever-present hundreds of knives and other tools, equipment, and gear.&lt;br /&gt;
&lt;br /&gt;
In the title text, his hope is that he will one day be vindicated by encoutering one particularly complex problem where a massive number of individual light-sources and cutting tools will be simultaneously needed – perhaps one in which hundreds of people need to be so equipped – and then at last he will be reasonably equipped to handle it!&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
{{incomplete transcript|Do NOT delete this tag too soon.}}&lt;br /&gt;
&lt;br /&gt;
:[Cueball is standing and straining backwards, dragging a large sack nearly the size as him, with noticeable bulges. It is placed on top of two long, flat boxes on top of a flat, four-wheeled trolley. Motion lines indicate the trolley is rolling towards Cueball and his hands are shaking. Cueball is also wearing a large backpack with multiple compartments. The backpack, boxes and sack are all labelled &amp;quot;EDC&amp;quot;]&lt;br /&gt;
&lt;br /&gt;
:[Caption under the panel:]&lt;br /&gt;
:It was hard work collecting all the everyday carry products on the Internet, but now I'm finally ready for anything.&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
[[Category: Comics featuring Cueball]]&lt;/div&gt;</summary>
		<author><name>NotaBene</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2671:_Rotation&amp;diff=294741</id>
		<title>2671: Rotation</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2671:_Rotation&amp;diff=294741"/>
				<updated>2022-09-13T12:35:31Z</updated>
		
		<summary type="html">&lt;p&gt;NotaBene: /* Explanation */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 2671&lt;br /&gt;
| date      = September 12, 2022&lt;br /&gt;
| title     = Rotation&lt;br /&gt;
| image     = rotation.png&lt;br /&gt;
| titletext = It's okay, we can just feed the one-pixel image into an AI upscaler and recover the original image, or at least one that's just as cool.&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
{{incomplete|Created by an IMAGE UPSCALER. Do NOT delete this tag too soon.}}&lt;br /&gt;
&lt;br /&gt;
Another of [[Randall]]'s [[:Category:Tips|Tips]], this tip claims that rotating a phone and taking a screenshot too many times will cause an image to disappear into nothingness as it will become smaller than the planck length, and warns the user against doing so. This is absurd because the camera and the display both have limited resolutions. The detail of the original screenshot at the center of the image will be aggregated out as it approaches the range of a few pixels, hence the original image will be lost before it reaches the sub-pixel range. Camera phone users are unlikely to do this, as screenshotting in an incorrect rotation beyond one or two levels already produces obvious undesirable padding and most users will crop it out or refrain from taking such a screenshot.&lt;br /&gt;
&lt;br /&gt;
[[Image:World lines and world sheet.svg|thumb|200px|{{w|String theory}} describes the {{w|worldline}}s of point-like particles as {{w|worldsheet}}s of &amp;quot;closed strings,&amp;quot; forming a topological  foam.]]&lt;br /&gt;
&lt;br /&gt;
For a fuller explanation of the concepts involved, including {{w|Planck units}}, often associated with the topological {{w|quantum foam}} of {{w|string theory}}, please see [https://www.youtube.com/watch?v=pUF5esTscZI this CGP Grey video.] For an explanation of topological string theory, see [[2658: Coffee Cup Holes]].&lt;br /&gt;
&lt;br /&gt;
The title text refers to producing photographically likely higher resolution images from lower resolutions, an active area of current research.[https://openaccess.thecvf.com/content/ICCV2021/papers/Liang_Hierarchical_Conditional_Flow_A_Unified_Framework_for_Image_Super-Resolution_and_ICCV_2021_paper.pdf] Because reducing the resolution of an image is a lossy process, results obtained through such processes will not be able to perfectly recreate the original. Machine learning can be used to calculate how images of known photographic subjects (or e.g. anime-style art, in the case of {{w|waifu2x}}) behave under certain types of noise or reduction in size, so that images ''of those kinds'' can be upscaled in a way that, if not perfectly recreating the original, at least is a faithful representation, but when the image is scaled all the way down to one pixel, everything except a small amount of data about the image's overall color is lost, making reconstructing the original image impossible. Randall disclaims that, because the AI upscaling is based on ingesting a large corpus of human-made art (with subjects that we find 'interesting' or at least meaningful being predominantly represented), the AI will produce an image that is at least as cool as the original image was.  He could also be making a pun on {{w|color temperature}}, which the upscaler will be able to match to the original image. The &amp;quot;[https://tvtropes.org/pmwiki/pmwiki.php/Main/EnhanceButton enhance button]&amp;quot; for upscaling images is a common trope in movies and television, especially in crime and science fiction stories.&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
{{incomplete transcript|Do NOT delete this tag too soon.}}&lt;br /&gt;
&lt;br /&gt;
:[A phone in portrait orientation shows an image of Cueball standing. It is then rotated, showing the image smaller with bars in landscape orientation, then the next phone is in portrait showing the entire screen of the previous rotated sideways, shrinking it every time. An arrow points from each phone to the phone with the next smaller image, until the last one. The labels, at the 9th, 25th, and 101st rotation, show the decreasing size of the original image as it goes through successive rotations.]&lt;br /&gt;
&lt;br /&gt;
:[Labels:]&lt;br /&gt;
:9 rotations: original image is smaller than a pixel.&lt;br /&gt;
&lt;br /&gt;
:25 rotations: original image is smaller than an atom.&lt;br /&gt;
&lt;br /&gt;
:101 rotations: original image is smaller than the Planck length, at which the concept of distance may break down.&lt;br /&gt;
&lt;br /&gt;
:[Bottom caption:]&lt;br /&gt;
:Phone tip: don't rotate and screenshot an image too many times or it will become lost in the quantum foam of the universe.&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
[[Category:Tips]]&lt;br /&gt;
[[Category:Smartphones]]&lt;br /&gt;
[[Category:Comics featuring Cueball]]&lt;/div&gt;</summary>
		<author><name>NotaBene</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2666:_Universe_Price_Tiers&amp;diff=293901</id>
		<title>2666: Universe Price Tiers</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2666:_Universe_Price_Tiers&amp;diff=293901"/>
				<updated>2022-09-01T15:20:50Z</updated>
		
		<summary type="html">&lt;p&gt;NotaBene: /* Explanation */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 2666&lt;br /&gt;
| date      = August 31, 2022&lt;br /&gt;
| title     = Universe Price Tiers&lt;br /&gt;
| image     = universe_price_tiers.png&lt;br /&gt;
| titletext = In Universe Pro®™ the laws of physics remain unchanged under time reversal, to maintain backward compatibility.&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
{{incomplete|Created by a SOWN WIND - Explained the main point, more details needed. Please change this comment when editing the page . Do NOT delete this tag too soon.}}&lt;br /&gt;
Philosophers have posed many questions in trying to understand the nature of the universe. Some of these have become well-known in popular culture; while some are deliberately open-ended, several others are presented as a choice between two or more options, and are assumed to have a single answer, the debate being about which is correct. In this comic, Randall proposes that the answers to these questions are instead not fixed, but vary according to a tiered {{w|subscription business model}}, as seen in many business pricing schemes, particularly in software. In this model, the no-cost tier gets you a universe experience of a lower quality, while at higher tiers better options are available for a cost - for example in the highest tier the processes of aging and death are &amp;quot;Opt-in&amp;quot; rather than &amp;quot;Mandatory&amp;quot;. It is not clear from the comic who is supposed to be paying these subscription fees, or to whom they are paid (presumably the developers or maintainers of the universe, or the {{w|Simulation hypothesis|hypothesized simulation thereof}}), or whose experience of the universe is supposed to be affected.&lt;br /&gt;
&lt;br /&gt;
The universe does not have a subscription model,{{citation needed}} but on the chart  some of the categories that refer to observable properties such as the speed limit or existence of the {{w|Uncertainty Principle}} indicate ours is the Universe Standard® subscription, but other specifications may not entirely match our user experience.&lt;br /&gt;
&lt;br /&gt;
The title text refers to the concept of {{w|T-symmetry}} in physical laws. Most properties of our universe are asymmetric, meaning that the property changes if time is reversed (e.g. the entropy of the universe decreases as time flows backwards). Randall again makes a reference to software subscription models in a play on words as the Universe Pro®™ sub appears to have laws that maintain &amp;quot;backwards compatibility&amp;quot;.&lt;br /&gt;
&lt;br /&gt;
{| class=&amp;quot;wikitable&amp;quot;&lt;br /&gt;
|-&lt;br /&gt;
!   !! Universe Lite™ !! Universe Standard® !! Universe Pro®™!!Explanation&lt;br /&gt;
|-&lt;br /&gt;
! Price &lt;br /&gt;
| Free || $14.95/month || $49.95/month || Indicative of a typical Freemium product, the versions released include what is effectively an 'unlimited trial' version, but lacking some potentially desired features, and then extra tiers with increased functionality so that you can &amp;quot;get what you pay for&amp;quot;.&lt;br /&gt;
|-&lt;br /&gt;
! Ads&lt;br /&gt;
| Yes || Yes || No || There are indeed ads in our own universe, but whether they are an intrinsic property of the universe or not is an open question.&lt;br /&gt;
|-&lt;br /&gt;
! Number of angels that can dance on the head of a pin&lt;br /&gt;
| 4 || 64 || 4,096 || &amp;quot;{{w|How many angels can dance on the head of a pin?}}&amp;quot; is a question used to poke fun at medieval angelology and medieval scholasticism in general by claiming discussions in its fields revolve around meaningless questions. It is also used as a metaphor for wasting time debating useless questions, as it is generally accepted that we can have no definititive answer. Here, the question is given concrete answers that are powers of 2 often seen when using binary representation. It may also be a reference to [[485: Depth]].&lt;br /&gt;
|-&lt;br /&gt;
! Free will or determinism &lt;br /&gt;
| Determinism || Free will || Free will || Another predominantly philosophical issue, although physics (both Newtonian and Quantum) has not shied away from trying to answer this (see Does God Play Dice? below).  It is interesting that the paid versions of the universe are the only ones to include free will, implying that either such a quality is inherently desirable or it is a necessary condition of some other feature in the paid plan (such as, for instance, the aforementioned dice-playing).&lt;br /&gt;
|-&lt;br /&gt;
! Cosmic speed limit &lt;br /&gt;
| 65 mph || 300,000 km/s || Unlimited || The Cosmic speed limit refers to the {{w|speed of light}}, which rounds to 300,000 kilometers per second in our particular universe, one of the few definite clues as to which tier we might exist in.  Living in a universe with such a low speed limit would render many aspects of experience unrecognizable from our own; assuming the speed of light and thus all relativistic effects were similarly scaled, the act of driving at highway speeds would result in [http://gamelab.mit.edu/games/a-slower-speed-of-light/ human-observable] time dilation and apparent spatial distortion.  The idea of having a speed cap is reminiscent of computer simulations and game engines, which often prevent agents from accelerating beyond a certain point to prevent unintended behavior.&lt;br /&gt;
|-&lt;br /&gt;
! If a tree falls in a forest and there's no one there to hear... &lt;br /&gt;
| No sound || Simple beep || Full sound || {{w|If a tree falls in a forest}} is a popular philosophical question whose answer depends largely on one's philosophical belief system and the interpretation of the question itself. Here it's suggested that there is a definite answer which differs depending on the quality of the universe subscription.  On the assumption that &amp;quot;our&amp;quot; universe is on the Standard Plan, this table implies that all trees falling outside of the auditory range of anyone or anything capable of noticing it emit a simplified &amp;quot;beep&amp;quot; sound, rather than the complex crashing one would expect.  Given loose enough assumptions, we cannot &amp;quot;prove&amp;quot; in a classical sense that this is not the case, and this may contribute to the humor of this entry.&lt;br /&gt;
|-&lt;br /&gt;
! Meaning of Life &lt;br /&gt;
| Unknowable || Uncertain || Clearly explained || All we can know is that we (currently) don't know, which makes our universe one almost certainly either with an unknowable or uncertain state of affairs.{{Actual citation needed}}&lt;br /&gt;
|-&lt;br /&gt;
! Sound of one hand clapping &lt;br /&gt;
| [None] || [None] || ''Kazzap!'' || A {{w|Koan}} from Buddhism. Koans deliberately have no answer &amp;amp;mdash; one hand cannot clap, as the sound of two hands clapping relies upon there being two hands percussing and displacing/resonating air. The &amp;quot;Kazzap&amp;quot; referenced is humorous because it provides an answer to something with no answer, in the form of a nonsense onomatopoeia.  To members of our universe, this is absurd.  The implication is that those in the Pro version of the universe have access to this seemingly impossible feat.&lt;br /&gt;
|-&lt;br /&gt;
! Aging and death &lt;br /&gt;
| Mandatory || Mandatory || Opt-in || If this is a mere option, we clearly haven't read (or understood) the online manual or perhaps read the tool-tips.&lt;br /&gt;
|-&lt;br /&gt;
! Does god play dice with the universe? &lt;br /&gt;
| Yes, and he cheats || Yes || No || A reference to a phrase famously ascribed to Einstein (in opposition to the concept of quantum uncertainty) that &amp;quot;God does not play dice with the universe.&amp;quot; This option and the Determinism/Free Will choice, above, are interestingly linked but not necessarily in a way we can comprehend.&lt;br /&gt;
|-&lt;br /&gt;
! Bad things... &lt;br /&gt;
| Happen to good people only || Happen to good and bad people || Don't happen || Relates to whether there is justice, compassion or fairness in the universe, or perhaps if there specifically is not. In theological arguments, this debate is intimately connected with theodicy (the &amp;quot;problem of evil&amp;quot;), but like the existence of free will it is hotly debated in non-theological contexts as well.  &lt;br /&gt;
|-&lt;br /&gt;
! What happens to those who sow the wind &lt;br /&gt;
| Reap the whirlwind || Reap the whirlwind || Lots of crops everywhere || &amp;lt;!-- A famous quote but I need to save before I research this further, and I'm likely to get an Edit Conflict if I take my time to do it and the other things I need to do to provide sufficient Wikilinks for my other additions... --&amp;gt; This is a reference to the famous phrase &amp;quot;sow the wind, reap the whirlwind&amp;quot;, taken from Hosea 8:7. The phrase means that those who do evil without thought to the consequences will receive punishment. However, in Universe Pro®™, where nothing bad happens to anyone, acting rashly results in a tremendous crop yield.&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
{{incomplete transcript|Do NOT delete this tag too soon.}}&lt;br /&gt;
{| class=&amp;quot;wikitable&amp;quot;&lt;br /&gt;
|-&lt;br /&gt;
!   !! Universe Lite™ !! Universe Standard® !! Universe Pro®™&lt;br /&gt;
|-&lt;br /&gt;
! Price &lt;br /&gt;
| Free || $14.95/month || $49.95/month&lt;br /&gt;
|-&lt;br /&gt;
! Ads&lt;br /&gt;
| Yes || Yes || No&lt;br /&gt;
|-&lt;br /&gt;
! Number of angels that can dance on the head of a pin&lt;br /&gt;
| 4 || 64 || 4,096&lt;br /&gt;
|-&lt;br /&gt;
! Free will or determinism &lt;br /&gt;
| Determinism || Free will || Free will&lt;br /&gt;
|-&lt;br /&gt;
! Cosmic speed limit &lt;br /&gt;
| 65mph || 300,000 km/s || Unlimited&lt;br /&gt;
|-&lt;br /&gt;
! If a tree falls in a forest and there's no one there to hear... &lt;br /&gt;
| No sound || Simple beep || Full sound&lt;br /&gt;
|-&lt;br /&gt;
! Meaning of Life &lt;br /&gt;
| Unknowable || Uncertain || Clearly explained&lt;br /&gt;
|-&lt;br /&gt;
! Sound of one hand clapping &lt;br /&gt;
| [None] || [None] || ''Kazzap!''&lt;br /&gt;
|-&lt;br /&gt;
! Aging and death &lt;br /&gt;
| Mandatory || Mandatory || Opt-in&lt;br /&gt;
|-&lt;br /&gt;
! Does god play dice with the universe? &lt;br /&gt;
| Yes, and he cheats || Yes || No&lt;br /&gt;
|-&lt;br /&gt;
! Bad things... &lt;br /&gt;
| Happen to good people only || Happen to good and bad people || Don't happen&lt;br /&gt;
|-&lt;br /&gt;
! What happens to those who sow the wind &lt;br /&gt;
| Reap the whirlwind || Reap the whirlwind || Lots of crops everywhere&lt;br /&gt;
|}&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
[[Category: Philosophy]]&lt;br /&gt;
[[Category: Religion]]&lt;/div&gt;</summary>
		<author><name>NotaBene</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2665:_America_Songs&amp;diff=293849</id>
		<title>2665: America Songs</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2665:_America_Songs&amp;diff=293849"/>
				<updated>2022-08-31T22:34:49Z</updated>
		
		<summary type="html">&lt;p&gt;NotaBene: /* Table of places/things */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 2665&lt;br /&gt;
| date      = August 29, 2022&lt;br /&gt;
| title     = America Songs&lt;br /&gt;
| image     = america_songs.png&lt;br /&gt;
| titletext = Juraaaassic Park, Juraaaassic Park, God shed his grace on theeeee&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
{{incomplete|Created by a JURASSIC PARK SONGWRITER. Do NOT delete this tag too soon.}}&lt;br /&gt;
&lt;br /&gt;
Many songs, particularly those written by Americans, contain the word &amp;quot;America.&amp;quot; These songs usually either praise the United States for its perceived virtues or mock it for its perceived flaws. Regardless of the content of the song, one could likely sing such songs replacing each usage of the word &amp;quot;America&amp;quot; or &amp;quot;American&amp;quot; with another four-syllable word or phrase with emphasis on the second syllable, without disrupting the {{w|cadence}} or meter of the song. Words and phrases like this are said to &amp;quot;{{w|Scansion|scan}}&amp;quot; with the word &amp;quot;America,&amp;quot; which means to conform to that metrical pattern.&lt;br /&gt;
&lt;br /&gt;
The comic provides a list of such names, most of which are locations. While some share virtues or flaws with the United States, most would fit into songs about the United States poorly, and only some are prominent enough to justify a song praising or mocking them. So the substitution is humorous for most of the examples.&lt;br /&gt;
&lt;br /&gt;
Note that inhabitants of some real-world locations mentioned in this comic do not pronounce their names in a way that scans with &amp;quot;America&amp;quot;. Also note that the adjective form of many of the places listed either does not exist or does not fit the same rhythmic structure as &amp;quot;American&amp;quot;. (For instance, while &amp;quot;Antarctican Idiot&amp;quot; scans with &amp;quot;American Idiot&amp;quot;, &amp;quot;St. Petersburgian Idiot&amp;quot; does not; meanwhile, &amp;quot;Canada&amp;quot; does not scan with &amp;quot;America&amp;quot;, but &amp;quot;Canadian&amp;quot; does scan with &amp;quot;American&amp;quot; and was in fact used as such in Weird Al's parody, &amp;quot;{{w|Canadian Idiot}}&amp;quot;.) In these cases, it would be necessary to use the noun form of the name to preserve the song's meter.&lt;br /&gt;
&lt;br /&gt;
The title text provides an example: substituting &amp;quot;{{w|Jurassic Park}}&amp;quot; for &amp;quot;America&amp;quot; in the song &amp;quot;{{w|America the Beautiful}}&amp;quot;.&lt;br /&gt;
&lt;br /&gt;
A similar comparison in &amp;quot;scanning&amp;quot; was made in [[1412: Teenage Mutant Ninja Turtles]].&lt;br /&gt;
&lt;br /&gt;
===Table of places/things===&lt;br /&gt;
{| class=&amp;quot;wikitable&amp;quot;&lt;br /&gt;
! Name || Description&lt;br /&gt;
|-&lt;br /&gt;
! colspan=&amp;quot;2&amp;quot; | Map&lt;br /&gt;
|-&lt;br /&gt;
| Sasketchewan || Spelled incorrectly, should be ''{{w|Saskatchewan}}''. A province in Canada, whose capital is {{w|Regina, Saskatchewan|Regina}} and largest city is {{w|Saskatoon}}.&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Ontario}} || The largest Canadian province by population and 2nd largest by total area. Includes the capital of Canada, {{w|Ottawa}}, and its largest city, {{w|Toronto}}.&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Olympia, Washington|Olympia}} || Capital of the state of {{w|Washington}}.&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Yosemite}} || National park in the state of {{w|California}}. Pronounced &amp;quot;yoh-SEM-ih-tee&amp;quot;.&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Los Angeles}} || Largest city in the state of California, and 2nd largest city in the United States.&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Lake Michigan}} || One of the five {{w|Great Lakes}} in the United States. Borders the states of {{w|Wisconsin}}, {{w|Illinois}}, {{w|Indiana}}, and {{w|Michigan}}.&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Peoria, Illinois|Peoria}} || The county seat of Peoria County, Illinois, and the largest city on the Illinois River. The oldest permanent European settlement in Illinois, according to the Illinois State Archaeological Survey.&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Columbia, Missouri|Columbia}} (MO) || Fourth largest city in the state of {{w|Missouri}}. One of {{w|Columbia#United_States|many cities}} in the US named after {{w|Columbia (personification)|Columbia}}.&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Montpelier, Vermont|Montpelier}} || The capital of the state of {{w|Vermont}}, which is a three syllable word pronounced mont-PEEL-yur and thus is erroneously on this list. However, the demonym &amp;quot;Montpelierite&amp;quot; is in fact four syllables so it can be used for the &amp;quot;American&amp;quot; songs.&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Schenectady, New York|Schenectady}} || City in Schenectady County, {{w|New York}}. In the 19th century, nationally influential companies and industries developed in Schenectady, including {{w|General Electric}} and American Locomotive Company (ALCO).&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Centralia, Pennsylvania|Centralia}} || Near-ghost town in central {{w|Pennsylvania}} due to a {{w|Centralia mine fire|long running mine fire}} burning beneath the town.&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Annapolis, Maryland|Annapolis}} || Capital city of the state of {{w|Maryland}} and home to the {{w|United States Naval Academy}}.&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Columbia, South Carolina|Columbia}} (SC) || Capital of the state of {{w|South Carolina}}. One of {{w|Columbia#United_States|many cities}} in the US named after {{w|Columbia (personification)|Columbia}}.&lt;br /&gt;
|- &lt;br /&gt;
| {{w|Vidalia, Georgia|Vidalia}} || City in the state of {{w|Georgia}}, known for their {{w|Vidalia onion}}s. Vidalia may not actually scan to &amp;quot;America&amp;quot;, as it is pronounced &amp;quot;vy-DALE-yuh&amp;quot;, not &amp;quot;vy-DALE-ee-ah&amp;quot; or &amp;quot;vee-DAHL-ee-ah&amp;quot;.&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Acadia National Park|Acadia}} || National park in the state of {{w|Maine}}.&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Connecticut}} || US State, whose capital is {{w|Hartford, Connecticut|Hartford}} and largest city is {{w|Bridgeport, Connecticut|Bridgeport}}.&lt;br /&gt;
|-&lt;br /&gt;
| {{w|LaGuardia Airport|LaGuardia}} || One of the three major airports in {{w|New York City}} metropolitan area, named after former mayor {{w|Fiorello La Guardia}}. Described in 2014 by then-Vice President Joe Biden as being like a &amp;quot;third-world country.&amp;quot;&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Virginia Beach}} || Most populous city in the state of {{w|Virginia}}.&lt;br /&gt;
|-&lt;br /&gt;
| {{w|The Villages, Florida|The Villages}} || An unincorporated senior living community in the state of {{w|Florida}}. Notable for its local newspaper, ''{{w|The Villages Daily Sun}}'', which was the only top 25 American newspaper (by circulation) to show growth in 2022.[https://pressgazette.co.uk/us-newspaper-circulations-2022/]&lt;br /&gt;
|-&lt;br /&gt;
| {{w|St. Petersburg, Florida|St. Petersburg}} || The fifth largest city in the state of Florida. Part of the {{w|Tampa Bay area|Tampa Bay metropolitan area}}.&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Miami Beach, Florida|Miami Beach}} || A coastal resort city in Miami-Dade County, Florida, across the bay from the city of {{w|Miami}}.&lt;br /&gt;
|-&lt;br /&gt;
! colspan=&amp;quot;2&amp;quot; | Below the map&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Algeria}} || A country in North Africa. The largest and the 9th most populated country on the continent of Africa. Bordered to the northeast by Tunisia; to the east by Libya; to the southeast by Niger; to the southwest by Mali, Mauritania, and Western Sahara; to the west by Morocco; and to the north by the Mediterranean Sea. &lt;br /&gt;
|-&lt;br /&gt;
| {{w|Armenia}} || A landlocked country located in the Armenian Highlands of Western Asia. It is a part of the Caucasus region.&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Monrovia}} || The capital city of the West African country of {{w|Liberia}}.&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Brasília|Brasilia}} || The federal capital of the country of {{w|Brazil}} and Brazil's 3rd populous city. Actually spelled ''Brasília''. &lt;br /&gt;
|-&lt;br /&gt;
| {{w|Australia}} || A country which comprises the mainland of the continent of Australia. The world's sixth largest country by area.&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Valencia}} || The 3rd most populous city in the country of {{w|Spain}}.&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Byzantium}} || An ancient Greek city and capital of the {{w|Byzantine Empire}}. Its name was changed to New Rome in 324, Constantinople in 330, and finally Istanbul in 1930.&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Assyria}} || An major ancient Mesopotamian civilization which existed as a city-state and then a territorial state and eventually an empire. The Assyrian Empire fell to the Babylonians and Medes in the late 7th century BC.&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Beringia}} || A prehistoric land mass and region in the {{w|Bering Sea}} region. It is the most popular site of the hypothesized &amp;quot;land bridge&amp;quot; that early humans used to migrate to the Americas.&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Antarctica}} || The earth's southernmost and least-populated continent, mostly covered by ice.&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Sokovia}} || A fictional country in the Marvel Cinematic Universe. Described to be in eastern Europe between Slovakia and the Czech Republic. Its capital city is destroyed during a battle between Ultron and the Avengers in the film ''{{w|Avengers: Age of Ultron}}'', leading to the ratification of the Sokovia Accords.&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Andromeda}} || Several things: a {{w|Andromeda (constellation)|constellation in space}}, a {{w|Andromeda Galaxy|galaxy}} within that constellation, or the {{w|Andromeda (mythology)|Greek mythological character}} whom the constellation and galaxy are named after.&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Lothlórien|Lothlorien}} || A realm of the elves in {{w|Middle-earth}} in the {{w|Tolkien's legendarium|works of J. R. R. Tolkien}}. Ruled by Galadriel and Celeborn. Actually spelled ''Lothlórien'' in the books.&lt;br /&gt;
|-&lt;br /&gt;
| ''{{w|Subnautica}}'' || Not a place, but an open-world survival action-adventure video game developed and published by Unknown Worlds Entertainment released in 2018.&lt;br /&gt;
|-&lt;br /&gt;
| {{w|metaverse|The Metaverse}} || The online world of {{w|virtual reality}}.  This would be challenging to substitute into ''American Idiot'', because the &amp;quot;The&amp;quot; is necessary to have four syllables with the second emphasized -- Billie Joe Armstrong would have to say he doesn't &amp;quot;wanna be a The Metaverse Idiot&amp;quot; or &amp;quot;a me'''TA'''versal idiot&amp;quot;.&lt;br /&gt;
|-&lt;br /&gt;
| {{w|Econo Lodge|EconoLodge}} || Actually spelled ''Econo Lodge'', though their wordmark doesn't help. An economy motel chain in the US and Canada. &lt;br /&gt;
|-&lt;br /&gt;
| {{w|Jurassic Park}} (title text) || Jurassic Park is the titular theme park of cloned dinosaurs in the ''Jurassic Park'' franchise of books, films, and other media. Inevitably, the dinosaurs escape and attack humans.&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
{{incomplete transcript|Do NOT delete this tag too soon.}}&lt;br /&gt;
&lt;br /&gt;
:[A header is written above a map of the US mainland:]&lt;br /&gt;
:&amp;lt;big&amp;gt;Places whose names scan to &amp;quot;America,&amp;quot; so they can be substituted into songs such as:&amp;lt;/big&amp;gt;&lt;br /&gt;
:''America the Beautiful''&lt;br /&gt;
:''God Bless America''&lt;br /&gt;
:Neil Diamond – ''America''&lt;br /&gt;
:West Side Story – ''America''&lt;br /&gt;
:The Guess Who – ''American Woman''&lt;br /&gt;
:Green Day – ''American Idiot''&lt;br /&gt;
:[Above the map, towards the left:]&lt;br /&gt;
:Sasketchewan&lt;br /&gt;
:[Towards the right:]&lt;br /&gt;
:Ontario&lt;br /&gt;
:[A number of places are marked on the map. From top to bottom, left to right:]&lt;br /&gt;
:Olympia&lt;br /&gt;
:Yosemite&lt;br /&gt;
:Los Angeles&lt;br /&gt;
&lt;br /&gt;
:Lake Michigan&lt;br /&gt;
:Peoria&lt;br /&gt;
:Columbia (in Missouri)&lt;br /&gt;
&lt;br /&gt;
:Acadia&lt;br /&gt;
:Montpelier&lt;br /&gt;
:Schenectady&lt;br /&gt;
:Connecticut&lt;br /&gt;
:LaGuardia&lt;br /&gt;
:Centralia&lt;br /&gt;
:Annapolis&lt;br /&gt;
:Virginia Beach&lt;br /&gt;
:Columbia (in South Carolina)&lt;br /&gt;
:Vidalia&lt;br /&gt;
:The Villages&lt;br /&gt;
:St. Petersburg&lt;br /&gt;
:Miami Beach&lt;br /&gt;
:[Below the map, in columns:]&lt;br /&gt;
:Australia&lt;br /&gt;
:Armenia&lt;br /&gt;
:Monrovia&lt;br /&gt;
:Brasilia&lt;br /&gt;
:Australia&lt;br /&gt;
:Valencia&lt;br /&gt;
&lt;br /&gt;
:Byzantium&lt;br /&gt;
:Assyria&lt;br /&gt;
:Beringia&lt;br /&gt;
:Antarctica&lt;br /&gt;
&lt;br /&gt;
:Sokovia&lt;br /&gt;
:Andromenda&lt;br /&gt;
&lt;br /&gt;
:Lothlorien&lt;br /&gt;
:Subnautica&lt;br /&gt;
&lt;br /&gt;
:The Metaverse&lt;br /&gt;
:EconoLodge&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
&lt;br /&gt;
[[Category:Maps]]&lt;br /&gt;
[[Category:Language]]&lt;br /&gt;
[[Category:Songs]]&lt;br /&gt;
[[Category:Substitutions]]&lt;/div&gt;</summary>
		<author><name>NotaBene</name></author>	</entry>

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