explain xkcd - User contributions [en]

3072: Stargazing 4

2025-04-06T13:16:51Z

Linneris: fix typo

{{comic
| number = 3072
| date = April 4, 2025
| title = Stargazing 4
| image = stargazing_4_2x.png
| imagesize = 740x386px
| noexpand = true
| titletext = We haven't actually seen a star fall in since we invented telescopes, but I have a list of ones I'm really hoping are next.
}}

==Explanation==
{{incomplete|Created by a 1-STAR YELP REVIEW. Do NOT delete this tag too soon.}}
This is the fourth comic in the [[:Category:Stargazing|Stargazing]] series, and it followed [[2274: Stargazing 3]] that came out five years before. That was the longest stretch between two comics in the series so far.

The host [[Megan]] begins the introduction by referencing rude {{w|Yelp}} reviews of her stargazing lessons. The reviewers doubt that she is actually a qualified astronomer due to how simplistic her lessons are; they claim she is just saying the words that come to mind.

Then she states that there are over 20 stars in the sky and some of them are over the age of 100. Both of these statements are true, but extreme understatements.
*A few thousand stars are visible to the unaided eye under good viewing conditions, though in a city there ''could'' be less than 20 stars visible even on a clear night.
:For a normal stargazing session the event should be held in a venue with as little light pollution as possible, which could mean the middle of an urban green space, conveniently away from lighting or else specially arranging for the most inconvenient lighting to be off for the duration.
:However, given the unprofessional nature of Megan's lessons, there is no guarantee that this session does not take place under less than ideal circumstances. Or she is perpetually unlucky as [[1556: The Sky|daylight or clouds]] may further reduce visible stars.
:Ignoring the need for visibility entirely, it is also estimated that there are about 200 sextillion (i.e. 2x1023) stars in the universe. Of which around a half would be somewhere 'in the sky' at any given moment.
*Stars are typically billions of years old. While new stars are being created in nebulae all the time, it is extremely unlikely that we are seeing the nebulous start of even the shortest lived stars within the first century of their life.
:One of the 'youngest' potential candidates is {{w|SN 1987A}}, which may be a neutron star of less than 40 years old. But that is discounting the additional age it has acquired from it being approximately 168,000 light years away from us (making it actually 168,038(ish) years old, already). It is further undermined by arguably just being the next stage of life of the far older star that had to go supernova in order to leave it behind.
:Of stars within 100 lightyears of Earth, and formed afresh from interstellar material, {{w|AU Microscopii}} is slightly over 30 lightyears away and considered to be very new (as far as stars go). But it is still 22 ''million'' years old, as it is currently understood.

Megan states that our galaxy is huge and that there are more grains of sand in the {{w|Milky Way}} than grains of sand on all of Earth's beaches. This is a parody of the common saying that there are more stars in the visible universe than grains of sand on all the beaches of Earth. Since the Earth's sand is a subset of all of the galaxy's sand, and there are more planets with sand other than Earth (such as Mars), there are unquestionably more grains of sand in the Milky Way than on Earth. Tangentially, it is unclear whether the stars outnumber Earth's sands, as shown here: [https://www.scientificamerican.com/article/do-stars-outnumber-the-sands-of-earths-beaches/ Do Stars Outnumber the Sands of Earth’s Beaches?] and here: [https://www.astronomy.com/science/the-ever-lasting-question-more-sand-or-stars/ The ever-lasting question: more sand or stars?]. Also, the original quote was all the sand on Earth, not just on the beaches. Megan adds a helpful hint, calling a beach a big wet sandbox.

She then finishes the lesson by correctly saying that there is a black hole in the center of our galaxy ({{w|Sagittarius A*}}), and that stars sometimes fall in and get consumed by the black hole. When stars come too close to black holes, they experience a {{w|tidal disruption event}} (TDE), where a star is pulled apart by the black hole after exceeding its {{w|Roche limit}}. This creates streams of material that orbits the black hole and forms an accretion disk, that will eventually be consumed by the black hole or ejected in jets.

She adds her personal opinion on this fact saying that such events are "hilarious" and proceeds by saying that it's okay to laugh at the fate of those stars as the gravity of the black hole will prevent any signals from those stars escaping. This is due to black holes' immense gravitational attraction that prevents even light from escaping. In Megan's case the most important consequence of this fact is that anyone on planets around such stars cannot leave Yelp reviews if they hear her laughing. Thus, they cannot add to those that mock her lesson.

However, as the Roche limit of a black hole is always greater than its {{w|Schwarzschild radius}}, reviews made just after the star begins spaghettification could still escape the black hole. Not only do stars not use any kind of human-made technology,{{citation needed}} but any information regarding the app Yelp has yet to reach any star near Sagittarius A*, and will only reach it in 27 thousand years. It is much more likely that someone living on one of the star's planets would try to leave a comment on Yelp, not the star itself. But the same issues with distances would of course apply. It also seems unlikely that any planet would still be following a star when it first gets that close to a super massive black hole.

In the title text Megan claims that we haven't actually seen a star fall into a black hole (or ''the'' black hole that she is describing) since we invented telescopes. In reality, over a hundred TDEs have been discovered in a variety of wavelengths, including by the Hubble telescope. The way title text is phrased though she might have meant fall into specifically Sagittarius A*, and while it is true that we haven't observed any star fall into our closest supermassive black hole, the {{w|Sagittarius_A*#Discovery_of_G2_gas_cloud_on_an_accretion_course|G2 gas cloud on an accretion course}} was discovered in 2002. Megan also apparently has a list of stars she would like to see fall into the black hole. But she can keep hoping as humans at this time have no way of changing the position of any star, and probably couldn't implement it soon upon such distant stars, even if were possible. So unless she is hoping for one (or more) of the already closer stars to be observed to fall in next, she is unlikely to experience success based on her list.

==Transcript==
{{incomplete transcript|Do NOT delete this tag too soon.}}
:[The background is black, Megan is in front of three others, Cueball and Ponytail to the left, and White Hat to the right. Megan is drawn in white while the background characters are in grey.]
:Megan: Welcome back to Stargazing.
:Megan: According to some ''incredibly'' rude Yelp reviews, I'm "not informative" and "can't possibly be an astronomer" and "just kind of say words as they occur to me."
:Megan: I guess some losers just hate cool space facts!

:[The sky is white, the floor is black, Megan is pointing at the sky. Hairy, a Megan-like woman (with a longer hair), Cueball, and Ponytail are on the left, White Hat and Hairbun are on the right. All of the characters are drawn in black.]
:Megan: Anyway, that dot is a "star."
:Megan: There are over 20 stars in the sky, and some of them are more than 100 years old.

:[The background is black again, the panel zooms in on Megan's face.]
:Megan: Our galaxy is huge.
:Megan: You know the beach? That big wet sandbox?
:Megan: Well, there are more grains of sand in the Milky Way than in all Earth's beaches combined.
:Off-panel voice to the left: Wow.
:Off-panel voice to the right: ...Wait.

:[The background is still in black, Megan is in front of others and has her finger raised, Ponytail is left of Megan, White Hat and Hairbun on the right. Megan is again drawn in white while the background characters are in grey.]
:Megan: The galaxy has a black hole at the center.
:Megan: Sometimes stars fall in, which is ''hilarious''.
:Megan: Don't worry, it's okay to laugh. The gravity prevents signals from escaping, so they can't leave Yelp reviews.

{{comic discussion}}

[[Category:Stargazing]]
[[Category:Comics sharing name|Stargazing]]
[[Category:Comics with inverted brightness]]
[[Category:Astronomy]]
[[Category:Comics featuring Megan]]
[[Category:Comics featuring Cueball]]
[[Category:Comics featuring Ponytail]]
[[Category:Comics featuring White Hat]]
[[Category:Comics featuring Danish]]
[[Category:Comics featuring Hairy]]
[[Category:Comics featuring Hairbun]]

3026: Linear Sort

2024-12-19T16:23:59Z

Linneris: spelling

{{comic
| number = 3026
| date = December 18, 2024
| title = Linear Sort
| image = linear_sort_2x.png
| imagesize = 385x181px
| noexpand = true
| titletext = The best case is O(n), and the worst case is that someone checks why.
}}

==Explanation==
{{incomplete|Created in Θ(N) TIME by an iterative Insertion Sorter working on a multidimensional array - Please change this comment when editing this page. Do NOT delete this tag too soon.}}
A common task in programming is to sort a list, a list being a collection of related elements of data that are stored in a linear fashion. There are dozens of algorithms that have been created for this through the years, from simple to complex, and each has its own merits with regards to how easy it is to understand / implement, how much space it uses, and how efficiently it operates on the data.

In computer science, the runtime of an algorithm can be described using {{w|Big O Notation}}, which categories the asymptotic, usually average, runtime (''O'') of a function of the number of elements (''n'') operated on (''f(n)'') as it grows larger and larger towards infinity; this creates the form O(''f''(''n'')) as the final description. Being asymptotic means that Big O Notation only considers parts of the function that scale with time and disregards fixed changes such as multipliers and additions to the scaling time ( 'lesser' scalings are also generally discarded). O(2''n'') is essentially O(''n''), while O(2''n'' + ''n''2) might be taken as O(2''n'') with the significance of ''n''2 practically eclipse in the long term. In practice, an O(''n'') algorithm takes a constant additional amount of time per element operated on, O(log ''n'') suffers less relative increase as the input complexity does, while O(''n''{{w|Factorial|!}}) generates vastly more! This does not make claims about how much time a single base unit of complexity takes to complete (including any lesser overheads), as that relies upon actual hardware and software benchmarks, but it gives the trend in a way that is usually directly comparable between any number of alternate methods implementable in exactly the same situation for an arbitrary usage case. A simple example would be examining pictures in sequence: if it takes one second to look at a picture, it would take ten seconds to look at ten pictures; if it took three seconds to look at a picture, it would take thirty seconds to look at ten pictures — both are described as O(''n'').

Generally, programmers seek to minimize the Big O Notation of their algorithms because it means they take less time. It can be proven that all general-purpose sorting methods have an average-case lower bound of {{w|Big O notation#Big Omega notation|Ω}}(''n'' log ''n'') for all possible input orders; since this is larger than ''n'' on its own, it means that algorithms will always begin to take longer per element as the number of elements increases. This still depends upon the algorithm and the data, as something like an {{w|Insertion sort}} can work in O(''n'') time if given a list already in the correct order, or O(''n''2) if it needs to be reversed.

Here are some examples of common runtimes expressed in Big O notation, from smallest to largest:
<ul><li>O(1) - Constant time, which means the execution time is independent of the size of the data</li>
<li>O(''n'') - Linear time, which means the execution time grows in direct proportion to the size of the data</li>
<li>O(''n'' log(''n'')) - The execution time grows proportionally to ''n'' * the {{w|logarithm}} of ''n'', with the added ''log(n)'' creating an increasingly larger multiplier on the runtime</li>
<li>O(''n''2) - Quadratic time, meaning the execution time grows proportionally to the ''square'' of the size of the data.</li></ul>

The code in the comic describes a 'linear' sort that first sorts the list using {{w|merge sort}}, which is known to take time O(''n'' log(''n'')), and then `sleep()`s (pauses with no activity) for a complementary amount of time by subtracting the time taken for the sort from the number of elements multiplied by 1 million (1e6) seconds. This way, the total time always scales proportionately with the number of elements. This effectively converts the algorithm, through brute force, to fit the definition of linear time: it takes one million seconds — which is more than 11 days — per element, rather than a non-linear progression as the number of elements increases. Although this algorithm ''does'' run in O(''n''), it does not reflect that it is made to be significantly slower than the nominally 'worse' O(''n'' log(''n'')) performance that the embedded sort takes by itself.

It should be noted that for sufficiently large lists, the merge sort will take longer than the million seconds per element, which results in a negative value being passed to the sleep() function. This might halt the program with a runtime error, produce {{w|Integer overflow#Definition variations and ambiguity|unpredictably extra-long}} additional waits or skip any additional wait; all of these still leaving the issue of already having exceeded O(''n''). However, this issue will only arise for impossibly huge lists: if, for instance, a merge sort took ''n log(n)'' microseconds to complete (which would be considered slow, by today's typical processing times), then the comic's 'linear' sort target would be reached sooner only for lists longer than 21,000,000,000,000 ≈ 10300,000,000,000 elements — a number far larger than the number of atoms in the universe. The practical impossibility of this outcome might be why such a ridiculously high number of seconds was chosen.

The title text refers to the {{w|Best, worst and average case|best and worst case}} of a sort, which are additional measures of its runtime to describe the shortest and longest potential times. A more optimal sort may decide how much of a list needs to be passed over again after its first pass of shuffling elements around; scanning a pre-sorted list (and deducing that it has no more checking to do) could mean that no more effort is needed, resulting in a best case of O(''n''). Depending upon the algorithm, presenting a list that is in an ordering that happens to challenge it the most (such as exactly reversed) may mean even an 'average O(''n'' log ''n'')' process would have to exceed this, resulting in a worst-case number of operations that may be O(''n2''). It can be very useful to know that a given sorting method ''may'' take the average order of time, but have the possibility of a much shorter ''or'' longer runtime... especially when the method is expected to be [[1185: Ineffective Sorts|far, far worse than others]], where only particular and more idealistic input lets it approach the more satisfyingly fast average/best responses.

By forcing all practical searches to take O(''n'') time, regardless of how otherwise identical data is presorted, the best case (and worst case, for that matter) will also be O(''n''). The last part of the text then plays on another meaning of best case and worst case, as best- and {{w|worst-case scenario}}s for a situation, by saying that the worst outcome for the code's author is when someone decides to investigate the code (perhaps owing to its absurd runtime, or else just justifiably skeptical of the declared optimality), whereupon that investigator will discover the deception and ruin the author's reputation.

==Transcript==
{{incomplete transcript|Do NOT delete this tag too soon.}}
:[The panel shows five lines of code:]
:function LinearSort(list):
::StartTime=Time()
::MergeSort(list)
::Sleep(1e6*length(list)-(Time()-StartTime))
::return

:[Caption below the panel:]
:How to sort a list in linear time

{{comic discussion}}

[[Category:Programming]]

2875: 2024

2024-01-02T18:38:36Z

Linneris: Undo revision 332008 by 172.71.242.131 (talk)

<noinclude>:''This page refers to the comic named "2024". For comic #2024, see [[2024: Light Hacks]].''</noinclude>
{{comic
| number = 2875
| date = January 1, 2024
| title = 2024
| image = 2024_2x.png
| imagesize = 740x553px
| noexpand = true
| titletext = It wasn't originally constitutionally required, but presidents who served two terms have traditionally followed George Washington's example and gotten false teeth.
}}

==Explanation==
{{incomplete|Created by OBAMA'S TEETH - Please change this comment when editing this page. Do NOT delete this tag too soon.}}
In what starts off almost like a "[[:Category:Comics to make one feel old|doesn't time fly?]]" scene, the unstoppable progression of the calendar is observed, as [[Ponytail]] points out that it's now 2024. [[Cueball]], in response, notes that it is an election year, in this context a {{w|President of the United States#Election|US ''Presidential'' election}} year, which occurs every four years and has (in one form or other) since 1788. Ponytail then replies in some form of exasperated tone that they "keep on happening", which is true but (normally) unsurprising, even/especially with other major elections happening every two years, presumably not compared to how [https://www.bristol247.com/news-and-features/news/youre-joking-not-another-one/ some other democracies] might be less predictable/more frequent.

On top of this, Ponytail seems to have not been aware (or maybe has chosen to forget) the passing of two whole election cycles (and two newer incumbents) as the discussion focuses upon {{w|Barack Obama}}, the ''former'' US President. Ponytail seems to be quite behind the times as she asks if Obama is still president (he left office January 20th, 2017, which was 7 (!) years ago, a fact that Cueball cannot quite believe Ponytail is ignorant of). Ponytail states that she liked him, and wonders if he'll be up for taking on the position again. But Cueball states that he ''can't'' be made President again, having already served two terms, which Ponytail confirms by checking for herself the details of the {{w|Twenty-second Amendment to the United States Constitution}}.

The humor in the comic comes in the second half; Cueball and Ponytail discuss whether Obama is the same person (like the mythical {{w|Ship of Theseus}}, most of his constituent cells are frequently replaced), with Ponytail looking into the possibility of Obama's re-election based upon philosophical/biological technicalities (as applied to the Constitution's words), rather than as legal/political convention might normally suggest. But when even that approach is seen to be wanting, requiring a wait significantly exceeding 30 years, Ponytail suggests negating that issue by having all of Obama's teeth removed and replaced with false teeth.

In order to facilitate the latter goal, Ponytail announces her intention to consult a dentist and (for exact reasons that can only be guessed at) a lawyer. Seeing where her current misplaced, and {{w|Dunning–Kruger effect|less than informed}}, zeal might be leading her, Cueball gives his prediction that the probable {{w|Supreme Court of the United States|ultimate legal arbiters}} of her plan might be unanimous in rejecting its validity (if not dissuading its attempt). SCOTUS being unanimous on an issue is now a [https://www.scotusblog.com/2022/07/as-unanimity-declines-conservative-majoritys-power-runs-deeper-than-the-blockbuster-cases/ comparatively rare event].

The title text combines two {{w|George Washington}} references. The first part of the sentence is the beginning of the mundane but true claim that "It wasn't originally constitutionally required, but presidents who have served two terms have traditionally followed George Washington's example and not sought a third term." However, the title text veers off-course to the subject of {{w|George Washington's teeth|George Washington's (in)famous 'false teeth'}}. Washington's dentures are often falsely claimed to be made of wood; in truth they were ''real'' teeth procured from other sources. Regardless, this would have likely resolved the rather specific philosophical/legal problems established in the comic, were they real. However, since Washington only ran for president twice, even if the 22nd amendment had been in effect, it would have been unnecessary!

It goes almost without saying that no one has yet even ''attempted'' to carry out this plan. Only one President has exceeded the 2-term limit; {{w|Franklin D. Roosevelt}} died in office during his ''fourth'' term, but he served prior to the 22nd Amendment and was thus unaffected by the rule, which was enacted six years after his death. (FDR did have a partial denture, but given that he retained some of his natural teeth, he did not engage in Ponytail's proposed scheme.) Presidents since then have definitely tried various schemes aimed at securing a second term, with both successes and failures, but nobody has yet attempted''this particular plan'' to achieve a third or beyond. Or at least one can assume that those that perhaps did (including, as noted, all those who were not yet 'required' to go to these lengths) failed to attain their goals for entirely different reasons.

==Transcript==
{{incomplete transcript|Do NOT delete this tag too soon.}}

:[Ponytail and Cueball are walking.]
:Ponytail: So this is 2024.
:Cueball: Yup. Guess it's an election year now.
:Ponytail: Again? Man, those just keep happening, huh?

:[Ponytail and Cueball now standing.]
:Ponytail: Who's the president these days, anyway? Is it still Obama?
:Cueball: What? No? He hasn't been... How do you not...

:[Ponytail and Cueball still standing.]
:Ponytail: Darn, I liked him. Is he running this time?
:Cueball: No, he's not allowed to.
:Ponytail: He's not? Why?
:Cueball: Constitution.

:[Ponytail checks her smartphone.]
:Phone: ''Amendment 22''
:Phone: No person shall be elected to the office of the president more than twice
:Ponytail: What?? C'mon...

:[Ponytail talking to Cueball.]
:Ponytail: Don't all your cells get replaced every seven years, Ship of Theseus-style? Is he even the same person?
:Ponytail: Maybe "no person shall be elected more than twice" isn't a prohibition, it's more of an observation, like "you can't step in the same river twice."

:[Zoom in on Cueball.]
:Cueball: Isn't the cell thing a myth?
:Cueball: I think tooth enamel has a turnover half-life of 30+ years. His teeth molecules are probably the same.

:[Ponytail heads off with a finger raised.]
:Ponytail: So if Obama just gets false teeth, he can run again! I need to talk to a dentist and a lawyer!
:Cueball: The Supreme Court is about to vote 9-0 to block your number.

{{comic discussion}}

[[Category:Comics featuring Ponytail]]
[[Category:Comics featuring Cueball]]
[[Category:Elections]]
[[Category:Politics]]
[[Category:Biology]]

2875: 2024

2024-01-02T18:27:16Z

Linneris: Undo revision 331980 by 172.70.86.165 (talk)

2875: 2024

2024-01-02T18:24:10Z

Linneris: Undo revision 331974 by 172.69.194.226 (talk)

2875: 2024

2024-01-02T18:19:05Z

Linneris: Undo revision 331969 by 172.69.194.224 (talk)

<noinclude>:''This page refers to the comic named "2024". For comic #2024, see [[2024: Light Hacks]].''</noinclude>
{{comic
| number = 2875
| date = January 1, 2024
| title = 2024
| image = 2024_2x.png
| imagesize = 740x553px
| noexpand = true
| titletext = It wasn't originally constitutionally required, but presidents who served two terms have traditionally followed George Washington's example and gotten false teeth.
}}

==Explanation==
{{incomplete|Created by OBAMA'S TEETH - Please change this comment when editing this page. Do NOT delete this tag too soon.}}
In what starts off almost like a "[[:Category:Comics to make one feel old|doesn't time fly?]]" scene, the unstoppable progression of the calendar is observed, as [[Ponytail]] points out that it's now 2024. [[Cueball]], in response, notes that it is an election year, in this context a {{w|President of the United States#Election|US ''Presidential'' election}} year, which occurs every four years and has (in one form or other) since 1788. Ponytail then replies in some form of exasperated tone that they "keep on happening", which is true but (normally) unsurprising, even/especially with other major elections happening every two years, presumably not compared to how [https://www.bristol247.com/news-and-features/news/youre-joking-not-another-one/ some other democracies] might be less predictable/more frequent.

On top of this, Ponytail seems to have not been aware (or maybe has chosen to forget) the passing of two whole election cycles (and two newer incumbents) as the discussion focuses upon {{w|Barack Obama}}, the ''former'' US President. Ponytail seems to be quite behind the times as she asks if Obama is still president (he left office January 20th, 2017, which was 7 (!) years ago, a fact that Cueball cannot quite believe Ponytail is ignorant of). Ponytail states that she liked him, and wonders if he'll be up for taking on the position again. But Cueball states that he ''can't'' be made President again, having already served two terms, which Ponytail confirms by checking for herself the details of the {{w|Twenty-second Amendment to the United States Constitution}}.

The humor in the comic comes in the second half; Cueball and Ponytail discuss whether Obama is the same person (like the mythical {{w|Ship of Theseus}}, most of his constituent cells are frequently replaced), with Ponytail looking into the possibility of Obama's re-election based upon philosophical/biological technicalities (as applied to the Constitution's words), rather than as legal/political convention might normally suggest. But when even that approach is seen to be wanting, requiring a wait significantly exceeding 30 years, Ponytail suggests negating that issue by having all of Obama's teeth removed and replaced with false teeth.

In order to facilitate the latter goal, Ponytail announces her intention to consult a dentist and (for exact reasons that can only be guessed at) a lawyer. Seeing where her current misplaced, and {{w|Dunning–Kruger effect|less than informed}}, zeal might be leading her, Cueball gives his prediction that the probable {{w|Supreme Court of the United States|ultimate legal arbiters}} of her plan might be unanimous in rejecting its validity (if not dissuading its attempt). SCOTUS being unanimous on an issue is now a [https://www.scotusblog.com/2022/07/as-unanimity-declines-conservative-majoritys-power-runs-deeper-than-the-blockbuster-cases/ comparatively rare event].

The title text combines two {{w|George Washington}} references. The first part of the sentence is the beginning of the mundane but true claim that "It wasn't originally constitutionally required, but presidents who have served two terms have traditionally followed George Washington's example and not sought a third term." However, the title text veers off-course to the subject of {{w|George Washington's teeth|George Washington's (in)famous 'false teeth'}}. Washington's dentures are often falsely claimed to be made of wood; in truth they were ''real'' teeth procured from other sources. Regardless, this would have likely resolved the rather specific philosophical/legal problems established in the comic, were they real. However, since Washington only ran for president twice, even if the 22nd amendment had been in effect, it would have been unnecessary!

It goes almost without saying that no one has yet even ''attempted'' to carry out this plan. Only one President has exceeded the 2-term limit; {{w|Franklin D. Roosevelt}} died in office during his ''fourth'' term, but he served prior to the 22nd Amendment and was thus unaffected by the rule, which was enacted six years after his death. (FDR did have a partial denture, but given that he retained some of his natural teeth, he did not engage in Ponytail's proposed scheme.) Presidents since then have definitely tried various schemes aimed at securing a second term, with both successes and failures, but nobody has yet attempted''this particular plan'' to achieve a third or beyond. Or at least one can assume that those that perhaps did (including, as noted, all those who were not yet 'required' to go to these lengths) failed to attain their goals for entirely different reasons.

==Transcript==
{{incomplete transcript|Do NOT delete this tag too soon.}}

:[Ponytail and Cueball are walking.]
:Ponytail: So this is 2024.
:Cueball: Yup. Guess it's an election year now.
:Ponytail: Again? Man, those just keep happening, huh?

:[Ponytail and Cueball now standing.]
:Ponytail: Who's the president these days, anyway? Is it still Obama?
:Cueball: What? No? He hasn't been... How do you not...

:[Ponytail and Cueball still standing.]
:Ponytail: Darn, I liked him. Is he running this time?
:Cueball: No, he's not allowed to.
:Ponytail: He's not? Why?
:Cueball: Constitution.

:[Ponytail checks her smartphone.]
:Phone: ''Amendment 22''
:Phone: No person shall be elected to the office of the president more than twice
:Ponytail: What?? C'mon...

:[Ponytail talking to Cueball.]
:Ponytail: Don't all your cells get replaced every seven years, Ship of Theseus-style? Is he even the same person?
:Ponytail: Maybe "no person shall be elected more than twice" isn't a prohibition, it's more of an observation, like "you can't step in the same river twice."

:[Zoom in on Cueball.]
:Cueball: Isn't the cell thing a myth?
:Cueball: I think tooth enamel has a turnover half-life of 30+ years. His teeth molecules are probably the same.

:[Ponytail heads off with a finger raised.]
:Ponytail: So if Obama just gets false teeth, he can run again! I need to talk to a dentist and a lawyer!
:Cueball: The Supreme Court is about to vote 9-0 to block your number.

{{comic discussion}}

[[Category:Comics featuring Ponytail]]
[[Category:Comics featuring Cueball]]
[[Category:Elections]]
[[Category:Politics]]
[[Category:Biology]]

2875: 2024

2024-01-02T18:17:51Z

Linneris: Undo revision 331966 by 172.71.178.51 (talk)

explain xkcd:Community portal/Admin requests

2024-01-02T18:09:54Z

Linneris: Undo revision 331959 by 172.71.242.196 (talk)

<noinclude>{{Community links}}

__NEWSECTIONLINK__

{|-
|valign="top" width="100%"|[[File:Mop.svg|left|120px]] <big><big>Admin requests</big></big>

 Welcome to your mother's basement! Problems requiring assistance from an [[explain xkcd:Administrators|admin]]. User problems, changes to protected pages, more user rights etc. {{AddNewSection|Page=Explain XKCD:Community portal/Admin requests|Text=(+post)}}
|}
'''List of Admins:''' 
<div class="mw-collapsible mw-collapsed">
{{Special:ListUsers/sysop}}
</div>

= Discussion Area =
</noinclude>

== Convert to real X-Forwarded-For IP addresses? ==

Can you admins do the https://serverfault.com/a/526551 thing so you can block by real IP addresses and ranges? [[Special:Contributions/172.70.211.134|172.70.211.134]] 15:45, 22 July 2022 (UTC)
:That is out of my league. But maybe some of the other clever admins may know what if that can be used? [[User:Kynde|Kynde]] ([[User talk:Kynde|talk]]) 17:07, 22 July 2022 (UTC)

==Install anti-spam programs==
I think it’s time to install some sort of automated anti-spam programs that can catch these spammers fast.[[Special:Contributions/172.70.130.91|172.70.130.91]] 06:30, 24 July 2022 (UTC)

I don't want to be disrespectful, but it seems that the current set of admins lacks the collective time or ability to upgrade Mediawiki/MySQL and install widely available anti-vandalism and anti-spam measures. But you have perhaps the most technically inclined, supportive, and motivated audience you could hope for here. Why not use the main page top banner to ask for expert Mediawiki volunteers or if that doesn't work, funds to hire such a consultant to upgrade blocking and filtering tools or a new hosting solution if needed? I believe you'd be surprised with the extent of community support you can muster, and manually chasing vandalism is becoming tiresome. [[Special:Contributions/172.70.211.90|172.70.211.90]] 07:28, 24 July 2022 (UTC)
:I've been chasing jeff for months now because he's the only one with access to the server. I know he's alive and still active online, but he clammed up partway through the previous wave of heavy spam and the email chain is just 20 of my own emails, I'll get through eventually. '''[[User:Davidy22|y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 18:10, 24 July 2022 (UTC)
::[https://twitter.com/jeff_underscore @jeff_underscore] tweeted four days ago. Would it help if we launched a Twitter campaign to get him on board with a server update fundraiser, or something? [[Special:Contributions/172.70.214.43|172.70.214.43]] 03:36, 25 July 2022 (UTC)
::: Anyone with the skills and experience should tweet him to take him up on [https://www.explainxkcd.com/wiki/index.php?title=User_talk:Jeff&diff=211706&oldid=211700 his offer,] IMHO. [[Special:Contributions/162.158.118.39|162.158.118.39]] 04:12, 25 July 2022 (UTC)

== Basic punctuation standards ==
Can we please have some agreement that <code>."</code> is better than <code>".</code>? [[Special:Contributions/172.71.150.29|172.71.150.29]] 07:08, 24 August 2022 (UTC)
:That would depend.
When asked "How do you deal with endquote punctuation in quoted speech?" he answered "Yes," with a definite nod of his head, "I would always try to put the punctuation before the quote."
:...that is how I was taught to do it, <mumble>fumphty-fumph</mumble> years ago, and when it is clear quoted speech (with 66s, 99s) then that's probably best. Except when it might confuse, but then a rewrite (or clearly indicated paraphrase/part-quote) might be useful. You'll note I example-quote 'wrongly' in some places below, to accomodate other factors. Like an exclamation point as a feature of the holding sentence that makes no sense at all to be translated to within the quoted sentence(-fragmant).
On the other hand providing "a set of words", with no clear quotation to them, ellicits no such compunction.
:...it gets a bit hazy, because a partial quote of a real full sentence (or an incomplete/incompleted quote) could go either way. But I would not consider "a set of words," to be sensible.
If you give a "list", "spread" or "set" of singular terms then no, or even compounded ones if they are ultimately the "be-all" and "end-all".
:...noting that I might personally single-quote in this case (I know not why I have adopted this principle, exactly), though I've often seen such things changed by others and it may be more contested than even the terminator punctuation. I might say that the 'true' difference is whether it is a definite "literal", insofar as meaning, or somewhat 'ad hoc', 'foreignish' or just plain constructed.
:But this is just my opinion. And, regardless of my preference to quote-punctuation ordering, I've seen several recent occasions where paren-punctuation ordering was totally off (IMO). Either "...at the end of a sentence (an aside.)", which should have been "... (an aside)." instead, or "(As a whole aside of its own)." for which it ''must'' surely be "(As ... of its own.)"
:Now, obviously too much ()ing is awkward, especially if nested, but I prefer the clearer in/out indication than other methods — like the mdash — which seem to be the favoured method by some editors — and, even more confusingly, often without spacing both sides. (Like "...by some editors—and, even more confusingly..."! Looks more like a hyphen, despite "—” and "–”-users changing hyphens-used-as-dashes to one or other of the dashes to try to differentiate them.)
:Ultimately, though, the people here will have learnt (or redeveloped) their own typographical standards over a wide range of educational eras (or under teachers/mentors whose own learnt-preferences might themselves be several decades passed into history) and with additional localisation/localization complications as well. I tend to agree with you (with caveats as mentioned) but it won't be universally acceptable. [[Special:Contributions/172.70.85.13|172.70.85.13]] 21:34, 24 August 2022 (UTC)
: Better? No. Correct (at least in American English)? Yes. [[User:Elektrizikekswerk|Elektrizikekswerk]] ([[User talk:Elektrizikekswerk|talk]]) 13:25, 28 September 2022 (UTC)

== Propose block of (an?) IP user(s?) and suppression of their edits ==

I don't mind being insulted but I think it's clear they're bad for the community:

* https://www.explainxkcd.com/wiki/index.php?title=User_talk:NotaBene&diff=296485&oldid=203158
* https://www.explainxkcd.com/wiki/index.php?title=User_talk:NotaBene&diff=296486&oldid=296485

--[[User:NotaBene|NotaBene]] ([[User talk:NotaBene|talk]]) 14:15, 12 October 2022 (UTC)

: As the IP who subsequently reverted those back out of existence (wasn't sure you'd seen it, but was clear to me it wasn't a useful/good-faith commentary, and now I find that you had and had certainly ignored it in-situ) I have mixed opinions. I could not have done my (good faith) edit if somehow restricted, in a way someone had previously gotten around. Bearing in mind the idiotic vandal(s) we have had before, and always ended up dealing with through sheer force of the more righteous and honest userbase, I think that drastic actions aren't necessary. But I can think of a few minor tweaks that maybe the current adminship can still hold in reserve and occasionally employ, without preventing the likes of me (long time contributor, but not yet decided to make it 'official') occasionally poking registered users' Talk pages with genuine queries or comments under most circumstances that may actually warrant it.
: That said, we have indeed had a spate of vandalism, recently, which I'm inclined to believe is 'our old friend' who probably decided he(?) was bored again. A few novel tricks (nonsense 'cat on keyboard' edits with no clear pattern to the nonsense or what it replaces) but in association with some of the old ones (global word replacements throughout an article). Quickly recorrected in all cases, SFAICT, so not a big problem.
: The above insertion (...insertions... seeming to care about punctuation typos!) I might have left for you to blue-pen out of your own Talk page (whatever the intent behind it) except for my spidey-sense saying it really was ''just'' trolling and that you had no reason to even consider a dismissive reply, never mind argue your defence against such an accusation. (But could always restore and reply to it if you really wanted to!) [[Special:Contributions/172.71.178.137|172.71.178.137]] 17:57, 12 October 2022 (UTC)

:: To be clear, I'm not proposing a site-wide restriction of all IP users, just those specific addresses. --[[User:NotaBene|NotaBene]] ([[User talk:NotaBene|talk]]) 18:41, 12 October 2022 (UTC)

::: Understood, but that'd mean inconveniencing even legitimate readers routing through the same Cloudflare gateways. Which are in bunches, such that any given region of the world is served by not necessarily contiguous IP ranges, thus false-positives and false-negatives. Until you blanket-ban enough to just make for a whole lotta false-positive blocking for a segment of real users once the instigator of the mess just moves on (or enjoys the mess he made, if self-aware enough of it).
::: I won't even know, until I submit this, if I'm this time listed even in the same IP/8-block as the above (172.71.178.137), but if it turns out that I'm a 141.* this time (or maybe 142.*, I forget what I occasionally show up as) then obviously had you reason to IP-block me because of my own actions then you'd have accomplished little by even banning the whole 16-/24-block of my original. And that's without any conscious intent to bypass the default allocation system...
::: So, not that you should take my own opinion as gospel, just thought I'd mention this. [[Special:Contributions/172.70.90.3|172.70.90.3]] 20:23, 12 October 2022 (UTC)

== Hey ==

I cleaned everything up. You should probably restore the newest 3 topics.

:It could definitely do with a cleanup (not the only page like this!), but in a positive and considered manner, not just wiping and expecting unwarrented deletions to be restored after your removal. Archival sub-pages (restricted/fully-protected) should be involved, perhaps, for reference/history (on top of the History view itself).
:Not just wiping by an unisigned contributor, as you did. I'm a hairbreadth from just reverting it all back again, on principle, and maybe someone else will do that anyway.
:But defering to known named users (esp. the admins) and their decision on how to procede. (Please do delete this contribution if you see fit to do any restoration and make my opinions moot.) [[Special:Contributions/172.68.138.79|172.68.138.79]] 20:26, 23 October 2022 (UTC)
::I agree that it needed cleanup, and also agree that wiping everything was not the best way to go about doing it. I've moved most of the deleted content to the "talk"/archive page, and put back some discussions. [[User:Theusaf|theusaf]] ([[User talk:Theusaf|talk]]) 23:22, 23 October 2022 (UTC)

== Complaint transcluded from [[user:ArthurGreenham]] ==
:(Ok, so, the above transclusion is subject to change at any time, as proven by While False going in there and 'wikilinking' everything since I first saw the transclusion inserted here, so perhaps a little less ephemeral explanation is needed..?)
:Point the first: I have no issues with While False, in general. Seems to be a good editor in general. As I recall, did a lot to counter that particularly recurring bad-faith editor who the current expanded admin set will recall. And regular editing from you, mate..? As good as anyone else, I would say. No bad-faith detected in you at all.
:Point the second: You do seem to be a bit too gung-ho with new pages, and similar experiments with markup. Just because you can, it seems. If those with the power to remove pages choose not to, then I'm not complaining, but I still think it's a bit... self-indulgant. Not that a mere IP like me can rightfully complain.
:Point the third: Clearly, among the mass of newly registered users (who never then contribute) there is a large cohort generated by some external script(s) for the intention of SEO/propogation of linky-links. I suspect that they're set to do this on any wiki that they can create accounts upon, mindlessly and with the initiating 'intelligence' not bothered how well they do it (economies of scale, as per spamming/etc) because some will do it and fulfil whatever purpose.
:Point the fourth: But, back a long time ago, our chief admin here (and his then current peers/etc?) set it up so that new users just did not so easily create brand new pages. Without overly restricting the spamming of user-registration (or, more importantly, legitimately interested actual contributors) it stymied the scripts that were creating users that then could not create (and write their spam upon) the pages they were programmed to create.
:Point the fifth: But if someone who is an autoconfirmed user looks at the accounts created (I'm guessing here, so corrects me if I'm wrong) and decides to make the pages that new and heretofor uncontriutive users ''cannot'' create for themselves, there are times (at least two, that I know of) that the mindless spam-script has not given up and moved on from putting their random link-spam upon RandomNewname's user page. And as RandomNewname ''has'' a page, it does its preprogrammed stuff.
:...and the world does not stop turning, if that happens. But it does just marginally increase the benefits vs costs of the spam-engine technique (which are probably already breaking even and more, across all speculative spam-destinationa) and I'd suggest we shouldn't be helping with that any more than we already have to.
:Maybe theusaf could add to their own bot some sort of detection of a suspicious level of linkspamming upon a user's own pages (to neuter these that leak through, like the ones that it deals with in other circumstances), but that'd be difficult without having false-positives upon genuine new users with (once they can) a genuine reason to populate their userspace with various external links.
:Instead, perhaps hold back upon feeding the spambots the fresh ground that they seem to like to make use of. Perhaps a page for "please create my userspace!" if we want genuine users (or at least ones that can find and read instructions) to get a userspace more quickly than the normal limits apply, so any established (named) editor can give them their Welcome-templated editspace.
:We can't so easily protect against conscious bad-faith editors (we will just have to deal with them, as we have done), but we seem to have sufficient anti-bot defences. If misguided editing doesn't open up cracks in the walls.
:...Ok, that looks like a rant, but was just intended to cover (much of) the issue as I saw it in a way that explained my accumulated thinking on the matter. And I clearly think too much. This is not a diatribe against anybody (except the spambot originators), just a plea for action (or, rather, inaction) in a key way. And perhaps some moderator-level cleanup, so that the above transclusion is now effectively red-linked (then delete/archive this horribly overblown entry). Leaving it up to you lot. Have fun! [[Special:Contributions/172.70.90.3|172.70.90.3]] 10:34, 1 November 2022 (UTC)

==2696: Accuracy and precision==
This is my first edit/post here. Could someone please include the Wikipedia link to "Accuracy and precision" [https://en.wikipedia.org/wiki/Accuracy_and_precision], which is a separate article from 'accuracy' and 'precision'? Thanks! unsigned ip|172.71.98.97|16:04, 9 November 2022}}
:If someone else hasn't done already, it's trivial enough to do yourself in a similar way to how you edited here, in any one of a number of ways.
:*By bare URL (shows the URL, like https://en.wikipedia.org/wiki/Accuracy_and_precision but not really suitable here)
:*As you did it above, with [] around the URL, giving a 'reference'-like link. Occaisionally useful, but a little impersonal in most cases.
:**Or use URL and alternate text in the []s (space-separated) <nowiki>[https://en.wikipedia.org/wiki/Accuracy_and_precision like this]</nowiki>, which looks [https://en.wikipedia.org/wiki/Accuracy_and_precision like this] and is most useful for non-wiki links that you can describe well, or associate into the flow of text.
:*An internal wiki link is defined like <nowiki>[[2696: Precision vs Accuracy]]</nowiki> and renders as [[2696: Precision vs Accuracy]], which is common site practice (you could alse link to [[2696]] or [[Precision vs Accuracy]], in most cases, which are redirects) but doesn't help in the above link's case.
:**If you wanted to internally link with [[2696: Precision vs Accuracy|other text]] then using <nowiki>[[2696: Accuracy and precision|other text]]</nowiki> is the way to do it (use the pipe delimiter).
:*When it comes to wikipedia links, though, we have a nice template for it. By using <nowiki>Accuracy and precision}}</nowiki> (or with the underscored version of the title, if you wish) you get a link to {Accuracy and precision}}, with the nicer aesthetic. '''Probably what you wanted.''' You can lowercase the "A" and it will still link (usually... always good to check) and linking to something like a w|noun}} can generally be written as <nowiki>|noun}}s</nowiki> should you wish the flow of text to seemlessly render the link as being for multiple noun}}s, thanks to a little more background trickery.
:**If you want to use more <nowiki>Accuracy_and_precision|replaced text}}</nowiki> then you get aAccuracy_and_precision|replaced text}} rendering. '''Another possibility for what you'd wish to use, here.'''
:**Similar templates exist for linking the likes of emplate|wiktionary}} and evenemplate|tvtropes}}, should you need them.
:**...noting that the latter needs the NoSpacesVersion of the title and because tropes|TVTropesWillRuinYourLife|TV Tropes Will Ruin Your Life}}, it has a slightly more forboding format, even though it isn't really ''that'' much worse than [[214: The Problem with Wikipedia]]. ;)
:In case that's of any use to you, or anybody else. There are a few more tips and tricks, but this covers a lot of the usage-cases.
:Also, in discussion pages and ones like this, it's useful to sign your contribution with the four tildes. But it's easy to forget and there are templates to mark unsigned contribution. As I did above. Don't worry about it. It just lets you datestamp and demarkate elements of conversation in a useful manner. As a first edit, you can be forgiven, but just so you know for future! [[Special:Contributions/172.70.91.57|172.70.91.57]] 18:21, 9 November 2022 (UTC)

** "'it's trivial enough to do yourself in a similar way to how you edited here'" Those options do not seem to be open to me if I do not set up an account; I'm not ready to take that step, so it looks like I can only edit behind-the-scenes pages, not comic pages. Thanks for the advice! I do enjoy the site when I check in! [[Special:Contributions/172.71.182.17|172.71.182.17]] 18:35, 9 November 2022 (UTC)
** Never mind. I found the option. I didn't realize the new comic page was separate from the main page. I was trying to edit the main page. Thanks! [[Special:Contributions/172.71.182.17|172.71.182.17]] 18:39, 9 November 2022 (UTC)
:...I must say, I never thought about that, or I might have not concentrated on the link-formatting stuff (which I hope was just as useful, in its own way).
:As you see, I'm also not 'ready' to set up an account. But I rarely go via the main page, which is locked against trivial vandalism, plus know that the useful editing occurs only in the transcluded source page anyway. And now so do you, happily.
:I don't know if that confusion catches out many potential editors, but at least now you know yourself. And, from one IP to another, Welcome! I hope you now find yourself productively editing away in the future, if you have anything else useful to include. No obligation, of course, except to play nice if you do. ;) [[Special:Contributions/172.70.86.11|172.70.86.11]] 19:20, 9 November 2022 (UTC)

==There's a lot of vandalism going on==

See the page history of any recent comic page. Not sure what to do about it. [[User:Equites|Equites]] ([[User talk:Equites|talk]]) 00:57, 19 November 2022 (UTC)

:Ban 162.158.107.56 and 172.71.150.83, they seem to be the perpetuators. [[User:Starstar|Starstar]] ([[User talk:Starstar|talk]]) 02:15, 19 November 2022 (UTC)

As of the 22nd, the users ChuddyCobson and CobsonTheGemson are responsible for a large amount of attacks and image vandalism, most of them NSFW (inappropiate and/or gore). Can something be done about them? [[User:Gyozaplanet|Gyozaplanet]]

I noticed the image for 1460 has been vandalized. But, in looking at the history it shows an old vandalism that was fixed. But following the link in the alleged fix gets the vandalized image. I'm out of my depth for fixing this, but couldn't find a better place to report it. It's getting too late and I'm far too tired to do more... (As an aside to what I came here for, are the above two things vandalism here? That's a rathole I'm not continuing down.) [[User:MAP|MAP]] ([[User talk:MAP|talk]]) 09:37, 22 December 2022 (UTC)

A few hours ago I decided to visit this wiki, and got quite the surprise on the front page, in that it was heavily vandalized. Decided to make an account after looking at recent changes and saw how much there was.

The accounts involved seem to be these;
* CobsonTheGemson
* ChuddyCobson
* Cobson
* Stinkycobbypoopoo
* Chud
* GotTheJakkyDoe

Kinda confused since they don't seem to be bots but I assume they're using a script or something to automate their vandalism. As far as I know, A few other people and I reverted more or less everything those accounts have done but it's possible some stuff fell through the cracks.

Also some of the gifs I reverted (most notably the gif for 381) seem to still have the same image so I'm hoping that's just a cache thing that'll sort itself out in time.

I left the above weirdness since I don't know the etiquette for deleting stuff in this section and it would remove some context to the above person's post. Hope I didn't break anything while cleaning up. [[User:Neerti|Neerti]] ([[User talk:Neerti|talk]]) 10:24, 22 December 2022 (UTC)

:Cleaned up some accounts '''[[User:Davidy22|Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 16:38, 22 December 2022 (UTC)

== Opening Certain Pages causes mediawiki errors ==

For example [https://www.explainxkcd.com/wiki/index.php/explain_xkcd:Community_portal/Proposals Proposals] and [https://www.explainxkcd.com/wiki/index.php/User:Dgbrt this user page] [[User:Starstar|Starstar]] ([[User talk:Starstar|talk]]) 02:10, 19 November 2022 (UTC)

== Apparent abuse of multiple accounts ==
For a few weeks (mostly the last few days) 51 accounts with the same soon-current name [https://www.explainxkcd.com/wiki/index.php?title=Special%3ALog&type=newusers&user=&page=User%3ASadSanta&pattern=1&year=&month=-1&tagfilter=&subtype= have been created]. To me it looks like preparation for abuse of multiple accounts. —[[User:While False|While False]] ([[User:While False/explain xkcd museum|'''museum''']] | [[User talk:While False|talk]] | [[special:Contributions/While_False|contributions]] | [[special:Log/While_False|logs]] | [[Special:UserRights/While_False|rights]] | [https://www.explainxkcd.com/wiki/index.php?title=User:While_False&printable=yes printable version] | [https://www.explainxkcd.com/wiki/index.php?title=User:While_False&action=info page information] | [https://www.explainxkcd.com/wiki/index.php/Special:WhatLinksHere/User:While_False what links there] | [https://www.explainxkcd.com/wiki/index.php?title=Special:RecentChangesLinked&days=30&from=&target=User%3AWhile_False related changes] | [https://www.google.com Google search] | current time: CURRENTTIME}}) 11:44, 16 December 2022 (UTC)
:Now, they’re 195. —[[User:While False|While False]] ([[User:While False/explain xkcd museum|'''museum''']] | [[User talk:While False|talk]] | [[special:Contributions/While_False|contributions]] | [[special:Log/While_False|logs]] | [[Special:UserRights/While_False|rights]] | [https://www.explainxkcd.com/wiki/index.php?title=User:While_False&printable=yes printable version] | [https://www.explainxkcd.com/wiki/index.php?title=User:While_False&action=info page information] | [https://www.explainxkcd.com/wiki/index.php/Special:WhatLinksHere/User:While_False what links there] | [https://www.explainxkcd.com/wiki/index.php?title=Special:RecentChangesLinked&days=30&from=&target=User%3AWhile_False related changes] | a late contribution | current time: CURRENTTIME}}) 17:24, 19 December 2022 (UTC)
::With the exception of being 'topical', these are quite typical of numerous other "<commonroot><randomchars>" sets of never-ever-used usernames. It is good to be aware of them, but I think this 'common root' was just randomly grabbed by the algorithm (or its master) without any particular view to be used any more effectively than before.
::I leave it to those who can actually do something to decide ''whether'' to actually do something, but I'm currently not so concerned. [[Special:Contributions/172.70.91.127|172.70.91.127]] 01:06, 20 December 2022 (UTC)
::Addendum - alongside "SadSanta...", we're getting a lot of [https://www.explainxkcd.com/wiki/index.php?title=Special%3ALog&type=newusers&user=&page=User%3ANatasha&pattern=1&year=&month=-1&tagfilter=&subtype= "Natasha"s], while around this time last year (as the first time glanced back at) we had [https://www.explainxkcd.com/wiki/index.php?title=Special%3ALog&type=newusers&user=&page=User%3APellGync&pattern=1&year=&month=-1&tagfilter=&subtype= "PellGync"] and [https://www.explainxkcd.com/wiki/index.php?title=Special%3ALog&type=newusers&user=&page=User%3ASnawlrab&pattern=1&year=&month=-1&tagfilter=&subtype= "Snawlrab"] as the common roots concerned. Which ultimately came of nought.
::I get the impression that the limited-success script (as being used to create spam-accounts, but overwhelmingly failing to then exploit them) is set up to randomly apply two such common roots at a time (or else there's two copies of the code running, wherever, each switching out 'exhausted' roots for the next enqueued one in their own list ...as and when necessary). A quick poke into other 'recent' historic points in the Account Creation log highly supports this, but it could do with a far more rigorous analysis to be more definite. [[Special:Contributions/172.71.242.118|172.71.242.118]] 01:31, 20 December 2022 (UTC)

There also used to be a lot of eight-letter usernames. Too many usernames are being created every day. --[[User:ColorfulGalaxy|ColorfulGalaxy]] ([[User talk:ColorfulGalaxy|talk]]) 22:03, 2 January 2023 (UTC)

== Current troll(s) ==
There's trolls posting extremely obscene stuff on the homepage, and frankly I'm appalled. The Admins need to take several steps to lock down the main page so that it's not possible for readers to view such obscene content (for example, why are arbitrary images that don't come from xkcd.com allowed???) Why are random users allowed to post arbitrary images that are not filtered/scanned in any way? ([[User:bkayes|bkayes]])
: It's been like this forever. It's rare enough that the admins leave things fairly open, but lengthy stretches lead to the lockdowns you're asking for, usually for about a week which is usually sufficient. Mixed feelings. There are a lot of tools that could help a lot, but we can't get [[User:Jeff]] to upgrade because his hosting deal depends on some ad stuff that won't port to newer versions. :( [[User:Liv2splain|Liv2splain]] ([[User talk:Liv2splain|talk]]) 04:45, 22 December 2022 (UTC)
:: Image uploads being open is usually nicer for everyone, except in the scenario while children decide to use it as an avenue for vandalism. I got enough on my hands already to be dealing with but this probably demands some attention '''[[User:Davidy22|Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 16:38, 22 December 2022 (UTC)
::: (Rerationalised under a new header, as a different issue, though also related to a prior section's 'insertion/revival' in response to the idiot concerned, too.) Appreciated, David. Noting that the inability for me to correct the account-led vandalism, last night, is the one factor that might eventually push me to establish a non-IP presence. But we had other volunteer accounts reacting fairly well to the trouble, and I knew we'd settle down soon enough. Anyhoo, Merry Christmas to you and the others on the side of stability, while I'm here and chatting away. [[Special:Contributions/172.71.178.136|172.71.178.136]] 17:00, 22 December 2022 (UTC)

::: I find it unfortunate that "rarity" is any sort of excuse for allowing this to happen. XKCD is a fantastic source of quality STEM entertainment, and thus is a great resource to get younger audiences interested in such fields through humor. Many high school age and younger people regularly view xkcd content. However, some of the comics are quite obscure or contain a lot of depth, which is why explainxkcd has been such a great resource for everyone to learn things that are outside of their depth (including younger audiences). The knowledge that someone can open explainxkcd and have the slightest chance that they see extreme gore/porn is absolutely absurd and unacceptable for a wiki that is serving solely family friendly science content. I can no longer recommend explainxkcd to people I know (and especially not younger people) because of the lack of modern anti-trolling tooling, and that really sucks. I understand the issues surrounding locking down the text explanations, but the images should be a trivially solvable problem. Compare a checksum between the image found at *.xkcd.com and the image uploaded and reject an image that doesn't match, or better yet *use the official xkcd RSS feed* (https://xkcd.com/rss.xml) to download the images directly, and don't allow any user edits of the images. Then you can deal with vandalization of the text some other time, locking down the images is really the highest priority here I think. ([[User:bkayes|bkayes]]) 04:17, 23 December 2022 (UTC)

== [[2659: Unreliable Connection]] ==

Could probably do with some page protection here. Thanks. [[Special:Contributions/162.158.34.231|162.158.34.231]] 23:41, 29 December 2022 (UTC)
:If you mean for the thing that [https://www.explainxkcd.com/wiki/index.php?title=2659:_Unreliable_Connection&diff=prev&oldid=303665 gets reverted very quickly], I think that's already dealt with quite nicely. And it isn't the only page that is targetted, so where do you stop? Whole-site lockdown, when the occasonal automated spam is equally automatically reverted? [[Special:Contributions/162.158.74.21|162.158.74.21]] 00:05, 30 December 2022 (UTC)
::Over the past couple of weeks, the edit history of this particular page has consisted of nothing but vandalism and it's subsequent reversion. The vandal doesn't seem to be targeting (m)any other pages, so protection should make them go away. [[Special:Contributions/172.69.79.158|172.69.79.158]] 21:43, 14 January 2023 (UTC)
:::Nonetheless, the same tactic has been seen (and reverted, promptly) on other comics, like #976. ''edit: ...and #2503 suffered this vandalism/reversion, again, on 15 Jan 2023.'' Block 2659 and 976 from editing and someone may easily change the config for the script and hit any othe page they please, not really reducing the ultimate change/revert frequency, just where it is happening.
:::I'll accept gradual locking down of progressively more and more of the site, if it happens, but I'm not sure it'd be of any real benefit to do so. Not my call, so just giving my POV... [[Special:Contributions/162.158.34.74|162.158.34.74]] 23:47, 14 January 2023 (UTC)
Someone pointed out that the spams are more likely to occur on pages with "Connect" in their titles. [[User:ColorfulGalaxy|ColorfulGalaxy]] ([[User talk:ColorfulGalaxy|talk]]) 10:49, 31 March 2023 (UTC)

The user talk page with the same name got spammed. [[Special:Contributions/172.69.134.242|172.69.134.242]] 06:18, 28 April 2023 (UTC)

== Announcement: online chat with Randall January 31 ==

Admins: would you please consider adding this blurb to the end of the [[MediaWiki:Sitenotice]] just for this month?

: [https://libraryc.org/mountainviewlibrary/22032 Register to attend an online chat] with [[Randall Munroe]] January 31 at 11am Pacific.

Thank you for your consideration. [[User:Liv2splain|Liv2splain]] ([[User talk:Liv2splain|talk]]) 06:23, 2 January 2023 (UTC)
:Done —[[User:Theusaf|theusaf]] ([[User talk:Theusaf|talk]]) 23:29, 4 January 2023 (UTC)
::Thank you! I'm very much looking forward to the well-attended zoom chat, let alone what should come from the large pool of questions from international fans. [[Special:Contributions/172.69.134.16|172.69.134.16]] 14:04, 5 January 2023 (UTC)

Archive of livestream: https://www.youtube.com/watch?v=dAEutGwIQ9c [[Special:Contributions/162.158.166.173|162.158.166.173]] 19:03, 31 January 2023 (UTC)

==All community portal==
Would you mind semi-protecting [[explain_xkcd:Community_portal/All|this]] and [[explain_xkcd_talk:Community_portal/All|that]] page? They don't seem to need edits. --[[User:ColorfulGalaxy|ColorfulGalaxy]] ([[User talk:ColorfulGalaxy|talk]]) 17:55, 12 January 2023 (UTC)

== Brief(?) and limited spate of vandalism. ==

It may be a flash in a pan, but there's some [https://www.explainxkcd.com/wiki/index.php?title=2293:_RIP_John_Conway&action=history misuse of multiple accounts] going on here as of this timestamp (with ColourfulGalaxy having mostly had to correct matters on their own, so far). FYI, on their behalf. With any luck the idiot involved will get bored soon, if not already, but making a note anyway. [[Special:Contributions/162.158.159.124|162.158.159.124]] 20:15, 12 January 2023 (UTC)

: He edited my user page just now. --[[User:ColorfulGalaxy|ColorfulGalaxy]] ([[User talk:ColorfulGalaxy|talk]]) 20:17, 12 January 2023 (UTC)

: I tried to help them, but failed. I had to turn to you for help. [[User:ChristmasGospel|ChristmasGospel]] ([[User talk:ChristmasGospel|talk]]) 20:24, 12 January 2023 (UTC)

: EDIT: By the way, don't call him "idiot", or he may be angry.

::Given that someone [https://www.explainxkcd.com/wiki/index.php?title=User:ColorfulGalaxy&curid=25508&diff=304689&oldid=303399 seems to be stalking you], and even snuck in some activity before ''my'' post, above, I'm starting to suspect something more. I leave it to those who can do things to sort it out. As an IP, I don't think I have any say in the matter, but I'll let others consider the possibilities. (You've got to be an idiot to clearly log in with the wrong account, though, and then fail to pick up the changes with the 'right' one. And I knew While False wasn't truly finished trying to do stupid things to the site... You're not impressing anybody, WF.) [[Special:Contributions/172.70.85.201|172.70.85.201]] 20:28, 12 January 2023 (UTC)
:::That’s not typical WF behaviour at all. —[[Special:Contributions/162.158.222.198|162.158.222.198]] 19:38, 27 January 2023 (UTC)

== The online chat s over ==

Please revert https://www.explainxkcd.com/wiki/index.php?title=MediaWiki:Sitenotice&diff=304122&oldid=239894 [[Special:Contributions/172.70.211.92|172.70.211.92]] 18:45, 1 February 2023 (UTC)

== Users involved in spamming. ==

There are at least three 'people' involved here, using trivial character differences/substitutions:
* https://www.explainxkcd.com/wiki/index.php/Special:Contributions/ElisabethPacheco
* https://www.explainxkcd.com/wiki/index.php/Special:Contributions/EIisabethPacheco
* https://www.explainxkcd.com/wiki/index.php/Special:Contributions/EIizabethPacheco
(...in case not obvious, especially in sans-serif, the second two use capital-I (i) instead of small-l (L), and the s/z difference should be obvious. No obvious signs of anything like using cyrillic look-alike characters, yet.)

There may be others, or will be, but these ones have just recently popped up in spamming (and then obfuscating? ...hoping to be reverted back into the spam version?) the redirect pages [[Drama‎‎]] and [[Google Maps]] (see [https://www.explainxkcd.com/wiki/index.php?title=Drama&action=history here] and [https://www.explainxkcd.com/wiki/index.php?title=Google_Maps&action=history here]), though they are currently fully reverted. [[Special:Contributions/172.70.90.35|172.70.90.35]] 04:33, 28 February 2023 (UTC)
:One of these also interacted with a differently named suspicious-looking/acting account:
:* https://www.explainxkcd.com/wiki/index.php/Special:Contributions/CipherGuide
:Could be a coincidence, but... For reference. [[Special:Contributions/172.71.242.190|172.71.242.190]] 13:18, 28 February 2023 (UTC)
:And now [[User:ElisabethPacheco (do not ban me)]]. [[User:AndroidTheLucario|AndroidTheLucario]] ([[User talk:AndroidTheLucario|talk]]) 03:54, 19 March 2023 (UTC)

Can someone block [[User:Email Trial 1]]? They're repeatedly adding comments on spamming other people's emails. Thanks! ~ [[user:megan|Megan]] she/her [[user talk:megan|talk]]/[[special:contribs/megan|contribs]] 16:25, 24 March 2023 (UTC)

== Ongoing image vandalism ==

by [[User:Troonjak|this user]] ([[Special:Contributions/Troonjak|contributions]]). ~ [[user:megan|Megan]] she/her [[user talk:megan|talk]]/[[special:contribs/megan|contribs]] 02:50, 11 March 2023 (UTC)

I suggest we raise the threshold for image uploads. After all, there's no reason for most editors to upload images. ~ [[user:megan|Megan]] she/her [[user talk:megan|talk]]/[[special:contribs/megan|contribs]] 03:13, 11 March 2023 (UTC)

== Fix obnoxious typo on the Editor FAQ ==

This page contains a typo and I can't edit it out: https://www.explainxkcd.com/wiki/index.php/explain_xkcd:Editor_FAQ

It's highlighted in this sentence:

"You can use the Math markup <nowiki><math>...</math></nowiki>. The other known code from Wikipedia <nowiki><chem>...</chem></nowiki> is not supported yet. It's based on LaTeX syntax and a general overview can be found at '''''it's''''' Wikipedia help page. Don't use it unless you actually understand what you are doing." Edit: Whoops, forgot to sign: [[User:FaviFake|FaviFake]] ([[User talk:FaviFake|talk]]) 09:04, 1 May 2023 (UTC)

== Update MediaWiki ==

The current MediaWiki version is 1.30.0 which ended support mid-2019, please upgrade to 1.39.x or something due to security concerns. Instructions here https://www.mediawiki.org/wiki/Manual:Upgrading [[User:Cam1170|Cam1170]] ([[User talk:Cam1170|talk]]) 20:55, 29 March 2023 (UTC)
Make sure to upgrade to 1.35 first, from the Check Requirements section.
Actually, 1.31 then 1.35 then 1.39 for the smoothest transition. [[User:Cam1170|Cam1170]] ([[User talk:Cam1170|talk]]) 15:15, 5 July 2023 (UTC)

I would like to add that this is still an issue. I don't know a better way to bring this to admin attention. [[User:Cam1170|Cam1170]] ([[User talk:Cam1170|talk]]) 21:28, 9 November 2023 (UTC)

== user edits someone else's comment ==

https://www.explainxkcd.com/wiki/index.php?title=Talk:2760:_Paleontology_Museum&diff=309970&oldid=309964 [[Special:Contributions/162.158.87.65|162.158.87.65]] 09:51, 8 April 2023 (UTC)
::That word is not spelled "Ye". It's "Þe". [[User:Omg Oriental Music Group|Omg Oriental Music Group]] ([[User talk:Omg Oriental Music Group|talk]]) 00:49, 9 April 2023 (UTC)
:::That would depend. We all (FCVO 'all') get your point, but is spelt (or, if you wish, "spelled", but I would like to use the other form) that way by the original commentator. And it was a signed Talk post, not an Explanation page that needs to be standardised(/standardized) by success revisions.
:::Can you also say for definite that it was not intended by the original author to be the second-person plural personal pronoun (nominative), correctly or otherwise, rather than the definite article (under a standard reduced typeset)? No reason to change it, not even if an actual tyop. [[Special:Contributions/172.71.178.207|172.71.178.207]] 11:56, 9 April 2023 (UTC)
:Yeah, bad practice, except where correcting clear mistakes or otherwise sanitising something best not left up in the open (for whatever good reason). Like if I'd misapplied a style "colour" tag, by accident, but not if I'd openly written "colour" in a Talk entry.
:But not necessary in this case of language-geek hyperconnection. I think a revert/re-edit to restore the original would be not an issue, but I won't do it myself.
:The best way to look smart with the "thorn" character would have been to say "You have 'Ye Olde blah-de-blah', but I hink you meant... [etc]" and own the joke and the smugness rather than try to 'improve' on the original in-situ. As one who has made typos (but also said exactly what I wanted to, perhaps deciding not to over-egg the pudding) I would prefer even a snarky "did you mean.." reply over an invisible 'improvement' that may not even be properly focused any more. Each to their own, but my suggestion, if the editor wants to revise their edit. [[Special:Contributions/172.71.178.65|172.71.178.65]] 15:54, 8 April 2023 (UTC)

== Deletion of wrongly-titled pages ==
Could you please delete [[:Category:Comics with small caps|this redirect]]? [[User:Memo Spike Connector|2503: Memo Spike Connector]] ([[User talk:Memo Spike Connector|talk]]) 06:18, 17 April 2023 (UTC)

Could you delete [[:Category;Comics featuring real people|this page]]? [[User:ClassicalGames|ClassicalGames]] ([[User talk:ClassicalGames|talk]]) 03:29, 15 June 2023 (UTC)

[[Usertalk:Billstz]] turned into a redirect. It should have been deleted. [[User:ColorfulGalaxy|ColorfulGalaxy]] ([[User talk:ColorfulGalaxy|talk]]) 21:10, 25 June 2023 (UTC)

== Repeated spam in user talk page ==
The page [[User talk:ClassicalGames]] got repeatedly spammed. Could you semiprotect it? [[Special:Contributions/172.69.134.242|172.69.134.242]] 02:07, 12 May 2023 (UTC)

:Hmmmmm, I think he really deserves the spam. He spammed in [[User:ColorfulGalaxy/Sandbox|someone else's user page]] without permission. [[Special:Contributions/172.71.154.228|172.71.154.228]] 03:56, 15 May 2023 (UTC)

:Easily reverted, to restore legitimate conversation. (Perhaps more such attention should go to where some people are [https://www.explainxkcd.com/wiki/index.php?title=2293:_RIP_John_Conway&curid=22901&diff=312913&oldid=312626 repeatedly making entirely useless and gratuitous edits]...) [[Special:Contributions/172.71.242.86|172.71.242.86]] 08:59, 12 May 2023 (UTC)
::Those spammers probably knew the CG rules, and appeared to have welcomed every CG group member with a spam. [[Special:Contributions/172.69.23.33|172.69.23.33]] 09:57, 12 May 2023 (UTC)

== The relevant xkcd comic from not xkcd ==

https://thomaspark.co/2017/01/relevant-xkcd/ This comic. A reference to xkcd, in the style of xkcd, about xkcd.

Can I make a page about it? Please? :)

== What's a "comic incarnate"? ==

[[User:Memo Spike Connector]] seems to have a friend group of users with the names of various comics. E's been changing their user pages ''and signatures'' to match the comic pages and titles. Is this some sort of cult? It sounds fun! Where do I sign up? --[[User:AndroidTheLucario|Your favorite aura doggo]] ([[User talk:AndroidTheLucario|talk]]) 03:18, 10 June 2023 (UTC)
:To answer the title, "incarnate"=="made flesh". Reincarnation is when you're given a new body, again, incarnation can therefore be taken as when the 'spirit' first assumes a tangible (or visible) form.
:To ponder on this fad of creating comic-related user accounts... pretty much unnecessary and has no reason to be encouraged, I suppose. [[Special:Contributions/172.70.162.62|172.70.162.62]] 03:52, 10 June 2023 (UTC)
::How do I join? I wanna be cool like them! --[[User:AndroidTheLucario|Your favorite aura doggo]] ([[User talk:AndroidTheLucario|talk]]) 03:59, 10 June 2023 (UTC)
:I think this needs to be taken more seriously now. [[User:Memo Spike Connector]] has had their page added to the *category* of Cursed Connectors, despite not being an official comic. It's starting to feel like a very unusual case of vandalism, but I'm not sure. [[User:Tsumikiminiwa|Tsumikiminiwa]] ([[User talk:Tsumikiminiwa|talk]]) 19:37, 14 June 2023 (UTC)
:: Addendum, [[User:Unreliable Connection]] has their page added to the Internet and Social Interactions categories. Everything else I said before still stands. [[User:Tsumikiminiwa|Tsumikiminiwa]] ([[User talk:Tsumikiminiwa|talk]]) 19:41, 14 June 2023 (UTC)

== Main page in phones category ==

The [[Main Page]] is now in the [[:Category:Phones]] category. [[User:ClassicalGames|ClassicalGames]] ([[User talk:ClassicalGames|talk]]) 03:25, 15 June 2023 (UTC)
:Surely because [[2789: Making Plans]], currently transcluded there, is legitimately given that category. I'd be more surprised if it wasn't. (Until Wednesday's new comic release changes this, if it does.) What's the problem, and how is it related to 'your' issue, above? [[Special:Contributions/172.71.178.146|172.71.178.146]] 10:04, 15 June 2023 (UTC)
::I moved this to its own section, but you can change the section title if you want. --[[User:AndroidTheLucario|Your favorite aura doggo]] ([[User talk:AndroidTheLucario|talk]]) 19:43, 15 June 2023 (UTC)

== please block u|Vandal (and many more)==

cf. [[Special:Contributions/Vandal]] 11 page blankings today. Thanks. [[User:JohnHawkinson|JohnHawkinson]] ([[User talk:JohnHawkinson|talk]]) 21:24, 4 July 2023 (UTC)

Actually, looking at [https://www.explainxkcd.com/wiki/index.php?title=Special:Log/newusers&limit=500&type=newusers&user= Special:Log/newusers] is pretty ominous. Nearly all of the last 500 (within the past 4 days), and also the next few thousand, are suspicious. The CAPTCHA probably needs to be replaced with something more difficult that is perhaps not as trivially automatable? And all those users blocked? Not sure. [[User:JohnHawkinson|JohnHawkinson]] ([[User talk:JohnHawkinson|talk]]) 22:05, 4 July 2023 (UTC)
:As a regular checker of such things, I know for a fact that you get hundreds of 'suspicious' accounts created every day, and most of them 'go nowhere'. The account creation speedblocks may not be very good. Or, possibly, tens of thousands of accounts are ''tried'' to be created, with 'just' a small percentage of them getting past the CAPTCHA/etc to get noticed by us - the actual top-level site admins will have access to the 'failed to register fully' logs. ''But'', the actual page vandalism is very rarely any of these 'mechanised spam accounts'. I presume because the CAPTCHAs throttle down the 'lucky' accounts' abilities to do anything they were programmed to do ''once'' registered. And, no, the accounts aren't blocked (i.e. disabled accounts, except on very ''rare'' occasions when an Admin gets annoyed with a conspicuously used spam-login), if the actual Block Log is to be believed, but so many get created and ''never'' used so it looks like the "new user early posts" precautionary checks do a very good job.
:We're also getting that idiot (I presume the same idiot as we've had for a year or two now) who manually creates accounts, such as you have been dealing with (and me, and others) over the last 24 hours or so. As a stupid human rather than a 'smart' bot, the CAPTCHA is no block to him/her/them. And the occasional IP gets used in that way, too (and I mostly successfully revert vandalism as only an IP; usefully, I hope) which might just be lazy vandalism, on top of the baseline stupidity. But the precautions against them are different. As with the 'Eric's ("Hi, I see your website needs improving - Eric"-types of message), which also seem to be handled by the community (and/or our automated blocking/reverting).
:I don't see increasing the severity of the CAPTCHA to be a solution to much, honestly. Not from my perspective, certainly, though I know there's no reason to take my own unattributable word on that.
:Instead, we should keep on keeping on. The community handles these things as they need to be. The admins know the 'hidden fight' going on in the background, but won't (and shouldn't) reveal too much about the extent of the first-line defences against bad faith 'automated' edits and the rest. [[Special:Contributions/172.70.90.140|172.70.90.140]] 08:13, 5 July 2023 (UTC)

Vandalism appeared again in [[2800]]. [[User:ColorfulGalaxy|ColorfulGalaxy]] ([[User talk:ColorfulGalaxy|talk]]) 20:07, 11 July 2023 (UTC)

== Ban fake IP ==

Could you ban [[User:172.68.102.XXX]]? His edits sound suspicious, and he seems to be fighting against us. [[User:ColorfulGalaxy|ColorfulGalaxy]] ([[User talk:ColorfulGalaxy|talk]]) 19:41, 11 July 2023 (UTC)

== Vandalism by 172.69.214.158 ==

Large number of extreme vandalism, which ThatoneU is valiantly yet inefficaciously fighting:

example from https://www.explainxkcd.com/wiki/index.php?title=1193:_Externalities&action=history

<pre>
(cur | prev) 01:04, 24 July 2023‎ 172.69.214.158 (talk)‎ . . (6,765 bytes) (-15,000)‎ . . (Undo revision 318344 by ThatoneU (talk)) (undo)
(cur | prev) 00:47, 24 July 2023‎ ThatoneU (talk | contribs)‎ m . . (21,765 bytes) (+15,000)‎ . . (undo)
(cur | prev) 00:46, 24 July 2023‎ 172.69.214.158 (talk)‎ . . (6,765 bytes) (-15,000)‎ . . (undo)
</pre>

== Vandalism on page 2805 ==

The latest comic page (2805) is currently being vandalized. Can an admin please look into it?

== Problem with new accounts and IPs ==

So I'm sure many of you are well aware of the vandalism happening recently. But what concerns me the most is that all the edits were done by many, many different IPs, meaning that we can't just block one, and this site could get overrun by systematic IP vandalism. Also, the new accounts being created seem very suspicious. For such a small community, there's no way that there can be around 100 new users each day. The actual usernames of the users seem to follow a very repetitive pattern (generic first name + generic last name + random number). [[Special:Contributions/172.70.42.209|172.70.42.209]] 18:44, 24 July 2023 (UTC)
:As a fellow IP (and not a vandal myself, at least by intent) I find that the advantages of being able to leap in and correct (often 'named') damage outweigh the relatively small amount of IP-led vandalism. And the details of how the IPs represent the (limited, but geographically distributed) Cloudflare gateways has been noted before a number of times, together with what can be done about/with them.
:About the new accounts... Look back for ''years'', and you'll see the same (or similar) patterns. Almost all the truly rogue (presumably automated generation/'registering') then do nothing else as the site blocks the (still automated) attempts to do something with them.
:The worst danger this site is threatened by is the actual manually-posting individuals who (IPed or named) can do what they like so long as (like us legitimate editors) they are prepared to be sat at the keyboard and spend/waste the time in navigating the initial CAPTCHAs/etc to set down their changes. And there's not much more anybody can do about them without ruining everyone else's experience to a similar degree. Perhaps there's some adjustments possible, but none seem necesary to address the account-spam and other precautions are intercepting/reverting the lion's share of the edit-spam (with or without accounts).
:Not up to me, but I trust in those who it is up to. To continue with what is happening right now or to respond in new ways to anything that needs a new approach. Not saying that I don't have ideas of my own, for if I were able to intervene, but I doubt it'd be useful to voice them. [[Special:Contributions/172.70.162.158|172.70.162.158]] 21:12, 24 July 2023 (UTC)

== Large amounts of vandalism involving disturbing imagery. ==

Page 2805 has a huge vandalism problem. Vandals (it seems to be the same few people over and over, or maybe one person with multiple addresses) keep covering the page with weird, disturbing photos and way-too-bright colors.
A few people have been valiantly fighting back but that doesn't mean this isn't a problem.
I would like to please request that the page be locked to prevent further vandalism, and that you please ban all the people that have vandalized it in this way before (and/or take some other action to prevent future vandals) . Thank you very much! [[User:(insert name here)|(insert name here)]] ([[User talk:(insert name here)|talk]]) 01:20, 25 July 2023 (UTC)

There also seems to be a parser problem where instead of vandals replacing the page source, the vandalism is appended to the end, even though it isn't in the source. [[Special:Contributions/172.71.174.230|172.71.174.230]] 03:39, 25 July 2023 (UTC)

The optimal way to go would be to add bots that automatically replace questionable content like divs and detect image/word spam (like the one in Wikipedia). They would always be on so the vandals would get overwhelmed. Similarly I'd suggest monitoring the constant stream of IP addresses and created accounts. Most editors are IP addresses though, so you might want to watch out for that. Does ExplainXKCD have semiprotection capabilities? You would definitely want to do that, especially the important articles like [[xkcd]], [[Randall Munroe]], [[Cueball]], [[1:_Barrel_-_Part_1]], and ALL of the templates (the vandals were targeting those the most). [[User:84596Gamma|84596Gamma]] ([[User talk:84596Gamma|talk]]) 11:53, 25 July 2023 (UTC)

: I agree that the important pages (primary pages, plus all templates) need to be protected somehow so that this can't happen again. It's nice to have a low threshold to editing; it's nicer having a resource that can be depended on and doesn't require random volunteers jumping in to save. (Let's be honest; the images the vandal posted could have been much, much worse.) -- [[User:Dtgriscom|Dtgriscom]] ([[User talk:Dtgriscom|talk]]) 12:28, 25 July 2023 (UTC)

:: What the heck is 'Explain XKCD Administrator' doing? He seems to also be doing some weird div BS, making it so that it's impossible to scroll or click on templates or some comics. Blocking would be heavily advised. [[User:84596Gamma|84596Gamma]] ([[User talk:84596Gamma|talk]]) 12:39, 25 July 2023 (UTC)

== Becoming an admin? ==

Hi. I've been contributing occasionally for eight years now, and I think I've been helpful. But, almost half of the edits were last night in that wave of vandalism. It was very frustrating knowing that I had the same tools as the (14-year-old?) vandal, and the only end-point to the fun would be one of us throwing in the towel, and it was probably going to me (bedtime).

I don't have the time and/or commitment to do regular moderation work, but I (think I) am a reasonable person, who deals with conflicts rationally and could help out in a pinch. Is there a chance I could be given some more powers to help out if (when) such a crap-storm happens again? Thanks for your consideration... -- [[User:Dtgriscom|Dtgriscom]] ([[User talk:Dtgriscom|talk]]) 11:14, 25 July 2023 (UTC)

:I saw your efforts, early on in my own day, definitely looked to be amongst the helpful editors. I later picked up several cases (might have missed a couple, that others IDed before me) after I got online, and undid that latest form of vandalism in both templates (agree with above, they probably should be semi-protected) and pages. A simple Undo even at my level was sufficient to revert practically everything. What might have been handy was one of the top-moderators being around to use the mass-revert tools to streamline that, and keep on top of the account (or account''s'', as the problematic one would definitely open new accounts - we've seen them do this before) deserving to be blocked and banished. Unfortunately, the freedom of a wiki (which I value) doesn't really work well with over-administration. But that's a discussion to be had by those already at the top levels. I don't envy them. [[Special:Contributions/172.70.90.164|172.70.90.164]] 18:08, 25 July 2023 (UTC)

:: Well, the 14-year-old is back. I'm losing interest in fighting this mud-fest without real admin tools. -- [[User:Dtgriscom|Dtgriscom]] ([[User talk:Dtgriscom|talk]]) 20:11, 25 July 2023 (UTC)
::: We really need to stop this wave of persistent vandalism with protection. When will the admins notice our suffering? [[User:84596Gamma|84596Gamma]] ([[User talk:84596Gamma|talk]]) 20:23, 25 July 2023 (UTC)
::: I feel your pain. I caught (and had to recatch) a few of them as he turned up whilst I was browsing/considering proper edits. nd then I noticed you had appeared and were also retroing them, just as I thought I was barely keeping pace. But he's slackened off, so maybe you arriving here has made the difference. (And I'm fed up with pictures of fire hydrants!) [[Special:Contributions/172.70.91.214|172.70.91.214]] 20:20, 25 July 2023 (UTC)
::::Me too... I'm coming to help. Hopefully we can fight that manchild off. Also I call death and destruction to Captcha. [[User:84596Gamma|84596Gamma]] ([[User talk:84596Gamma|talk]]) 20:22, 25 July 2023 (UTC)
:::: It's frustrating to watch the same few IP addresses wreak all this havoc. Being able to ban them would be a joy; why can't we have that power? -- [[User:Dtgriscom|Dtgriscom]] ([[User talk:Dtgriscom|talk]]) 20:31, 25 July 2023 (UTC)
::::: OK: 2/3 of my contributions have been in the last 24 hours fighting Bozo-Man in all his flamboyant IP addresses. Without further powers, I'm done, because (unlike Bozo-Man) I have better things to do. Sorry... -- [[User:Dtgriscom|Dtgriscom]] ([[User talk:Dtgriscom|talk]]) 22:39, 25 July 2023 (UTC)
:::::: What powers do you need? --[[User:Jeff|Jeff]] ([[User talk:Jeff|talk]])
::::::: I'm not looking for Super Duper Guru™ powers, just something that would even the battle a bit. No, that's not true: I'm looking for something that would make the battle ''unfair'' by making it easier to clean things up than it is to vandalize them. For instance, of the 123 vandalisms I reverted over the pat 24 hours, a third of them were from the top four IP addresses, and two thirds were from the top ten. If you only look at the first three quads of the IP addresses, half came from just two subnets. Block a few IP addresses, and the moderation load would go way down. (And that ignores the work the other users did.)
::::::: It makes sense that you wouldn't want to be handing out Thor's Hammer indiscriminately, but (IMO) something needs to change. If MediaWiki's moderation permissions aren't selective enough for your tastes, I'd be happy to follow your guidance (e.g. no blocking people for more than 24 hours). -- [[User:Dtgriscom|Dtgriscom]] ([[User talk:Dtgriscom|talk]]) 01:16, 26 July 2023 (UTC)
:::::::: Congrats, you are promoted, thanks for helping out. See me in a week if you still want the powers. --[[User:Jeff|Jeff]] ([[User talk:Jeff|talk]])
::::::::: Thank you. Any guidance for the newbie admin? Or should I just "moderate moderately"? -- [[User:Dtgriscom|Dtgriscom]] ([[User talk:Dtgriscom|talk]]) 01:33, 26 July 2023 (UTC)
:::::::::: Block and move... block and move. Great power / great responsibility and all that. --[[User:Jeff|Jeff]] ([[User talk:Jeff|talk]])

== Preventation of vandalism ==

I'll bet the entire budget of the Death Star II that the vandalizer is going to strike again in a few hours. We should be more prepared - I've already cut links to templates, and we should be vigilant about the pages they are going to attack: the current comic, templates, important pages. [[User:84596Gamma|84596Gamma]] ([[User talk:84596Gamma|talk]]) 00:06, 26 July 2023 (UTC)
: What do you need to help? Let me know. --[[User:Jeff|Jeff]] ([[User talk:Jeff|talk]])
:: Semiprotect all the templates. [[User:84596Gamma|84596Gamma]] ([[User talk:84596Gamma|talk]]) 00:52, 26 July 2023 (UTC)

== Username request ==

It looks like an impersonator registered an account under my name. Is it possible for me to get that username? [[User:Randall Munroe 2|Randall Munroe 2]] ([[User talk:Randall Munroe 2|talk]]) 04:41, 30 July 2023 (UTC)
:: To ask an obvious question: who are you? And, if you say you are the Randall Munroe of XKCD fame, how can we be sure? -- [[User:Dtgriscom|Dtgriscom]] ([[User talk:Dtgriscom|talk]]) 12:41, 30 July 2023 (UTC)
::''May I have your attention, please?''
::''May I have your attention, please?''
::''Will the real Randall Munroe please stand up?''
::''I repeat''
::''Will the real Randall Munroe please stand up?''
::''We're gonna have a problem here...''
::(...but, in my assessmemt, Randall would have actual more direct ways of introducing himself to; if he suddenly decided to muddy the water by descending to our level when his interactions even with the forum were minimal; if he hasn't already been here/there/wherever all along, incognito and with/without the administrators knowing this. But Randall's technical and connected enough to not need to ask the above the way it was asked.) [[Special:Contributions/172.70.162.181|172.70.162.181]] 15:36, 30 July 2023 (UTC)

== user page ==

how do i put stuff in my profile? others have done it but for mine it says that i don't have permission to create that page [[User:An user who has no account yet|An user who has no account yet]] ([[User talk:An user who has no account yet|talk]]) 16:01, 5 September 2023 (UTC)
: Don't know why you couldn't, but I now have created your user and talk pages; let us know if you now can't edit them. [[User:Dtgriscom|Dtgriscom]] ([[User talk:Dtgriscom|talk]]) 16:08, 5 September 2023 (UTC)
:: There appears to be a rather restrictive page creation policy (it may be dialled up fairly high to age of account, possibly more so than any mere contributions-count), at least in regard to User-typed namespaces. Many account-creators have noted this, and had to be helped out. I suspect it's just their making that An User was ever prevented from. After all, even I can add things to User (and, more correctly and politely, User Talk) pages. And I'm not even a usernamed person. [[Special:Contributions/172.70.85.230|172.70.85.230]] 20:28, 5 September 2023 (UTC)

== Unable to edit ==
For the last two months, I was unable to make any edits. Is my account secretly locked? Also, I couldn't even post tweets. Did I offend you? [[User:ConlangGuide|ConlangGuide]] ([[User talk:ConlangGuide|talk]]) 23:38, 27 September 2023 (UTC)

:Also, I tried to post on ClassicalGames's talk page but it was messy. [[User:ConlangGuide|ConlangGuide]] ([[User talk:ConlangGuide|talk]]) 23:43, 27 September 2023 (UTC)

== cannot create user page ==

Like all the other instances of this, it just says "There is currently no text in this page. You can search for this page title in other pages, or search the related logs, but you do not have permission to create this page." At least it isn't just me [[User:SomeoneIGuess|someone, i guess]] ([[User talk:SomeoneIGuess|talk]]) 16:43, 17 October 2023 (UTC)

: Created your user and talk page with placeholder text (".") -- [[User:Dtgriscom|Dtgriscom]] ([[User talk:Dtgriscom|talk]]) 19:20, 17 October 2023 (UTC)

:: much thanks! now to wait until i can make my own custom css page [[User:SomeoneIGuess|someone, i guess]] ([[User talk:SomeoneIGuess|talk]]) 19:38, 17 October 2023 (UTC)

== Small css-related changes to two templates ==

I've explained what changes I want made in the talk pages for [[Template:Comic]] and [[Template:Comic discussion]] already, but I think I might need to mention them here too. Changing the templates shouldn't cause any adverse effects, and allow for more versatility for users who create their own CSS. [[User:SomeoneIGuess|someone, i guess]]([[User talk:SomeoneIGuess|talk i guess]]|[[Special:Contributions/SomeoneIGuess|le edit list]])

: You should sign your comments with "-- ~~~~", which will insert your username. And, there's a very low chance that anyone with the power to change the CSS to wander by; we've been on our own for a while. -- [[User:Dtgriscom|Dtgriscom]] ([[User talk:Dtgriscom|talk]]) 22:01, 20 October 2023 (UTC)

: Added the class names. —[[User:Theusaf|theusaf]] ([[User talk:Theusaf|talk]]) 15:39, 1 November 2023 (UTC)

:: THANK YOU!!! The face of pure shock and excitement i felt when seeing this was beyond my wildest dreams ˶ᵔ ᵕ ᵔ˶ [[User:SomeoneIGuess|someone, i guess]]([[User talk:SomeoneIGuess|talk i guess]]|[[Special:Contributions/SomeoneIGuess|le edit list]]) 15:46, 2 November 2023 (UTC)

== Math Module breaks all pages with it ==

[[2070]] and [[2034]] appear to be broken for some reason. They wont load at all with the following reason:

<code>
MediaWiki internal error.

Original exception: [ZUPRak3GkbeSokPCcKIp8AAAAJI] 2023-11-02 16:42:18: Fatal exception of type "MWException"

Exception caught inside exception handler.

Set $wgShowExceptionDetails = true; at the bottom of LocalSettings.php to show detailed debugging information.</code>

[[User:SomeoneIGuess|someone, i guess]]([[User talk:SomeoneIGuess|talk i guess]]|[[Special:Contributions/SomeoneIGuess|le edit list]]) 16:42, 2 November 2023 (UTC)
:: [[2295]] also broken. Must be related to the Math module. [[User:SomeoneIGuess|someone, i guess]]([[User talk:SomeoneIGuess|talk i guess]]|[[Special:Contributions/SomeoneIGuess|le edit list]]) 16:44, 2 November 2023 (UTC)
:: Full list of broken pages:
::* [[128: dPain over dt]]
::* [[687: Dimensional Analysis]]
::* [[849: Complex Conjugate]]
::* [[899: Number Line]]
::* [[969: Delta-P]]
::* [[1047: Approximations]]
::* [[2028: Complex Numbers]]
::* [[2034: Equations]]
::* [[2048: Curve-Fitting]]
::* [[2059: Modified Bayes' Theorem]]
::* [[2070: Trig Identities]]
::* [[2117: Differentiation and Integration]]
::* [[2295: Garbage Math]]
::* Possibly more [[User:SomeoneIGuess|someone, i guess]]([[User talk:SomeoneIGuess|talk i guess]]|[[Special:Contributions/SomeoneIGuess|le edit list]]) 00:14, 3 November 2023 (UTC)
:::On further analysis, it seems to be related to the MathML setting. [[User:SomeoneIGuess|someone, i guess]]([[User talk:SomeoneIGuess|talk i guess]]|[[Special:Contributions/SomeoneIGuess|le edit list]]) 19:23, 9 November 2023 (UTC)

== Way to contact the site hosters? ==

I have tried posting at Jeff's talk page to no avail. Maybe yáll admins have a red phone hotline to Jeff? See reasons at [[explain xkcd:Community portal/Technical#Way to contact the site hosters?]]. [[User:Aaron Liu|Aaron Liu]] ([[User talk:Aaron Liu|talk]]) 01:34, 9 December 2023 (UTC)

== Escape speed is no longer incomplete ==

Can you delete the text at the top that says ''"We still need to complete some explanations like this one: 2765: Escape Speed. All incomplete explanations are here."''? Escape speed is no longer incomplete, so that is wrong.[[User:B_for_brain|B for brain]] ([[User_talk:B_for_brain|talk]]) ([https://www.youtube.com/channel/UCg4bo-hj-mDyOOUp_Yp0pug youtube channel] [https://bforbrain.weebly.com/ wobsite (supposed to be a blag)] 14:03, 27 December 2023 (UTC)

== Vandal Issue ==

we've got vandals all over [[2875: 2024]], and they're getting persistent [[User:SomeoneIGuess|someone, i guess]]([[User talk:SomeoneIGuess|talk i guess]]|[[Special:Contributions/SomeoneIGuess|le edit list]]) 16:50, 2 January 2024 (UTC)
:At least one vandalism per minute. Even with Someoene and I both reverting, it's showing the racist message most of the time. Can Explainxkcd protect a page? [[User:Nitpicking|Nitpicking]] ([[User talk:Nitpicking|talk]]) 17:54, 2 January 2024 (UTC)

2875: 2024

2024-01-02T18:08:40Z

Linneris: Undo revision 331962 by 172.69.194.226 (talk)

<noinclude>:''This page refers to the comic named "2024". For comic #2024, see [[2024: Light Hacks]].''</noinclude>
{{comic
| number = 2875
| date = January 1, 2024
| title = 2024
| image = 2024_2x.png
| imagesize = 740x553px
| noexpand = true
| titletext = It wasn't originally constitutionally required, but presidents who served two terms have traditionally followed George Washington's example and gotten false teeth.
}}

==Explanation==
{{incomplete|Created by OBAMA'S TEETH - Please change this comment when editing this page. Do NOT delete this tag too soon.}}
In what starts off almost like a "[[:Category:Comics to make one feel old|doesn't time fly?]]" scene, the unstoppable progression of the calendar is observed, as [[Ponytail]] points out that it's now 2024. [[Cueball]], in response, notes that it is an election year, in this context a {{w|President of the United States#Election|US ''Presidential'' election}} year, which occurs every four years and has (in one form or other) since 1788. Ponytail then replies in some form of exasperated tone that they "keep on happening", which is true but (normally) unsurprising, even/especially with other major elections happening every two years, presumably not compared to how [https://www.bristol247.com/news-and-features/news/youre-joking-not-another-one/ some other democracies] might be less predictable/more frequent.

On top of this, Ponytail seems to have not been aware (or maybe has chosen to forget) the passing of two whole election cycles (and two newer incumbents) as the discussion focuses upon {{w|Barack Obama}}, the ''former'' US President. Ponytail seems to be quite behind the times as she asks if Obama is still president (he left office January 20th, 2017, which was 7 (!) years ago, a fact that Cueball cannot quite believe Ponytail is ignorant of). Ponytail states that she liked him, and wonders if he'll be up for taking on the position again. But Cueball states that he ''can't'' be made President again, having already served two terms, which Ponytail confirms by checking for herself the details of the {{w|Twenty-second Amendment to the United States Constitution}}.

The humor in the comic comes in the second half; Cueball and Ponytail discuss whether Obama is the same person (like the mythical {{w|Ship of Theseus}}, most of his constituent cells are frequently replaced), with Ponytail looking into the possibility of Obama's re-election based upon philosophical/biological technicalities (as applied to the Constitution's words), rather than as legal/political convention might normally suggest. But when even that approach is seen to be wanting, requiring a wait significantly exceeding 30 years, Ponytail suggests negating that issue by having all of Obama's teeth removed and replaced with false teeth.

In order to facilitate the latter goal, Ponytail announces her intention to consult a dentist and (for exact reasons that can only be guessed at) a lawyer. Seeing where her current misplaced, and {{w|Dunning–Kruger effect|less than informed}}, zeal might be leading her, Cueball gives his prediction that the probable {{w|Supreme Court of the United States|ultimate legal arbiters}} of her plan might be unanimous in rejecting its validity (if not dissuading its attempt). SCOTUS being unanimous on an issue is now a [https://www.scotusblog.com/2022/07/as-unanimity-declines-conservative-majoritys-power-runs-deeper-than-the-blockbuster-cases/ comparatively rare event].

The title text references {{w|George Washington's teeth|George Washington's (in)famous 'false teeth'}}. Washington's dentures are often falsely claimed to be made of wood; in truth they were ''real'' teeth procured from other sources. Regardless, this would have likely resolved the rather specific problems established in the philosophical conundrum, and the title text claims that other presidents used this plan to get around the Constitutional limitations concerned in case they wanted to serve more than two terms.

However, no one has yet even ''needed'' to carry out this plan. Only one President has exceeded the limit; {{w|Franklin D. Roosevelt}} died in office during his ''fourth'' term, but he served prior to the 22nd Amendment and was thus unaffected by the rule, which was enacted six years after his death. (FDR did have a partial denture, but given that he retained some of his natural teeth, he did not engage in Ponytail's proposed scheme.) Presidents since then have definitely tried various schemes aimed at securing a second term, with both successes and failures, but nobody has yet planned ''this particular plan'' to achieve a third or beyond. Or at least one can assume that those that perhaps did (including, as noted, all those who were not yet 'required' to go to these lengths) failed to attain their goals for entirely different reasons.

==Transcript==
{{incomplete transcript|Do NOT delete this tag too soon.}}

:[Ponytail and Cueball are walking.]
:Ponytail: So this is 2024.
:Cueball: Yup. Guess it's an election year now.
:Ponytail: Again? Man, those just keep happening, huh?

:[Ponytail and Cueball now standing.]
:Ponytail: Who's the president these days, anyway? Is it still Obama?
:Cueball: What? No? He hasn't been... How do you not...

:[Ponytail and Cueball still standing.]
:Ponytail: Darn, I liked him. Is he running this time?
:Cueball: No, he's not allowed to.
:Ponytail: He's not? Why?
:Cueball: Constitution.

:[Ponytail checks her smartphone.]
:Phone: ''Amendment 22''
:Phone: No person shall be elected to the office of the president more than twice
:Ponytail: What?? C'mon...

:[Ponytail talking to Cueball.]
:Ponytail: Don't all your cells get replaced every seven years, Ship of Theseus-style? Is he even the same person?
:Ponytail: Maybe "no person shall be elected more than twice" isn't a prohibition, it's more of an observation, like "you can't step in the same river twice."

:[Zoom in on Cueball.]
:Cueball: Isn't the cell thing a myth?
:Cueball: I think tooth enamel has a turnover half-life of 30+ years. His teeth molecules are probably the same.

:[Ponytail heads off with a finger raised.]
:Ponytail: So if Obama just gets false teeth, he can run again! I need to talk to a dentist and a lawyer!
:Cueball: The Supreme Court is about to vote 9-0 to block your number.

{{comic discussion}}

[[Category:Comics featuring Ponytail]]
[[Category:Comics featuring Cueball]]
[[Category:Elections]]
[[Category:Politics]]
[[Category:Biology]]

2875: 2024

2024-01-02T18:06:27Z

Linneris: Undo revision 331960 by 172.71.242.196 (talk)

<noinclude>:''This page refers to the comic named "2024". For comic #2024, see [[2024: Light Hacks]].''</noinclude>
{{comic
| number = 2875
| date = January 1, 2024
| title = 2024
| image = 2024_2x.png
| imagesize = 740x553px
| noexpand = true
| titletext = It wasn't originally constitutionally required, but presidents who served two terms have traditionally followed George Washington's example and gotten false teeth.
}}

==Explanation==
{{incomplete|Created by OBAMA'S TEETH - Please change this comment when editing this page. Do NOT delete this tag too soon.}}
In what starts off almost like a "[[:Category:Comics to make one feel old|doesn't time fly?]]" scene, the unstoppable progression of the calendar is observed, as [[Ponytail]] points out that it's now 2024. [[Cueball]], in response, notes that it is an election year, in this context a {{w|President of the United States#Election|US ''Presidential'' election}} year, which occurs every four years and has (in one form or other) since 1788. Ponytail then replies in some form of exasperated tone that they "keep on happening", which is true but (normally) unsurprising, even/especially with other major elections happening every two years, presumably not compared to how [https://www.bristol247.com/news-and-features/news/youre-joking-not-another-one/ some other democracies] might be less predictable/more frequent.

On top of this, Ponytail seems to have not been aware (or maybe has chosen to forget) the passing of two whole election cycles (and two newer incumbents) as the discussion focuses upon {{w|Barack Obama}}, the ''former'' US President. Ponytail seems to be quite behind the times as she asks if Obama is still president (he left office January 20th, 2017, which was 7 (!) years ago, a fact that Cueball cannot quite believe Ponytail is ignorant of). Ponytail states that she liked him, and wonders if he'll be up for taking on the position again. But Cueball states that he ''can't'' be made President again, having already served two terms, which Ponytail confirms by checking for herself the details of the {{w|Twenty-second Amendment to the United States Constitution}}.

The humor in the comic comes in the second half; Cueball and Ponytail discuss whether Obama is the same person (like the mythical {{w|Ship of Theseus}}, most of his constituent cells are frequently replaced), with Ponytail looking into the possibility of Obama's re-election based upon philosophical/biological technicalities (as applied to the Constitution's words), rather than as legal/political convention might normally suggest. But when even that approach is seen to be wanting, requiring a wait significantly exceeding 30 years, Ponytail suggests negating that issue by having all of Obama's teeth removed and replaced with false teeth.

In order to facilitate the latter goal, Ponytail announces her intention to consult a dentist and (for exact reasons that can only be guessed at) a lawyer. Seeing where her current misplaced, and {{w|Dunning–Kruger effect|less than informed}}, zeal might be leading her, Cueball gives his prediction that the probable {{w|Supreme Court of the United States|ultimate legal arbiters}} of her plan might be unanimous in rejecting its validity (if not dissuading its attempt). SCOTUS being unanimous on an issue is now a [https://www.scotusblog.com/2022/07/as-unanimity-declines-conservative-majoritys-power-runs-deeper-than-the-blockbuster-cases/ comparatively rare event].

The title text references {{w|George Washington's teeth|George Washington's (in)famous 'false teeth'}}. Washington's dentures are often falsely claimed to be made of wood; in truth they were ''real'' teeth procured from other sources. Regardless, this would have likely resolved the rather specific problems established in the philosophical conundrum, and the title text claims that other presidents used this plan to get around the Constitutional limitations concerned in case they wanted to serve more than two terms.

However, no one has yet even ''needed'' to carry out this plan. Only one President has exceeded the limit; {{w|Franklin D. Roosevelt}} died in office during his ''fourth'' term, but he served prior to the 22nd Amendment and was thus unaffected by the rule, which was enacted six years after his death. (FDR did have a partial denture, but given that he retained some of his natural teeth, he did not engage in Ponytail's proposed scheme.) Presidents since then have definitely tried various schemes aimed at securing a second term, with both successes and failures, but nobody has yet planned ''this particular plan'' to achieve a third or beyond. Or at least one can assume that those that perhaps did (including, as noted, all those who were not yet 'required' to go to these lengths) failed to attain their goals for entirely different reasons.

==Transcript==
{{incomplete transcript|Do NOT delete this tag too soon.}}

:[Ponytail and Cueball are walking.]
:Ponytail: So this is 2024.
:Cueball: Yup. Guess it's an election year now.
:Ponytail: Again? Man, those just keep happening, huh?

:[Ponytail and Cueball now standing.]
:Ponytail: Who's the president these days, anyway? Is it still Obama?
:Cueball: What? No? He hasn't been... How do you not...

:[Ponytail and Cueball still standing.]
:Ponytail: Darn, I liked him. Is he running this time?
:Cueball: No, he's not allowed to.
:Ponytail: He's not? Why?
:Cueball: Constitution.

:[Ponytail checks her smartphone.]
:Phone: ''Amendment 22''
:Phone: No person shall be elected to the office of the president more than twice
:Ponytail: What?? C'mon...

:[Ponytail talking to Cueball.]
:Ponytail: Don't all your cells get replaced every seven years, Ship of Theseus-style? Is he even the same person?
:Ponytail: Maybe "no person shall be elected more than twice" isn't a prohibition, it's more of an observation, like "you can't step in the same river twice."

:[Zoom in on Cueball.]
:Cueball: Isn't the cell thing a myth?
:Cueball: I think tooth enamel has a turnover half-life of 30+ years. His teeth molecules are probably the same.

:[Ponytail heads off with a finger raised.]
:Ponytail: So if Obama just gets false teeth, he can run again! I need to talk to a dentist and a lawyer!
:Cueball: The Supreme Court is about to vote 9-0 to block your number.

{{comic discussion}}

[[Category:Comics featuring Ponytail]]
[[Category:Comics featuring Cueball]]
[[Category:Elections]]
[[Category:Politics]]
[[Category:Biology]]

2875: 2024

2024-01-02T10:23:28Z

Linneris: revert vandalism; Undo revision 331839 by 172.70.85.23 (talk)

<noinclude>:''This page refers to the comic named "2024". For comic #2024, see [[2024: Light Hacks]].''</noinclude>
{{comic
| number = 2875
| date = January 1, 2024
| title = 2024
| image = 2024_2x.png
| imagesize = 740x553px
| noexpand = true
| titletext = It wasn't originally constitutionally required, but presidents who served two terms have traditionally followed George Washington's example and gotten false teeth.
}}

==Explanation==
{{incomplete|Created by OBAMA'S TEETH - Please change this comment when editing this page. Do NOT delete this tag too soon.}}

In what starts off almost like a "[[:Category:Comics to make one feel old|doesn't time fly?]]" scene, the unstoppable progression of the calendar is observed, as [[Ponytail]] points out that it's now 2024. [[Cueball]], in response, notes that it is an election year, in this context a {{w|President of the United States#Election|US ''Presidential'' election}} year, which occurs every four years and has (in one form or other) since 1788. Ponytail then replies in some form of exasperated tone that they "keep on happening", which is true but (normally) unsurprising, even/especially with other major elections happening every two years, presumably not compared to how [https://www.bristol247.com/news-and-features/news/youre-joking-not-another-one/ some other democracies] might be less predictable/more frequent.

On top of this, Ponytail seems to have not been aware (or maybe has chosen to forget) the passing of two whole election cycles (and two newer incumbents) as the discussion focuses upon {{w|Barack Obama}}, the ''former'' US President. Ponytail seems to be quite behind the times as she asks if Obama is still president (he left office January 20th, 2017, which was 7 (!) years ago, a fact that Cueball cannot quite believe Ponytail is ignorant of). Ponytail states that she liked him, and wonders if he'll be up for taking on the position again. But Cueball states that he ''can't'' be made President again, having already served two terms, which Ponytail confirms by checking for herself the details of the {{w|Twenty-second Amendment to the United States Constitution}}.

The humor in the comic comes in the second half; Cueball and Ponytail discuss whether Obama is the same person (like the mythical {{w|Ship of Theseus}}, most of his constituent cells are frequently replaced), with Ponytail looking into the possibility of Obama's re-election based upon philosophical/biological technicalities (as applied to the Constitution's words), rather than as legal/political convention might normally suggest. But when even that approach is seen to be wanting, requiring a wait significantly exceeding 30 years, Ponytail suggests negating that issue by having all of Obama's teeth removed and replaced with false teeth.

In order to facilitate the latter goal, Ponytail announces her intention to consult a dentist and (for exact reasons that can only be guessed at) a lawyer. Seeing where her current misplaced, and {{w|Dunning–Kruger effect|less than informed}}, zeal might be leading her, Cueball gives his prediction that the probable {{w|Supreme Court of the United States|ultimate legal arbiters}} of her plan might be unanimous in rejecting its validity (if not dissuading its attempt). SCOTUS being unanimous on an issue is now a [https://www.scotusblog.com/2022/07/as-unanimity-declines-conservative-majoritys-power-runs-deeper-than-the-blockbuster-cases/ comparatively rare event].

The title text references {{w|George Washington's teeth|George Washington's (in)famous 'false teeth'}}. Washington's dentures are often falsely claimed to be made of wood; in truth they were ''real'' teeth procured from other sources. Regardless, this would have likely resolved the rather specific problems established in the philosophical conundrum, and the title text claims that other presidents used this plan to get around the Constitutional limitations concerned in case they wanted to serve more than two terms.

As already stated, however, no one has yet even ''needed'' to carry out this plan. Only one President has exceeded the limit; {{w|Franklin D. Roosevelt}} died in office during his ''fourth'' term, but he served prior to the 22nd Amendment and was thus unaffected by the rule, which was enacted six years after his death. (FDR did have a partial denture, but given that he retained some of his natural teeth, he did not engage in Ponytail's proposed scheme.) Presidents since then have definitely tried various schemes aimed at securing a second term, with both successes and failures, but nobody has yet planned ''this particular plan'' to achieve a third or beyond. Or at least one can assume that those that perhaps did (including, as noted, all those who were not yet 'required' to go to these lengths) failed to attain their goals for entirely different reasons.

==Transcript==
{{incomplete transcript|Do NOT delete this tag too soon.}}

:[Ponytail and Cueball are walking.]
:Ponytail: So this is 2024.
:Cueball: Yup. Guess it's an election year now.
:Ponytail: Again? Man, those just keep happening, huh?

:[Ponytail and Cueball now standing.]
:Ponytail: Who's the president these days, anyway? Is it still Obama?
:Cueball: What? No? He hasn't been... How do you not...

:[Ponytail and Cueball still standing.]
:Ponytail: Darn, I liked him. Is he running this time?
:Cueball: No, he's not allowed to.
:Ponytail: He's not? Why?
:Cueball: Constitution.

:[Ponytail checks her smartphone.]
:Phone: ''Amendment 22''
:Phone: No person shall be elected to the office of the president more than twice
:Ponytail: What?? C'mon...

:[Ponytail talking to Cueball.]
:Ponytail: Don't all your cells get replaced every seven years, Ship of Theseus-style? Is he even the same person?
:Ponytail: Maybe "no person shall be elected more than twice" isn't a prohibition, it's more of an observation, like "you can't step in the same river twice."

:[Zoom in on Cueball.]
:Cueball: Isn't the cell thing a myth?
:Cueball: I think tooth enamel has a turnover half-life of 30+ years. His teeth molecules are probably the same.

:[Ponytail heads off with a finger raised.]
:Ponytail: So if Obama just gets false teeth, he can run again! I need to talk to a dentist and a lawyer!
:Cueball: The Supreme Court is about to vote 9-0 to block your number.

{{comic discussion}}

[[Category:Comics featuring Ponytail]]
[[Category:Comics featuring Cueball]]
[[Category:Elections]]
[[Category:Politics]]
[[Category:Biology]]

2781: The Six Platonic Solids

2023-05-28T05:54:58Z

Linneris: spelling

{{comic
| number = 2781
| date = May 26, 2023
| title = The Six Platonic Solids
| image = the_six_platonic_solids_2x.png
| imagesize = 368x370px
| noexpand = true
| titletext = Plato made the solids, and five were gifted to the mathematicians. But in secret Plato forged a sixth solid to rule over all the others.
}}

==Explanation==
{{incomplete|Created by a JORB WELL DONE. Do NOT delete this tag too soon.}}

This comic imagines an alternate reality where mathematicians discover a new {{w|Platonic solid}} beyond the [https://sites.math.washington.edu/~julia/teaching/445_Spring2013/Paper_Euler.pdf five proven to exist in three-dimensional space.] In four dimensions, there are six {{w|regular polytope}}s, five of which are analogous to the five in 3-D space, and a sixth which is analogous to the {{w|rhombic dodecahedron}}.

In the comic, [[Randall]] reveals the discovery of a new Platonic solid, called the "jorb", which appears to be a roughly conical shape with a round base, a triangular tip, and a rectangular extension at the bottom. Its surface also seems to have parallel grooves or ribs, which may indicate a curved surface. The jorb does not meet the criteria for a Platonic solid, in that the faces must all be regular polygons of the same shape, and each vertex must join the same number of faces and edges. This could be a reference to the fact that [https://youtube.com/watch?v=_hjRvZYkAgA many regular polyhedra have only been discovered recently], most of which do not fit the naive understanding of a regular polyhedron, having irregular faces, being infinite, or self-intersecting. The name "jorb" may be a reference to the {{w|Homestar Runner}} cartoon "A Jorb Well Done", with the shape bearing a resemblance to Coach Z's hat.

The title text references the ''{{w|Lord of The Rings}},'' in which the "One Ring to Rule Them All" was forged in secret by {{w|Sauron}} to control the three magic rings given earlier to elves, seven given to dwarves, and nine given to humans, primarily by letting him visualize the wearers and their surroundings, and by allowing him to impose his will on the wearers, which for arcane reasons only worked reliably on humans (the nine {{w|Nazgûl}}.) The joke is that Plato forged a sixth Platonic solid, the jorb, to rule the five he "gave" to mathematicians, similarly to how Sauron ruled the other magic rings' wearers in Middle-earth with his One Ring.

==Transcript==
:[Six geometrical shapes are shown. All have gray surface areas with different shading to reflect their orientation. There is one shape in the middle with the other five arranged around it roughly in a pentagon. With two at the top, two just below the central and one directly below the central shape. Each shape has a label. The five above the bottom one are names after the platonic solids, and are drawn to look like them. The last one at the bottom has a roughly conical shape with a round base, a triangular tip, and a rectangular extension at the bottom. It surface also seems to have parallel grooves or ribs. Here the labels in reading order with the four rows mentioned above used.]
:Cube
:Dodecahedron
:Icosahedron
:Octahedron
:Tetrahedron
:Jorb

:[Caption below the comic:]
:Mathematicians long believed there were only five platonic solids, all regular polyhedra, until this year's discovery of the Jorb.

{{comic discussion}}

[[Category:Geometry]]
[[Category:Math]]
[[Category:LOTR]]
[[Category:Comics featuring real people]]

2757: Towed Message

2023-04-02T06:33:28Z

Linneris: let's not assume the pilot's gender :)

{{comic
| number = 2757
| date = March 31, 2023
| title = Towed Message
| image = towed_message_2x.png
| imagesize = 613x236px
| noexpand = true
| titletext = "Hi, what you do is fly over a designated zone and detach the--" "WE'RE SORRY, THE MOBILE CUSTOMER YOU ARE TRYING TO REACH IS OUT OF SERVICE"
}}

==Explanation==
{{incomplete|Created by an UNLANDABLE PLANE - Please change this comment when editing this page. Do NOT delete this tag too soon.}}
In this comic, an {{w|Aerial_advertising#Banner_towing|aircraft is towing a banner}}. Notably, these aircraft do not take off or land with the banner in tow, but instead have a hook and release mechanism to [https://www.wgbh.org/news/local-news/2022/09/02/the-surprising-way-those-beach-plane-banners-get-airborne add and drop the banner in flight]. The banner ''could'' be interpreted as a recruitment ad by an aerial advertising company looking for additional pilots. But the humorous interpretation is that the banner is a distress signal – the pilot of the aircraft doesn't know how to land, and is hoping that someone will see the banner and give assistance. This makes the banner self-referential, because the presence of the banner (which makes landing difficult) is the very reason for displaying the banner. It is paradoxical, because printing and deploying the banner requires planning, and if the pilot had anticipated that they would need assistance to land with a banner, they could have simply chosen not to deploy a banner in the first place.

The title text features a caller who dials the phone number from the banner and starts to explain the correct method for landing (detach the banner over a designated empty location then land the plane regularly), but the call is disconnected halfway through. Presumably the number is that of the pilot's cellphone. The call could have disconnected because the aircraft moved out of range of the {{w|cell site}} the phone was connected to and the phone failed to automatically connect to an adjacent cell; or possibly the cell network detected the call on {{w|Cellular_network#Frequency_reuse|multiple sites}} due to the phone's {{w|Mobile_phones_on_aircraft#Technical_discussion|altitude}} and disconnected it from the network; or the phone was simply destroyed on impact.

==Transcript==
{{incomplete transcript|Do NOT delete this tag too soon.}}

:[An airplane tows a banner. In the background, there are four small clouds and five birds]

:[Text on the banner:] Do '''''you''''' know how to land a plane that's towing a banner? Call '''555-0127''' now!

==Trivia==
* In a similar joke, a pilot used {{w|skywriting}} to write [https://laughingsquid.com/comedian-hires-pilot-to-skywrite-a-joke-over-los-angeles/ "How do I land?"] as a prank in 2013.
* Banner towing is generally safe for an experienced pilot, [https://www.aopa.org/news-and-media/all-news/2020/november/pilot/imperiled-pickup though not entirely without risk].
* The aircraft in the illustration is similar to a {{w|Piper J-3 Cub}}, which is popular for towing banners due to its low operating cost and good performance at low {{w|airspeed}}.
* Aircraft communication is usually done using {{w|radio}}. The {{w|aircraft emergency frequency}} at 121.5 MHz is reserved for aircraft emergencies including pilots in distress and needing assistance.
* Phone numbers beginning with "{{w|555 (telephone number)|555}}" are commonly used for fictional phone numbers in movies etc.
* The emphasis on the word ''you'' in the banner is reminiscent of ads such as the well-known {{w|Uncle_Sam|US Army recruitment poster}}.
* A similar concept was shown in [[1897: Self Driving]].

{{comic discussion}}

[[Category:Airplane banner]]
[[Category:Aviation]]

1218: Doors of Durin

2023-03-11T09:08:44Z

Linneris:

{{comic
| number = 1218
| date = May 29, 2013
| title = Doors of Durin
| image = doors of durin.png
| titletext = If we get the doors open and plug up the dam on the Sirannon so the water rises a little, the pool will start draining into Moria. How do you think the Watcher would fare against a drenched Balrog?
}}

==Explanation==
The comic is based on the ''{{w|Lord of the Rings}}'', specifically a scene from ''{{w|The Lord of the Rings: The Fellowship of the Ring}}'', where the eponymous fellowship is trapped outside the door to the {{w|Moria (Middle-earth)|Mines of Moria}}. There's a spoken password to open the doors, an Elvish inscription on them provides a clue: "Speak friend, and enter". The party leader ({{w|Gandalf}}) initially interprets this to mean that a friend could speak the password and enter. Only after many unsuccessful efforts does Gandalf realize it is actually a very simple riddle: The password is the Elvish word for "friend" ("mellon"), and the inscription should in fact be interpreted as "Speak [out loud the word] ''mellon'' [(the Elvish word for ''friend'')], and [you will be able to] enter". See the Wikipedia article {{w|Use–mention distinction}}.

In this comic, Cueball, White Hat, and Megan reenact the scene, with Cueball taking the role of Gandalf. The doors apparently open off-panel when the password is spoken. White Hat then wonders aloud what the Elvish word for "frenemy" is, and Cueball postulates "mellogoth". This is a {{w|portmanteau}} of "mellon" and "coth", much like how "frenemy" is a portmanteau of "friend" and "enemy". The {{w|Sindarin}} word-root ''coth'', in its {{w|Lenition|lenited}} form ''goth'', is best known as part of the name of {{w|Morgoth}} (literally, "Black Enemy") of the ''{{w|Silmarillion}}''. The doors apparently immediately slam shut the moment Cueball says ''mellogoth''. It is unclear whether this is because the opposite of the password has been spoken, or because the doors take offense to the word/concept ''frenemy'', of which xkcd has previously made fun in [[919: Tween Bromance]].

According to Fiona Jallings's textbook ''A Fan's Guide to Neo-Sindarin'', ''-n'' + ''c-'' would cause nasal mutation at the word boundary when forming a compound word, so a more correct compound word formed from ''mellon + coth'' would be ''mellochoth''.

The title text ponders what would occur if the Sirannon, a stream running adjacent to the path leading to the doors, were to be completely blocked with the doors left open. The already partially blocked Sirannon had formed a pool before the doors; which contained some sort of monstrous horror from the depths of the Earth, referred to as the {{w|Watcher in the Water}}. Randall seems to think that the pond draining into the mines would connect the Watcher with another horror within: the {{w|Balrog}} (a high-level servant of Morgoth) living within the depths of the mines. Balrogs are primarily creatures of fire and shadow, so having a bunch of water dumped on it is unlikely to please it but may weaken it. He then goes on to wonder about the outcome of a battle between the two monsters.

==Transcript==
:[White Hat, Megan, and Cueball stand. Megan has her finger up.]
:Megan: I've got it!
:Megan: What's the elvish word for friend?
:Cueball: ''Mellon.''

:[The trio stand. A off-panel door opens.]
:''RUMBLE''

:[White Hat has his palm out, while Cueball has his palm on his chin.]
:White Hat: So what's the elvish word for "frenemy"?
:Cueball: ''...Mellogoth?''
:'''SLAM!!'''

{{comic discussion}}
[[Category:Comics featuring White Hat]]
[[Category:Comics featuring Megan]]
[[Category:Comics featuring Cueball]]
[[Category:LOTR]]
[[Category:Language]]

1218: Doors of Durin

2023-03-11T09:07:57Z

Linneris: /* Explanation */

{{comic
| number = 1218
| date = May 29, 2013
| title = Doors of Durin
| image = doors of durin.png
| titletext = If we get the doors open and plug up the dam on the Sirannon so the water rises a little, the pool will start draining into Moria. How do you think the Watcher would fare against a drenched Balrog?
}}

==Explanation==
The comic is based on the ''{{w|Lord of the Rings}}'', specifically a scene from ''{{w|The Lord of the Rings: The Fellowship of the Ring}}'', where the eponymous fellowship is trapped outside the door to the {{w|Moria (Middle-earth)|Mines of Moria}}. There's a spoken password to open the doors, an Elvish inscription on them provides a clue: "Speak friend, and enter". The party leader ({{w|Gandalf}}) initially interprets this to mean that a friend could speak the password and enter. Only after many unsuccessful efforts does Gandalf realize it is actually a very simple riddle: The password is the Elvish word for "friend" ("mellon"), and the inscription should in fact be interpreted as "Speak [out loud the word] ''mellon'' [(the Elvish word for ''friend'')], and [you will be able to] enter". See the Wikipedia article {{w|Use–mention distinction}}.

In this comic, Cueball, White Hat, and Megan reenact the scene, with Cueball taking the role of Gandalf. The doors apparently open off-panel when the password is spoken. White Hat then wonders aloud what the Elvish word for "frenemy" is, and Cueball postulates "mellogoth". This is a {{w|portmanteau}} of "mellon" and "coth", much like how "frenemy" is a portmanteau of "friend" and "enemy". The {{w|Sindarin}} word-root ''coth'', in its {{w|Lenition|lenited}} form ''goth'', is best known as part of the name of {{w|Morgoth}} (literally, "Black Enemy") of the ''{{w|Silmarillion}}''. The doors apparently immediately slam shut the moment Cueball says ''mellogoth''. It is unclear whether this is because the opposite of the password has been spoken, or because the doors take offense to the word/concept ''frenemy'', of which xkcd has previously made fun in [[919: Tween Bromance]].

According to Fiona Jallings's textbook ''A Fan's Guide to Neo-Sindarin'', a more correct compound word formed from ''mellon + coth'' would be ''mellochoth'', as ''-n'' + ''c-'' would cause nasal mutation at the word boundary.

The title text ponders what would occur if the Sirannon, a stream running adjacent to the path leading to the doors, were to be completely blocked with the doors left open. The already partially blocked Sirannon had formed a pool before the doors; which contained some sort of monstrous horror from the depths of the Earth, referred to as the {{w|Watcher in the Water}}. Randall seems to think that the pond draining into the mines would connect the Watcher with another horror within: the {{w|Balrog}} (a high-level servant of Morgoth) living within the depths of the mines. Balrogs are primarily creatures of fire and shadow, so having a bunch of water dumped on it is unlikely to please it but may weaken it. He then goes on to wonder about the outcome of a battle between the two monsters.

==Transcript==
:[White Hat, Megan, and Cueball stand. Megan has her finger up.]
:Megan: I've got it!
:Megan: What's the elvish word for friend?
:Cueball: ''Mellon.''

:[The trio stand. A off-panel door opens.]
:''RUMBLE''

:[White Hat has his palm out, while Cueball has his palm on his chin.]
:White Hat: So what's the elvish word for "frenemy"?
:Cueball: ''...Mellogoth?''
:'''SLAM!!'''

{{comic discussion}}
[[Category:Comics featuring White Hat]]
[[Category:Comics featuring Megan]]
[[Category:Comics featuring Cueball]]
[[Category:LOTR]]
[[Category:Language]]

1218: Doors of Durin

2023-02-20T09:23:34Z

Linneris:

{{comic
| number = 1218
| date = May 29, 2013
| title = Doors of Durin
| image = doors of durin.png
| titletext = If we get the doors open and plug up the dam on the Sirannon so the water rises a little, the pool will start draining into Moria. How do you think the Watcher would fare against a drenched Balrog?
}}

==Explanation==
The comic is based on the ''{{w|Lord of the Rings}}'', specifically a scene from ''{{w|The Lord of the Rings: The Fellowship of the Ring}}'', where the eponymous fellowship is trapped outside the door to the {{w|Moria (Middle-earth)|Mines of Moria}}. There's a spoken password to open the doors, an Elvish inscription on them provides a clue: "Speak friend, and enter". The party leader ({{w|Gandalf}}) initially interprets this to mean that a friend could speak the password and enter. Only after many unsuccessful efforts does Gandalf realize it is actually a very simple riddle: The password is the Elvish word for "friend" ("mellon"), and the inscription should in fact be interpreted as "Speak [out loud the word] ''mellon'' [(the Elvish word for ''friend'')], and [you will be able to] enter". See the Wikipedia article {{w|Use–mention distinction}}.

In this comic, Cueball, White Hat, and Megan reenact the scene, with Cueball taking the role of Gandalf. The doors apparently open off-panel when the password is spoken. White Hat then wonders aloud what the Elvish word for "frenemy" is, and Cueball postulates "mellogoth". This is a {{w|portmanteau}} of "mellon" and "goth", much like how "frenemy" is a portmanteau of "friend" and "enemy". The {{w|Sindarin}} word-root ''coth'', in its {{w|Lenition|lenited}} form ''goth'', is best known as part of the name of {{w|Morgoth}} (literally, "Black Enemy") of the ''{{w|Silmarillion}}''. The doors apparently immediately slam shut the moment Cueball says ''mellogoth''. It is unclear whether this is because the opposite of the password has been spoken, or because the doors take offense to the word/concept ''frenemy'', of which xkcd has previously made fun in [[919: Tween Bromance]].

The title text ponders what would occur if the Sirannon, a stream running adjacent to the path leading to the doors, were to be completely blocked with the doors left open. The already partially blocked Sirannon had formed a pool before the doors; which contained some sort of monstrous horror from the depths of the Earth, referred to as the {{w|Watcher in the Water}}. Randall seems to think that the pond draining into the mines would connect the Watcher with another horror within: the {{w|Balrog}} (a high-level servant of Morgoth) living within the depths of the mines. Balrogs are primarily creatures of fire and shadow, so having a bunch of water dumped on it is unlikely to please it but may weaken it. He then goes on to wonder about the outcome of a battle between the two monsters.

==Transcript==
:[White Hat, Megan, and Cueball stand. Megan has her finger up.]
:Megan: I've got it!
:Megan: What's the elvish word for friend?
:Cueball: ''Mellon.''

:[The trio stand. A off-panel door opens.]
:''RUMBLE''

:[White Hat has his palm out, while Cueball has his palm on his chin.]
:White Hat: So what's the elvish word for "frenemy"?
:Cueball: ''...Mellogoth?''
:'''SLAM!!'''

{{comic discussion}}
[[Category:Comics featuring White Hat]]
[[Category:Comics featuring Megan]]
[[Category:Comics featuring Cueball]]
[[Category:LOTR]]
[[Category:Language]]

2587: For the Sake of Simplicity

2022-03-01T06:56:00Z

Linneris:

{{comic
| number = 2587
| date = February 28, 2022
| title = For the Sake of Simplicity
| image = for_the_sake_of_simplicity.png
| titletext = For the sake of simplicity, gardeners are assumed to move through Euclidean space--neglecting the distortion from general relativity--unless they are in the vicinity of a Schwarzschild Orchid.
}}

==Explanation==

{{incomplete|Created, '''for the sake of simplicity''', by a SCHWARZSCHILD ORCHID - Please change this comment when editing this page. Do NOT delete this tag too soon.}}
[[Cueball]] appears to be explaining a gardening-related board game to [[Ponytail]] and [[White Hat]]. The game mechanics being employed are ridiculously overcomplicated for a game that seems to be about gardening, but Cueball insists that they have been chosen "for the sake of simplicity", and could have been ''even more'' complicated.

Features of the game include:
* Tokens to represent competing gardeners
* Plots for the players to garden, both home plots and secondary garden plots
* Mechanics to assign speed of transit between plots
* Gardener attributes, including height and cardio scores
* Hereditary trees to determine gardener attributes according to the gardener's ancestry - {{w|matrilineally}} refers to inheritance from the mother's side
* Euclidean and non-euclidean space, in accordance with the theory of {{w|special relativity}}.
* The presence of particular species of flora that can warp {{w|space-time}}

The title text mentions that the space is assumed to be {{w|Euclidean_Geometry|Euclidean}}, which is what most people would assume since it corresponds to our normal experience, so this is not something that normally needs to be explained. But then it says that this isn't true in the vicinity of a Schwarzchild Orchid. An {{w|orchid}} is a type of flowering plant, which is relevant to a gardening game, but Schwarzchild refers to {{w|Karl Schwarzchild}}, a physicist who solved equations related to {{w|general relativity}}; the {{w|Schwarzschild radius}} is the boundary of a {{w|black hole}}, and spacetime is severely warped in this vicinity, so Euclidean geometry and {{w|Newton's Laws}} don't describe motion here well.

When the comic was first published, the third paragraph said "stamina scores". This was later changed to "cardio scores".

==Transcript==
{{incomplete transcript|Do NOT delete this tag too soon.}}
:[Cueball is standing beside Ponytail and White Hat, who are sitting at a table with a board game.]

:Cueball: You may assign each gardener's token to a secondary garden plot within a 30-minute walk from their home plot.
:Cueball: For the sake of simplicity, each gardener is assumed to have a constant walking speed proportional to their height and cardio score.
:Cueball: For the sake of simplicity, cardio scores are inherited matrilineally...

:[Caption below the panel:]
:If you're worried that you're making something too complicated, just add "for the sake of simplicity" now and then as a reminder that it could always be worse.

{{comic discussion}}
[[Category:Comics featuring Cueball]]
[[Category:Comics featuring Ponytail]]
[[Category:Comics featuring White Hat]]
[[Category:Board games]]
[[Category:Language]]

File:for the sake of simplicity.png

2022-03-01T06:54:50Z

Linneris: Linneris uploaded a new version of File:for the sake of simplicity.png

== Summary ==
Large size can be found at https://imgs.xkcd.com/comics/for_the_sake_of_simplicity_2x.png

== Licensing ==
{{XKCD file}}

2547: Siren

2021-11-27T07:24:50Z

Linneris: /* Transcript */ fix typo

{{comic
| number = 2547
| date = November 26, 2021
| title = Siren
| image = siren.png
| titletext = Directions from CITY OF TROY to ITHACA / Total time: 10y 54d 14h 25m / Warning: Route crosses an international border / route includes capture by the goddess Calypso / route includes a ferry
}}

==Explanation==
{{incomplete|Created by a BROKEN GPS - Please change this comment when editing this page. Do NOT delete this tag too soon.}}

==Transcript==
{{incomplete transcript|Do NOT delete this tag too soon.}}

:[Circe is speaking to Odysseus.]
:Circe: Remember, Odysseus:
:Circe: As you pass the rocks you will hear a woman calling out to you, urging you to stray from your path, but plug your ears and hold your course, for her beguiling lies will draw you to a watery grave.
:Circe: I don't know ''why'' they can't just fix it. I keep filing error reports.

:[Caption below the panel:]
:Circe was actually just telling Odysseus to ignore his GPS.

{{comic discussion}}

2463: Astrophotography

2021-05-15T07:04:48Z

Linneris: Arrows can't be fired, since they're not firearm projectiles

{{comic
| number = 2463
| date = May 15, 2021
| title = Astrophotography
| image = astrophotography.png
| titletext = [One hill over, a competing astrophotographer does a backflip over a commercial airliner while throwing a tray of plastic space stations into the air, through which a falcon swoops to 'grab' the real one.]
}}

==Explanation==
{{incomplete|Created by a BACKFLIPPING ASTROPHOTOGRAPHER. Title text needs to be outlined as the main explanation. Do NOT delete this tag too soon.}}
Astrophotographers like to take photos of things transiting the {{w|Sun}}. Typical things include planes, the {{w|International Space Station}} (ISS), and the {{w|Moon}} ({{w|Solar eclipses}}).

During the [[:Category:Total Solar Eclipse 2017|Total Solar Eclipse 2017]] visible across US it was possible to see the ISS pass in front of the Sun during a partial part of the Eclipse (from a site that was later in the total Eclipse zone.) This was [https://www.smartereveryday.com/eclipse photographed] and filmed by Destin from Smarter Every Day and can be seen in his video [https://www.youtube.com/watch?v=lepQoU4oek4&feature=youtu.be Space Station Transiting 2017 ECLIPSE]. (Go to the time of the flyby of the ISS in the video [https://youtu.be/lepQoU4oek4?t=209 here]).

The practice of "one-upmanship" refers to the practice of achieving something superior to what another has achieved, or "getting one up on" them. The caption claims that the photo shown in the comic is the result of a continuous string of one-upmanship among astrophotographers in a community, each striving to one-up the other.

In this comic there seems to be an abundance of things:
* The sun is setting or rising from behind a hill.
* The ISS can be seen transiting in the upper center.
* There is an ongoing {{w|partial solar eclipse}} so the view of the Sun is partially obscured by the Moon in the upper right quadrant. Although the Sun is much larger than the Moon, the Moon is able to block the Sun's light from reaching {{w|Earth}} (which happens during a {{w|partial solar eclipse|Total Solar Eclipse}}) because it so much closer to the Earth that they have the same apparent size when seen from the Earth.
** These two things are what Destin managed. But this photographer did several one up on him.
* [[Megan]] is standing slightly below the peak of a hill and seems to be juggling, with five balls, which are also in front of the sun.
* [[Cueball]] is standing at the peak of the hill, shooting an arrow from a bow, one arrow has pierced what at first appears to be one of the juggling balls, but may be a {{w|Transit of Venus}}.
* A simultaneous Eclipse and Transit of Venus is actually expected in the future, but not until April 5, 15232 (13211 years after the publishing of this comic). It would though likely be easier to make the arrow "hit" Venus than one of the joggled balls, as the planets position is constant at the time the photo is taken. The other four balls are too large that any of them could represent Mercury, the only other planet that can transit the Sun, when seen from Earth. But Megan has been careful to make one ball go so much higher than the middle two, that it seems to fit that Venus has been shot out from between them.
* Two airplanes flying above them are pulling signs with the words "nice" and "shot" (which could refer to both the archer and the photographer). The signs will have to be made with see through holes through the canvas letting sun through. As there is an O it cannot just be holes in the canvas!

Taking the picture required precisely scheduling and arranging the relative positions of several of the various subjects (and photographer), to coincide with the predictable but rare conjunctions of the rest of the scene, as well as special equipment:
* All this had to be timed very very precise as the [https://youtu.be/lepQoU4oek4?t=209 flyby of the ISS only takes a second].
* A solar filter must be used to photograph the sun without overexposing the image or even damaging equipment.
* The photograph must be taken during a partial solar eclipse. These only happen a few times per year and are only visible in part of the world.
* Related to the last point, a nearby person appears larger than the moon. It is possible to photograph the silhouette of a person or a cityscape in front of a full moon, making the moon look comparatively larger or smaller by adjusting the distance to the closer subject, and then the lenses used by the photographer to make them both fill just the right amount of the frame. The photographer needed to carefully choose their position relative to the subjects to make this happen.
* The exposure time of the photograph had to be short enough to capture clear silhouettes of the ISS, the juggling balls and the arrow while these were in the air.
* The mountain had to be in a location that would happen to see the ISS passing in front of the sun at the same time as the sun was rising from behind it.
* The subjects had to achieve a moment in which four juggling balls were in the air and an arrow had pierced the point where Venus where, while sideways relative to the sun's light, which was still near normal intensity and could have made the task harder.
* The planes also needed to be flying in the correct directions for the text of the signs to be visible, and very precise timing for them to be in the correct position to read Nice as coming before Shot just as the ISS passes by.

The title text describes a similarly outlandish photo.

==Transcript==
{{incomplete transcript|Do NOT delete this tag too soon.}}

:[Cueball and Megan stand on a hill with the sun behind them. Cueball is at the top-left of the hill, holding a bow in his left arm, which has been recently shot, with the arrow to right. Megan is at the bottom-right of the hill, juggling some balls. There are two planes going in opposite directions with banners on them. Above the planes is the ISS. All these items are silhouetted against the sun partially eclipsed by the moon in the upper right.]

:[Banners]: Nice Shot

:[Caption beneath the panel]:
:Our astrophotography community's one-upmanship is getting out of hand.

==Trivia==
Randall has commented on in comics ([[1855:_Telephoto]], [[1719:_Superzoom]]) and the ''How To'' chapter "How to take a selfie".

{{comic discussion}}

[[Category:Comics with color]]
[[Category:Space]]

2274: Stargazing 3

2020-02-29T02:48:20Z

Linneris: /* Explanation */

{{comic
| number = 2274
| date = February 28, 2020
| title = Stargazing 3
| image = stargazing_3.png
| titletext = If we can destroy enough of the lights in our region, we may see more comets, but that's a risk we'll have to take.
}}

==Explanation==
{{incomplete|Created by a TERRIFIED LAMP. The explanation, for the most part, doesn't exist. Do NOT delete this tag too soon.}}

This is the third in the Stargazing series. The first [[1644: Stargazing]] appeared four years ago and the second [[2017: Stargazing 2]] one and a half years ago.

{{w|Vega}} is a star in the constellation of {{w|Lyra}}. It does indeed have {{w|Magnitude (astronomy)|magnitude}} 0.03 and is the brightest star mentioned in this comic. The phrase <q>It's the brightest star I'm currently talking about</q> is an example of the technically correct but not at all useful information that is typical of the Stargazing series. Vega is only the {{w|List of brightest stars|5th brightest star}} (outside of the Sun), as {{w|Sirius}} is the brightest visible star.

{{w|Polaris}} is indeed the star over the North Pole, and is commonly called the North Star or the Pole Star. It has been used for navigation, as it appears fixed in the night sky. It is the brightest star in the constellation Ursa Minor, but there are about fifty other stars that are as bright as it is (magnitude 2), so it's not really remarkable, as the host says. In fact, it isn't even always the pole star, as Earth's axis precesses in a 26,000 year cycle.

{{w|Comets}} are small rock and ice particles. Many comets have usually highly elliptical orbits around the sun and so they are seen "every few decades". Yelling at comets has proved to be an ineffective way to make them go away.{{Citation needed}}

{{w|Light pollution}} is indeed a problem with stargazing. Light pollution is the presence of artificial light in the night sky, which makes it very difficult to see stars. Stargazing in remote locations is remarkably different than in populated cities. Light pollution was previously discussed in [[2121: Light Pollution]].

Light pollution does not actually make the "sky go away", but it does affect how humans can see stars or other astronomical features in the sky. An "[http://www.blandinequatorialplatforms.com/ astronomy crossbow]" is a tool used to measure the angular distance between stars. They cannot shoot real {{w|crossbow bolt}}s, but any type of crossbow or other weapon could be used to destroy lights and "preserve" the sky. The title text mentions that destroying lights could allow for the viewing of comets, which is true. It is unclear why the host dislikes comets so much.

==Transcript==
{{incomplete transcript|Do NOT delete this tag too soon.}}

:[In a dark panel, a TV host stands in front of a group of people: Science Girl, Ponytail, and Cueball; the panel is inverse-colored, i.e. white text and drawings on black]
:Host: Welcome back to Stargazing.
:Host: There are no new stars since last time, but you came back for some reason.

:[Zoomed out on the same scene, the host is now with Science Girl, Ponytail, Cueball, Megan, and White Hat. The host is pointing upwards with her left hand.]
:Host: That star is Vega. At magnitude 0.03, it's the brightest star I'm currently talking about.
:Host: That one is Polaris. It's over the North Pole, which is all it has going for it.

:[A frame-less white panel, zoomed in on the host, who is now pointing upwards with her right hand.]
:Host: That's a comet. Some of them come back every few decades, no matter how much I yell at them.
:Host: But stargazing isn't all fun yelling. We face a problem even worse than comets: light pollution.

:[Back to a dark panel, the host now has a big bag of crossbows. The bag has a logo of a crossbow with stars around it. She has taken out one of them and is holding it in her right hand.]
:Host: The sky is going away because people keep shining lights at it. The new LEDs are even worse - they're too blue, and you can't turn them off by throwing rocks at them like with the old ones.
:Host: Luckily, I brought these astronomy crossbows.
:Host: Take one, then let's fan out and look for lamps.

{{comic discussion}}

[[Category:Comics with inverted brightness]]
[[Category:Astronomy]]
[[Category:Stargazing]]
[[Category:Comics featuring Cueball]]
[[Category:Comics featuring Ponytail]]
[[Category:Comics featuring White Hat]]
[[Category:Comics featuring Megan]]
[[Category:Comics featuring Science Girl]]

Category:Bad Map Projections

2020-01-17T12:04:33Z

Linneris:

This series began in January 2017 and has at least two installments as of February 2017.

[[Randall]] has been into [[:Category:Maps|maps]] for a long time on xkcd. Especially he focused on {{w|map projections}}, which are various ways to show the Earth on a flat surface, as in [[977: Map Projections]]. This is not possible to do without distortion because the Earth is not flat.

A long time after releasing that comic, which did not say the projections were bad, but clearly showed how different Earth's countries looks in different maps, he continues the list of projections (well, with Bad Map Projections he made himself) in what turned out to be a series, of three comics so far.

However, these projections are not real projections, and they are all named "Bad Map Projection: ''(Name)''".
They even get a number, which if taken seriously would mean there are 355 unreleased bad map projections at least. So far they have the following numbers, listed in number order rather than release order:
:<nowiki>#79</nowiki>: [[1799: Bad Map Projection: Time Zones|Time Zones]]
:<nowiki>#107</nowiki>: [[1784: Bad Map Projection: Liquid Resize|The Liquid Resize]]
:<nowiki>#358</nowiki>: [[1784: Bad Map Projection: Liquid Resize|South America]]

This may give promise of several more bad projections. So far, the first two have been released using a similar six color scheme, like a political map with each country in a different color than its closest neighbors.

[[Category:Maps]]
[[Category:Comic series]]

Category:Bad Map Projections

2020-01-17T12:03:54Z

Linneris:

This series began in January 2017 and has at least two installments as of February 2017.

[[Randall]] has been into [[:Category:Maps|maps]] for a long time on xkcd. Especially he focused on {{w|map projections}}, which are various ways to show the Earth on a flat surface, as in [[977: Map Projections]]. This is not possible to do without distortion because the Earth is not flat.

A long time after releasing that comic, which did not say the projections were bad, but clearly showed how different Earth's countries looks in different maps, he continues the list of projections (well, with Bad Map Projections he made himself) in what turned out to be a series, of three comics so far.

However, these projections are not real projections, and they are all named "Bad Map Projection: ''(Name)''".
They even get a number, which if taken seriously would mean there are 355 unreleased bad map projections at least. So far they have the following numbers, listed in number order rather than release order:
:<nowiki>#79</nowiki>: [[1799: Bad Map Projection: Time Zones|Time Zones]]
:<nowiki>#107</nowiki>: [[1784: Bad Map Projection: Liquid Resize|The Liquid Resize]]
:<nowiki>#358</nowiki>: [[1784: Bad Map Projection: Liquid Resize|South America]]

This may give promise of several more bad projections. So far, both have been released using a similar six color scheme, like a political map with each country in a different color than its closest neighbors.

[[Category:Maps]]
[[Category:Comic series]]

Talk:2169: Predictive Models

2019-06-30T07:14:31Z

Linneris:

If you click on the comic, it opens a page with error 404. Looking at the URL, it says "At the July 28th meeting", which I assume is the prediction result to the title text suggesting that they will be 1 month late. [[Special:Contributions/162.158.106.174|162.158.106.174]] 17:13, 28 June 2019 (UTC)

: Fixsed it, my years of mediawiki knowledge have finally come to use. [[User:Iggyvolz|Iggyvolz]] ([[User talk:Iggyvolz|talk]])

In the HTML tag for the link (the <a> tag surrounding the comic image) after the link it says "cancel the meeting! our cover is blown" [[User:Everlastingwonder|Everlastingwonder]] ([[User talk:Everlastingwonder|talk]]) 17:21, 28 June 2019 (UTC)

In the [https://m.xkcd.com/2169/ mobile version], you can read «See also: [AT THE JULY 28TH MEETING][tab] "Cancel the meeting! Our cover is blown."» It leads to a 404, like the other examples in the comments here. [[Special:Contributions/172.69.44.136|172.69.44.136]] 17:31, 28 June 2019 (UTC)

This looks a whole lot like Gmail's [https://ai.googleblog.com/2018/05/smart-compose-using-neural-networks-to.html Smart Compose] [[Special:Contributions/172.68.206.76|172.68.206.76]]

Today GMail actually predicted the beginning of my mail correctly. I typed literally zero characters and it already knew how to continue. In the future, we won't even have to upload our brains to a computer, a backup will already be available there automatically. [[User:Fabian42|Fabian42]] ([[User talk:Fabian42|talk]]) 21:32, 28 June 2019 (UTC)

Not a backup, a simulation. [[Special:Contributions/108.162.219.184|108.162.219.184]] 04:46, 29 June 2019 (UTC)

On my Mac the title text only shows "WE WILL ARREST THE REVOLUTION MEMBERS" while on my iPad (where you long press to see title texts) long pressing only shows the link. Weird. Also someone remind me to check the link again on July 28. [[User:Herobrine|Herobrine]] ([[User talk:Herobrine|talk]]) 13:10, 29 June 2019 (UTC)

: On my Ubuntu system, both Firefox and Chrome display "WE WILL ARREST THE REVOLUTION MEMBERS" as the title text and "<nowiki>https://xkcd.com/[AT THE JULY 28TH MEETING][tab]</nowiki>" as the link target, which is also what's in the HTML source. Additionally, the HTML source is malformed, with quotes inside quotes in the href attribute. - [[User:Linneris|Linneris]] ([[User talk:Linneris|talk]]) 14:37, 29 June 2019 (UTC)
::Malformed. Precisely! I think there was a glitch while the comic was uploaded, which used the title text as a link in addition to as the title text. It didn't include the last part due to the quotes. It will be either fixed or legitimate, or at least make the href a little nicer. [[User:Jacky720|That's right, Jacky720 just signed this]] ([[User talk:Jacky720|talk]] | [[Special:Contributions/Jacky720|contribs]]) 21:24, 29 June 2019 (UTC)
:::Actually... Looking at the comic again (for the first time on my PC), I would like to rethink that. I think this is Randall's method of demonstrating the [tab]; clicking and looking at the URL. [EDIT] Man, the more I think, the weirder it gets. Maybe it's about how sometimes you can find the information on the client side in the code where it should be hidden? I don't know anymore. [[User:Jacky720|That's right, Jacky720 just signed this]] ([[User talk:Jacky720|talk]] | [[Special:Contributions/Jacky720|contribs]]) 21:27, 29 June 2019 (UTC)
::When you look at the source of [https://xkcd.com/2169/%5BAT%20THE%20JULY%2028TH%20MEETING%5D%5Btab%5D that 404 page], you can see six HTML comments with the content ''a padding to disable MSIE and Chrome friendly error page''. This is to prevent MSIE and Chrome from displaying "helpful" proprietary error pages. If you change the link in the slightest, you will also get a 404 page, but without these comments. I assume that either this was a glitch (intended or unintended) and this particular 404 page was modified so that everyone can see that the authors are aware of it, *or* it's a hint pointing to somewhere else. A rabbit hole maybe? I would like the latter to be true, but I haven't found anything.--[[Special:Contributions/162.158.90.168|162.158.90.168]] 22:42, 29 June 2019 (UTC)
:::Not for me. I see the same tiny Nginx 404 page with the same HTML source as any other 404 page due to invalid link on xkcd.com. - [[User:Linneris|Linneris]] ([[User talk:Linneris|talk]]) 07:14, 30 June 2019 (UTC)

This reminds me of that time where via data analytics on things like shopping habits, [https://www.nytimes.com/2012/02/19/magazine/shopping-habits.html Target figured out that a teen girl was pregnant before her father did]. [[User:Ahiijny|Ahiijny]] ([[User talk:Ahiijny|talk]]) 06:42, 30 June 2019 (UTC)

Talk:2169: Predictive Models

2019-06-29T14:37:35Z

Linneris: