explain xkcd - User contributions [en]

explain xkcd:Community portal/Admin requests

2024-08-21T14:37:01Z

172.70.162.17: /* Comic # 2974 explanation */

<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)}}
|}
Click "expand" to see list of admins. 
<div class="mw-collapsible mw-collapsed">
'''List of Admins:''' 
{{Special:ListUsers/sysop}}
</div>

= Discussion Area =
</noinclude>

== Racism on Main Page ==
There are some extremely racist comments on the main page. See https://www.explainxkcd.com/wiki/index.php/Main_Page. Please remove immediately!
Can admins please delete the racist comments on the main page?
The user who wrote these racist comments has the IP address of 162.158.146.163. Please block!

Edit: Resolved. Thanks :)

== 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)

Bumping this since it happened again. —megan [[user talk:megan|talk]] [[special:contribs/megan|contribs]] 07:54, 22 July 2024 (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)

:I didn't want to create yet another discussion topic for the same issue, so I put it here. Could someone create my user page as well? Thanks. [[User:Obwankenobi|Obwankenobi]] ([[User talk:Obwankenobi|talk]]) 20:14, 9 February 2024 (UTC)

=== Same here. ===

I'm almost glad I'm not the only one with this issue with the user and talk page. I was kind of asking myself what I've done not to be permitted a user page, you know. I remember trying to create one once upon a time, which included a link to my own webcomic. It didn't save for some reason and after that I wasn't permitted to create a user page. So if a link to your own hobbyist scribblings is considered illicit advertising, please let me know in order to avoid misunderstandings. [[User:PaulEberhardt|PaulEberhardt]] ([[User talk:PaulEberhardt|talk]]) 14:54, 16 June 2024 (UTC)
:With a dozen edits (up to and including the above), and a decent amount of time, I'd have expected you to be over the nominal threshold to give you the right to create your pages.
:(I'm not entirely sure what the criteria are, off the top of my head, though I know it's been discussed elsewhere. And if I were configuring it, I'd not put too much weight on "the number of edits" or "the net amount of added bytes"/whatever, as it could encourage pointless editing-for-the-sake-of-editing, rather than relying upon 'time served' to weed out those who are in a rush to create havoc... but there's arguments to make it a combination of criteria. And it's not up to me, anyway..!)
:Firstly, have you tried again recently, like right now? If you have, and it still won't 'take', or even let you get that far, then there's plenty of longer-term/higher-intensity users that ''might'' look kindly upon your participation and answer your plight. But do try again.
:And I'd say that (within reason, like avoid linking to anywhere dodgy or uploading masses of total junk) you're free to make your User page into anything you want. I'm pretty sure you aren't going to want to cross any 'line' (official or otherwise), so all the best. And bumping your request. (Also slightly sub-headering, because it is rather a reply to the above header. I might just have added an indented reply straight off, but... again... it's not really for the likes of me to say, so I'm only tweaking it, not merging it in.) [[Special:Contributions/162.158.38.71|162.158.38.71]] 20:57, 16 June 2024 (UTC)

::Cheers for the info, and for the tweak! I didn't know how to make sub-headings (yes, I'm that wiki-illiterate - lol), or I'd have done it myself. Possibly I'm just not over this mysterious threshold, being a somewhat irregular visitor with a slight penchant for bad puns, but I certainly do intend to make contributions that actually contribute to something whenever I can (btw. my own webcomic, actually two webcomics by now, are both All Ages and hosted on a well-known webcomic community site, so it's certainly nothing dodgy from my point of view). I don't want to make a fuss about it all, either. If nothing works after a year or so, I'll just start over with a new account or something and see what happens. [[User:PaulEberhardt|PaulEberhardt]] ([[User talk:PaulEberhardt|talk]]) 18:24, 22 June 2024 (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 of every page except the main page 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)

This keeps happening with other comics too [[User:Moderator|Moderator]] ([[User talk:Moderator|talk]]) 21:44, 18 April 2024 (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)
::Deleting the vandal's ignorant... let's call it "self-defense" to be generous. What exactly is supposed to be "not racist" about a derogatory term for black men - which features prominently in the edit summaries is left as an exercise for the reader. [[Special:Contributions/162.158.146.181|162.158.146.181]] 18:35, 2 January 2024 (UTC)
:Preferably also rev-del the revisions and summaries. [[Special:Contributions/172.69.71.13|172.69.71.13]] 18:40, 2 January 2024 (UTC)

== XKCD Browser ==

I made a [https://github.com/kristianbenoit/XKCD XKCD browser] in python with pygame and think it could be useful to others. The idea was to popup a comic the morning after it was published from a crontab. There could be a hotkey to point to todays discussion on explainxkcd. I wonder where/how would be the place to advertise it ? [[User:Kbenoit|Kbenoit]] ([[User talk:Kbenoit|talk]]) 15:36-40, 20 February 2024 (UTC)
:Here's a good start. Perhaps on the comic discussions for similar things ([https://uni.xkcd.com/ unixkcd], etc). As and when you get a User page here then you can perhaps expound on it there (assuning you aren't leaving the explanation to the github webspace. [[Special:Contributions/172.71.178.172|172.71.178.172]] 16:01, 20 February 2024 (UTC)
::You (other IP, in the 160s.*) meant well, but [https://www.explainxkcd.com/wiki/index.php?title=explain_xkcd:Community_portal/Admin_requests&diff=prev&oldid=335412 the person who linked my text] was not me and that link isn't directly useful for K's purpose. Maybe indeed I should have pointed at [[UniXKCD]], or [[Talk:UniXKCD]], but I wasn't sure that was even the best place on here. Look around the [[:Category:Interactive comics]], and/or ones featuring browsers lrominently, maybe.
::I repeat that you (Kristian, with our help at bumping the contribution here) have already now made it known/knowable, at least to those who browse this site widely, but once you get a Userspace page you can perhaps do a little bit more in your own free space and also push people there through subtle pointers or signature-links in further on-context contributions. This isn't really a place for random advertising, but definitely contextual links to offsite xkcd 'fandom' is not something I'd personally have issues with (certainly compared to some other things that might get snuck on here). [[Special:Contributions/172.70.91.62|172.70.91.62]] 13:43, 21 February 2024 (UTC)

== Vandalism-related Ban Request ==

Hey, if any of the admins see this, can you please ban Jupitale? They’ve made 11 vandalism-related edits, within the time frame of about 21 hours. Even though they haven’t ben active since February 28, I feel like it’s better to err on the more cautious side. Thanks! ^_^ [[User:42.book.addict|42.book.addict]] ([[User talk:42.book.addict|talk]]) 01:09, 5 March 2024 (UTC)
:It'd be even more cautious not to [https://www.explainxkcd.com/wiki/index.php?title=User:Ash123&action=history create userpages] for a user that [https://www.explainxkcd.com/wiki/index.php?title=Talk:1211:_Birds_and_Dinosaurs&diff=prev&oldid=336532 was only here to spam us].. (Note to admins: add Ash123 to that todo list, if we're calling them out, and I know I've reverted some other single-spamming usernames recently.) But you just know that a ban for anyone like 'Jupitale' (as much as they'd deserve it) is going to be of no actual consequence to them.
:And hold off on all those other userpages, 42. It's not your job, and you might not be right about the usefulness of the ones you're (seemingly randomly) creating. Without even being asked. [[Special:Contributions/172.69.194.217|172.69.194.217]] 01:55, 5 March 2024 (UTC)

== Countdown ==

Can we please have an xkcd-like countdown on the top of every page for how many days left till the next april fool's comic? (Eg. today it would say "7 days untill the next april fool's comic!") [[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)] 10:26, 25 March 2024 (UTC)
:What certainty is there that there'll be one? If/when get the April Fool, or past it, do we reset for the next, or start counting down to the next hypothetical New Year, Christmas, Halloween comic or "Two/Seven/Ten Years" reanniversary? We need to know a few more details to the idea.
:And I presume you meant "a countdown in a suitably xkcx-ish manner, as there have been countdowns for books/etc but not a consistent approach, just some wide ranging but apt creative teasers [[Special:Contributions/172.69.194.225|172.69.194.225]] 11:32, 25 March 2024 (UTC)
:Shhhh, it's supposed to be a surprise! I mean, in my opinion, I'd rather want to see people caught off guard in the comments rather than warn them. [[User:Asdf|Asdf]] ([[User talk:Asdf|talk]]) 12:35, 25 March 2024 (UTC)

== Unblock request ==

Hello! I tried to sign up for an account a couple years ago, but I happened to sign up during a major vandal attack, and an admin blocked me based on a mistaken accusation of vandalism and sockpuppetry. I had used the account [[User:Danny E. Corchado]], then I used [[User:Danny Corchado]] to attempt to appeal my block shortly afterwards; both accounts are now blocked. I no longer have the password to the former, but I can log in to the latter account. Can someone please unblock [[User:Danny Corchado]]? If someone creates [[User talk:Danny Corchado]], I should be able to edit that page to prove I do control the account. [[Special:Contributions/172.71.151.21|172.71.151.21]] 02:26, 1 April 2024 (UTC)
:ill give you the benefit of doubt-done and done [[User:42.book.addict|42.book.addict]] ([[User talk:42.book.addict|talk]]) 04:19, 1 April 2024 (UTC)
::Really? You actually think this could work like that? Both(/'both'?) of you? I wondered why you (42) randomly created that user's page from (from 'your' perspective) the mists of time. Which doesn't help unblock anyone, there's not even any logic in that request. (Once unblocked, whoever controls the account can prove that ''they control the account''. But where does that lead anyone?)
::And why would you associate ''in any way'' with an account 'of no account' that was linked with vandalism? You can only be judged by your actions, as you can choose any name (within reason) that you want. "Mr Corchado" still has uncounted options left if he absolutely must post, in all good faith, as 'Dan Corchado' or similar. You've been here long enough (longer than your current username) to know all this. Sheesh... [[Special:Contributions/172.70.85.77|172.70.85.77]] 11:03, 1 April 2024 (UTC)

== Adding images from 2916: Machine ==

I created most of the page for 2916: Machine, but do not have permissions to upload images to embed for each object/character, could someone either upload all the images I have linked on the page, or allow for me to upload the images? Thanks [[User:Claire Kholin|Claire Kholin]] ([[User talk:Claire Kholin|talk]]) 18:56, 6 April 2024 (UTC)

== Main Page Deletion ==

Hi. When I logged in today, I saw that the Main Page was deleted just 2 minutes before by Mark Hurd. If I remember correctly, he was confirmed to have passed on Wikipedia, and other Admins were talking about de-sysopping him. Can someone please explain this? Thanks, [[User:42.book.addict|42.book.addict]] ([[User talk:42.book.addict|talk]]) 15:44, 11 April 2024 (UTC)
:After Kynde restored the Main Page, he didn't protect it. Could someone please protect it so that trolls and vandals can't mess with it, like last time? Thanks. [[User:42.book.addict|42.book.addict]] ([[User talk:42.book.addict|talk]]) 00:18, 13 April 2024 (UTC)

== "Interesting" Account Creations ==

Hi. So I was looking at the user creation log, and I noticed a suspicious number of accounts-at least 90% of them-are being created using a <Semi-generic first name> <semi-generic last name> <usally two or three numbers>. This would be kinda weird in the first place, however, almost none of the accounts are active. That and the fact that these accounts are being created no less than 10 minutes from each other made me think somethings a little weird. Maybe I'm just dumb. Just wanted to bring it to your attention in case this wasn't a normal thing.[[User:Apollo11|Apollo11]] ([[User talk:Apollo11|talk]]) 17:17, 15 April 2024 (UTC)
I looked a bit further, the exact same thing happened two months ago as well, but the names were random letters instead [[User:Apollo11|Apollo11]] ([[User talk:Apollo11|talk]]) 17:34, 15 April 2024 (UTC)
:It's been happening (in various forms) for years. Maybe a decade, if not more. For as long as I've been paying attention, certainly, which might well be that long.
:Without access to the whole admin logs, it seems to reflect the intention of 'bots to spam, spam and spam again, automatically, creating accounts they will use to do so but then hitting the actually rather effective anti-bot defenses, so they do absolutely nothing (well, maybe they're lucky every now and again, but practically insignificant successes, and IP-only spams seem to dominate, at maybe twice a week for who-knows-how-many wctual attempts).
:Amongst the current bunch randomly created names, I see a few that are clearly created around the word "Ingredients" (rather than a feedstock to create 'FirstnameLastname', which has long been the main default). I take it that each meta-pattern we see as indicative of a different bot-farmer's efforts, so this might have been started up for a particular spam-theme. Which maybe we'll get an idea of if it gets lucky. Though I'm in no hurry to find out such details. [[Special:Contributions/172.71.242.13|172.71.242.13]] 12:39, 16 April 2024 (UTC)
Awesome, glad that its under control then :) [[User:Apollo11|Apollo11]] ([[User talk:Apollo11|talk]]) 14:32, 16 April 2024 (UTC)
:Recently created a public-facing wiki and I can confirm these accounts are would-be spambots (they started spamming my wiki until I made it impossible to register an account without already having one). —Megan [[user talk:megan|talk]] [[special:contribs/megan|contribs]] 09:07, 16 July 2024 (UTC)
::Not to question your decision on how to do this, but idly wondering how many people who already have an account would want to register a new one, and why... RPing with alts actively encouraged, and nobody new joining in? Sounds interesting, but I feel I've misunderstood somehow. (And solving the problem however you want to is your perogative.) [[Special:Contributions/172.69.195.123|172.69.195.123]] 10:35, 16 July 2024 (UTC)
:::It's a small wiki mostly for me and my friends; I was silly and thought nothing could go wrong if I left account creation wide open since the wiki isn't linked from anywhere . I guess it must have been someone scanning the IPv4 address space. I don't need anyone registering anymore unless I make new acquaintances/friends, in which case I'll make an account for them. —Megan [[user talk:megan|talk]] [[special:contribs/megan|contribs]] 14:41, 16 July 2024 (UTC)

==Block request==

Can someone block 42.book.addict on my profile and vice versa? We're having issues and I wanna stop with them. 19:34, 29 April 2024 (UTC)

== Problem with email verification. ==

I'm not getting the verification email. I checked everywhere in my inboxes, and dodecatuple-checked the email address I provided. Can anything be done? Although I guess it doesn't seem to be strictly necessary. Thank you. [[User:Paintadot|Paintadot]] ([[User talk:Paintadot|talk]]) 17:10, 2 May 2024 (UTC)

== Reclaim user account "rosuav" ==

I tried to sign in to make a small edit to #2954, but I can't create an account with my standard user name "Rosuav" due to one already existing; yet there's apparently no email address on file for that username. Is there a way to prove that I am that person, and request that it be unlocked? I use the same name everywhere eg GitHub, Twitch, Discord, Twitter (if that's at all relevant any more), and am the owner of the rosuav.com domain as well. [[Special:Contributions/172.68.144.144|172.68.144.144]] 06:10, 4 July 2024 (UTC)
:My instinct is that it could be done, but won't be. Even demonstrably owning the domain (with provable history) doesn't really trump the rights of any person who may have equally logical reasons for having beaten you to choosing 'their' username here. Yes, it leaves the way open for malicious cybersquatting/cybergazumping (haven't checked the history of this interloper account, to see if it's been unused/abused in 'your' name), but otherwise it sets an awful precedent of claim and counterclaim.
:I think you might just have to accept that you'll need a (totally, or slightly) different username here. Or do without, as you and I currently are.
:...not wishing to speak for the 'admins' here, who may suggest otherwise, but fairly safe in thinking that the hoops needed to be jumped through to 'correct' things in the fairest way are too untrivial, compared to the relative importance of task and any vital need. [[Special:Contributions/172.70.163.120|172.70.163.120]] 11:56, 4 July 2024 (UTC)

::Are the admins able to rename accounts? [[Special:Contributions/172.71.147.86|172.71.147.86]] 12:46, 8 July 2024 (UTC)

:::I think I've seen it done, maybe once, definitely a long time ago, unless I'm thinking of a completely different wiki(-like) server. But for totally different reasons than shuffling usernames in and out of use (in ways that didn't involve just account deletion, which is the clearer 'first step' that could possibly be justified).
:::Think about it, there's potentially a completely separate existing 'owner' of the contentious username. There's no pre-existing presumption that "<n> years of idleness" ever makes an identity forfeit, certainly not explicitly stated. Unlike various other login-mediated services, there's no real 'private space' to argue over ownership (and legitimate access) for, which saves some problems but then renders moot various possible reasons for making exceptional admin-changes.
:::For any purpose that mattersz it doesn't matter if you sign up as <code>JoeBloggs</code> or <code>Joe Bloggs</code> or <code>The Real Joe Bloggs</code> or <code>JoeyBloggs2008</code> or <code>JB003½</code> or <code>The Name's Bloggs, Joe Bloggs. Licenced To Kill, And Drive A Heavy Goods Vehicle</code>. Look at the [[Special:Log/newusers]], and see how meaningless any given username is, and not worth directly contesting in this sort of circumstance.
:::This is just my observation. I'd defer to any actual Admin who might have a more refined opinion (possibly quite different), Or actual community decisions, by ''named users'', that firmly suggested otherwise. But it looks like there's only three/four of us IPs who have anything to say on the matter. Or it's just me, pointlessly arguing with myself. ;) [[Special:Contributions/172.71.242.60|172.71.242.60]] 14:44, 8 July 2024 (UTC)

== [[Category;Comics featuring real people]] ==

Can someone please delete this? It's obnoxiously showing up as an autocompletion whenever I'm about to search for categories (i.e. when I type "Category" into the search bar, it shows up). It's a main-space article and a cross-namespace redirect. It was probably created as an accident based on the fact that the person who created it soon redirected it to the correct name. It is not linked from any page except this one. —megan [[user talk:megan|talk]]/[[special:contribs/megan|contribs]] 00:26, 14 July 2024 (UTC)

== Removal of administrator permission for [[User:Markhurd|Markhurd]] ==

''Note that this request requires a bureaucrat, but for almost a year neither of our two bureaucrats have been active.''

[[User:Markhurd|Markhurd]] ([[User talk:Markhurd|talk]]) ([[Special:Contribs/Markhurd|contribs]]) has been inactive since 2016 and is blocked because he has passed on. Yet his account still has administrator privileges which may be dangerous, since blocked administrators can still perform certain actions (e.g. blocking the administrator that blocked them). Thus, the account should have its administrator privileges removed. —megan [[user talk:megan|talk]]/[[special:contribs/megan|contribs]] 05:56, 16 July 2024 (UTC)

Actually, on this wiki, per [[Special:ListGroupRights]], administrators have the <code>unblockself</code> user right, allowing them to unblock themselves. So blocking an administrator doesn't really do anything at all. —megan [[user talk:megan|talk]]/[[special:contribs/megan|contribs]] 06:05, 16 July 2024 (UTC)

== The crapper is back ==

And eir username is [[User:💩💩💩💩💩]]. [[User:AndroidTheLucario|Your favorite aura doggo]] ([[User talk:AndroidTheLucario|talk]]) 13:41, 16 July 2024 (UTC)
:Looking through the search archives, I see now. Maybe it's the person I had a brief revert skirmish with on 11 March 2023. Seems like that account stopped vandalizing a while ago, though their vandalism of a highly transcluded template makes me worried. —Megan [[user talk:megan|talk]] [[special:contribs/megan|contribs]] 10:06, 20 July 2024 (UTC)
::Never rule out copycats, who did a bit of basic research. Or who were around the two or three times that this particular pattern occured, before, perhaps they weren't bored enough to join in then, or suddenly their hormones kicked in and they decided now was the time to rebel. Motives aren't easy to establish, beyond "because I can" and some strange urge to act out. For a number of minor reasons, that I'll not go fully into (because explaining would take more time than I place value on their actual correctness), I don't think it was "the crapper" seriously trying to revive their art.
::One other (broad) guess I have is that it's just a 'tagging' exercise/dare concocted by the off-site group from whom the original came, to have a new member fulfil initiation. I'm all but certain that certain lessons learnt by the original individual(s) weren't remembered, yet the choice of blindingly obvious emoji-username does seem like a relatively 'new' thought, so probably a different mind behind the implementation.
::Maybe they've even now got a sweepstake on how long it takes for the offending username to be banned? (Really should have been, already, though it doesn't matter in the long run if/when...) [[Special:Contributions/172.70.85.19|172.70.85.19]] 11:05, 20 July 2024 (UTC)
New crapper: [[Special:Contribs/The crapper is back]]. For some reason these users aren't really doing much - they seem to edit a bit and then back off. —megan [[user talk:megan|talk]] [[special:contribs/megan|contribs]] 05:46, 22 July 2024 (UTC)
:Interesting to note that the crapper reappears at very close to the point in time that a number of CGs become active, by the way. Which is absolutely not the first time they both coincide (sometimes 'helping de-crap').
:Also CG accounts have a nasty habit of reverting an error recently added by (usually) an IP, and, if they can't find enough actual useful typos to correct (the spate of searching for rogue "the the"s was actually mostly useful and correct, but didn't take enough care about it). Also, CGs tend to revert any things that even ''suggest the CGs are linked'' as if to try to erase that idea from everyone's memory, rather than laugh it off or ignore it or say "yeah, and..? ...your problem is?" and I rather expect that this comment will get the same treatment. Which doesn't link 'them' to the crapper, but does become rather tedious in its own right. So perhaps 'they' should take the hint to stop that. [[Special:Contributions/172.70.160.249|172.70.160.249]] 10:44, 22 July 2024 (UTC)
:Addendum, an IP (other than me, obviously) has reverted CG's genuine (or at least correct) "the the"-like corrections several more times than the one that you (Megan) did. I re-reverted them. So that nobody else needs to. Nobody. (It could also be a game being played, or some weird steganographic alteration, but I'm defering back to just being 'helpful' but careless behaviour on behalf of a genuinely non-CG and otherwise CG-unaffiliated IP address.) [[Special:Contributions/172.70.163.121|172.70.163.121]] 11:07, 22 July 2024 (UTC)

== Comic # 2974 explanation ==

Someone please hug the editor of the explanation of comic #2974. They seem a little depressed. I noticed your nitpickyness and I cared. Thank you. Also you made me laugh a bunch. {{unsigned ip|172.70.111.167|13:28, 21 August 2024}}
:I don't see that myself (though there will be a number of editors, maybe the bits you mean are less obvious now) although hugs are rarely a bad idea (being careful in cases of sunburn, dermititis, excessive blisters or bubonic infections of various kinds) so free (but entirely optional!) hugs all round. Just because not all symptoms of depression are particularly obvious anyway. [[Special:Contributions/172.70.162.17|172.70.162.17]] 14:37, 21 August 2024 (UTC)

explain xkcd talk:Community portal

2024-08-01T11:25:22Z

172.70.162.17: Undo revision 347816 by 162.158.41.227 (talk) No obvious constructiveness/exiting another's comments.

{{notice|The comments below are preserved as an archive. '''Please don't use this page for further discussions.''' Use the [[Explain XKCD:Community portal|Community portal]] sections instead.}}

I'd like to suggest that we start off [[Explain XKCD:Community portal|this page]] with a link to [[Special:SpecialPages]] for those non-wiki users among us - lots of cool things to be done with the software that isn't immediately apparent. Perhaps a link to the [[wikipedia:Wikipedia:Tutorial]] as well. --''[[User:Philosopher|Philosopher]]'' [[User talk:Philosopher|Let us reason together.]] 07:30, 1 August 2012 (EDT)
:Heh, done. Feel free to change it if you want.--''[[User:Philosopher|Philosopher]]'' [[User talk:Philosopher|Let us reason together.]] 08:42, 1 August 2012 (EDT)

== Automatic Import ==

I'm planning to import all comics automatically. Please have a look at [[User talk:Jeff#Automatic Import]], I need more feedback. --[[User:SlashMe|SlashMe]] ([[User talk:SlashMe|talk]]) 06:03, 3 August 2012 (EDT)
:If we could reserve this page to talking ''about'' the Community portal, it'd be awesome. :) We've got enough discussion pages going at the moment, anyway... --''[[User:Philosopher|Philosopher]]'' [[User talk:Philosopher|Let us reason together.]] 21:04, 3 August 2012 (EDT)

== « Login error: Incorrect or missing confirmation code. » ==
Please, how could I possibly do that? I do not see any such code, nor do I see an input box.

I do not actually know « What is the first name of the writer of the webcomic this wiki is about? ». & spellcheck is telling me that « webcomic » is not a conjoined word, which would be silly.

I am here by way of [[ Chris Hayes]], [[ msnbc]].

Please do assist this ignoramus to register, so that I can write many more ignorant comments.

Thank You,

[[Special:Contributions/67.49.15.12|67.49.15.12]] 15:31, 20 June 2013 (UTC)

It has taken a few hours; but, [[ explainxkcd ]] has finally accepted me. I do not yet know « What is the first name of the writer of the webcomic this wiki is about? ».

* [[ 1227 ]]

* « The art of letter-writing is fast dying out. When a letter cost nine pence, it seemed but fair to try to make it worth nine pence ... Now, however, we think we are too busy for such old-fashioned correspondence. We fire off a multitude of rapid and short notes, instead of sitting down to have a good talk over a real sheet of paper. » 1871.

* « The age of leisure is dead, and the art of conversation is dying. A craving for literary nips. There never was an age in which so many people were able to write badly. » 1890.

* « People talk as they ride bicycles–at a rush–without pausing to consider their surroundings the profession of letters is so little understood, tendency among the children of today to rebel against restraint. » 1905.

* [[ 1214]]: Little more than a month ago, Chris Hayes had described [[ geoguessr]], which I had, @ first, [[ websearch]]ed as [[ geoguesser]], [[ geo guesser]]. I do think that [[ Anton Wallen ]] | [[ Anton Wallén ]] should link; may I? My machine [[ crash]]es | [[ freeze]]s so much that my score does not last very long. < http://geoguessr.com >.

Thank You,

[[User:Hopiakuta|hopiakuta DonFphrnqTaub Persina hopiakuta]] ([[User talk:Hopiakuta|talk]]) 17:10, 20 June 2013 (UTC)

:First: Check your links with the preview button, nearly all are not working (red color does show this).
:Second: @IP: Check if JavaScript is enabled at your Browser, don't use a Browser from last century... it's just on your site.
:Third: @Hopiakuta: I simply do not understand.--[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 18:52, 20 June 2013 (UTC)

::Please explain [[ captcha ]] riddles, like: « What is the first name of the writer of the webcomic this wiki is about? ». Why did it block me for a long time with?: « Login error: Incorrect or missing confirmation code. »? Obviously, I am now registered; but, why had I been blocked out for an extended period? Also, [[ hopiakuta ]] is a [[ screenname ]] that I often register; DonFphrnqTaub Persina is my name, my full name, actual name, true name. If I add [[ redirect]]s, it is good or bad or neutral?

::Thank You, [[User:Hopiakuta|hopiakuta DonFphrnqTaub Persina hopiakuta]] ([[User talk:Hopiakuta|talk]]) 19:19, 20 June 2013 (UTC)

:::I did edit your chaos and I'm asking you stop this. All your links are still crap and not working (READ my previous reply)! Do not shout here but ask just a simple question. I will help.--[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 20:10, 20 June 2013 (UTC)

If you are not entirely angry, then userpage, please. I can also use a telephone.

[[User:Hopiakuta|hopiakuta DonFphrnqTaub Persina hopiakuta]] ([[User talk:Hopiakuta|talk]]) 22:55, 20 June 2013 (UTC)

2117: Differentiation and Integration

2024-07-31T18:03:37Z

172.70.162.17: What? "removed useless info"? As it's a section in the comic, I don't see the intent here. Reverting.

{{comic
| number = 2117
| date = February 27, 2019
| title = Differentiation and Integration
| image = differentiation_and_integration.png
| titletext = "Symbolic integration" is when you theatrically go through the motions of finding integrals, but the actual result you get doesn't matter because it's purely symbolic.
}}

==Explanation==
{{incomplete|The HTML needs to be fixed. CS students, please help us.}}
This comic illustrates the old saying [https://mathoverflow.net/q/66377 "Differentiation is mechanics, integration is art."] It does so by providing a {{w|flowchart}} purporting to show the process of differentiation, and another for integration.

{{w|Derivative|Differentiation}} and {{w|Antiderivative|Integration}} are two major components of {{w|calculus}}. As many Calculus 2 students are painfully aware, integration is much more complicated than the differentiation it undoes.

However, Randall dramatically overstates this point here. After the first step of integration, Randall assumes that any integration can not be solved so simply, and then dives into a step named "????", suggesting that it is unknowable how to proceed. The rest of the flowchart is (we can assume deliberately) even harder to follow, and does not reach a conclusion. This is in contrast to the simple, straightforward flowchart for differentiation. The fact that the arrows in the bottom of the integration part leads to nowhere indicates that "Phone calls to mathematicians", "Oh no" and "Burn the evidence" are not final steps in the difficult journey. The flowchart could be extended by Randall to God-knows-where extents.

It should be noted that Randall slightly undermines his point by providing four different methods, and an "etc", and a "No"-branch for attempting differentiation with no guidelines for selecting between them.

===Differentiation===
'''{{w|Chain rule}}'''

For any <math> \frac{d}{dx}f(x)=f'(x)</math> and <math> \frac{d}{dx}g(x)=g'(x) </math>, it follows that <math> \frac{d}{dx}(f(g(x)))=f'(g(x))\cdot g'(x)</math>.

'''{{w|Power Rule}}'''

For any <math> f(x)=g(x)^a </math> and <math> \frac{d}{dx}g(x)=g'(x) </math>, it follows that <math> \frac{d}{dx}f(x)=a\cdot g(x)^{a-1}\cdot g'(x) </math>.

'''{{w|Quotient rule}}'''

For any <math> \frac{d}{dx}f(x)=f'(x)</math> and <math> \frac{d}{dx}g(x)=g'(x) </math>, it follows that <math> \frac{d}{dx} \frac{f(x)}{g(x)}=\frac{f'(x)\cdot g(x)-f(x)\cdot g'(x)}{(g(x))^2}</math> if <math>g(x)\ne 0</math>.

'''{{w|Product rule}}'''

For any <math> \frac{d}{dx}f(x)=f'(x)</math> and <math> \frac{d}{dx}g(x)=g'(x) </math>, it follows that <math> \frac{d}{dx}(f(x)\cdot g(x))=f'(x)\cdot g(x)+f(x)\cdot g'(x)</math>.

===Integration===
'''{{w|Integration by parts}}'''

The "product rule" run backwards. Since <math>(uv)' = uv' + u'v</math>, it follows that by integrating both sides you get <math> uv = \int u dv + \int v du</math>, which is more commonly written as <math>\int u dv = uv - \int v du</math>. By finding appropriate values for functions <math>u, v</math> such that your problem is in the form <math>\int u dv</math>, your problem ''may'' be simplified. The catch is, there exists no algorithm for determining what functions they might possibly be, so this approach quickly devolves into a guessing game - this has been the topic of an earlier comic, [[1201: Integration by Parts]].

'''{{w|Integration by substitution|Substitution}}'''

The "chain rule" run backwards. Since <math> d(f(u)) = f'(u) \frac{du}{dx} dx</math>, it follows that <math>f(u) = \int f'(u) \frac{du}{dx} dx</math>. By finding appropriate values for functions <math>f, u</math> such that your problem is in the form <math>\int f'(u) \frac{du}{dx} dx</math> your problem ''may'' be simplified.

'''{{w|Cauchy's integral formula|Cauchy's Formula}}'''

Cauchy's Integral formula is a result in complex analysis that relates the value of a contour integral in the complex plane to properties of the singularities in the interior of the contour. <math> \frac{d^n}{da^n}f(a) = \frac{n!}{2\pi i} \oint_\gamma \frac{f(z)}{\left(z-a\right)^{n+1}}\, dz.</math> It is often used to compute integrals on the real line by extending the path of the integral from the real line into the complex plane to apply the formula, then proving that the integral from the parts of the contour not on the real line has value zero.

'''{{w|Partial_fraction_decomposition#Application_to_symbolic_integration|Partial Fractions}}'''

Partial fractions is a technique for breaking up a function that comprises one polynomial divided by another into a sum of functions comprising constants over the factors of the original denominator, which can easily be integrated into logarithms.

'''Install {{w|Mathematica}}'''

Mathematica is a modern technical computing system spanning most areas. One of its features is to compute mathematical functions. This step in the flowchart is to install and use Mathematica to do the integration for you. Here is a description about the [https://web.archive.org/web/20180727184709/http://reference.wolfram.com/language/tutorial/IntegralsThatCanAndCannotBeDone.html intricacies of integration and how Mathematica handles those]. (It would be quicker to try [https://www.wolframalpha.com Wolfram Alpha] instead of installing Mathematica, which uses the same backend for mathematical calculations.)

'''{{w|Riemann integral|Riemann Integration}}'''

The Riemann integral is a definition of definite integration. Elementary textbooks on calculus sometimes present finding a definite integral as a process of approximating an area by strips of equal width, as in <math>\sum_{i=0}^{n-1} f(t_i) \left(x_{i+1}-x_i\right).</math>, and then taking the limit as the strips become narrower. Riemann integration removes the requirement that the strips have equal width, and so is a more flexible definition. However there are still many functions for which the Riemann integral doesn't converge, and consideration of these functions leads to the {{w|Lebesgue integration|Lebesgue integral}}. Riemann integration is not a method of calculus appropriate for finding the anti-derivative of an elementary function.

'''{{w|Stokes' Theorem}}'''

Stokes' theorem is a statement about the integration of differential forms on manifolds. <math>\int_{\partial \Omega}\omega=\int_\Omega d\omega\,.</math> It is invoked in science and engineering during control volume analysis (that is, to track the rate of change of a quantity within a control volume, it suffices to track the fluxes in and out of the control volume boundary), but is rarely used directly (and even when it is used directly, the functions that are most frequently used in science and engineering are well-behaved, like sinusoids and polynomials).

'''{{w|Risch Algorithm}}'''

The Risch algorithm is a notoriously complex procedure that, given a certain class of symbolic integrand, either finds a symbolic integral or proves that no elementary integral exists. (Technically it is only a semi-algorithm, and cannot produce an answer unless it can determine if a certain symbolic expression is {{w|Constant problem|equal to 0}} or not.) Many computer algebra systems have chosen to implement only the simpler Risch-Norman algorithm, which does not come with the same guarantee. A series of extensions to the Risch algorithm extend the class of allowable functions to include (at least) the error function and the logarithmic integral. A human would have to be pretty desperate to attempt this (presumably) by hand.

'''{{w|Bessel function}}'''

Bessel functions are the solution to the differential equation <math> x^2 \frac{d^2y}{dx^2}+x \frac{dy}{dx}+(x^2-n^2)*y=0</math>, where n is the order of Bessel function. Though they do show up in some engineering, physics, and abstract mathematics, in lower levels of calculus they are often a sign that the integration was not set up properly before someone put them into a symbolic algebra solver.

'''Phone calls to mathematicians'''

This step would indicate that the flowchart user, desperate from failed attempts to solve the problem, contacts some more skilled mathematicians by phone, and presumably asks them for help. The connected steps of "Oh no", "What the heck is a Bessel function?" and "Burn the evidence" may suggest the possibility that this interaction might not play out very well and could even get the caller in trouble.
Specialists and renowned experts being bothered - not to their amusement - by strangers, often at highly inconvenient times or locations, is a common comedic trope, also previously utilized by xkcd (for example in [[163: Donald Knuth]]).

'''Burn the evidence'''

This phrase parodies a common trope in detective fiction, where characters burn notes, receipts, passports, etc. to maintain secrecy. This may refer to the burning of one's work to avoid the shame of being associated with such a badly failed attempt to solve the given integration problem. Moreover, such a poor attempt at integration could be viewed as a 'crime against mathematics', with the working of the problem being criminal 'evidence' that must be destroyed to avoid exposure as the culprit. Alternatively, it could be an ironic hint to the fact that in order to find the integral, it may even be necessary to break the law or upset higher powers, so the negative consequences of a prosecution can only be avoided by destroying the evidence.

'''{{w|Symbolic integration}}'''

Symbolic integration is the basic process of finding an antiderivative function (defined with symbols), as opposed to numerically integrating a function. The title text is a pun that defines the term not as integration that works with symbols, but rather as integration as a symbolic act, as if it were a component of a ritual. A symbolic act in a ritual is an act meant to evoke something else, such as burning a wooden figurine of a person to represent one’s hatred of that person. Alternatively, the reference could be seen as a joke that integration might as well be a symbol, like in a novel, because Randall can't get any meaningful results from his analysis.

==Transcript==
:[Two flow charts are shown.]

:[The first flow chart has four steps in simple order, one with multiple recommendations.]
:DIFFERENTIATION
:Start
:Try applying
::Chain Rule
::Power Rule
::Quotient Rule
::Product Rule
::Etc.
:Done?
::No [Arrow returns to "Try applying" step.]
::Yes
:Done!

[The second flow chart begins like the first, then descends into chaos.]
:INTEGRATION
:Start
:Try applying
::Integration by Parts
::Substitution
:Done?
:Haha, Nope!

:[Chaos, Roughly from left to right, top to bottom, direction arrows not included.]
::Cauchy's Formula
::????
::???!?
::???
::???
::?
::Partial Fractions
::??
::?
::Install Mathematica
::?
::Riemann Integration
::Stokes' Theorem
::???
::?
::Risch Algorithm
::???
::[Sad face.]
::?????
::???
::What the heck is a Bessel Function??
::Phone calls to mathematicians
::Oh No
::Burn the Evidence
::[More arrows pointing out of the image to suggest more steps.]

{{comic discussion}}
[[Category:Analysis]]
[[Category:Flowcharts]]
[[Category:Math]]

Talk:2965: Chili Tornado Quake

2024-07-30T14:19:24Z

172.70.162.17:

for some reason I always feel nervous providing an initial transcript like I'm gonna do the format wrong but nah this transcript is pretty simple, would be hard to get it very wrong - [[User:Vaedez|Vaedez]] ([[User talk:Vaedez|talk]]) 04:02, 30 July 2024 (UTC)
:No need to worry cause it can always be changed. I have tweaked the transcript a bit. --[[User:Kynde|Kynde]] ([[User talk:Kynde|talk]]) 09:06, 30 July 2024 (UTC)

wait--is the titletext missing a "due"? - [[User:Vaedez|Vaedez]] ([[User talk:Vaedez|talk]]) 04:04, 30 July 2024 (UTC)
:I think so, yeah. First time I've seen Randall make a mistake in the alt text. [[Special:Contributions/162.158.137.212|162.158.137.212]] 04:33, 30 July 2024 (UTC)
::I have seen this several times, and sometimes he fixed it later. I have added this to a trivia section. If it is changed, it should still be mentioned there, but of course updated with the original mistake instead. --[[User:Kynde|Kynde]] ([[User talk:Kynde|talk]]) 09:06, 30 July 2024 (UTC)

Funnily enough, an earthquake large enough to shake the house occurred near me today! No chili peppers and definitely no tornadoes nearby, (un)fortunately. [[Special:Contributions/162.158.91.92|162.158.91.92]] 04:02, 30 July 2024 (UTC)

Wonder how the scales combine. Given that Richter and Fujita are both single digit numbers (well, Richter can go above 10, but normally only when Roland Emmerich is directing), they would be pretty meaningless in an additive scale, so I would assume multiplicative. If so, the amount of damage to the building suggests relatively mild peppers.[[User:RegularSizedGuy|RegularSizedGuy]] ([[User talk:RegularSizedGuy|talk]]) 04:11, 30 July 2024 (UTC)
:what if it's like a geometric mean or smth? that feels like it makes more sense than additive and it would also allow the average pepper involved in the incident to be ''higher'' than the 55k listed - [[User:Vaedez|Vaedez]] ([[User talk:Vaedez|talk]]) 04:19, 30 July 2024 (UTC)
::I believe the only method that makes sense is multiplying. Since spicy can go to 0, then 2000-3000 is probably still pretty strong for most people? Anyway, it may have been a smaller earthquake and not that big a tornado, maybe 3 and 6 then it alt least get above 3000. I have added these considerations to the explanation. --[[User:Kynde|Kynde]] ([[User talk:Kynde|talk]]) 09:06, 30 July 2024 (UTC)
:::No method makes 'sense' - the whole comic aspect is that it makes no sense to combine these scales in the first place. Given that, I think the question is unanswerable, since it would require knowledge of a non-existent purpose that the scale is trying to achieve.[[Special:Contributions/172.69.43.175|172.69.43.175]] 14:17, 30 July 2024 (UTC)
::3000 is a low-end jalapeno, even a serrano is about 10k. Habanero is a couple of 100k. Would it be complete scientific abomination to take Fujita/Richter as additive and then multiply the result by scoville? [[Special:Contributions/172.69.43.167|172.69.43.167]] 13:00, 30 July 2024 (UTC)
:Though I agree that a multiplicative compound unit is most likely (unlike the additive Erdős–Bacon one, and further variations), it's worth noting that you can have F0 tornados, zero (as well as negative) in the Richter scale and/or 0 Scoville peppers (though the latter less likely, here). If either of the first two are counted as zero, they stil ''exist'', but means that any (finite) values attributed to the remaining measure would never produce a combined unit that is non-zero. So you probably have to lower-limit the Tornado measurement and ensure the Earthquake one is >0 to back-calculate any sensible Pepper value. If done as per the EB method, though, it just means that the source Scoville number is pretty much the whole contributor to the resulting sum (even if itçs an F5 with a 10 on the Ricbter scale, it's just 15 less than the merged value). Geptetic meandrians, aside, there are few other 'logical' functions between these three source values and the combo-evaluation, but many that might stretch plausibility. [[Special:Contributions/172.68.186.90|172.68.186.90]] 13:11, 30 July 2024 (UTC)

I could have sworn Randall already made this joke... Maybe I'm thinking of [[1531]]. [[Special:Contributions/172.69.60.147|172.69.60.147]] 05:43, 30 July 2024 (UTC)

on the current state of the trivia section, i'm pretty sure we're not supposed to have opaque links that say "here" and have some comic they go to and that the structure of the sentence should be more like "in [comic x] randal also...", but i'm too tired to phrase it out rn and not entirely sure of this either - [[User:Vaedez|Vaedez]] ([[User talk:Vaedez|talk]]) 08:19, 30 July 2024 (UTC)
:I agree and also we usually do not make a trivia section to link to relevant comics so I moved it into the explanation. --[[User:Kynde|Kynde]] ([[User talk:Kynde|talk]]) 09:06, 30 July 2024 (UTC)

Is it relevant that Twisters just came out a couple weeks ago? [[User:Barmar|Barmar]] ([[User talk:Barmar|talk]]) 12:37, 30 July 2024 (UTC)

User talk:Jeff

2024-07-24T15:43:47Z

172.70.162.17: /* Print Book? */

{{notice|This is the talk page of Jeff, the creator of Explain XKCD. If you have a comment about the wiki, please use the [[Explain XKCD:Community portal]]. Use this page only for personal messages to Jeff, of for requests that require server access.}} 

== Print Book? ==

Hi Jeff,

Has it ever been suggested that parts of ExplainXKCD -- say, the first ten years of comments -- could be made into a print book, obviously only with the permission of Randall Munroe? -- margavriel
: It has not been suggested - I'm not even sure how to go about and do such a thing. I wouldn't even know how to communicate to Randall. --[[User:Jeff|Jeff]] ([[User talk:Jeff|talk]]) 00:23, 7 November 2021 (UTC)
:: You don't need Randall's permission - xkcds are creative commons. {{unsigned|B for brain|14:34, 24 July 2024}}
::: The question is clearly about ExplainXKCD's content. Which will necessarily include Randall's works, as well as others, with a small mix of different inherent rights.
::: But the real issue is that there'd be plenty of non-profit issues, which will be hard (though not impossible) to reconcile with the downlay for the physical book's printing/distribution and any token payments needed to not make it just an expensive give-away.
::: And the effort to untangle everything (it'd be good to ''try'' to check with Randall and ''every explainxkcd contributor'' that would get reproduced) is complex for anything other than any purely personal Send To Printer that nobody else would even know/care about. [[Special:Contributions/172.70.90.145|172.70.90.145]] 15:18, 24 July 2024 (UTC)
::: By the way, check [[explain xkcd:Copyrights]] and [[Design of xkcd.com#License and copyright]], plus be aware that some comics have been given altered rights for enhanced compatability with their re-use in other places (like Wikipedia/TVTropes), and things like the What-Ifs may be intrinsically different for Randall's own book-rights usage/etc
::: I don't suppose you were prompted to think about book-printing because of the recent [https://youtu.be/RgBYohJ7mIk YouTube video], were you? I think we could have a section about those (as per the original What-If pages listing), if someone wants to create it. [[Special:Contributions/172.70.162.18|172.70.162.18]] 15:42, 24 July 2024 (UTC)

== ParserFunctions ==

Hi Jeff,

Just thought I'd run this up the flagpole... any thought about installing the ParserFunctions extension? I think this site could benefit from a few templates that would aid in indexing/categorizing the entries as content is migrated, and ParserFunctions would make some really impressive things possible... but installing any extension or not would be up to you.

Also, do you have any feelings about us users creating templates in the Template namespace, which we could use to maintain the content? Just wanted to get your thumbs-up before/if I did something like that. Just want to play nice. Love the site, and the new wiki format.

- PT [[User:IronyChef|IronyChef]] ([[User talk:IronyChef|talk]]) 03:05, 1 August 2012 (EDT)
:ParserFunctions are awesome, yup! --''[[User:Philosopher|Philosopher]]'' [[User talk:Philosopher|Let us reason together.]] 06:56, 1 August 2012 (EDT)
::{{done}} Yes to both. I have enabled ParserFunctions and Templates sound like a great idea. IronyChef, please send me an email at the address on the blog and I'll make you an admin if necessary to edit templates. --[[User:Jeff|Jeff]] ([[User talk:Jeff|talk]]) 08:03, 1 August 2012 (EDT)

== Extension:Variable ==
Just wondering what you thought about adding the [http://www.mediawiki.org/wiki/Extension:Variables Variables extension]. I'm toying with revising {{tl|LATESTCOMIC}} to not be so expensive (both in terms of template expansion, and ongoing maintenance.) I could do that now, but the wiki would have to re-expand and re-evaluate the same expression about six times, being slightly counter-productive. -- [[User:IronyChef|IronyChef]] ([[User talk:IronyChef|talk]]) 14:54, 25 August 2012 (UTC)
:: any thoughts ... up, down, sideways? Thanks! -- [[User:IronyChef|IronyChef]] ([[User talk:IronyChef|talk]]) 15:34, 1 September 2012 (UTC)
::: I'm up for it... Let me get it installed on the wiki side when I get a chance. --[[User:Jeff|Jeff]] ([[User talk:Jeff|talk]]) 23:13, 3 September 2012 (UTC)

== Bugging you again.... ==

Could you take a look at [//www.explainxkcd.com/wiki/index.php?limit=10000&tagfilter=&title=Special%3AContributions&contribs=user&target=Philosopher&namespace=8&year=&month=-1] and tell me if I'm thinking in about the same way as you are here? Also, I've brought up [[MediaWiki:Tagline]] and [[Explain XKCD:Community portal]], as it'd be cool to have a tagline. --''[[User:Philosopher|Philosopher]]'' [[User talk:Philosopher|Let us reason together.]] 10:46, 1 August 2012 (EDT)
:With you 100% on the File Delete reasons. Thanks. I agree also about having a tagline. What do you think it should be? --[[User:Jeff|Jeff]] ([[User talk:Jeff|talk]]) 11:13, 1 August 2012 (EDT)
::Nothing's coming to mind right now. Perhaps someone else will think of something. --''[[User:Philosopher|Philosopher]]'' [[User talk:Philosopher|Let us reason together.]] 17:54, 2 August 2012 (EDT)
Discussion continued at [[Explain XKCD:Community portal/Proposals#Tagline]].

== Automatic Import ==
Moved to [[Explain XKCD:Community portal/Proposals#Automatic Import]]. (Header left to avoid breaking links.) --''[[User:Philosopher|Philosopher]]'' [[User talk:Philosopher|Let us reason together.]] 00:30, 4 August 2012 (EDT)

== Please watch [[Explain XKCD:Community portal/Administrators' noticeboard]] ==

I'd like to ask that the admins consider adding [[Explain XKCD:Community portal/Administrators' noticeboard]] to their [[wikipedia:Help:Watching pages|watchlists]]. On a similar note, I've just started a discussion there about spammers. -''[[User:Philosopher|Philosopher]]'' [[User talk:Philosopher|Let us reason together.]] 02:02, 4 August 2012 (EDT)

== Images from Wikimedia Commons and SVG ==
Please set <code>$wgUseInstantCommons = true;</code> in the wiki's LocalSettings.php, so we can use images from Wikimedia Commons without having to reupload them here.
Also, I'd be neat if you could [[mw:Manual:Image Administration#SVG|enable svg images]]. Thanks! --[[User:Waldir|Waldir]] ([[User talk:Waldir|talk]]) 04:20, 4 August 2012 (EDT)
: {{done}}, Instant Commons is on. Will need a little more work to get SVG images to work. What renderer to do you suggest I use? --[[User:Jeff|Jeff]] ([[User talk:Jeff|talk]]) 12:05, 6 August 2012 (UTC)
:: That'll depend on what you have available in your server. They say there that ImageMagick seems to be an acceptable choice, but rsvg seems to be the best one if the dependencies can be sorted out. --[[User:Waldir|Waldir]] ([[User talk:Waldir|talk]]) 13:20, 6 August 2012 (UTC)

== Search suggestions ==

Hi,

could you please set $wgEnableMWSuggest [http://www.mediawiki.org/wiki/Manual:$wgEnableMWSuggest] to true? This enables search suggestions for the search field, and often this helps you to skip the search results. --[[User:SlashMe|SlashMe]] ([[User talk:SlashMe|talk]]) 09:10, 4 August 2012 (EDT)
:{{done}} OK, this is has been added to the LocalSettings. --[[User:Jeff|Jeff]] ([[User talk:Jeff|talk]]) 12:06, 6 August 2012 (UTC)

== Time zone ==

Please set the wiki to UTC (<tt>$wgLocaltimezone = "UTC";</tt> in LocalSettings.php), as it's the most neutral option for our international community. In any case, each user can choose their time zone in their preferences.
:{{done}} Ok, set. --[[User:Jeff|Jeff]] ([[User talk:Jeff|talk]]) 12:07, 6 August 2012 (UTC)

== Short urls, site logo, lowercase xkcd ==

Hi,
I'm not sure if you tried it but http://shorturls.redwerks.org is a great (and simple :D) tool to implement clean urls with mediawiki. That would make urls much nicer around here.

Also, if you could, please take a look at [[Explain XKCD:Community portal/Proposals#Naming conventions]], where your assistance is needed for some server changes. --[[User:Waldir|Waldir]] ([[User talk:Waldir|talk]]) 15:31, 6 August 2012 (UTC)

:Hi again :) just to remind you about the short urls thing. I think it would be great if we could have wiki links in the form "explainxkcd.com/wiki/link_title". It might be necessary to move the wiki into a different folder name than "wiki", but that's just a matter of renaming the folder and changing <code>$wgScriptPath</code> in LocalSettings.php accordingly. The link above makes things really straighforward, it should really only take you a few minutes to set everything up.
:Another cool thing that could be done is set up a server redirect so that links in the form of explainxkcd.com/number would point to the comics in the wiki instead of returning a 404 error (for instance, http://explainxkcd.com/123 would point to http://explainxkcd.com/wiki/123). That way, we could replicate xkcd's own url system for comics and people could simply type explainxkcd.com/123 and get the explanation for the corresponding comic. This redirect can probably be set up in the hosting company's web interface, but in case it can't, let me know if you need any help. --[[User:Waldir|Waldir]] ([[User talk:Waldir|talk]]) 22:03, 11 August 2012 (UTC)
::Hi Waldir - I'll work on the short URL thing. I want that to work for sure. With regards to the redirect, I have been working on it for a while and I have a few .htaccess files and etc that don't work. I'll be grateful for the help on it. Please send me an email if you know how to get it done. This would also allow anyone from xkcd.com/435 to just add explain and go to the comic explanation. Very helpful. Been working on it unsuccessfully for a while. --[[User:Jeff|Jeff]] ([[User talk:Jeff|talk]]) 01:41, 12 August 2012 (UTC)
:::Ugh, it must be my hosting because I did all of the shorturls correctly it just sent it to a 404 page for the site over and over again. The url seemed to be the right one, but didn't send it to the right location. It should NOT be this difficult. --[[User:Jeff|Jeff]] ([[User talk:Jeff|talk]]) 02:25, 12 August 2012 (UTC)

== wgCapitalLinks ==

Hi Jeff! When you have a few spare minutes, please add the following to LocalSettings.php:
$wgCapitalLinks = false;
This allows page titles not to be automatically capitalized by the software, which is important for filenames and for some comic titles such as [[s/keyboard/leopard/]]. Cheers, [[User:Waldir|Waldir]] ([[User talk:Waldir|talk]]) 21:34, 11 August 2012 (UTC)
:{{done}} --[[User:Jeff|Jeff]] ([[User talk:Jeff|talk]]) 01:37, 12 August 2012 (UTC)
::...and this broke our templates (and maybe [[Special:RecentChanges]]?). See [[explain xkcd:Community portal/Admin requests]]. Can't we just style the page titles so they appear as though they aren't capitalized when they really are? (As done at [[wikipedia:Xkcd]], using the DISPLAYTITLE magic word (called through [[wikipedia:Template:DISPLAYTITLE]]).) --''[[User:Philosopher|Philosopher]]'' [[User talk:Philosopher|Let us reason together.]] 04:42, 12 August 2012 (UTC)
:::Looks like transition pains would be inevitable. I think everything is sorted out for now. See the Admin requests thread for details. As for using DISPLAYTITLE, I understand the rationale, but this is xkcd and attention to capitalization is necessary in several pages, and I believe we'd rather use a complete solution (so that pages actually have the correct title) rather than hacking what is shown to viewers. In any case, we shouldn't have many problems in the future because of this; People will only capitalize the first letter of a title when it's actually necessary; otherwise, lazyness/convenience makes us all use lowercase everywhere (besides, redirects can be used just in case, such as {{tl|yesno}} → {{tl|YesNo}}. --[[User:Waldir|Waldir]] ([[User talk:Waldir|talk]]) 09:06, 12 August 2012 (UTC)

== External Images ==

Has there actually been a decision on external images? Or is it just to be decided later?  [[User:Grep|grep]][[User_talk:Grep|talk]] 
: No decision yet. What do you think? --[[User:Jeff|Jeff]] ([[User talk:Jeff|talk]]) 21:16, 28 August 2012 (UTC)
::Well, the whitelisting seems an OK idea. This would help you save space on the servers that you are hosting on, so that's a plus. I say go for whitelisting.  [[User:Grep|grep]][[User_talk:Grep|talk]]  Mostly I am wondering because I created a PHP script that creates an image to display the results of a poll (like on the Moving the Wiki topic in Proposals). For my situation any method of something external being placed on this site will work.
::'''I just''' got an idea... what if there was a group of moderators that check external images and approve them. The more approvals a person gets, the more "reliable" they are considered to be... ?  [[User:Grep|grep]][[User_talk:Grep|talk]] 

== Short Link Problem Fix? ==

Is <code>mod_rewrite</code> installed and enabled? 
[https://www.mediawiki.org/wiki/Manual:Short_URL/Apache MW ShortURL] 
Are all of the config files (including the wiki one) set up?

 [[User:Grep|grep]][[User_talk:Grep|talk]] 

== New admin please? ==

This is a bit forthright of me, but nothing appears to be being done about it. Would you read this [[explain xkcd:Community portal/Proposals#Spampage Rampage]] and comment on it? Thanks, [[User:Lcarsos|lcarsos]] and the community 17:47, 13 November 2012 (UTC)

== Small change ==

Hi Jeff! Long time no see. Look, could you add
:<code>$wgGroupPermissions['autoconfirmed']['autopatrol'] = true;</code>
to LocalSettings.php? That will allow edits by [[mw:auto-confirmed|auto-confirmed]] users not to be marked with a red exclamation mark in recent changes so we can more quickly spot edits that might need reviewing. --[[User:Waldir|Waldir]] ([[User talk:Waldir|talk]]) 02:16, 22 November 2012 (UTC)

:Btw while you're at it, please also add
::<code>$wgAllowUserJs = true;</code>
::<code>$wgAllowUserCss = true;</code>
:So users can make their own scripts and styles to enhance the wiki (I need that, for instance, to test stuff without affecting anyone else, before integrating them on site-wide javascript/css pages) --[[User:Waldir|Waldir]] ([[User talk:Waldir|talk]]) 16:52, 22 November 2012 (UTC)

{{done}} and {{done}} --[[User:Jeff|Jeff]] ([[User talk:Jeff|talk]]) 19:55, 25 November 2012 (UTC)

:Thanks! --[[User:Waldir|Waldir]] ([[User talk:Waldir|talk]]) 19:57, 25 November 2012 (UTC)

:: Sorry, I forgot a small detail: it is necessary to set up the following so that "auto-confirmed" doesn't mean "any registered user":
:: <code>$wgAutoConfirmAge = 60*60*24*3 // accounts become auto-confirmed after 3 days</code>
:: <code>$wgAutoConfirmCount = 10 // ...and 10 edits</code>
:: Cheers, [[User:Waldir|Waldir]] ([[User talk:Waldir|talk]]) 21:32, 25 November 2012 (UTC)

::: {{done}} --[[User:Jeff|Jeff]] ([[User talk:Jeff|talk]]) 21:49, 25 November 2012 (UTC)

:::: Thanks, again. Also, since the wiki didn't break, I take it that you noticed the missing semicolons which I stupidly forgot to include at the end of the lines, and added them. Sorry for the slip-up. --[[User:Waldir|Waldir]] ([[User talk:Waldir|talk]]) 17:31, 26 November 2012 (UTC)
::::: No worries, I know that much at least! :) --[[User:Jeff|Jeff]] ([[User talk:Jeff|talk]]) 17:36, 26 November 2012 (UTC)

Did you by any chance write "auto patrol" instead of "autopatrol"? [[Special:ListGroupRights]] suggests so, and if that's the case, that explains why the changes don't seem to have had the effects I expected from them (edits by auto-patrolled users still marked with the red exclamation mark in Special:RecentChanges). Could you check that the line reads exactly <code>$wgGroupPermissions['autoconfirmed']['autopatrol'] = true;</code>? --[[User:Waldir|Waldir]] ([[User talk:Waldir|talk]]) 17:54, 26 November 2012 (UTC)
: That's what I thought I put even though autocorrect wanted to change it. Can't look now, will have a look when I get home. ---[[User:Jeff|Jeff]] ([[User talk:Jeff|talk]]) 17:55, 26 November 2012 (UTC)
:: Any news? No pressure, I'm just curious :) --[[User:Waldir|Waldir]] ([[User talk:Waldir|talk]]) 15:34, 30 November 2012 (UTC)
::: Bah - I keep forgetting when I get home. I'll try to get it done this weekend. --[[User:Jeff|Jeff]] ([[User talk:Jeff|talk]]) 17:35, 30 November 2012 (UTC)
:::: Much delayed, but {{done}} --[[User:Jeff|Jeff]] ([[User talk:Jeff|talk]]) 02:50, 4 December 2012 (UTC)
::::: Thanks, Jeff. I'll let you know if there's any further issues, but I believe everything should be working now. --[[User:Waldir|Waldir]] ([[User talk:Waldir|talk]]) 03:34, 4 December 2012 (UTC)

== Links to category pages ==

I couldn't help but notice the number of your edits to your page. You can link to category pages by putting a colon in front of "Category". <code><nowiki>[[:Category:Pages to delete]]</nowiki></code> produces [[:Category:Pages to delete]]. It also doesn't add the category to that page, it just links to it. Cheers, [[User:Lcarsos|lcarsos]]_a ([[User talk:Lcarsos|talk]]) 17:30, 30 November 2012 (UTC)
: Oh geez. You saw that? That's a little embarrassing with not knowing what to do, I kept trying to figure out how to put the link there. Thanks for the help! I couldn't find that information anywhere. --[[User:Jeff|Jeff]] ([[User talk:Jeff|talk]]) 17:31, 30 November 2012 (UTC)

::When I had to learn about that trick the edits on that page looked fairly similar. I eventually found the right page [http://www.mediawiki.org/wiki/Help:Links] (ctrl+f "category", it's buried) and managed it. I have the Recent Changes page set to auto-refresh every minute. I see a few things. [[User:Lcarsos|lcarsos]]_a ([[User talk:Lcarsos|talk]]) 17:43, 30 November 2012 (UTC)

== Your opinion? ==

Please comment [[explain xkcd:Community portal/Technical#We need more maintainers|here]]. Cheers, [[User:Waldir|Waldir]] ([[User talk:Waldir|talk]]) 17:21, 5 December 2012 (UTC)
:Update: we've been offered help by [[mediawiki:User:Dantman|an experienced MediaWiki developer]], I think we can finally solve the server-side issues now! Please take a look at the thread linked above. [[User:Waldir|Waldir]] ([[User talk:Waldir|talk]]) 20:07, 23 March 2013 (UTC)

== I am really dumb ==

and this morning, while creating a user name, I goofed it and wrote .mau, (with a trailing comma) instead of .mau. (with a trailing dot, which is my trademark). I know that a bureaucrat on MediaWiki can change a username which had few edits (my own edits are three including this one): could you do this, or at least delete this username so that I may recreate it without leaving a dead one? TIA, [[User:.mau,|.mau,]] ([[User talk:.mau,|talk]]) 15:09, 16 January 2013 (UTC)
:You can actually change your signature to .mau. if you want, to mask that for now. Just make a page called User:.mau,/sig and craft your signature to your liking, then go to my preferences at the top and set your sig to <nowiki>{{SUBST:User:.mau,/sig}}</nowiki>. If you want an example, [[User:Lcarsos/sig]] is a near-vanilla and quite clean example of a custom sig, while [[User:Omega/sig]] and my sig, [[User:Davidy22/sig]] are slightly more tricked-out options. Wikipedia's guidelines to signature crafting are {{w|Wikipedia:Signatures#Customizing_your_signature|here.}} '''[[User:Davidy22|Davidy22]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 15:53, 16 January 2013 (UTC)
::ok, thanks! [[User:.mau,|.mau.]] ([[User talk:.mau,|talk]]) 09:55, 17 January 2013 (UTC)
:::Aw, that's it? No bling or anything? Meeehhh. '''[[User:Davidy22|Davidy22]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 13:16, 17 January 2013 (UTC)
:(to Jeff) I believe user renaming is not possible in vanilla mediawiki. An extension is required: [[mw:Extension:Renameuser]] --[[User:Waldir|Waldir]] ([[User talk:Waldir|talk]]) 18:21, 17 January 2013 (UTC)
::I find a bit disturbing to have a "wrong" username, especially because I may not remember it somewhen (yes, the word does not exist, but I like its sound); but I don't need any flashy signature, so I just changed the traling comma to a dot. --[[User:.mau,|.mau.]] ([[User talk:.mau,|talk]]) 14:09, 18 January 2013 (UTC)

==/wiki/==
Now that the site apparently redirects to the wiki, could the entire wiki URL just be explainxkcd.com, without the trailing wiki? It's mostly for cleanliness, but also to throw off the spambots for a while. Those accursed spam happy bots. '''[[User:Davidy22|Davidy22]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 04:29, 4 February 2013 (UTC)
: Sounds good, I'm working on that part next. It is next on my "to-do" list complete some URL work like that. --[[User:Jeff|Jeff]] ([[User talk:Jeff|talk]]) 18:05, 4 February 2013 (UTC)
::''nag''. Also, the spam is becoming an issue. A pretty big issue. Time to switch captchas? '''[[User:Davidy22|Davidy22]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 13:04, 18 February 2013 (UTC)
::: OK - sounds good to me, any ones you recommend? --[[User:Jeff|Jeff]] ([[User talk:Jeff|talk]]) 13:33, 18 February 2013 (UTC)
:::: I don't remember which captcha the wiki uses, but I know securimage and recaptcha are two very competent options. Alternately, you could use [http://www.mediawiki.org/wiki/Extension:ConfirmEdit ConfirmEdit] to screen anon edits. Much of the spam seems to be automated, so questycaptcha should screen out most of the chaff. Just simple questions, like "What webcomic does this site explain" or "Who created XKCD" should be sufficient to screw up our current spammers. Also, rm /wiki/ plx. '''[[User:Davidy22|Davidy22]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 13:41, 18 February 2013 (UTC)
:::::Confirm edit is in and Recaptcha is out. Let's try that. --[[User:Jeff|Jeff]] ([[User talk:Jeff|talk]]) 14:11, 18 February 2013 (UTC)
::::::The questions appear to be case-sensitive. To avoid frustration, could you add a notice to every question saying that the answers have to be in all lower/upper case? I got "What's the name of this wiki" wrong a bunch of times, and I think it's due to capitalization. '''[[User:Davidy22|Davidy22]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 14:30, 18 February 2013 (UTC)
:::::::Ok - cool. I changed it to $wgSitename instead of just writing it out. --[[User:Jeff|Jeff]] ([[User talk:Jeff|talk]]) 14:32, 18 February 2013 (UTC)
::::::::If we get no spam tomorrow, I will hold a party in your talk page. Oh, and /wiki/. '''[[User:Davidy22|Davidy22]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 14:38, 18 February 2013 (UTC)
:::::::::I'll just hijack this thread and ask: Isn't it time Davidy22 got admin tools? It's long overdue. And please promote Lcarsos‏‎ to bureaucrat, so he can make new admins if needed. And seconded: <code>/wiki/</code> ! --[[User:Waldir|Waldir]] ([[User talk:Waldir|talk]]) 02:39, 19 February 2013 (UTC)
::::::::::Could you also put confirmEdit in general page creation for anonymous users? There's still a couple of spam pages being made that don't actually advertise anything. There hasn't been an account creation in a long time, so I think we've killed off the spam accounts. The rate of spam has definitely dropped significantly ever since we switched to confirmEdit. '''[[User:Davidy22|Davidy22]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 05:42, 20 February 2013 (UTC)
::::::::::We've just had a surge of pure griefer spam. Anons who don't insert any links, they're just throwing spam at us out of malice. Could you make anonymous users have to pass through confrimEdit to create pages? Thanks. On a side note, what's the ratio in terms of file size between current explanation pages to logs and diffs? '''[[User:Davidy22|Davidy²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 01:53, 22 February 2013 (UTC)
:::::::::::Wow those suck. Wiping out whole pages with anon edits. I can't change the settings from here, but I'll do it when I get home. Also, I'm not sure what you mean by filesize? --[[User:Jeff|Jeff]] ([[User talk:Jeff|talk]]) 15:51, 22 February 2013 (UTC)
::::::::::::Eh, how much space do explanations and images take up on your hard drive when compared to the space that log files and diffs take up? '''[[User:Davidy22|Davidy²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 16:01, 22 February 2013 (UTC)
:::::::::::::Click a thing, check out the URL. I be posting this here instead of DMs because somthing like this has been requested for a pretty long time. '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 01:55, 7 December 2013 (UTC)
::::::::::::: I'm confused. There's a lot going on in this thread. Want to break it out into its own header? --[[User:Jeff|Jeff]] ([[User talk:Jeff|talk]]) 16:48, 9 December 2013 (UTC)
::::::::::::::Mkay '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 19:47, 9 December 2013 (UTC)

== Promote Davidy22 ==

:''Breaking this discussion out from where it was, because it merits its own section. [[User:Lcarsos|lcarsos]]_a ([[User talk:Lcarsos|talk]])''
I'll just hijack this thread and ask: Isn't it time Davidy22 got admin tools? It's long overdue. And please promote lcarsos‏‎ to bureaucrat, so he can make new admins if needed. And seconded: <code>/wiki/</code> ! --[[User:Waldir|Waldir]] ([[User talk:Waldir|talk]]) 02:39, 19 February 2013 (UTC)

:'''Heartily Agree''' on promoting Davidy22, he's almost always more on top of spam patrol than I am these days (burn-out for the lose). I'm not sure I can speak for my own promotion without sounding self-serving and power-hungry. However, in my few spare moments this semester I am looking closely at getting a bot up and running to automate the clean up of spam (mostly because manual spam patrol is the most soul-sucking and disheartening activity I've ever done), so it would be nice to be able to get a bot account promoted to bot status without misrepresenting it as my account. [[User:Lcarsos|lcarsos]]_a ([[User talk:Lcarsos|talk]]) 18:13, 19 February 2013 (UTC)
:: Davidy22 is up to admin (honestly, I thought he was already one, so no issue there on my end.) and lcarsos has been updated to bureaucrat because we should have more redundancy there. Also, create a bot account and let me know what it is and i'll give it bot rights. --[[User:Jeff|Jeff]] ([[User talk:Jeff|talk]]) 18:36, 19 February 2013 (UTC)
:: Or now, you can do it! :) --[[User:Jeff|Jeff]] ([[User talk:Jeff|talk]]) 18:41, 19 February 2013 (UTC)
:::WOO, power! '''[[User:Davidy22|Davidy22]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 05:42, 20 February 2013 (UTC)

== Small ConfirmEdit change ==

Can you change the line:
<pre>$wgCaptchaTriggers['create'] = false;</pre>
to true? I think this would solve most of our bot vandalism/griefing problems. [[User:Lcarsos|lcarsos]]_a ([[User talk:Lcarsos|talk]]) 21:19, 22 February 2013 (UTC)
:: {{done}} I changed 'edit' to true as well since we've seen a bunch when editing user's talk pages. We will see if I have to move that back to false. --[[User:Jeff|Jeff]] ([[User talk:Jeff|talk]]) 16:16, 23 February 2013 (UTC)

== DeleteOldRevisions ==

There's a script built into mediawiki called DeleteOldRevisions.php that seems to have deprecated the deletehistory plugin. A link to the [http://www.mediawiki.org/wiki/Manual:DeleteOldRevisions.php manual page.] A hard drive upgrade would be apt for the future though. '''[[User:Davidy22|{{Color|purple|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 00:15, 20 March 2013 (UTC)
: I'm looking into it. I'm not sure how the wiki got back up and running without me running the update. I'll try the [http://www.mediawiki.org/wiki/Extension:DeleteHistory] and see if that can help in the meantime. The expanded HD might be a no-go, but I'll see on that too. --[[User:Jeff|Jeff]] ([[User talk:Jeff|talk]]) 01:27, 20 March 2013 (UTC)

==Server Hardware==
The website is getting really slow and throwing internal errors all over the place, and it looks like both the main page and the page for the newest comic [[1190: Time]] are climbing rapidly in views. If one ambiguous comic is hitting us like a DDoS, we're going to get it in the shorts if Randall ever actually acknowledges our existence directly, or some other geeky media outlet posts a link to us. Is there a donate button anywhere? '''[[User:Davidy22|{{Color|purple|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 05:18, 25 March 2013 (UTC)
: We certainly can get a Donate button. We may need to migrate the server to get it upgraded. This is one of those big days, I guess. --[[User:Jeff|Jeff]] ([[User talk:Jeff|talk]]) 12:39, 25 March 2013 (UTC)
:: How about a Kickstarter or Indiegogo campaign? --[[User:Waldir|Waldir]] ([[User talk:Waldir|talk]]) 12:37, 26 March 2013 (UTC)
:::Kickstarter and Indiegogo are one-time things. No good for this. I recommend modifying the donate button so that there is a PayPal "Subscribe" button near it so people can also do small monthly subscriptions. I recommend a dropdown with $1, $2, $5, $10, $20 options.
:::Does 1&1 give you stats like how much bandwidth (or rather how much data) you are using. That could have an effect on where is best to get the new hosting; Rackspace Cloud, Linode, AWS, or even a real server with access to other network options like paying for actual Mbps bandwidth with unlimited data.
:::When you get a server I'd like to properly set it up with varnish, nginx, apc (or Zend_Optimizer+ considering it's going to be part of php 5.5), memcached, and perhaps php-fpm instead of mod_php. Varnish will allow anonymous pages to be cached hopefully reducing the load issues. And nginx should serve out static things better than Apache. [[User:Dantman|Dantman]] ([[User talk:Dantman|talk]]) 05:23, 27 March 2013 (UTC)
:::: Regarding the Paypal button, besides the subscribe option, I would recommend removing the credit card logos, as they make it too wide for the sidebar and not fit the design well. Besides, I personally think they give it kind of a corporate feel; instead, a simple "donate" button, while still recognizable as paypal's, feels simpler and more "personal", for lack of a better word.
:::: Also, I think you should place it above the AdSense block, since that makes it more visible, and prioritizes a form of supporting the site that people have direct, active control over, rather than the passive, choice-less (modulo AdBlock) AdSense.
:::: And also capitalize "donate" in the section title, to match the other titles ("Navigation", "Toolbox", etc.)
:::: Since we're at it: maybe more donation options would make sense: [//flattr.com Flattr], [//gittip.com Gittip], [//tiptheweb.org/ TipTheWeb], and possibly [//bitcoin.org/ Bitcoins].
:::: Finally, is it possible to make the AdSense background transparent, or at least the same as the site background of #F3F3F3? --[[User:Waldir|Waldir]] ([[User talk:Waldir|talk]]) 14:15, 27 March 2013 (UTC)
:::::Is it possible to add the ad and donate buttons without including a section title? Minimizing unused space is gooood. Also, I noticed that you installed the deletehistory plugin, but it's trying to use another version of PHP that's installed on the server. deleteoldrevisions.php in the maintenance folder oughta work fine, though it'd probably be apt to run it over the weekend when we're not expecting absurd floods of visitors like we are now. We may need it too, after we've filled up the hard drive again with archives of Time.'''[[User:Davidy22|{{Color|purple|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 14:39, 27 March 2013 (UTC)
:::::: Yes, it is possible for me to edit, I will have to go into the settings for each since I used extensions for them. I hate the credit card things too. Will take a look at all options tonight.
:::::: The Deletehistory plugin doesn't work, sadly because of the PHP version. Hopefully, when we migrate, it will be on a newer version and that will work. Hopefully, we will have more disk space too... --[[User:Jeff|Jeff]] ([[User talk:Jeff|talk]])
::::: Hey Jeff. Could you change the width of the paypal donate button so that it matches the google ads and the bitcoin donate button? Maybe using a custom button rather than the paypal-provided one?
::::: Also, any news regarding the possibility of changing the background of the google ads? --[[User:Waldir|Waldir]] ([[User talk:Waldir|talk]]) 17:21, 8 April 2013 (UTC)
:::::: It did not work out with Google ads for a reason they will not disclose to me, but I'll work on the buttons and the banner ad. --[[User:Jeff|Jeff]] ([[User talk:Jeff|talk]]) 16:11, 9 April 2013 (UTC)

== Everything's good ==

Except for the (currently) occasional server error, I have no problems.

I've turned on HotCat and Popups, imported wikEdDiff and my HideTopContribs, all of which make me fairly efficient at watching changes.

A minor request would be the Redirect toolbar button.

[[User:Markhurd|Mark Hurd]] ([[User talk:Markhurd|talk]]) 17:13, 19 April 2013 (UTC)

:When you turn off enwiki's "Enable enhanced editing toolbar" all of the toolbar buttons explainxkcd has are in the same order (it skips Math) and the very next one is Redirect #R. It seems to be defined at http://en.wikipedia.org/w/index.php?title=MediaWiki:Common.js/edit.js&action=edit
:I've tried adding just Redirect #R myself [[User:Markhurd/common.js|here]], but something's going wrong. (And I should be sleeping!)
::Seeing as it is only one button I wanted, I simplified the code down to calling addButton directly and it is now working fine. [[User:Markhurd|Mark Hurd]] ([[User talk:Markhurd|talk]]) 13:07, 20 April 2013 (UTC)

:Re being an Admin: Yes, please, as long as you note this would be my first actual Admin bit. (I'm a Bureaucrat on another MW wiki so I could give myself Admin rights whenever I wanted.) [[User:Markhurd|Mark Hurd]] ([[User talk:Markhurd|talk]]) 19:39, 19 April 2013 (UTC)

== Sidebar ads ==

Hi, we're having a discussion about the sidebar ads on [[Talk:Main Page#sidebar ads?]]. --[[User:St.nerol|St.nerol]] ([[User talk:St.nerol|talk]]) 08:42, 24 April 2013 (UTC)

== Economic transparency ==

Hi! I made a request on economic transparency on the proposals page. –[[User:St.nerol|St.nerol]] ([[User talk:St.nerol|talk]]) 22:05, 27 May 2013 (UTC)

==Thumbnails are not working==
I'm relatively new here but I think each picture should get it's proper thumbnail when the original is to large to embed. Mediawiki is using some applications in the background maybe not available here. But there are some workarounds. And since "onlinehome.us" is well secured I still do even not know what OS is running in the background. But whatever the OS is, it should be solvable.--[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 18:13, 8 June 2013 (UTC)

== Last missing page ==

Hi, I'm hoping you don't mind about my adds to Natalie Dee. I was working on that at the same time.
BTW: Can I help you on that thumbnail issue? I really would be happy if it could fixed here.--[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 21:42, 18 June 2013 (UTC)
:: No problem on the Natalee Dee comic, I was just working on it because it was the last one, edit away. What's the thumbnail issue? --[[User:Jeff|Jeff]] ([[User talk:Jeff|talk]]) 21:43, 18 June 2013 (UTC)
:::Thanks for your reply. I am still talking about this: [http://www.mediawiki.org/wiki/Manual:Errors_and_symptoms#Image_Thumbnails_not_working_and.2For_appearing Image_Thumbnails_not_working]. I am sure there is a need to fix the [http://www.mediawiki.org/wiki/LocalSettings.php LocalSettings.php]. Maybe some paths are wrong or it's just using wrong image tools. I can help on any OS except Apple computers.--[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 22:07, 18 June 2013 (UTC)

== Congratulations! ==

You just created the last unexplained comic of ''xkcd''! [[User:Greyson|Greyson]] ([[User talk:Greyson|talk]]) 23:38, 18 June 2013 (UTC)
: Thanks Greyson! --[[User:Jeff|Jeff]] ([[User talk:Jeff|talk]]) 03:04, 19 June 2013 (UTC)

==Math==
A lot of comics have formulae in them. Could you set $wgUseTeX = true in LocalSettings.php? That lets us use latex in pages. It'd be useful for comics like yesterday's. '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 09:12, 11 July 2013 (UTC)
:Yeah, this would be nice. But you have to install an extension, LaTex must be available, then compile something, and at least adjusting the LocalSettings.php config file. We also sill do not have all image features here. But I can help, Windows or Linux.--[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 13:55, 11 July 2013 (UTC)
:: I'll look into it. Let me know if you find an extension that will do the trick. Send me some links to anything that would help and I can get them set up. --[[User:Jeff|Jeff]] ([[User talk:Jeff|talk]]) 14:44, 11 July 2013 (UTC)
:::Go here [http://www.mediawiki.org/wiki/Extension:Math Extension:Math] and read the installation instructions first, it's not easy. For Fedora (Linux) there is a package called "mediawiki-math.x86_64" available. I will test this at my own computer.--[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 15:57, 11 July 2013 (UTC)
::::It's the hell, but I got a first crappy version at my local installation. I have had to install ''latex'' and ''ocaml'' packages and now its working, but it still renders many lines before the <nowiki><math></nowiki> tag, So it's still not usable for this site.--[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 14:35, 13 July 2013 (UTC)
===Seeing injected banner ads?===
I'm seeing banner ads (viewing on my iPad) that cover the actual banner of the site and never scroll out of view. It's as if they've been infected by a downstream server (ISP?). Anybody else? I'm in Wisconsin using TDS. Jeff M.
: That's terrible, I've got to fix that. bah. --[[User:Jeff|Jeff]] ([[User talk:Jeff|talk]]) 18:36, 2 August 2013 (UTC)
:: Is there a place I can email some screenshots? Jeff M.{{unsigned ip|69.130.242.120}}

== Full cache kills this page ==

Hi, it seems this page was not reachable for 15 hours again. The cache here has to be cleared sometimes, but since I can do it with my account I will create a script running once per day. 15 hours outage are bad, I try to avoid this in the future. --[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 15:50, 3 October 2013 (UTC)
:Which page was dead? --[[User:Jeff|Jeff]] ([[User talk:Jeff|talk]]) 16:11, 3 October 2013 (UTC)
::The entire site was dead. Look here: [[Special:RecentChanges|Special:RecentChanges]]. My last post was at 23:44 yesterday, no actions here after my reset at 14:54 today. The site was dead. I'm not a hacker, but I'm a programmer and I used this base of knowledge to fix this problem. If you do need more details, please send me an email. --[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 18:25, 3 October 2013 (UTC)
::: Agreed. Tried to visit yesterday PM, but a lot of pages were spilling guts: user pages, category pages, no comic explanations (as far as I could tell with my limited browsing.) A chron-job script to keep that at bay would be good medicine, assuming it didn't have other side effects. [[User:IronyChef|IronyChef]] ([[User talk:IronyChef|talk]]) 03:19, 4 October 2013 (UTC)
I will set up a cron job running once per day. Maybe this entry at the config file [https://www.mediawiki.org/wiki/Manual:LocalSettings.php LocalSettings.php] would be the better solution:
$wgMainCacheType = CACHE_NONE;
I'm using the MidnightCommander (Linux) for editing this file.--[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 12:11, 4 October 2013 (UTC)
:::: Cache_None is already set in the LocalSettings. I believe this is usually a database error that we are getting. It usually resolves itself as I'm not able to resolve it myself. I believe that we are getting hit with a brute force attack at our database during those times because the database is totally unreachable. I'm working on moving to a new host where the database will be better protected. --[[User:Jeff|Jeff]] ([[User talk:Jeff|talk]]) 12:16, 4 October 2013 (UTC)
:::::Cache_None or CACHE_NONE? This should be case sensitive. Nevertheless I did purge the cache and the site was instantly available again (after approx. 15 hours). Also Davidy22 explained that he did clear the cache to bring the site back. The error messages are misleading and not showing the real problem.--[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 12:43, 4 October 2013 (UTC)
:::::: Yes, CACHE_NONE, sorry, I was typing fast. I've ran my clear cache script a few times when I've had that same problem and haven't seen results, so I'm glad we at least have something that's working. --[[User:Jeff|Jeff]] ([[User talk:Jeff|talk]]) 15:18, 4 October 2013 (UTC)
:::::::You are doing a great job, I feel I just have to say thanks! When the next outage does happen I will activate a small script, but for now I just try to avoid unnecessary traffic to this server.--[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 16:15, 4 October 2013 (UTC)
:::::::: Thanks Dgbrt! --[[User:Jeff|Jeff]] ([[User talk:Jeff|talk]]) 18:07, 4 October 2013 (UTC)

== New host ==

Great job, but please check this link: <code>/wiki/</code>. I can browse the entire folder and more. It seems that "htaccess" should be renamed to ".htaccess".--[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 08:32, 30 October 2013 (UTC)
: Oh geez. That's bad. Thanks! --[[User:Jeff|Jeff]] ([[User talk:Jeff|talk]]) 12:02, 30 October 2013 (UTC)
:: Should be good now. --[[User:Jeff|Jeff]] ([[User talk:Jeff|talk]]) 16:45, 30 October 2013 (UTC)

I found an other serious issue belonging to DNS entries:
Name: explainxkcd.com
Address: 108.162.198.131
Name: explainxkcd.com
Address: 108.162.199.131
This works fine because 108.162.'''198'''.131 is correct. But most DNS servers showing up with this result:
Name: explainxkcd.com
Address: 108.162.199.131
Name: explainxkcd.com
Address: 108.162.198.131
This just leads to the old server at 108.162.'''199'''.131. Check Google DNS server 8.8.8.8 with nslookup, the wrong IP is shown first.
--[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 19:34, 30 October 2013 (UTC)
: Weird... I'll research. --[[User:Jeff|Jeff]] ([[User talk:Jeff|talk]]) 19:35, 30 October 2013 (UTC)
::Yes, it's weird. After I discovered this I did enter an entry for this at my local "/etc/hosts" file. But it seems most people can not access the new site.--[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 20:20, 30 October 2013 (UTC)
::One more: The logo on the left top is broken. ''style="background-image: url(/wiki/skins/common/images/explainxkcd.png)'' does not exist.--[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 20:53, 30 October 2013 (UTC)
::: Yea, what happened to that logo... it was there this morning. --[[User:Jeff|Jeff]] ([[User talk:Jeff|talk]]) 20:56, 30 October 2013 (UTC)
::::Oh, after a computer crash I'm back. Right now even the editor is broken here. I don't know if I can send this message. --[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 21:22, 30 October 2013 (UTC)
:::::Ok, it does work, but all images for short cuts on top of the editor are also broken now. --[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 21:26, 30 October 2013 (UTC)
:::::: The editor works fine for me, I'll research the images. --[[User:Jeff|Jeff]] ([[User talk:Jeff|talk]]) 21:27, 30 October 2013 (UTC)
:::::::It seems all links like "/wiki/skins/common/images/button_bold.png" are gone. Additionally I'm getting an JavaScript error "TypeError: document.getElementById(...) is null". http://www.explainxkcd.com/wiki/skins/common/images/button_bold.png redirects me to http://www.explainxkcd.com/wiki/index.php?title=Main_Page. Maybe you still get some content, maybe cache, from 108.162.199.131? Or is the real site now on that IP? Remember, I have had to restart my computer; most of my cache is gone and I'm just seeing the real page.--[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 21:48, 30 October 2013 (UTC)
:::::::: I fixed the images. I did that stupidly through the htaccess page. I've got to figure a better solution for what I'm trying to do to solve another problem. --[[User:Jeff|Jeff]] ([[User talk:Jeff|talk]]) 21:58, 30 October 2013 (UTC)
:::::::::Looks great right now. So that DNS glitch seems to be the most worse problem right now.--[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 22:08, 30 October 2013 (UTC)
:::::::::: I think DNS is still propagating with the updates from yesterday. Not every one has the correct information yet... those two DNS IPs are the load balancers, I believe. --[[User:Jeff|Jeff]] ([[User talk:Jeff|talk]]) 22:09, 30 October 2013 (UTC)
:::::::::::Strange "load balancers", but it's working now on both IPs. Many thanks again for your hard work, you must have invested many hours on this migration. Let's see tomorrow if other users will be able to find this site again.--[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 22:30, 30 October 2013 (UTC)

== Please remove subaddressing from my account email [[user:tbc]] ==

Hi Jeff,

I requested a password reset, but I forgot that my account still has an old email registered: timc+explainxkcd@divide.net. My ISP, pcisys.net née divide.net, disabled subaddressing during an email upgrade earlier this year. If you will update that email to remove the plus sign so my account email is timc@divide.net, I will be able to reset my password. I was logged in from my iPad to write on the [[explain_xkcd:Community_portal/Admin_requests#Please_remove_subaddressing_from_my_account_email_user:tbc|community portal]] page, but since I needed my password, which I have forgotten, to change it, I got stuck. – ''[[User:Tbc|tbc]] ([[User talk:Tbc|talk]]) 30 Oct 2013''
: You should be good to go now. --[[User:Jeff|Jeff]] ([[User talk:Jeff|talk]]) 16:07, 31 October 2013 (UTC)
:: I am. Thank you! – ''[[User:Tbc|tbc]] ([[User talk:Tbc|talk]]) 05:32, 8 November 2013 (UTC)''

== Forbidden ==

You don't have permission to access /wiki/ ([http://www.explainxkcd.com/wiki/ http://www.explainxkcd.com/wiki/]) on this server. I think a simple redirect would be a better solution.--[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 23:45, 4 November 2013 (UTC)
: Yup, that's on my list to work on. If you are knowledgable about htaccess files, feel free to send me an email. --[[User:Jeff|Jeff]] ([[User talk:Jeff|talk]]) 13:48, 5 November 2013 (UTC)
::The first great point is: The error doesn't show the server, version, etc... A hacker can't figure what exploits are available.
::At my local test installation (Apache, Linux) it's covered by the general server configuration. And each folder simply does contain a proper "index.php" file from mediawiki doing the correct redirects.--[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 20:19, 5 November 2013 (UTC)
::: Fixed. --[[User:Jeff|Jeff]] ([[User talk:Jeff|talk]]) 16:02, 21 November 2013 (UTC)
::::Great job, thanks.--[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 22:18, 21 November 2013 (UTC)

== Re: the latest puzzle ==

I don't know how to contribute in the discussion section on the page, so I'm throwing ideas at you.

Just quick thoughts.
I feel like Cpl klinger and the water type kingler is too solid a connection to ignore even though I can't really use it.
Kingler was owned in the series by Ash.
Ash is a three letter word and the last three letters of the phrase monstermash.
Monsterm=8 letters so the first block ash=3 letters in the second block.
Monsterm is about the monster.com thing, therefore purloined. It's a double reference, the .co has been purloined from the purloined website.
Then blastoise -3, or rather blastois3 - 3 (mocking the common password meme of replacing letters with numbers)
So the last password, which is super hard to guess and well chosen even with the clue is, blastoisash? It's a feasibly memorable password that would not be quickly forgotten by a pokemon fan while still being hard to guess.
Can you think of a way to check it? Maybe go into the old command line xkcd and try it as a password?

==URLs==
I made them marginally shorter. Can you spot the difference? '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 19:47, 9 December 2013 (UTC)
: Uh, I can't. Does that make me a bad person? --[[User:Jeff|Jeff]] ([[User talk:Jeff|talk]]) 22:17, 9 December 2013 (UTC)
::If you go to any page, you should see that it says index.php/<page name> instead of index.php?title=<page name>. Small change, I'm trying to kill the index.php bit too, but I think I suck at regexes. '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 22:31, 9 December 2013 (UTC)
::: Regexes are the WORST --[[User:Jeff|Jeff]] ([[User talk:Jeff|talk]]) 22:45, 9 December 2013 (UTC)
::::Regexes are great, but they are hard to implement for a specific solution. But Goooogle helps. And a question to Davidy22: Why you do not present your enhancement here? --[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 23:10, 9 December 2013 (UTC)
:::::I set $wgUsePathInfo to true in mediawiki settings, and here's our lines for redirecting URLs in general:

RewriteCond %{REQUEST_URI} !(\.png|\.jpg|\.gif)$ [NC]
# RewriteRule ^/wiki(/.*)$ %{DOCUMENT_ROOT}/wiki/index.php$1 [L]

:::::Followed and preceded by htaccess commands that do other things. The broken line is commented out because it doesn't work. '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 23:32, 9 December 2013 (UTC)
::::::Uhh, it seems I still do not understand the secret. [http://www.xkcd.com/1301] to [http://www.explainxkcd.com/1301] works fine for me, but I do not understand that [NC] here so far:
:::::::RewriteCond %{REQUEST_URI} !(\.png|\.jpg|\.gif)$ [NC]
::::::maybe
:::::::RewriteCond %{REQUEST_URI} !(\.png|\.jpg|\.gif)$[NC]
::::::is better. But this means every request not matching those three image extensions would fit that rewrite rule. This is just haaardly regex. The second line is just a comment you probably did remove. I can't see the rewrite rule. And testing for a simple number x, xx, xyz, or xyzz would be better.--[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 00:23, 10 December 2013 (UTC)
::::::::That's an entirely different rewriterule that does actually work and was deployed long ago that I didn't print here. I'm talking about a general-purpose rewrite that redirects from explainxkcd.com/wiki/<page name>, which I attempted to create in the commented-out line. The image exclusion is to stop image display requests from also being redirected, and I don't think you quite get how rewrite rules work. Not *every* page is fitted to every rewrite rule; the first half of the rule describes the conditions in which the rule should be applied. And yeah, just plugging in page names works, but I kinda don't want to hard-code every possible page redirect into our htaccess file. That's what the regex is for. '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 00:51, 10 December 2013 (UTC)

== /r/xkcd sitenotice ==

Could you please remove the sitenotice linking to and promoting /r/xkcd? [[User:Davidy22|Davidy22]] added it to the sitenotice and cross-posted to reddit. Unfortunately, h/r/xkcd sub is controlled by /u/soccer, who links to racist, xenophobic and misogynistic content regularly. [http://www.reddit.com/r/anonymous123421/comments/1w8aie/petition_to_reinstate_uwyboth_as_a_mod_of_rxkcd/cezp63m Randall has spoken in support] of a petition for /u/soccer to be removed as a mod. /r/xkcdcomic is a non-hateful alternative, one that Randall supports, and it has more users than /r/xkcd.

I did comment on Davidy22's talk page, but I thought I should drop you a line as well. Thanks, [[User:LadyMondegreen|LadyMondegreen]] ([[User talk:LadyMondegreen|talk]]) 13:55, 2 May 2014 (UTC)
: Hi LadyMondegreen did he change it already? I didn't touch it yet, but it shows /r/xkcdcomic for me. I agree with you completely and I'm sorry if we linked to the wrong subreddit, even momentarily. --[[User:Jeff|Jeff]] ([[User talk:Jeff|talk]]) 14:50, 2 May 2014 (UTC)
::It never linked to /r/xkcd. I think LadyMondegreen misread it or something. '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 01:41, 3 May 2014 (UTC)
:::Yeah, that was my bad. Someone pointed it out to me on IRC and I guess I didn't look closely enough. Sorry about that. [[User:LadyMondegreen|LadyMondegreen]] ([[User talk:LadyMondegreen|talk]]) 19:36, 6 May 2014 (UTC)

== MediaWiki question ==

Out of curiosity, do you ever have a plan to add other skin options, like Monobook? [[User:Schiffy|Schiffy]] ([[User_talk:Schiffy|Speak to me]]|[[Special:Contributions/Schiffy|What I've done]]) 21:40, 31 July 2014 (UTC)
:A fair number of other skins were cut because they broke our sidebar, and others were cut cuz they were ugly and no one used them. If there's demand for them, they could be brought back though; you just want Monobook? '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 18:06, 2 August 2014 (UTC)
::Mainly, yes. From a personal standpoint, I find Vector fairly ugly. CologneBlue and Modern aren't much better. Monobook is my preferred alternative. I can't speak for majority of users on explainxkcd, but I do know there are a number of people who prefer Monobook to other skins. [[User:Schiffy|Schiffy]] ([[User_talk:Schiffy|Speak to me]]|[[Special:Contributions/Schiffy|What I've done]]) 21:56, 3 August 2014 (UTC)
:::Fair enough. Monobook is back. Tell me if anything is wonky with our customisations, and I'll fix it.'''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 01:56, 4 August 2014 (UTC)

== IP Address glitch ==

There appears to be a problem with the way that this site fetches users IP addresses! My IP address, as confirmed by whatismyip.com and other wikis, is 24.15.68.186! However, this site believes it to be 108.162.237.130! When I look up the incorrect IP address, it appears to be registered to CloudFlare. Is there anything you can do to resolve the situation? I don't want to get confused with a spambot and accidentally blocked! Thank you! [[User:The Wikiator|The Wikiator]] ([[User talk:The Wikiator|talk]]) 00:26, 19 April 2016 (UTC)
:This is a [[explain xkcd:Community portal/Technical#Wrong IP address shown|known issue]]. [[User:Markhurd|Mark Hurd]] ([[User talk:Markhurd|talk]]) 11:06, 19 April 2016 (UTC)

== Crash ==

Cool, I was worried for a bit that Explain Xkcd was down. By the way, I found the URL for a [http://c.xkcd.com/random/comic random comic] and a [http://www.explainxkcd.com/wiki/index.php/Special:Random random explained comic]. [[User:SilverMagpie|SilverMagpie]] ([[User talk:SilverMagpie|talk]]) 16:48, 12 May 2017 (UTC)

== A problem with a thing ==

Hi, I'm a new user on this site, and for some reason I can't make my own user page because I don't have permission. Plz help me!

[[User:Timeflow X|Timeflow X]] ([[User talk:Timeflow X|talk]]) 10:52, 21 June 2017 (UTC)

: Weird - it works for me. I edited your user page, see if you can edit it now that its created? --[[User:Jeff|Jeff]] ([[User talk:Jeff|talk]]) 12:44, 21 June 2017 (UTC)

== LocalSettings.php ==

Please set "$wgUseInstantCommons = true;" in LocalSettings.php. We have still pictures with red links here. --[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 15:39, 22 July 2017 (UTC)
: Done --[[User:Jeff|Jeff]] ([[User talk:Jeff|talk]]) 00:40, 26 July 2017 (UTC)
::Thanks, but it's not working as expected: [[File:Button sig.png]]. It should show this picture: [https://commons.wikimedia.org/wiki/File:Button_sig.png https://commons.wikimedia.org/wiki/File:Button_sig.png].--[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 14:44, 26 July 2017 (UTC)
::: Ok, I'll take a look again when I can, is there anything else I need to do? Like add an extension? --[[User:Jeff|Jeff]] ([[User talk:Jeff|talk]]) 02:32, 1 August 2017 (UTC)
::::Are we on MediaWiki version 1.16 or later? If not "$wgForeignFileRepos" would be the solution. But if the version is ok it's probably an https related problem: [https://www.mediawiki.org/wiki/InstantCommons#HTTPS InstantCommons#HTTPS]. Maybe this helps.--[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 12:39, 1 August 2017 (UTC)
:::::'''Solved.''' As you can see above. I've had to update the ca-certificate package. --[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 23:56, 25 May 2018 (UTC)

== Email coming from a non-existent domain ==

The "confirm email" button sends email from "expla0@vps.explainxkcd.com". The vps.explainxkcd.com domain doesn't exist (according to CloudFlare's DNS servers). Some email servers (including sendmail's default configuration; see https://www.sendmail.org/~ca/email/doc8.12/cf/m4/features.html#accept_unresolvable_domains) will reject such emails. I haven't tested password recovery emails, but I wouldn't be surprised if the same problem exists there too. In my case, I've added "vps.explainxkcd.com" to my access database, but whom should I talk to about fixing the sent email? [[User:Piquan|Piquan]] ([[User talk:Piquan|talk]]) 02:44, 11 February 2018 (UTC)
: The emails that I get when someone edits my talk page are: explain@explainxkcd.com and both settings in the localsettings.php are set to:$wgEmergencyContact = "explain@explainxkcd.com";$wgPasswordSender = "explain@explainxkcd.com"; but there might be a third one that catches those types of emails so I added $wgNoReplyAddress = "explain@explainxkcd.com"; Let me know if that fixes it. --[[User:Jeff|Jeff]] ([[User talk:Jeff|talk]]) 02:58, 13 April 2018 (UTC)
::I've send you an email from here: [[:Special:EmailUser/Jeff]]. I also requested a copy to me and that was more than two hours ago. But nothing happened and I'm sure you also didn't receive a mail. By having access to the log-files I'm sure I would figure out the problem. BTW: My last mail from here was in February. --[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 14:55, 13 April 2018 (UTC)
Ok, problem partly solved; my mails went into the Spam folder eventually meaning no notification to me. The reason is in fact what [[User:Piquan|Piquan]] has told in the initial comment. The mails are delivered via a mail server "vps.explainxkcd.com with local (Exim 4.80.1)" (belonging to Lunar Pages/Cloudflare) while the MX entry for explainxkcd.com is "mail.explainxkcd.com". There are two possible solutions, but the first is highly recommended:
*Lunar Pages/Cloudflare have to change the rewriting rules at their Exim message transfer agent to an existing domain name. This would be in this case "mail.explainxkcd.com".
*The name "vps.explainxkcd.com" must resolve to the IP 67.210.100.50 (we must hope that will not change in the future) AND there must be a second MX entry in the name registry for "explainxkcd.com" to "vps.explainxkcd.com". But I predict this would cause new problems in the future.
The FROM line in the mail header (e.g. From: Dgbrt <my.name@mail.com> or something like <explain@explainxkcd.com>) is irrelevant because only the message agents needs a proper configuration. My former mail servers also rejected those corrupt mails; google mail just puts it into a spam folder. --[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 18:43, 13 April 2018 (UTC)

== ReCaptcha v1 is going away ==

As I was posting an earlier comment, the reCAPTCHA told me:
"V1 UNSUPPORTED - Please direct siteowner to g.co/recaptcha/upgrade". (I typed "V1 UNSUPPORTED" in the box and it worked.) It looks like the reCAPTCHA that's currently being used by the wiki is sunsetting on 31 March 2018 (in a month and a half, as of this writing), and so they're currently sending a small percentage of requests that notice instead of a CAPTCHA challenge. Thought I'd let you know. [[User:Piquan|Piquan]] ([[User talk:Piquan|talk]]) 02:55, 11 February 2018 (UTC)

Someone else has already mentioned that in the admin forum, but no one replied. I really think we should create a new forum for requests like that, as not many people visit that forum now. And at the time of this comment the CAPTCHA has expired. [[User:Herobrine|Herobrine]] ([[User talk:Herobrine|talk]]) 07:40, 8 April 2018 (UTC)
: That's on me, I'm working on it. --[[User:Jeff|Jeff]] ([[User talk:Jeff|talk]]) 12:03, 12 April 2018 (UTC)
::That's great, please also fix the email issue (section above). --[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 12:15, 12 April 2018 (UTC)

Please reactivate the corrupt captcha or disable IPs from editing. We already have vandalism (see history at [[1031]])! --[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 14:58, 12 April 2018 (UTC)
: Well, that was stupid. It's back on now. I'm going to fix it, but I can't fix it right now so I'll leave the broken one on. --[[User:Jeff|Jeff]] ([[User talk:Jeff|talk]]) 15:20, 12 April 2018 (UTC)
::Thanks, a day or one more are not a problem yet. But maybe you should change the Sitenotice on top so that others can see that work is in progress. Nevertheless I would talk to you about some general issues here, so when you have time please contact me on my talk page. Maybe you remember that I've had a test-wiki at home to test my BOT. --[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 15:58, 12 April 2018 (UTC)

== A Couple of Issues ==

1. Google seems to have changed something in AdSense again, and the ads have been appearing in random positions again since December, 2019. [https://wpadvancedads.com/adsense-in-random-positions-auto-ads/ This page] might have a solution? It's been quite a while, and the ads are still broken.
2. New site called xkcd.wtf is blatantly stealing/scraping explanations from our site and posting it with a new theme. Not sure if it's a mirror or just Ctrl+C Ctrl+V. Is this even legal? [[User:Herobrine|Herobrine]] ([[User talk:Herobrine|talk]]) 09:32, 4 April 2020 (UTC)
: Google keeps killing me with these. I'll see what I can do. Not sure about the page copying. --[[User:Jeff|Jeff]] ([[User talk:Jeff|talk]]) 16:32, 5 February 2021 (UTC)
:: looks like xkcd.wtf at least links to us and references us at the bottom since all of our stuff is CC licensed. Pretty friendly all things concerned. --[[User:Jeff|Jeff]] ([[User talk:Jeff|talk]]) 16:54, 5 February 2021 (UTC)

== Randall's NYT Columns ==
Hi, In June I posted a proposal on the community portal ([[explain_xkcd:Community_portal/Proposals#New_page_for_Randall.27s_regular_column_in_the_New_York_Times |New page for Randall's regular column in the NY Times]]) and I was sort of hoping to get feedback. The proposal does include a script for the page.

I'm not sure where the page would go or be linked from, but it would be similar to our page about [[whatif|what if?]]. Perhaps the see also sections of the [[Randall Munroe]] page and the [[xkcd]] page.

BTW Jeff, our own links to our [[whatif|what if?]] page don't work, because the page name ends with a question mark, which messes up the browser (or maybe the Wiki software). The link I gave in the previous sentence does work, but when you get to the page and ask for what links here, that fails. ([https://www.explainxkcd.com/wiki/index.php/Special:WhatLinksHere?target=what_if%3F&namespace%3D This, however] does work as an external link.) Probably need to rename the page to not include a question mark. But anyway. [[User:JohnB|JohnB]] ([[User talk:JohnB|talk]]) 16:54, 7 July 2020 (UTC)
:Every mod has LANCBed (leave and never come back). Nothing can be fixed. — [[User:Sqrt-1|The 𝗦𝗾𝗿𝘁-𝟭]] [[User talk:Sqrt-1|talk]] [[Special:Contributions/Sqrt-1|stalk]] 14:25, 18 January 2021 (UTC)
::SlashMe is still active, but he doesn't have server access. I think Dgbrt has server access as well, and I left a comment on his talk page in the hopes that he'll reply (but he hasn't been active in a while). [[User:Herobrine|Herobrine]] ([[User talk:Herobrine|talk]]) 02:16, 5 February 2021 (UTC)
::: Sorry guys. I'm here. I can take a look at this for you. --[[User:Jeff|Jeff]] ([[User talk:Jeff|talk]]) 16:32, 5 February 2021 (UTC)
:::: Keep commenting here guys, because this notifies me. Life is nuts right now so my time is crazy. Send anything you need done. --[[User:Jeff|Jeff]] ([[User talk:Jeff|talk]]) 16:40, 5 February 2021 (UTC)
::::: Thanks so much Jeff, this is very appreciated! Re: the "what if" errors, if it's at all helpful:
:::::: * The "<code>No input file specified</code>" error seems to happen for pages that end in question marks or have special characters like "é" in their name. A list of such pages is [[explain xkcd:Community portal/Technical#Known broken pages|here]].
:::::: * A possible solution is mentioned [[mw:Manual talk:Short URL/Page title -- Windows & Apache without 403 on Special Pages|here]] in the MediaWiki manual talk pages, involving [https://www.php.net/manual/en/ini.core.php#ini.cgi.force-redirect CGI settings in php.ini] (for IIS) or [https://httpd.apache.org/docs/current/mod/mod_rewrite.html#rewriterule mod_rewrite settings in .htaccess] (for Apache). (Not sure if that's valid, or if there are any security/stability side-effects/consequences of that.)
:::::: * As a workaround in the meantime, [[User:Sqrt-1]] has moved/renamed the "[[what if?]]" page to "[[what if]]" to make it easier to get to.
:::::: * (If you're interested, there's a whole section about it in the Technical community portal [[explain xkcd:Community portal/Technical#Unable to view "what if?" page|here]].)
::::: – [[User:Yfmcpxpj|Yfmcpxpj]] ([[User talk:Yfmcpxpj|talk]]) 17:41, 5 February 2021 (UTC)

: Re: Randall's New York Times columns, just a note that [[User:JohnB]] has created a page for this at [[New York Times: Good Question]]. – [[User:Yfmcpxpj|Yfmcpxpj]] ([[User talk:Yfmcpxpj|talk]]) 17:41, 5 February 2021 (UTC)

== Main page ==

Hi!

You might have accidentally vandalized the main page.

https://www.explainxkcd.com/wiki/index.php?title=Main_Page&type=revision&diff=205838&oldid=158337

--[[Special:Contributions/162.158.238.8|162.158.238.8]] 20:28, 5 February 2021 (UTC)
:That literally made me jump out of my seat. Like, what the hell just happened here?! — [[User:Sqrt-1|The 𝗦𝗾𝗿𝘁-𝟭]] [[User talk:Sqrt-1|talk]] [[Special:Contributions/Sqrt-1|stalk]] 13:12, 8 February 2021 (UTC)
::I just realised, the main page has been this way for 3 days?! — [[User:Sqrt-1|The 𝗦𝗾𝗿𝘁-𝟭]] [[User talk:Sqrt-1|talk]] [[Special:Contributions/Sqrt-1|stalk]] 13:12, 8 February 2021 (UTC)
::: Reverted. Whoops, I must have read that one wrong. That's what I get for reading too fast. --[[User:Jeff|Jeff]] ([[User talk:Jeff|talk]]) 14:41, 8 February 2021 (UTC)

== Two issues that may need to be solved ==

Few more issues that may need to be solved:

1. Google ads are still appearing in random locations on wiki pages. Have you tried the [https://wpadvancedads.com/adsense-in-random-positions-auto-ads/ potential solution] I mentioned earlier? (It seems to be the most plausible explanation for the broken ads, and the time the changes happened was when the ads started appearing in random locations and breaking the pages.) If the previous solution I mentioned above didn't work, would it be possible to turn off the ads until there's a solution? The ads have been running rampant for more than a year in staggering amounts, the generated revenue should be enough to cover server costs until we can figure out a way to fix it, right?

2. Another editor mentioned a potential problem regarding the MediaWiki version in the community portal:
This wiki is [[Special:Version|currently]] on [[mw:MediaWiki 1.30|MediaWiki 1.30.0]] ([[mw:Release notes/1.30|release notes]]), the first of three releases of a version of MW that reached end-of-life in June of 2019 ([[mw:Version lifecycle]]). It's thus missing multiple important security updates from 1.30.1 and 1.30.2, not to mention the two years' worth of security updates since 1.30.x reached end-of-life. Even 1.31.x will be reaching end-of-life in just over a month.
If the sysadmins here update to [[mw:MediaWiki 1.35|MediaWiki 1.35.2]] ([[mw:Release_notes/1.35|release notes]]), that version will be maintained till September of 2023, with only a few security updates in the meantime. I would '''strongly''' encourage y'all to update to 1.35.2; to promptly update if there's a .3, .4, etc.; and to make sure you switch to the next LTS release (which will presumably be 1.39) well in advance of September of '23. (Note that this will also require updating to PHP 7.3.19 or later.) [[User:PinkAmpersand|PinkAmpersand]] ([[User talk:PinkAmpersand|talk]]) 07:17, 30 April 2021 (UTC)

Thanks! [[User:Herobrine|Herobrine]] ([[User talk:Herobrine|talk]]) 04:54, 10 May 2021 (UTC)
: Google ads should be reverted to one (or turned off), either way I turned off the annoying "auto ads" that jump all over the place. Not sure how that got turned on in the first place. I agree we are way behind on versions. If you or anyone knows PHP and Mediawiki upgrades better, let me know - because I don't have the time to apply to this currently. --[[User:Jeff|Jeff]] ([[User talk:Jeff|talk]]) 13:45, 10 May 2021 (UTC)

:: There’s a [[mw:Manual:Upgrading|manual for upgrading on the Mediawiki website]]. It appears we don’t need anything more than backing up, updating to 1.35 and updating to 1.39LTS or 1.40. [[User:Aaron Liu|Aaron Liu]] ([[User talk:Aaron Liu|talk]]) 17:31, 12 October 2023 (UTC)

== RenameUser extension ==

Hi Jeff! Long time no talk :)

[[#I am really dumb|A while ago]] I suggested that the [[mw:Extension:RenameUser|RenameUser]] extension could be helpful to have installed in the wiki. Since then I happened to perform a username unification across my online accounts, including changing my Wikipedia username from "Waldir" to "Waldyrious" (thus matching my Twitter, GitHub, etc.). Would you consider installing the extension so that my username (and others, like [[User:.mau,]] above and [[User:Nk1406]] [[explain xkcd:Community portal/Admin requests#Altering Username|here]]) could be changed? --[[User:Waldir|Waldir]] ([[User talk:Waldir|talk]]) 12:31, 4 December 2021 (UTC)

== Lost Account ==

Hi, Jeff. I was directed to you by Davidy22 in regards to my issue as it seems you have the ability to view the backend.

I joined this site in 2013 IIRC, I made a few edits/posts and then forgot about the account for a good 9 years. I came back and attempted to login but of course by now I forgot my password and I went through a few computers, browsers, and OSs so it wasn't saved. I've also been through a number of email addresses, most of which are still active and secondary under my current address. I was hoping I could provide you a list of emails I had used around that time and maybe I can regain access to the account that way.

My username here is PheagleAdler.

== Vandalism ==

Yo - Not sure if your talk page gets any special alerts, but in case it does: front page has got a good ol' vandal war goin' on. --[[User:SgtLion|SgtLion]] ([[User talk:SgtLion|talk]]) 21:37, 20 July 2022 (UTC)
: What do you need? I'll grant the rights. --[[User:Jeff|Jeff]] ([[User talk:Jeff|talk]]) 00:44, 26 July 2023 (UTC)
::Another vandal war going on, this time there's a guy going around with IPs putting gore images on everything./ [[User:84596Gamma|84596Gamma]] ([[User talk:84596Gamma|talk]]) 00:48, 26 July 2023 (UTC)
::: How can I help? --[[User:Jeff|Jeff]] ([[User talk:Jeff|talk]])

== You've got mail ==

Hi Jeff.

I just sent you an email via the "Email this user" function, and I wanted to let you know in case you miss it, or it gets filtered out since I am a new user.

Thanks, --[[User:DanielWTQ|DanielWTQ]] ([[User talk:DanielWTQ|talk]]) 19:45, 2 April 2023 (UTC)

: What do you need? Let me know. Sorry didn't get the email. --[[User:Jeff|Jeff]] ([[User talk:Jeff|talk]]) 00:45, 26 July 2023 (UTC)
:: Hi Jeff. First I wanted to thank you for the existence of this wiki - I have read through all of the XKCD comics, and am not ashamed to admit there were more than a few that I needed the explanations in order to understand.
:: I work as a Technical Project Manager at [https://www.wikiteq.com/ WikiTeq], a MediaWiki consulting firm, and I wanted to reach out and offer our services. I noticed on your user page that you are "learning MediaWiki on the fly" and that there are a few things that need to be upgraded for the wiki to migrate to a newer version of MediaWiki. At WikiTeq we have plenty of experience with upgrading wikis, and would be able to help you out.
:: If you would be interested in learning more or discussing this further, I can be reached at <code>daniel{at}wikiteq.com</code> or via [[Special:EmailUser/DanielWTQ]].
:: Thanks, --[[User:DanielWTQ|DanielWTQ]] ([[User talk:DanielWTQ|talk]]) 04:28, 26 July 2023 (UTC)

== Staying an admin ==

Hi, Jeff. Yes: I'd like to keep being an admin. Thanks. -- [[User:Dtgriscom|Dtgriscom]] ([[User talk:Dtgriscom|talk]]) 13:12, 30 July 2023 (UTC)
: Well, when you get to it... -- [[User:Dtgriscom|Dtgriscom]] ([[User talk:Dtgriscom|talk]]) 12:44, 3 August 2023 (UTC)

== We need at least one committed bureaucrat ==

Hi, Jeff. It's been two months since I asked to stay an admin, and there's been no word. It's possible you've changed your mind on promoting me, but it seems much more likely that you just haven't been around.

You and Lcarsos are the only bureaucrats on this wiki. You haven't contributed since May 2022 (excepting briefly during the recent vandalism explosion); Lcaros hasn't contributed since November 2021. That's fine, but it leaves the wiki unable to cope if there's another vandalism spree.

Would you please promote at least one active user to bureaucrat status? That way the community can adapt when a new attack comes, or if there are other admin tasks and no active admins around. (Thanks.) -- [[User:Dtgriscom|Dtgriscom]] ([[User talk:Dtgriscom|talk]]) 13:02, 10 September 2023 (UTC)

:While I've not been active for some time, a bit of casual browsing suggests that [[User:Dtgriscom]] is correct and there should be additional 'crats, and more than one - when everyone's a part-timer, you need more people to help out. [[User:Davidy22]] and [[User:Kynde]] are obvious candidates, though there may be another I've missed.

:Right now it looks like "This is Jeff's Wiki" is being designated through the fact that you're the only active 'crat, but this could also be designated by a Founder and/or Steward userright or even by a note on the Main Page or on the Community Portal, freeing the 'crat tag for use by other active users.

:P.S. [[User:TheusafBOT]] should probably be flagged as a bot, since it's been operating as one. [[User:Markhurd]] should be de-sysopped, since he is [[wikipedia:Wikipedia:Deceased Wikipedians/2017#Mark Hurd (Markhurd)|confirmed to have passed away]]. For that matter, I should probably be de-sysopped, since I only edited 7 times in the past decade and have<s>n't</s> used the tools once in that time. --– ''[[User:Philosopher|Philosopher]]'' [[User talk:Philosopher|Let us reason together.]] 10:58, 28 November 2023 (UTC)

== Wiki needs to be updated ==

Hello! I'm new to the site, but I noticed that you're running a very old version of MediaWiki. I would strongly suggest that you update if at all possible. I myself am the admin for a MediaWiki website as well, and although the upgrade process isn't exactly what I'd call easy, at least compared to updating most apps; it's by no means challenging. I was able to do a complete version upgrade in under an hour, with no previous experience updating a MediaWiki installation. Admittedly, I do have a lot of experience with maintaining linux servers in general, but not much knowledge is required. There is a very complete guide on upgrading. https://www.mediawiki.org/wiki/Manual:Upgrading I don't think upgrading the system would take more than one afternoon of your time, (although upgrading all of the extensions might take a bit longer, depending on how well their config options work across different versions) and it would help a lot with improving user experience and fixing many security vulnerabilities. Of course, you should also update PHP and any other software on the server. Yes, all of this combined will take time, and the site will probably have to be shut down for maintenance for a while, maybe a few days. However, in my opinion, it's worth it - either update now, or keep putting it off until the server gets hacked, or something else bad happens. You don't want to be this guy: https://xkcd.com/1328/ [[User:Obwankenobi|Obwankenobi]] ([[User talk:Obwankenobi|talk]]) 19:47, 9 February 2024 (UTC)

Talk:2962: President Venn Diagram

2024-07-23T21:19:32Z

172.70.162.17: We don't tend to subeader Tallk/Discussion pages. And we do sign contributions there. (Been a spate of unsignedness... Same new-user IP?)

<noinclude>{{notice|This site is intended to explain the technical details and inspirations (perhaps humorous) behind the comics. This particular page is for Discussion/Talk about the particular comic in question, which ''will'' involve some personal overviews and meta-discussion. But it is not the ideal place to reproduce the wi(l)der issue of public opinion, which the actual political process will eventually establish, and many other public forums and outlets exist in which you can convey your own current leanings/observations on the whole election-related happenings. Please be <s>sensible</s> ''typically geeky in your wit'', and try to keep all the ideological heat and partisan arguments out of this as much as possible.|image=warning!!.png|}}</noinclude>

Another really timely comic. Biden just dropped out of the race and endorsed Harris yesterday. [[User:Barmar|Barmar]] ([[User talk:Barmar|talk]]) 01:58, 23 July 2024 (UTC)

Forget Biden, Hillary and Obama. This is the endorsement that counts. [[Special:Contributions/172.68.23.199|172.68.23.199]] 01:58, 23 July 2024 (UTC)

I suppose no one is allowed to say that the upper right circle is mislabeled. It was supposed to say incompetent, dishonest and despicable. [[Special:Contributions/162.158.90.25|162.158.90.25]] 02:07, 23 July 2024 (UTC)
:You're allowed to say it, but then we're allowed to suggest (with rather more emperical proof) that her presumptive opponent better fits your rewording. How about we all just don't try to re-run the old arguments (or pre-run the upcoming election) in that sort of tone, eh?
:(To be clear, Randall has made positive comments to his favoured candidate, rather than stooping to arbitrarily attacking their opponent. If you can't at least be as positive in your own convictions then it's really not going to help your cause.) [[Special:Contributions/172.69.195.6|172.69.195.6]] 04:10, 23 July 2024 (UTC)
::First, Harris has more than one opponent, not just within her own party, but in the general election to follow if she’s nominated. Second, the many good qualities of my favo[u]red candidate are irrelevant to this comic, so I didn’t mention ''her''. Third, I didn’t start this political discussion; Randall did, by making a refutable claim in his comic. Lastly, there’s nothing arbitrary about a resident of California pointing out [https://truthout.org/articles/kamala-harris-has-a-distinguished-career-of-serving-injustice/ facts about the former attorney general of California] that people in other states, such as Massachusetts, might be completely ignorant of. [[Special:Contributions/162.158.186.253|162.158.186.253]] 05:45, 23 July 2024 (UTC)
: You could say it, but then the box which says 'Kamala Harris' is mislabeled and 'Donald Trump' should be placed in the box above the middle one. [[User:Jaap-Jan|Jaap-Jan]] ([[User talk:Jaap-Jan|talk]]) 07:19, 23 July 2024 (UTC)

Well Kamala, you had a good run. Randall has the touch of death when it comes to picking political candidates. [[Special:Contributions/162.158.154.39|162.158.154.39]] 03:02, 23 July 2024 (UTC)
:You mean that no candidate endorsed by XKCD has ever won? ;) https://xkcd.com/2383/ [[User:Fabian42|Fabian42]] ([[User talk:Fabian42|talk]]) 04:35, 23 July 2024 (UTC)
:Randall was smart enough to not make a comic endorsing Joe *before* he got elected like he did with Hilldawg and (now) Kamala.[[Special:Contributions/162.158.154.31|162.158.154.31]] 11:36, 23 July 2024 (UTC)
: Not so; Randall endorsed [https://blog.xkcd.com/2008/01/28/obama/ Obama in 2008]. [[User:-insert valid name here-|-insert valid name here-]] ([[User talk:-insert valid name here-|talk]]) 15:09, 23 July 2024 (UTC)

Randall angling for VP? [[User:Alcatraz ii|Alcatraz ii]] ([[User talk:Alcatraz ii|talk]]) 02:59, 23 July 2024 (UTC)

I think Randall would be good president. -- [[User:Hkmaly|Hkmaly]] ([[User talk:Hkmaly|talk]]) 03:52, 23 July 2024 (UTC)
:Meh, he seems to at least not be good at public speaking. And from what he says about himself, he would be distracted way too easily. [[User:Fabian42|Fabian42]] ([[User talk:Fabian42|talk]]) 04:35, 23 July 2024 (UTC)

The layout of this Venn diagram reminds me of https://xkcd.com/112/ {{unsigned ip|162.158.166.234|03:04, 23 July 2024}}

I think I would probably swap the two. [[Special:Contributions/162.158.174.23|162.158.174.23]] 04:03, 23 July 2024 (UTC)

I would be very interested in which non-Politicians Randall would put into the top middle section. [[User:Fabian42|Fabian42]] ([[User talk:Fabian42|talk]]) 04:35, 23 July 2024 (UTC)

I guess Munroe has no issues with questions about ongoing U.S. backed genocides shrugged off with "shrimp and grits!"? {{unsigned|Markifi|05:39, 23 July 2024}}

What really strikes me is that the USA have a (de facto) 2-Party system and still go so much into personal attacks and endorsements, etc. which in my mind could be the decision-making bit between 2 similiar parties in a multi-party system, or 2 equally sympathic parties to me. But in my mind a 2-party system should at least have the upside of actually discussing policy, and voters deciding based on that... --[[User:Lupo|Lupo]] ([[User talk:Lupo|talk]]) 06:30, 23 July 2024 (UTC)

If Randall was in charge he could stop supplying weapons to Israel probably [[Special:Contributions/172.69.195.63|172.69.195.63]] 10:16, 23 July 2024 (UTC)

Randall sempai- we are targeted too. {{unsigned ip|172.70.131.52|15:37, 23 July 2024}}

Re: the mouseover text: "[[1062:_Budget_News|I am more of a deficit sugar glider]]" ought to be in the running. [[Special:Contributions/172.69.58.157|172.69.58.157]] 12:42, 23 July 2024 (UTC)

personally I'd put most candidates either the top left [[Special:Contributions/172.69.58.24|172.69.58.24]] 17:34, 23 July 2024 (UTC)

Neat. A Euler diagram (and no, Venn cannot just have this one). {{unsigned ip|172.71.158.226|18:18, 23 July 2024}}

;Éligible...

I think the 'eligible' topic is related to a campaign against Harris saying she isn't eligible because she's not american enough. This (fake) news was reposted in France by french Trump's fans. {{unsigned ip|172.69.225.223|20:36, 23 July 2024}}

Talk:2962: President Venn Diagram

2024-07-23T11:04:45Z

172.70.162.17:

<noinclude>{{notice|This site is intended to explain the technical details and inspirations (perhaps humorous) behind the comics. This particular page is for Discussion/Talk about the particular comic in question, which ''will'' involve some personal overviews and meta-discussion. But it is not the ideal place to reproduce the wider issue of public opinion, which the actual political process will eventually establish, and many other public forums and outlets exist in which you can convey your own current leanings/observations on the whole election-related happenings. Please be <s>sensible</s> ''typically geeky in your wit'', and try to keep all the ideological heat and partisan arguments out of this as much as possible.|image=warning!!.png|}}</noinclude>

Another really timely comic. Biden just dropped out of the race and endorsed Harris yesterday. [[User:Barmar|Barmar]] ([[User talk:Barmar|talk]]) 01:58, 23 July 2024 (UTC)

Forget Biden, Hillary and Obama. This is the endorsement that counts. [[Special:Contributions/172.68.23.199|172.68.23.199]] 01:58, 23 July 2024 (UTC)

I suppose no one is allowed to say that the upper right circle is mislabeled. It was supposed to say incompetent, dishonest and despicable. [[Special:Contributions/162.158.90.25|162.158.90.25]] 02:07, 23 July 2024 (UTC)
:You're allowed to say it, but then we're allowed to suggest (with rather more emperical proof) that her presumptive opponent better fits your rewording. How about we all just don't try to re-run the old arguments (or pre-run the upcoming election) in that sort of tone, eh?
:(To be clear, Randall has made positive comments to his favoured candidate, rather than stooping to arbitrarily attacking their opponent. If you can't at least be as positive in your own convictions then it's really not going to help your cause.) [[Special:Contributions/172.69.195.6|172.69.195.6]] 04:10, 23 July 2024 (UTC)
::First, Harris has more than one opponent, not just within her own party, but in the general election to follow if she’s nominated. Second, the many good qualities of my favo[u]red candidate are irrelevant to this comic, so I didn’t mention ''her''. Third, I didn’t start this political discussion; Randall did, by making a refutable claim in his comic. Lastly, there’s nothing arbitrary about a resident of California pointing out facts about the former attorney general of California that people in other states, such as Massachusetts, might be completely ignorant of. [[Special:Contributions/162.158.186.253|162.158.186.253]] 05:45, 23 July 2024 (UTC)
: You could say it, but then the box which says 'Kamala Harris' is mislabeled and 'Donald Trump' should be placed in the box above the middle one. [[User:Jaap-Jan|Jaap-Jan]] ([[User talk:Jaap-Jan|talk]]) 07:19, 23 July 2024 (UTC)

Well Kamala, you had a good run. Randall has the touch of death when it comes to picking political candidates. [[Special:Contributions/162.158.154.39|162.158.154.39]] 03:02, 23 July 2024 (UTC)
:You mean that no candidate endorsed by XKCD has ever won? ;) https://xkcd.com/2383/ [[User:Fabian42|Fabian42]] ([[User talk:Fabian42|talk]]) 04:35, 23 July 2024 (UTC)

Randall angling for VP? [[User:Alcatraz ii|Alcatraz ii]] ([[User talk:Alcatraz ii|talk]]) 02:59, 23 July 2024 (UTC)

I think Randall would be good president. -- [[User:Hkmaly|Hkmaly]] ([[User talk:Hkmaly|talk]]) 03:52, 23 July 2024 (UTC)
:Meh, he seems to at least not be good at public speaking. And from what he says about himself, he would be distracted way too easily. [[User:Fabian42|Fabian42]] ([[User talk:Fabian42|talk]]) 04:35, 23 July 2024 (UTC)

The layout of this Venn diagram reminds me of https://xkcd.com/112/ {{unsigned ip|162.158.166.234|03:04, 23 July 2024}}

I think I would probably swap the two. [[Special:Contributions/162.158.174.23|162.158.174.23]] 04:03, 23 July 2024 (UTC)

I would be very interested in which non-Politicians Randall would put into the top middle section. [[User:Fabian42|Fabian42]] ([[User talk:Fabian42|talk]]) 04:35, 23 July 2024 (UTC)

I guess Munroe has no issues with questions about ongoing U.S. backed genocides shrugged off with "shrimp and grits!"? {{unsigned|Markifi|05:39, 23 July 2024}}

What really strikes me is that the USA have a (de facto) 2-Party system and still go so much into personal attacks and endorsements, etc. which in my mind could be the decision-making bit between 2 similiar parties in a multi-party system, or 2 equally sympathic parties to me. But in my mind a 2-party system should at least have the upside of actually discussing policy, and voters deciding based on that... --[[User:Lupo|Lupo]] ([[User talk:Lupo|talk]]) 06:30, 23 July 2024 (UTC)

If Randall was in charge he could stop supplying weapons to Israel probably [[Special:Contributions/172.69.195.63|172.69.195.63]] 10:16, 23 July 2024 (UTC)

2960: Organ Meanings

2024-07-19T15:26:04Z

172.70.162.17: /* Explanation */

{{comic
| number = 2960
| date = July 17, 2024
| title = Organ Meanings
| image = organ_meanings_2x.png
| imagesize = 407x346px
| noexpand = true
| titletext = IMO the thymus is one of the coolest organs and we should really use it in metaphors more.
}}

==Explanation==
{{incomplete|Created by a BOT'S PINEAL GLAND - Please change this comment when editing this page. Do NOT delete this tag too soon.}}
This is a graph by [[Randall]] ranking how well he understands the function of certain human organs, compared to how much he understands {{w|metaphor}}s using them. 

A number of organs (and other body parts) are used in common vernacular for metaphorical meaning. The English language is full of sayings like "she had a lot of heart", "go with your gut", and "he hasn't got the stomach for it". One might expect understanding an organ's role and its use in metaphor to be strongly correlated, since the metaphors generally work by drawing a parallel to biological function. However, since our understanding of biological functions has evolved dramatically over time, and metaphorical language does not always keep up, the correspondence is often much looser. To complicate matters, many such anatomical metaphors vary from culture to culture, even though the biological functions remain largely consistent.{{Citation needed}}

The {{w|pineal gland}}, located in the center of the brain, was described as the "Seat of the Soul" by the {{w|Mind–body dualism|mind-body dualist}} {{w|René Descartes}} in the 17th century. If this was true, the metaphors that might be derived from it would be quite clear. It was only in the mid-20th century that its real neuroendocrine (hormone-producing) biological role was grasped. Thus, the real meaning of the metaphor "the pineal gland of something" is uncertain, as is its actual function for the layman. It was also described as a "third eye", as its regulation of the circadian rhythm used to be linked to light perception in the organ, and still is in {{w|Tuatara|Tuataras}}. It is also jokingly stated as still the location of the soul within discordianism.

The {{w|thymus}}, highlighted in the title text, plays an important role in the immune system. It is not commonly used in metaphors,{{Citation needed}} but is perhaps ripe for use in ones describing such things as resilience, indomitability, and adaptability to changing circumstance, were more people to know what it was.

{| class="wikitable" style="margin:auto"
|-
! Organ !! Biological understanding !! Metaphor understanding !! Biological function !! Metaphor meaning(s) !! Comments
|-
| {{w|Appendix_(anatomy)|Appendix}} || 3% || 85% || Maintaining gut flora, introducing pathogens to the immune system || Uselessness; extraneousness || The appendix is vestigial and was long assumed to have no useful function, and thus could be removed with minimal consequences. Modern research has shown that it retains utility as reservoir for useful micro-organisms. It is also unclear whether metaphorical usages have in mind the body part, or the alternative usage referring to a part of a publication.
|-
| {{w|Nerves}} || 40% || 90% || Sensing stimuli, and controlling muscles and organs || Courage; lack of courage; unsettledness; arrogance; (emotional) feeling ||
|-
| {{w|Spine}} || 50% || 80% || Holding other bones up, protecting the spinal cord || Courage; resoluteness; structural integrity; centrality ||
|-
| {{w|Heart}} || 80% || 90% || Circulation of blood || Emotion; feeling; sympathy; love; courage; resilience; core; essence; the vulnerable self || The function of the heart is (relatively) easy to understand, since it is, in essence, a circulatory pump. But it's long been culturally associated with emotion and resolve.
|-
| {{w|Bones}} || 75% || 80% || Holding the body up, protection of underlying organs || Basic/underlying structure; something hidden; core; essence; an issue of debate || Bone marrow is the actual source of blood, associated with {{w|four humours|sanguine moods}}, previously believed to be created in the liver
|-
| {{w|Stomach}} || 70% || 65% || Repository for cake and other, less important, foods || Ability to tolerate unpleasant circumstances; motivation || The stomach's primary function is as part of the digestive system, but it's often one of the first organs impacted by illness or disgust, which has made a strong stomach a metaphor for constitution and resolve.
|-
| {{w|Liver}} || 10% || 48% || Processing alcohol and other less important metabolic functions like glycemia regulation, toxin processing, decomposition/production of amino acids and lipids, etc. || Courage or lack thereof (e.g., lily-livered) || Actual source of yellow bile, stored in the gall bladder, associated with {{w|four humours|choleric moods}} but previously believed to be the source of blood
|-
| {{w|Lungs}} || 60% || 52% || Oxygenation of blood, exhalation of carbon dioxide || Loudness (e.g., of singing); purification; aerobic stamina || Source of phlegm, associated with {{w|four humours|phlegmatic moods}}
|-
| {{w|Spleen}} || 22% || 34% || Storing extra blood, filtering blood for damaged cells and pathogens || Anger; viciousness, "venting one's spleen" || Source of black bile, associated with {{w|four humours|melancholy}}
|-
| {{w|Thymus}} || 10% || 13% || Training immune cells (T-Cells) || ||
|-
| {{w|Kidneys}} || 47% || 19% || Filtering blood for metabolic wastes and excess minerals || ||
|-
| {{w|Pineal gland}} || 2% || 2% || Produces melatonin || || Philosophers from Herophilus to Descartes speculated that the pineal gland might be the seat of the soul, or regulate the flow of vital spirits, or otherwise serve an important metaphysical function.
|-
| {{w|Tongue}} || 70% || 5% || Taste, chewing, speaking || Language; unidentified speakers (particularly in relation to gossip/secrets); something long and extended ||
|}

As [[Randall]] does not provide any examples, only his general ratings, it is not entirely clear whether he has restricted himself to metaphors drawing upon the nature of organs (e.g. "heart of the city" or "bone dry") and/or metaphorically describing these organs in terms of another idea ("a heart of gold" or "his bones turned to jelly"). As well as metaphor, the assessment might also involve all closely related (or overlapping) rhetorical devices such as {{w|simile}} ("his heart fluttered like a butterfly"), {{w|metonymy}} ("my mother tongue"), other references with an intent more figurative than literal ("he was a bundle of nerves"), or misattributed bodily functions ("I feel it in my bones"). As such, any contributed examples given here could be disputed in all but the broadest of terms.

==Transcript==
:[A graph is shown with X and Y-axis without arrow or ticks. To the left of the Y-axis and below the X-axis there are labels with an arrow pointing up from the top of the Y-axis label and an arrow pointing right above the X-axis label, just beneath the x-axis.]
:Y-axis: How well I understand what it means when used in metaphors
:X-axis: How well I understand its actual biological function

:[On the graph is a scatter plot with 13 labels. Each label is written inside a line that goes just around the words. There are most in the top right corner, but they are spread all over the graph. Here in approximate reading order from top left with indicating of where on the graph the words are located:]
:[Top left:]
:Appendix
:[Top middle:]
:Nerves
:Spine
:[Top right:]
:Heart
:Bones
:Stomach
:[Center left:]
:Liver
:Spleen
:[Center right:]
:Lungs
:[Bottom left:]
:Thymus
:Pineal gland
:[Bottom middle:]
:Kidneys
:[Bottom right:]
:Tongue

{{comic discussion}}

[[Category:Scatter plots]]
[[Category:Rankings]]
[[Category:Biology]]
[[Category:Language]]

2960: Organ Meanings

2024-07-18T08:17:26Z

172.70.162.17: /* Explanation */

2960: Organ Meanings

2024-07-18T08:13:03Z

172.70.162.17: /* Explanation */

2960: Organ Meanings

2024-07-18T08:12:33Z

172.70.162.17: /* Explanation */

2959: Beam of Light

2024-07-16T08:23:50Z

172.70.162.17: /* Explanation */

{{comic
| number = 2959
| date = July 15, 2024
| title = Beam of Light
| image = beam_of_light_2x.png
| imagesize = 235x419px
| noexpand = true
| titletext = Einstein's theories solved a longstanding mystery about Mercury: Why it gets so hot. "It's because," he pointed out, "the sun is right there."
}}

==Explanation==
{{incomplete|Created by a BOT FLYING ALONGSIDE A BEAM OF LIGHT - Please change this comment when editing this page. Do NOT delete this tag too soon.}}
{{w|thought_experiment|Thought experiments}}, such as those posited by {{w|Albert Einstein}} to illustrate the principles of {{w|Special Relativity}} (that deals with the interactions between high speeds and the perceptions of time), can sometimes reveal what appear to be fundamental principles of the universe that can revolutionise scientific understanding. But it is not always so. In this comic, we find Einstein imagining the scenario that would later help to make him famous, but before any particularly profound revelations have been established. It is currently just, so to speak, a flight of fantasy.

In a similar vein, one of the long-standing issues about the orbit of Mercury is that it doesn't ''quite'' orbit the Sun in the way that Newtonian physics would suggest. We now know that this is accounted for by {{w|General Relativity}}, another of Einstein's suggestions (that relates the effects of gravity upon time perception), but we once more find ourselves overhearing his thoughts well before we get anywhere near any developments that we know will start to explain this, and is stuck at just 'imagining' that Mercury is hot due to its proximity to the Sun, which isn't a particularly novel or useful conclusion, or close to what we would now recognise as Einstein's much lauded theory.

The largely irrelevant (at least in any basic terms of Relativity) issue of the heat from the Sun would seem to have more relevance to the {{w|Kelvin–Helmholtz mechanism}}, at one time proposed as the cause of the Sun's heat but superseded by the eventual discovery and understanding of nuclear fusion, or the {{w|Yarkovsky effect}}, in which thermal effects were shown to have an influence upon the orbital dynamics of minor bodies. Neither of these things were the focus of Einstein's own studies.

==Transcript==
{{incomplete transcript|Do NOT delete this tag too soon.}}
:[Albert Einstein sitting on a chair, with a thought bubble above his head.]
:Einstein: ''Nyoooooooooom!''
:Einstein: I'm so fast!
:Einstein: ''Nyyooooooooom!''

:[Caption below the panel:]
:The first few times Einstein imagined flying alongside a beam of light, he didn't have any particular insights.
{{comic discussion}}

[[Category:Comics featuring real people]]
[[Category:Physics]]

Talk:2922: Pub Trivia

2024-07-15T15:58:57Z

172.70.162.17:

I expect that the BTS question is a reference to the traditional Korean system of counting a person's age in units of Sal which started at 1 and incremented on the first day of the year. Since this system was abandoned on official documents in 2023, but is still in use in some contexts, the question of whether every member of BTS had a "birthday" on the first day of the year is ambiguous. [[User:Philhower|Philhower]] ([[User talk:Philhower|talk]]) 14:13, 19 April 2024 (UTC)
:This is marked as fiction https://www.youtube.com/watch?v=csSYfPaBaS4, but was it?

question 5, planets exist outside the solar system, adding to the ambiguity. [[User:Philhower|Philhower]] ([[User talk:Philhower|talk]]) 14:15, 19 April 2024 (UTC)
:One of the requirements in the definition of a planet is that it orbits the Sun, so no there are no planets outside the Solar system. [[User:Tharkon|Tharkon]] ([[User talk:Tharkon|talk]]) 17:50, 19 April 2024 (UTC)

::{{w|NASA}} disagrees. [https://exoplanetarchive.ipac.caltech.edu/ Exoplanet Archive] shows 5612 confirmed planets. -- [[User:Hkmaly|Hkmaly]] ([[User talk:Hkmaly|talk]]) 20:55, 19 April 2024 (UTC)
::: The IAU is the body that defines such things - and they do say that planets have to orbit the Sun...things that orbit other stars are properly called "exo-planets". But still - do we include dwarf planets? Rogue planets? It's definitely a crazy-vague question. [[Special:Contributions/172.70.211.219|172.70.211.219]] 21:05, 19 April 2024 (UTC)
:::: the IAU is one body that claims the authority to define such things, but their authority is not recognized by any of the things they are claiming the right to name. (Except for a very small part of earth, mostly made of humans) [[Special:Contributions/172.69.58.203|172.69.58.203]] 00:10, 20 April 2024 (UTC)
::::That seems ridiculous, "If it isn't one of ours it don't count"? That'd be like saying "They're only 'cars' if they use North American roads, in other countries using THEIR roads you have to call them exo-cars!". LOL! And every future/space-based fiction calls them planets, just makes more sense not to be so arbitrarily exclusionary. Ours isn't the only sun, we shouldn't pretend it has some aspect that makes it count more than others - outside of that it's the one with us. [[User:NiceGuy1|NiceGuy1]] ([[User talk:NiceGuy1|talk]]) 06:09, 20 April 2024 (UTC)
::::: Correction, the IAU definition explicitly states that it is only about planets within the solar system and has no comment about exoplanets one way or the other. Presumably, to leave some flexibility on all the weird edge cases that are bound to come up with exoplanets. https://www.iau.org/static/resolutions/Resolution_GA26-5-6.pdf [[Special:Contributions/172.68.195.213|172.68.195.213]] 07:55, 21 April 2024 (UTC)
::::Gas giants should be excluded too - they're not planets - just wannabe stars.[[Special:Contributions/172.70.163.31|172.70.163.31]] 08:34, 22 April 2024 (UTC)

: I think the correct answer is 0: before the solar system formed there were no planets. So, originally, there would have been none. If exo-planets count, going back to the beginning of time gives the same answer: when the universe came into existence during the big bang there were no stars, let alone planets orbiting them. Even religion agrees: in the beginning God created the earth and the heavens, but the sun came later, so technically earth was not a planet since it didn't orbit anything.--[[Special:Contributions/162.158.62.49|162.158.62.49]] 22:23, 19 April 2024 (UTC)

As for question 9, please see the note about the history of Austrailia's capitals at: [[https://en.wikipedia.org/wiki/List_of_former_national_capitals#Oceania]]. and the page regarding countries with multiple capitals [[https://en.wikipedia.org/wiki/List_of_countries_with_multiple_capitals]] [[User:Philhower|Philhower]] ([[User talk:Philhower|talk]]) 14:24, 19 April 2024 (UTC)
: See Also [https://en.wikipedia.org/wiki/List_of_Australian_capital_cities List of Australian capital cities] - As an Australian, I believe many would also consider the major city in their state/territory to be a capital city, although not the capital of Australia.

: The explanation misses the possibility that this is a Dad joke: where the capital city of Australia is 'Canberra,' as long as the respondent doesn't actually count either the letters in Canberra (1,2,3,4,5,6,7,8) or the population of Canberra (unknowable/ambiguous). [[User:Bilkie|Bilkie]] ([[User talk:Bilkie|talk]]) 14:12, 22 April 2024 (UTC)

About the alt text, London is certainly in Europe. The question itself is malformed because "Europe (or 'the EU')" is not self-consistent: there is a lot of European countries that are not part of the EU. [[User:RedGolpe|RedGolpe]] ([[User talk:RedGolpe|talk]]) 14:32, 19 April 2024 (UTC)
:The "Greater London" answer is also tricksy, as the "ceremonial county" of GL {{w|London boroughs|may not include}} the additional area of the City Of London (though it does include the City Of Westminster, which is sometimes the trick answer to certain trick questions that a quizmaster might attempt to pull). The ''administrative'' Greater London is the ceremonial one ''plus'' CoL, however... [[Special:Contributions/172.70.162.19|172.70.162.19]] 15:04, 19 April 2024 (UTC)
::I would argue London is not in Europe because there is no clear definition for Europe as a geographic area, it really doesn't have an eastern border that is not arbitrary, so the only clearly defined thing Europe can refer to is the EU. [[User:Tharkon|Tharkon]] ([[User talk:Tharkon|talk]]) 17:50, 19 April 2024 (UTC)
:::London, France is both in Europe and the EU https://en.wikipedia.org/wiki/London,_France [[Special:Contributions/172.70.163.49|172.70.163.49]] 18:00, 19 April 2024 (UTC)
:::While the eastern border of Europe is not clearly defined I am not aware that there is any definition of (geographic) Europe that excludes the islands (and subsequently London) --[[Special:Contributions/162.158.202.135|162.158.202.135]] 21:24, 19 April 2024 (UTC)
::::There's "mainland Europe", excluding islands. Or at least any of several possibly island archipeligos and/or island nationstates. e.g. Mont-Saint-Michel might not be (exluded, that is, due to being French and having a (tide-dependant) ground access), Jersey would be (British Crown Territory island), Malta probably (island state), Sicily would depend on your thinking (it being Italian, and much larger than the strait that makes it an island offshoot). Most of Scandinavia might be interestingly included (with Denmark) or excluded (with Iceland), according to context. Even Gibraltar might or might not be, depending upon upon the thinking (or lack of it) behind the use of the term. (But, fiddling around the edges aside, (the English) London is not in "mainland Europe" and hasn't been for maybe a full 10kY before it became "London" in any useful sense.) [[Special:Contributions/172.70.163.49|172.70.163.49]] 23:44, 19 April 2024 (UTC)
::::: The phrase "continental Europe" is also used, and might be implied by a British person saying "I travelled around Europe last year". [[Special:Contributions/172.69.195.54|172.69.195.54]] 15:01, 21 April 2024 (UTC)
::::: The (semi-)apocryphal headline "Fog In Channel, Continent Cut Off" is perhaps indicative of the {{w|Continental Europe#Great Britain and Ireland}} British collective mindset (of which I must therefore be a component, albeit not at that end of the spectrum). [[Special:Contributions/172.71.242.71|172.71.242.71]] 15:39, 21 April 2024 (UTC)
:::I'd say The European Council has at least as good (or bad, depending which way you look at it) a claim to be 'Europe' as the EU does, and London (through the UK) is in that (for now, anyway).[[Special:Contributions/172.71.242.55|172.71.242.55]] 09:07, 22 April 2024 (UTC)

The [https://en.wikipedia.org/wiki/Benxi Benxi Lake] is actually considered to be the smallest lake in the world. [[Special:Contributions/172.70.135.205|172.70.135.205]]
:{{cn}}[[Special:Contributions/172.70.86.176|172.70.86.176]] 14:40, 19 April 2024 (UTC)
:Many websites says Benxi lake is recognized by Guinness records, but guinnessworldrecords.com does not have such a record. Either they recognized smallest lakes previously but not anymore, or they never had such a record and we are witnessing citogenesis ([https://xkcd.com/978/]) [[Special:Contributions/172.71.154.210|172.71.154.210]] 17:33, 22 April 2024 (UTC)
::I've been getting the Guinness World Records book for 20 years. I just checked my 2004 edition, and there is no record for "smallest lake". Doesn't mean it wasn't left out due to space concerns, but I'm not checking all the books. [[User:NealCruco|NealCruco]] ([[User talk:NealCruco|talk]]) 04:34, 26 April 2024 (UTC)
:Kari Lake is considerably smaller than Benxi Lake, although she has children so may not be the smallest Lake[[Special:Contributions/172.70.162.17|172.70.162.17]] 15:58, 15 July 2024 (UTC)

I never realized how challenging it is to edit pages when they've just been posted. Makes me long for something like Google docs.[[Special:Contributions/172.68.3.43|172.68.3.43]] 14:39, 19 April 2024 (UTC)

People, who are born on 29th February don't have a birthday in years which are not leap years. However, 2024, when this comic was published is a leap year. --[[Special:Contributions/162.158.95.9|162.158.95.9]] 14:40, 19 April 2024 (UTC)

"5. How many planets were there originally?" This could also refer even back to the start of the universe, when there were (likely) just 0 planets. --[[Special:Contributions/162.158.86.101|162.158.86.101]] 14:43, 19 April 2024 (UTC)

I anticiated a lot of Edit Conflicts, but not actually quite so many as to not to be able to resolve my edits with everyone else's. This is the bare-bones that I was putting in (until finding multiple attempts tried to be added consecutively...
{{cot}}
{| class="wikitable"
|-
! Question !! Problem !! Possible answer(s)
|-
| Which member of BTS has a birthday this year?
| Every living person has a birthday this year (being a leap-year, this includes those born on 29/Feb).
|
|-
| How many sides does a platonic solid have?
| There are five (or [[2781: The Six Platonic Solids|six]]) platonic solids, each with a different number of sides.
| 4, 6, 8, 12 or 20
|-
| What is the smallest lake in the world?
| The distinction between a small lake and a pond, pool or puddle (for example) is difficult to define.
|
|-
| Which Steven Spielberg movie features more shark attacks? Jaws (1875) or Lincoln (2012)
| Not a problem, as Lincoln has very few shark attacks.{{Citation needed}} The problem is that barely anyone will ''not'' be able to correctly answer this.
|
|-
| How many planets were there originally?
| Contextually vague. At what time and within what volume of space, and what is the scope of 'planet' defined here?
|
|-
| What NFL player has scored the most points outside of a game?
| Outside of (NFL) games, individuals may accumulate points in any number of ways (e.g. Scrabble)
|
|-
| The Wright brothers built the first airplane. Who built the last one?
| Until no further planes are built, individuals/teams/companies continue to build (to completion) ever more examples, changing the answer possibly moment to moment.
|
|-
| Is every even number greater than 2 the sum of two primes?
| This is a {{w|Goldbach's conjecture|currently unanswered question}}.
|
|-
| Not counting Canberra, what city is the capital of Australia?
| Canberra is ''the'' capital of Australia, a fairly well known 'obscure' fact. Each Australian territory also has their own state capital, so there is not one other ''single'' example.
|
|-
| Who played the drums?
| Lack of context. With which group? For which song? For which (re-)recording? At which event?
|
|-
| Where is London located? (a) The British Isles (b) Great Britain and Northern Ireland (c) The UK (d) Europe (or 'the EU') (e) Greater London
| Almost all of these are correct (though London is geographically in Europe but no longer in the EU).
|}

This is apparently deliberate (at least on behalf of the organisers), perhaps to upset or otherwise impede groups of overconfident quizzers who would otherwise dominate any genuinely good quiz.
{{cob}}
...make use of it however you wish, anybody who has the time not to keep chasing all the simultaneous edits. (The above is a bit behind 'perfection', and lacks many of the integrations, wikilinks and adjustments I had made. I backspaced out of the edit I had finally reached, before remembering to take a full copy into my paste-buffer!) [[Special:Contributions/172.70.90.115|172.70.90.115]] 14:53, 19 April 2024 (UTC)

I thought the answer to #2 could be 1, because as 3D solids they only have one surface. I would guess the player with the most points outside of a game is the one who's played idlers (like Cookie Clicker) the longest — though I suppose those could be considered "inside of a game" as well. Also, I played the drums. [[Special:Contributions/172.70.254.143|172.70.254.143]] 15:33, 19 April 2024 (UTC)
:The answer to #2 is '2 - the in-side and the out-side'.[[Special:Contributions/172.69.43.242|172.69.43.242]] 15:46, 19 April 2024 (UTC)

Considering the platonic solids explanation lists all the correct answers, could someone include a list of all the members of BTS and their respective birthdays? Bing copilot suggests the following:

1. **Jin (Kim Seok-jin)**:
: - Birthday: **December 4, 1992**

2. **Suga (Min Yoon-gi)**:
: - Birthday: **March 9, 1993**

3. **J-Hope (Jung Hoseok)**:
: - Birthday: **February 18, 1994**

4. **RM (Kim Nam-joon)**:
: - Birthday: **September 12, 1994**

5. **Jimin (Park Ji-min)**:
: - Birthday: **October 13, 1995**

6. **V (Kim Tae-Hyung)**:
: - V's birthday is **December 30**, but the year is not mentioned in the provided information.

7. **Jungkook (Jeon Jungkook)**:
: - Jungkook's birthday is **September 1**, but the year is not mentioned in the provided information.
[[Special:Contributions/172.70.162.19|172.70.162.19]] 15:48, 19 April 2024 (UTC)

: I'm not opposed to adding BTS birthdays, but I think it should be done by someone more knowledgeable about the band than me. Birthdays can be a surprisingly nuanced subject.[[User:Comatoran|Comatoran]] ([[User talk:Comatoran|talk]]) 15:59, 19 April 2024 (UTC)
:Wikipedia says {{w|V_(singer)|'95}} and {{w|Jungkook|'97}} respectively[[Special:Contributions/172.70.162.37|172.70.162.37]] 16:04, 19 April 2024 (UTC)

London is both a City (London) and a City within a City (The City of London) and an Area (Greater London)
There are also many more places named London than the one that is the Capital of the UK .. Serbia, France, Canada (Which is larger and the one in the UK), 10 in the USA, and one on Kiribati 17:56, 19 April 2024 (UTC)
:Are you saying London, Ontario, Canada is BIGGER than the more famous London, England??? That's a country capital! Is that seriously true? I'm Canadian, I don't know London, ON as being THAT big... [[User:NiceGuy1|NiceGuy1]] ([[7User talk:NiceGuy1|talk]]) 05:52, 20 April 2024 (UTC)
::It's very unlikely to be larger in population terms than the (common!) wider definition of the main UK London, as that would make it larger than any other city in Canada by a large margin. In terms of area, London ON is very likely to be larger than the City of London (which is surprisingly small). More widely, the definition of what actually is a "city" is more complex than it appears to be at first glance; administrative areas (what official statistics are collected for) are often quite different from where the bulk of people are. --[[Special:Contributions/162.158.74.25|162.158.74.25]] 07:20, 20 April 2024 (UTC)
:::Some wikipedia figures, for reference:
:::*{{w|London, Ontario}} = 168.76 sq mi, Population 422,324
:::*{{w|City of London}}, subset of Capital of UK = 1.12 sq mi, Population 8,618
:::*{{w|London}}, administrative/etc capital of UK = 606.96 sq mi, Population 8,799,800
:::*{{w|London, Belgrade}} = a 'neighbourhood' (<1 sq mi?), Population unknown
:::*{{w|London, France}} = 'a small agricultural village'
:::*...
:::*{{w|List of minor planets: 8001–9000#837|8837 London}} = 1.5 mi diameter (~28s q mi, ~14 cu mi?), Population... some of the {{w|Clangers}}?
:::I skipped a few of the others (e.g. the various US ones: cities, townships, communities)... [[Special:Contributions/162.158.230.46|162.158.230.46]] 18:10, 20 April 2024 (UTC)

I'm surprised there were no phishing-type questions (i.e. "what are the last four digits of your social security number", "what are the three numbers on the back of your debit card", etc).22:33, 19 April 2024 (UTC)

The only correct answer(s) to "who played the drums" would be "the drummer", or "twelve drummers", but I would accept Phil Collins, Alex Van Halen, or Ringo Starr for half a point each [[Special:Contributions/108.162.241.100|108.162.241.100]] 02:40, 20 April 2024 (UTC)
: "Who played the drums" is Keith Moon; in this cryptic clue, "Who" is the name of the band, and "played the drums" indicates the drummer; hence the answer is Keith Moon, the drummer of The Who. [[User:Sabik|Sabik]] ([[User talk:Sabik|talk]]) 04:29, 22 April 2024 (UTC)
:Clearly the correct answer is 'Animal'.[[Special:Contributions/172.71.178.176|172.71.178.176]] 08:45, 22 April 2024 (UTC)

I asked my Mom these questions & she said the answer to #7 so flatly: ''Boeing ''
[[User:ProphetZarquon|ProphetZarquon]] ([[User talk:ProphetZarquon|talk]]) 02:44, 20 April 2024 (UTC)

On the Capital of Australia: Melbourne hosted parliament before Canberra was built, and Jervis Bay was part of the ACT: https://en.wikipedia.org/wiki/Jervis_Bay_Territory

Are there people outside of the USA that are surprised to learn that Washington D.C. is the capital of the USA, rather than New York, Los Angeles, Chicago etc. due to its relatively small population? ("only" ~670000 in 2024) [[User:These Are Not The Comments You Are Looking For|These Are Not The Comments You Are Looking For]] ([[User talk:These Are Not The Comments You Are Looking For|talk]]) 06:50, 21 April 2024 (UTC)

I came here all prepared to say that the Title Text should have Ontario, Canada as a (likewise correct) answer, but I see somebody already put that into the table, LOL! I feel like the "More Reasonable" version of the planet question should NOT mention Pluto, it should be the question IMPLIED in the comic whose answer is 9 (such as "How many planets were originally in our Solar System", but without the ambiguity of "originally". Basically a question whose answer is 9, pushing people to include Pluto, while allowing people the mistake of saying the current answer of 8, but mentioning Pluto would ruin that/the question). [[User:NiceGuy1|NiceGuy1]] ([[User talk:NiceGuy1|talk]]) 05:52, 20 April 2024 (UTC)

There could also be a person Named "London" who is located somewhere, perhaps in the same bar (or not) -- [[Special:Contributions/172.70.46.71|172.70.46.71]] 12:13, 20 April 2024 (UTC)
:https://en.wikipedia.org/wiki/London_%28name%29 [[Special:Contributions/172.70.42.31|172.70.42.31]] 16:27, 20 April 2024 (UTC)

I thought I knew the minimum size of a lake by definition, at least in the US, but I just found different authorities asserting 1, 10, and 20 acres as the distinction between a lake and a pond. Two non-metric distinctions are that a lake has an aphotic (dark) zone, or a lake is fed and drained by a river, but they don't help here. [[Special:Contributions/172.70.43.53|172.70.43.53]] 16:22, 20 April 2024 (UTC)

For the love of god can we stop saying that Pluto was "demoted" to a dwarf planet? It didn't have its category changed, it had its category defined (for the first time!). It was a founding member of a newly named category. And it's not like planets are better than dwarf planets, they're just different. (I'm going to die on this hill, ain't I?)
[[Special:Contributions/172.68.34.16|172.68.34.16]] 01:35, 21 April 2024 (UTC)
:Yes, you probably are. When it happened, many people, including astronomers, considered it a downgrade. There's some prestige in being a planet -- the Sun and the planets are considered the most significant objects in the Solar System. The qualifier suggests that it's less important than the "real" planets, and was kicked out of the planet club for being deficient in some way. Maybe we need a campaign from dwarf humans to remind everyone that they're just smaller, but they have no less dignity. [[User:Barmar|Barmar]] ([[User talk:Barmar|talk]]) 23:41, 21 April 2024 (UTC)
:I'll cheerfully die there with you. But I'll also point out while I'm doing so that if it's a 'dwarf ''planet''', then clearly it is still a planet. I mean, people would look at you funny if you tried to claim that a dwarf elephant wasn't an elephant. And perhaps more pertinently, a dwarf star is still a star. So the answer to 'how many planets are in our solar system?' is 'at least 16 that we know of - depends how far down you count. Unless you discount the gas giants, in which case you need to subtract four. Or maybe two. Wait - how many are we on now again?'[[Special:Contributions/172.71.178.157|172.71.178.157]] 11:14, 22 April 2024 (UTC)
:I'll happily agree with you, and I've often said the same as Mr./Ms 178.157 above me that "dwarf planet" still sounds like a type of planet to me. However, it WAS demoted. Officially, the Solar System is now 8 planets. Pluto is no longer an official member of the Solar System, despite not leaving or being destroyed. THAT'S the part that's bothersome, a statistic from our childhood - "The Solar System has 9 planets" - was changed, seemingly unnecessarily, since nothing ACTUALLY happened to Pluto. Why can't a Dwarf Planet count as a member? Why kick Pluto out? Colloquially, though not politically correct, Little People have been called dwarves, should they therefore not count as people? Are they too small to be "people"? They have a qualifier added to "people", just as Pluto has a qualifier added to "planet", after all. :) It doesn't seem difficult to bring this to somewhere where it's more clearly wrong. [[User:NiceGuy1|NiceGuy1]] ([[User talk:NiceGuy1|talk]]) 04:50, 28 April 2024 (UTC)

For the planet question there's also Theia, which is theorized to have been a planet prior to smashing into proto Earth and forming the moon and modern larger Earth. So there used to be at least nine planets by the current definition in our solar system.
[[Special:Contributions/162.158.155.20|162.158.155.20]] 03:50, 21 April 2024 (UTC)

For question #8, it's not that mathematicians were idling around. A lot of partial results were made, see Wiki. [[Special:Contributions/172.71.160.33|172.71.160.33]] 08:22, 21 April 2024 (UTC)

I was confused by this question at first. The answer is "no." It is disproved by example. 21+3=24 21 is not a prime. 24 is even. {{unsigned ip|162.158.154.65|19:38, 21 April 2024}}
:24 is the sum of many pairs of numbers. Amongst those pairs (as with any even number >2) may be one ore more pairs of primes (even 2, if you count 1 as a prime - though generally one doesn't). 24 is (just looking at the odd numbers >1) 21+3, 19+5 (both primes!), 17+7 (both primes), 15+9 (no), 13+11 (both primes) and then of course the reverses of these (if you count those). So 24 is the sum of two primes (three, or six, times). 4 is just the sum of 2+2, 6 is only 3+3, 8 is only 5+3... And every even number checked from there on up ''can'' be expressed as the sum of two primes (at least once). But is there ever a point at which there is an even number that is not?
:With 3, 5 and 7 being primes, then you can definitely say that if N is an even number that has (or even relies upon) a solution with 3, then N+2 and N+4 are, which would be answerable by the same sum but with 5 or 7 instead. Plus N+8 (3->11), N+10 (3>13). And maybe you can fill in the N+6 and N+8 by the ''other'' prime used being also a suitable twin prime that you can swap out for the P±2 partner. But only if it's the right prime of any given pair, and not all primes are twins, so there's a lot more to consider about whether any given advancement up the even-numnber ladder can be answered by a suitable pair of primes.
: e.g. 15440=7717+7723 (one possible solution). 15442 therefore needs +2 to that. But 7717 and 7723 ar adjacent primes that areen't two apart (so you can't just add two to 7717 and have 7723 + 7723) and the next adjacent primes are 7703 and 7727 (not two apart, and not obviously useful to go 7717->7703, either). So there must be another solution (theoretically, but also proven by having been checked). By doing ''quite a bit'' of to-and-fro (if that's how we're doing it), we can finally announce that 15442=7649+7793 (but I also found 7523+7919, 7541+7901, 7559+7883 and 7589+7853, before I stopped the search). So It works up to 15442.
:15444? Well, neither 7649 or 7793 have a +2 prime-partner. But 7589 is followed by 7591 (as a new partner to 7853). And 7559 is followed by 7561, so 7561+7883 would also be an answer. There will (probably) be many others.
:But will there ''always'' be many others? Or even just the one? I'm sure someone has been counting how many unique (bidirectional) solutions each number has, and probably there are some that ''only just'' get the requisite single pair of primes that sum to it. Could it ever not even manage that? Those actually familiar with the efforts to prove the conjecture would know, rather than a fool like me coming fresh to the problem. (Relatively, that is... I already knew about it, but I've never tried to wade into the actual theory until right now, and this random example I set up to 'explain' this, just now.) [[Special:Contributions/172.71.242.175|172.71.242.175]] 21:01, 21 April 2024 (UTC)
:: It looks like it was a mistake on my part to infer that the question meant "exclusively the sum of two primes." Allen [[Special:Contributions/162.158.62.237|162.158.62.237]] 15:12, 22 April 2024 (UTC)
::: Ah, I see. Well, ''no'' number is "''just'' the sum of two primes" (4=3+1, and 1 isn't prime; or 4+0, and neither of those are; all before considering negative, fractional or even complex/quaternian 'summations' (e.g. (2+3i)+(2-3i)=4), which primes definitely are not part of, regardless of how they together become '4'...), so "Is every even number greater than 2 the sum of two primes?" sort of has to imply only that there "are two primes which sum", rather than ever "the only numbers which sum will all be primes". Hyper-pedanticity (or deliberate linguistic trickery) aside, that's really not in question.
::: But nice to understand where you were coming from, at least. [[Special:Contributions/172.70.163.49|172.70.163.49]] 20:15, 22 April 2024 (UTC)
*About Q2: the "number of sides" may be "the average number of sides" of a Platonic solid, which is 10, despite having no Platonic decahedron
*About Q10: with a correct list of answers, it ''may'' be kept as-is with having to select the drummer(s).
[[Special:Contributions/162.158.78.38|162.158.78.38]] 10:47, 22 April 2024 (UTC)
:That assumes that the Platonic solids occur in equal numbers in the universe. In actuality, there are probably more of some than others, which would throw your average off. Alternatively, you could argue that none of any of them actually exist (by virtue of them being Platonic, and any example being an imperfect approximation), in which case the answer is either 'none' or 'unanswerable', since you can't average nothing.[[Special:Contributions/172.70.85.156|172.70.85.156]] 12:39, 22 April 2024 (UTC)

The smallest lake in the world is Snowf Lake. {{unsigned ip|172.70.34.58|02:22, 23 April 2024}}

The title text reminds me of some old viral social media post where an alleged smart-a** teacher made a test question that was like "What is the opposite of 'old'? (a) new (b) young". (I don't remember if it was specifically mentioned, but the implication was that the question would then be graded completely arbitrarily.) [[User:Zowayix|Zowayix]] ([[User talk:Zowayix|talk]]) 21:01, 23 April 2024 (UTC)

== Smallest lake ==

IMHO there is a reasonable interpretation of the smallest lake question: what is the smallest officially named naturally occurring body of freshwater. [[User:Stevage|Stevage]] ([[User talk:Stevage|talk]]) 06:31, 24 April 2024 (UTC)
: Does this go so far as to include "...that has the word 'lake' in it"? (Or ’lac’, or other acceptably ''exact'' linguistic equivalent, perhaps?)
: There is the "How many lakes are there in the {{w|Lake District}}?" classic British quiz question. Possible answer: there are perhaps 21(ish) 'lake-like' water bodies, but only Bassenthwaite Lake is ''called'' a lake, the rest are 'water's, 'mere's, 'tarn's (maybe then "not-a-lake", like "lochens are not lochs") and a handful of reservoirs (maybe not a lake, for being not natural?). Thus to avoid trouble, and especially how far to go to down the "pond, pool and puddle" route, the only truly unambiguous answer, once you know the 'trick', is "one". (Noting that "Lake Windermere" is a common misnomer for the body of water that is really just "Windermere", the actual largest "English lake". It having perhaps been tautologically enhanced to distinguish from "Windermere, the town", the main settlement in the area that was actually called Birthwaite prior to the arrival of the railway station that took the 'lake' name and then just rolled with it for the benefit of the unwashed/washed visiting masses.)
: ...this being sort of summarised in the Explanation at one point, actually, but got considered surplus. But a "smallest lake in the Lake District" question of this kind now explicitly excludes all the arguments about whether that means Easedale Tarn (by most linear dimensions) or Hayeswater (volumetric), whether or not you subscribe to other physical classification exclusions or the "Lake Windermere" name. [[Special:Contributions/172.70.163.48|172.70.163.48]] 08:54, 24 April 2024 (UTC)

2448: Eradication

2024-07-10T13:36:04Z

172.70.162.17: /* Explanation */ fixed tvtropes link

{{comic
| number = 2448
| date = April 9, 2021
| title = Eradication
| image = eradication.png
| titletext = When you get to hell, tell smallpox we say hello.
}}

==Explanation==
This is another comic in the [[:Category:COVID-19|COVID-19 series]] related to the {{w|COVID-19 pandemic}}.

[[Megan]] and [[Cueball]] are discussing the possibility of SARS-CoV-2 eventually becoming "another circulating common cold virus". This was considered to be a [https://science.sciencemag.org/content/371/6530/741 serious possibility], as a combination and vaccines and acquired immunity cause most people to have some degree of immunity as they age. This is particularly likely because SARS-CoV-2 was not believed to pose significant risk to small children, and if most people are infected with it in childhood, they'll likely be immune as adults. Multiple other coronaviruses are common in the human population, and fall under the category of "the common cold", causing only minor and temporary symptoms, with little serious risk for most people.

If SARS-CoV-2 does transition to being a minor disease, there will be little reason to continue focused eradication efforts, because the ongoing harm will be too little to justify such efforts. It's extremely difficult to wipe out a virus altogether, as it requires every human population to be either isolated from the disease, or vaccinated until {{W|herd immunity}} is achieved. There are only two viruses which have been totally eliminated in the wild: {{W|Smallpox}} and {{W|rinderpest}}, and rinderpest infects only cattle and other ruminants, not humans. The elimination of smallpox was one of the greatest public health accomplishments of the 20th century, and resulted from an aggressive and ambitious global vaccination effort. Smallpox is now considered to be extinct in the wild, with only a small number of samples still preserved in government labs.

Where diseases continue to be dangerous, ongoing global efforts are made to eliminate them entirely (polio, measles and rubella are currently targets of such programs). If a disease ultimately becomes more or less harmless, its elimination is less of a priority.

The joke of this strip is that, in the aftermath of the COVID-19 pandemic, Megan feels so much rage and ill-will toward the disease that vaccination efforts are no longer only a matter of protecting health, but an expression of hostility toward the virus. Her argument is that, even if global elimination efforts are no longer justified by the danger of the virus, they should be pursued "out of spite". Like many other strips in this series, the characters tend to anthropomorphize the virus, treating it as an intelligent and sentient enemy, rather than mere force of nature. Given that mindset, the idea that the virus could cause so many deaths and so much disruption, and then continue to exist without consequence, would upset many people. Cueball agrees with her perspective, approvingly referring to it as "revenge". Cueball has also previously shown a [[2306|merciless attitude towards endemic infections]], even those that aren't particularly deadly, and so the idea of eliminating one entirely would probably appeal to him on its own merits.

The title text refers to the aforementioned extinction (in the wild) of smallpox. This is {{tvtropes|PreMortemOneLiner|the type of line one might see in fiction}}, delivered to someone who is about to be killed, taunting them about the death of one of their friends or associates. The line treats the virus like a villain in an action movie, and revelling in the fact that we're finally going to kill it.

==Transcript==
:[Megan holding a hand up, palm held out, is walking with Cueball.]
:Megan: Even if the threat eventually fades, thanks to vaccines and stuff,

:[They walk on, both with their arms down.]
:Megan: And it becomes just another circulating common cold virus,

:[Megan holds her hand up in a fist, while Cueball hold his hand to his chin as they walk on.]
:Megan: I think we should pursue global eradication of SARS-CoV-2 out of ''spite''.
:Cueball: Revenge-based public health policy. I like it.

{{comic discussion}}

[[Category:COVID-19]]
[[Category:Comics featuring Megan]]
[[Category:Comics featuring Cueball]]

2948: Electric vs Gas

2024-06-21T08:37:09Z

172.70.162.17: /* Explanation */

{{comic
| number = 2948
| date = June 19, 2024
| title = Electric vs Gas
| image = electric_vs_gas_2x.png
| imagesize = 284x385px
| noexpand = true
| titletext = An idling gas engine may be annoyingly loud, but that's the price you pay for having WAY less torque available at a standstill.
}}

==Explanation==
{{incomplete|Created by a HYDROGEN INTERNAL COMBUSTION ENGINE RUNNING A GENERATOR. Do NOT delete this tag too soon.}}

{{w|Internal combustion engine|Internal combustion engines}} (ICEs) are the most common technology used to propel motor vehicles. In US vernacular, the most common motor fuel is known as "{{w|gasoline}}", or "gas" for short, leading to these engines being referred to as "gas engines". Gasoline is a product of petroleum refinement, leading to the name "petrol" being used in other dialects.

{{w|Traction motor|Electric motors}} would seem the more well-suited method for propelling a vehicle, and as early as 1885 were an actual form of motor car engine with which the fledgling internal combustion engine had to compete. Despite this early popularity, over most of the 20th century electric motors were sidelined in everyday car design, as supplying the electricity was considered to be impractical for most forms of transportation. Modern forms are rapidly rising in popularity, and now constitute 18% of all global vehicle sales.{{acn}} [[Randall]] has long been a strong proponent of electric vehicles.

In this strip, [[White Hat]] claims to be comparing the pros and cons of electric motors and gas engines. The joke is that every point he makes goes in favor of electric motors. Despite it being posed as a dilemma, it may be very clear which side of the debate White Hat is promoting. On the other hand, it may indicate that one of the things we might consider a pro in electric motors (the instantaneous power now available, exceeding that of many non-electric engines) he would consider a problem — perhaps more accurately, a problem with the ''drivers'' of such vehicles — recklessly using the enhanced capabilities to accelerate to high speeds at all opportunities, whether safe to do so or not.

The strip offers the following points in favor of electric motors:

* "Cleaner and more efficient". ICEs produce and vent harmful combustion products and toxic chemicals, while electric motors produce no emission byproducts at the point of use. The efficiency of both gas and electric motors vary, but the typical ICE vehicle in the US converts around 25% of available energy into motion, while the typical electric vehicle is in the neighborhood of 80%. Even when considering inefficiencies in the source production and transmission and storage and release of energy, battery-driven electric vehicles are generally more efficient than internal combustion propelled vehicles[https://www.factcheck.org/2024/02/electric-vehicles-contribute-fewer-emissions-than-gasoline-powered-cars-over-their-lifetimes/]. It should be noted that all of this refers to the motors only, and ignores how the fuel and electricity are produced, or the wider environmental impact of the vehicle.

* "More powerful". Electric motors are able to deliver a lot of power from a small motor ''if'' an ample energy supply is available, and can do so 'on demand', often far quicker than a fuel-powered engine that has to put its power through a gearbox in order to service a wide range of road velocities, from standstill to the eventual top speed. Due to battery limitations, short or partial runtime use cases (such as dragsters, hand tools, yard tools, toys and electric scooters) net the most benefit from the small size of a high-powered electric motor.

* "Annoyingly loud". ICEs, by their nature, produce significant noise. Despite noise attenuation measures such as mufflers, they contribute significantly to urban noise. Properly designed electric motors are nearly silent. In particular, {{w|blowoff valve|turbocharger blowoff valves}} make particular noises that are completely lacking in an all-electric vehicle being driven at a similar performance level. This might legitimately be considered a problem, though, when everyone is used to a rapidly approaching vehicle providing a very noisy warning of its approach. EV makers have sometimes added [https://www.businessinsider.com/electric-car-ev-fake-engine-sound-hyundai-dodge-toyota-2023-7 fake ICE noises] to appeal to older drivers, and in the U.S. and some other countries, EVs are required to have {{w|Electric_vehicle_warning_sounds|warning sounds}} at low speeds for pedestrian safety.

* "WAY less {{w|torque}} available at standstill". ICEs need to continually operate within a specific range of rotational speeds, which means that a complex system of {{w|transmission|transmission gearing}} is needed to convert this motion into the specific speeds needed at the wheels. When starting from a standstill, this means that torque must be applied to the wheels relatively gradually to avoid stalling the engine. In addition, when a vehicle is standing still, the motor is typically idling at (very) low speed and must be sped up before it produces significant acceleration. Electric motors, in contrast, generally produce their peak torque when at a standstill. This results in electric vehicles having significantly better acceleration and engine responsiveness. Again, this could cause a legitimate problem with drivers changing from ICE to electric motors, because the new cars accelerate more than the driver is used to and provide different feedback. The audible clues of gear changes, whether from automatic or manual systems, are part and parcel of what many people have grown up with and come to rely on in anticipating what might need paying attention to.

The strip offers no points in favor of internal combustion (gas) motors, even those framed as if they were such.

It should be noted that White Hat is deliberately confining his arguments to electric vs gas ''motors'' rather than electric or gas-powered ''vehicles''. Doing so ignores the basic reason why internal combustion vehicles have long dominated transportation in certain specific countries: hydrocarbon fuels are a very dense and fairly easy to handle form of energy ''storage''. Providing electrical power to a moving vehicle requires either that the vehicle remain in contact with a power line, like a train, a tramway, a subway does, or a high-capacity battery and the ability to recharge that battery in a reasonable amount of time. More popular in the USA is a hybrid system, where a combustion engine provides at least some of the power to an electric motor, which was impractical until comparatively recently. Other methods, such as hydrogen fuel cells (a form of "combustion" that can be used more directly to form electricity), have been proposed, but remain niche, due to various barriers to adoption, or experimental.

A more comprehensive comparison would include many more factors, both against and in favor of electric cars.

Issues raised with electric vehicles typically include:
* Higher cost of purchase (primarily due to the cost of batteries and, in the USA, now a 100% tariff on Chinese EVs), although partially offset by lower costs of operation
* Long charging times compared to refilling a gas tank (there are some approaches which mitigate this by operating either very high powered chargers or a battery swap model, rather than charging in-car, but these are not widely adopted)
* Relatively limited range ([https://ev-database.org/compare/electric-vehicle-longest-range 100-400 miles per charge] as of 2024)
* Shortened range in hot weather and significantly shortened range in cold weather (although ICE vehicles also have this problem)
* Limited charging infrastructure in some places (although ICE vehicles also have this problem)
* Higher vehicle weight, and resulting higher particulate emissions (from tires, but not brakes, because EVs use of regenerative braking reduces wear on their traditional brakes)
* Reliance on various mineral and metal extraction industries in the building of batteries
* Issues disposing of/recycling batteries at end of life
* Increased demand on electricity production

Advancing technologies, political policies, and economic realities are rapidly changing the relevance and seriousness of these points. The current adoption rate of EVs (well under 50%, even in California) may indicate that the general population thinks the cons still win (though to some extent this is a reflection of an 'installed base' of ICE vehicles already on the roads).

Other real (or asserted) pros of electric cars are also not mentioned:
* Lower costs of operation (partially offset by higher costs of purchase)
* Can "fill" them at home or while parked without having to stay with them (partially negates the "long charging times" con)
* Higher reliability
* Lower carbon footprint, and reduced dependence on the fossil fuel industry

Future economic and political policies may make fueling and maintenance of gas powered personal cars an issue. If in 10 years 100% of cars sold are electric, then after the average 12 year vehicle lifespan of fuel cars has ended it may be that legacy fuel stations are harder to find (and recharging stations easier) in comparison to the other type. At the 20-year mark, most gasoline-fueled cars will be gone and the economic value of providing ubiquitously available fuel to a dwindling number of cherished hold-out 'classic' vehicles will have forced the supply chains to pivot. Maintenance for such cars may become an art of the past and finding a specialized mechanic may be necessary (as, until recently, it would have been difficult to find an independent EV-qualified mechanic). In the EU, the sale of new ICE cars is banned from 2035 in an effort to move to EVs, and other jurisdictions are adopting similar policies.

Especially in the United States, this topic is highly contentious for political, economic, engineering, and [https://en.wikipedia.org/wiki/Rolling_coal tribal] reasons (as a quick look at the edit history of this page will confirm).

==Trivia==
The etymology of "gasoline" is disputed: it may derive from "gas", or perhaps from the brand-name fuel "Cazeline" or "Cazelline" sold by a man called John Cassell; "Petrol" has also been a registered brand name for other businesses' motor-fuel products.

While ICE vehicles have, to date, proven more popular than electric equivalents, worldwide, bicycles have been outselling cars [https://www.bikeradar.com/features/bike-vs-car-the-sales-race|since at least WWII].

==Transcript==
:[White Hat, with his palm raised, is talking to Cueball.]
:White Hat: Electric motors and gas engines each have their pros and cons.
:White Hat: On one hand, electric motors are cleaner and more efficient. On the other hand, electric motors are more powerful.
:White Hat: So it's hard to say which is better overall.

{{comic discussion}}

[[Category:Comics featuring White Hat]]
[[Category:Comics featuring Cueball]]
[[Category:Engineering]]
[[Category:Climate change]]

Talk:2946: 1.2 Kilofives

2024-06-15T20:51:41Z

172.70.162.17: Not weird, just old.

== Challenge: Come up with a way like this to say the comic number #2946. ==

Challenge: Come up with a way like this to say the comic number #2946. [[User:Barmar|Barmar]] ([[User talk:Barmar|talk]]) 03:00, 15 June 2024 (UTC)
:How about 4.91 hectosixes? [[Special:Contributions/172.69.33.190|172.69.33.190]] 04:19, 15 June 2024 (UTC)
:A kibitwo, four decascore, four score and eighteen. Two octooctotwentythrees and two. A gross-score, three score and 6. [[User:Jordan Brown|Jordan Brown]] ([[User talk:Jordan Brown|talk]]) 05:00, 15 June 2024 (UTC)
:A semidozen tetrahectaenneacontahena. [[User:Xkcd machine guy|Xkcd machine guy]] ([[User talk:Xkcd machine guy|talk]]) 08:25, 15 June 2024 (UTC)
:A decapentagross minus a semiennea. [[User:Xkcd machine guy|Xkcd machine guy]] ([[User talk:Xkcd machine guy|talk]]) 10:10, 15 June 2024 (UTC)
Interestingly, four score and seven is exactly how you say 87 in French (quatre-vingt sept) and Basque (laurogeita zazpi). Both count on base 20. [[Special:Contributions/172.70.90.138|172.70.90.138]] 05:16, 15 June 2024 (UTC)

== Comic discussion ==

Fun fact: libqalculate and the "Qalculate"/"qalc" programs can just deal with the title text:
qalc "50milli score"
50 × (10^−3) × score = 1
But it fails on the main part, the best that works is:
qalc "1.2kilo 5"
1.2 × 10³ × 5 = 6000
"five" gets interpreted as Euler's number × imaginary unit × unknown "f" × unknown "v". On my old laptop, I must have some other configuration or maybe an old version, because there it gets interpreted as 0×i×e=0, so you can enter "five plus five" and get 0. Maybe another challenge would be to get arbitrary misleading results out from equations like this. [[User:Fabian42|Fabian42]] ([[User talk:Fabian42|talk]]) 05:59, 15 June 2024 (UTC)

Perhaps East Hills NY, but their "Welcome" boards don't mention population, https://www.google.co.uk/maps/@40.7805262,-73.632634,3a,15y,25.75h,92.88t/data=!3m6!1e1!3m4!1sf5guvv2tETuyn0f_lSFh7A!2e0!7i16384!8i8192?hl=en&coh=205409&entry=ttu so this might just be a random name that R. came up with[[User:Zeimusu|Zeimusu]] ([[User talk:Zeimusu|talk]]) 07:40, 15 June 2024 (UTC)

In the comic *fives* does not stand for the number five alone, but for five people. So using it with a prefix is more valid. Sebastian --[[Special:Contributions/172.68.110.4|172.68.110.4]] 10:15, 15 June 2024 (UTC)
: Five kilopeople would be valid.
: [[Special:Contributions/172.70.91.63|172.70.91.63]] 10:34, 15 June 2024 (UTC)

I think it would have made more sense to say "half a kilodozen". --[[Special:Contributions/141.101.69.45|141.101.69.45]] 11:54, 15 June 2024 (UTC)
:It's just slightly off a gross of ultimate answers. [[Special:Contributions/172.70.162.186|172.70.162.186]] 16:30, 15 June 2024 (UTC)

I wonder why Randall chose to make Cueball the character saying that and not Black Hat/classhole. [[User:Turquoise Hat|Turquoise Hat]] ([[User talk:Turquoise Hat|talk]]) 15:35, 15 June 2024 (UTC)
:Live long enough to become the villain.
:[[User:ProphetZarquon|ProphetZarquon]] ([[User talk:ProphetZarquon|talk]]) 17:14, 15 June 2024 (UTC)

I realized that kilofives can be abbreviated as **k5**, as in "the population is 1.2 k5". Or if you're a roman, as **D**. [[Special:Contributions/172.71.22.92|172.71.22.92]] 16:30, 15 June 2024 (UTC)

Wouldn't CIↃ have been rendered as <nowiki></nowiki>?
[[User:ProphetZarquon|ProphetZarquon]] ([[User talk:ProphetZarquon|talk]]) 17:22, 15 June 2024 (UTC)

I like it. I'm gonna start using this technique more. [[User:Psychoticpotato|P?sych??otic?pot??at???o ]] ([[User talk:Psychoticpotato|talk]]) 20:04, 15 June 2024 (UTC)

The weird thing is, this wasn't a weird way to say a number, it was just an old way to say it. See Psalm 90:10 in King James Bible more examples. [[Special:Contributions/172.70.162.17|172.70.162.17]] 20:51, 15 June 2024 (UTC)

2944: Magnet Fishing

2024-06-10T14:58:04Z

172.70.162.17: Fixed typos in transcript

{{comic
| number = 2944
| date = June 10, 2024
| title = Magnet Fishing
| image = magnet_fishing_2x.png
| imagesize = 522x356px
| noexpand = true
| titletext = The ten-way tie was judged a ten-way tie, so no one won the grand prize, a rare fishing monopole.
}}

==Explanation==
{{incomplete|Created by a BOT - 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.}}
10 characters are stood on a bridge over a river. They have all cast fishing magnets over the edge. However, their magnets have all stuck together due to being too close and none have reached the river below. All 10 characters appear confused.

The caption below them says, "The first, and last, World Magnet Fishing Championship."
{{comic discussion}}

2941: Cell Organelles

2024-06-05T08:26:05Z

172.70.162.17: /* Explanation */

{{comic
| number = 2941
| date = June 3, 2024
| title = Cell Organelles
| image = cell_organelles_2x.png
| imagesize = 563x451px
| noexpand = true
| titletext = It's believed that Golgi was originally an independent organism who was eventually absorbed into our cells, where he began work on his Apparatus.
}}

==Explanation==
{{incomplete|Created by a GOLGI ENDOPLASMIC RETICULUM. Do NOT delete this tag too soon.}}

This comic shows a {{w|Cell (biology)|biological cell}} diagram with a mix of real and fictional {{w|organelle}}s, giving both accurate {{w|Cell biology|cell biology}} terms and humorous ones. Actual cell components include the nucleus, mitochondria, and Golgi apparatus, while unrelated concepts come from geology, engineering, anitvirus software, and even Star Wars. Labels like "evil endoplasmic reticulum" and "sticky endoplasmic reticulum" are variations of real cellular organelles. Other labels like "pith," "mantle," and "Vitreous humor," are borrowed from other types of circular cross-sectional diagrams (e.g., of fruit, planets, and eyeballs).

The title text is a fictional backstory to the {{w|Golgi apparatus}}, an essential cell organelle involved in processing and packaging proteins. It suggests that {{w|Camillo Golgi}}, the scientist who discovered the Golgi apparatus, was originally an independent organism that was supposedly absorbed into our cells, where it then started working on what is now known as the Golgi apparatus. The joke is a satirical take on {{w|Symbiogenesis|endosymbiotic theory}}, which posits that certain organelles within {{w|Eukaryote|eukaryotic}} cells, like {{w|mitochondria}} and {{w|chloroplasts}}, originated from independent symbiotic {{w|Prokaryote|prokaryotic organisms}} that were absorbed by a host {{w|germ cell}}. Golgi is drawn in the comic as a cute little alien.

{| class="wikitable sortable"
|-
! Label
! Meaning
! Real?
! Cell organelle?
! Explanation
|-
| {{w|Smooth endoplasmic reticulum}}
| A network of tubular membranes within the cytoplasm of the cell, involved in the transport of materials.
| Yes
| Yes
| A standard term for the smooth (i.e., not ribosome-covered) portion of the {{w|endoplasmic reticulum}}.
|-
| {{w|Lithosphere}}
| The rigid outer part of the earth, consisting of the crust and upper mantle.
| Yes
| No
| Term from geology; part of the Earth's crust. Labeled cross-sectional diagrams of cells and of the layers of the Earth are commonly found in science textbooks.
|-
| {{w|O-ring}}
| A mechanical gasket in the shape of a torus; used to seal connections.
| Yes
| No
| Engineering term. Both the o-ring and pith are drawn connected to the inner cell membrane. Made famous in pop culture for being the root cause of the {{w|Space Shuttle Challenger disaster}}.
|-
| {{w|Pith}}
| The central tissue in plants, used for nutrient transport.
| Yes
| No
| Botanical term. Both the pith and o-ring are drawn connected to the inner cell membrane.
|-
| {{w|Cell nucleus|Nucleus}}
| The central and most important part of an object, forming the basis for its activity and growth.
| Yes
| Yes
| The cell nucleus is an actual cell organelle which houses {{w|DNA}}.
|-
| {{w|Nucleolus}}
| A small dense spherical structure in the nucleus of a cell during {{w|interphase}}.
| Yes
| Yes
| Actual cell organelle, involved in {{w|ribosome}} production.
|-
| Nucleoloulous
| Not a real term.
| No
| No
| A humorous continuation of the terms "nucleus" and "nucleolus."
|-
| {{w|Nucleon}}s
| Protons and neutrons in the nucleus of an atom.
| Yes
| No
| While cells contain nucleons, the depicted circles are far larger than actual nucleons.
|-
| Drain plug
| A stopper for a drain.
| Yes
| No
| A plumbing term, which could refer to a {{w|porosome}}. Even small, temporary damage to the integrity of the {{w|cell membrane}} puts the cell at immediate and great risk of death.
|-
| Evil endoplasmic reticulum
| Not a real term.
| No
| No
| The rough endoplasmic reticulum is covered in ribosomes; the "evil" endoplasmic reticulum in the comic is covered in twice as many, and is thus twice as rough, making it evil.
|-
| {{w|Hypoallergenic}} filling
| Materials that cause relatively fewer allergic reactions.
| Yes
| Technically not incorrect
| Consumer product term, used e.g. for pillows and mattresses. If the {{w|cytoplasm}} doesn't cause allergic reactions within the cell, it is hypoallergenic.
|-
| Weak spot
| A vulnerable point.
| Yes
| Conceivably
| {{w|Cell membrane}} surfaces do indeed vary in strength, often due to the presence of organelles such as {{w|ion channel pore}}s or {{w|porosome}}s, both of which can be leveraged by viruses to enter cells.
|-
| {{w|Mitochondria}}
| Organelles that generate energy for the cell.
| Yes
| Yes
| Actual cell organelles. Mitochondria are widely known as the "powerhouse of the cell," a phrase originally coined in 1957 by biologist {{w|Philip Siekevitz}}[https://www.scientificamerican.com/article/powerhouse-of-the-cell/] which came to prominence online in the mid-2010s.{{acn}}
|-
| {{w|Midichlorians}}
| Fictional microorganisms in the {{w|Star Wars}} universe, which confer Force sensitivity and thereby {{w|Jedi}} associated powers.
| No
| Fictional
| It's unclear whether {{w|George Lucas}} intended for "midi-chlorians" to be {{w|Symbiogenesis|endosymbiotic organelles}} or internal {{w|Symbiosis|symbionts}}.
|-
| {{w|Chloroplast}}s if you're lucky
| Organelles in plant cells responsible for {{w|photosynthesis}}.
| Yes
| Yes, but in plants and plantlike organisms
| Actual cell organelles, found in plant cells and those of several different lineages of non-plant microorganisms and seaweeds. The phrase "if you're lucky" alludes to the good fortune that an organism, be it plant, animal, or microbe, gains by being able to photosynthesize, getting energy from sunlight, rather than have to run around all the time chasing energy. This benefit makes chloroplasts {{w|Kleptoplasty|worth stealing}}.
|-
| Human skin
| The outer covering of the human body.
| Yes
| No
| Skin is a [https://en.wikipedia.org/wiki/Tissue_(biology) tissue] (multicellular structure). The idea that a complex tissue can be wrapped around a single cell, as if it were a cell wall, or outer {{w|cell membrane}}, or {{w|extracellular matrix}}, is patently, and humorously, absurd.
|-
| {{w|Carbonation}}
| {{w|Carbon dioxide}} dissolved in a liquid.
| Yes
| No
| Carbonation causes soda pop and similar liquids to bubble, fizz, foam, and {{w|effervesce}}. The little dots depicted in the comic look like carbonation bubbles.
|-
| Golgi
| {{w|Camillo Golgi}} (1843–1926) was an Italian biologist and {{w|pathologist}} who discovered the Golgi apparatus; known also for his works on the central nervous system.
| Yes
| No
| The real Golgi was not and is not a tiny alien being who merged with our cells, as the comic and title text imply.{{Citation needed}}
|-
| {{w|Golgi apparatus}}
| A complex of {{w|vesicles}} and folded membranes involved in secretion and intracellular transport.
| Yes
| Yes
| Actual cell organelle, which takes {{w|polypeptide}} chains from the rough endoplasmic reticulum via transport vesicles and processes them into their protein structure before sending them (again via vesicles) to their destination such as an organelle or outside of the cell.
|-
| {{w|Norton AntiVirus}}
| A software product designed to protect computers from malware.
| Yes
| No
| Computer viruses and biological viruses are completely different, and systems designed to counter one generally don't work for the other. Many cell types do have antiviral mechanisms, notably the {{w|CRISPR}} (Clustered Regularly Interspaced Short Palindromic Repeats) DNA sequences in prokaryotes, which resist viral (bacteriophage) infection. However, the cell shown is not prokaryotic, since it contains a nucleus.
|-
| Sticky endoplasmic reticulum
| Not a real term, although parts of the reticula have sticky pockets.[https://www.frontiersin.org/articles/10.3389/fcell.2023.1156152/full]
| No
| No
| Another humorous twist on the actual types of endoplasmic reticula.
|-
| {{w|Pleiades}}
| A cluster of stars in the constellation Taurus.
| Yes
| No
| Even a single star is far too big to fit in a cell{{Citation needed}}. The labled cluster in the comic looks like the actual constellation, as if this were a depiction of the night sky.
|-
| Natural flavor
| Flavoring derived from natural sources.
| Yes
| Conceivably
| A common ingredient on labels, usually meaning any substance to add flavor, aroma, or both, other than synthetic chemicals which are referred to as artificial flavors.
|-
| {{w|Cellophane}}
| A thin, transparent sheet made of regenerated {{w|cellulose}}.
| Yes
| No
| A type of packaging material. A {{w|cell wall}} is indeed made of cellulose, though not in the form of cellophane. Also, this drawing looks more like an animal cell, which unlike plants and fungi, do not usually have a cell wall.
|-
| {{w|Rough endoplasmic reticulum}}
| Endoplasmic reticulum with {{w|ribosomes}} attached, involved in protein synthesis.
| Yes
| Yes
| Actual cell organelle. "Rough" refers to the presence of ribosomes covering its membrane, which translate {{w|messenger RNA}} into polypeptide chains. Normally the endoplasmic reticulum would wrap around the cell nucleus.
|-
| {{w|Ventricle}}
| A chamber of the heart that pumps blood out.
| Yes
| No
| Ventricles are actually part of the body, and they are composed of many cells. Possibly a pun on {{w|vesicle}} (or {{w|vacuole}}), a small membrane-enclosed vessel, such as the transport vesicles that carry polypeptides from the rough endoplasmic reticulum to the Golgi apparatus for processing.
|-
| {{w|Mantle}} 
| The layer of the earth between the crust and the core.
| Yes
| No
| Misplaced geological term with many other meanings.
|-
| {{w|Slime}}
| A moist, soft, and slippery substance, or a {{w|Slime_(toy)|goopy substance sold as a toy}}.
| Yes
| No
| Could refer to the slimy texture and appearance of {{w|cytoplasm}}, but not specific to cells. Slime was a frequent appearance on the Nickelodeon TV kids channel during [[Randall]]'s youth in the 90s.{{acn}}
|-
| {{w|Vitreous humour}}
| The clear gel that fills the space between the lens and the retina in the eyeball.
| Yes
| No
| The vitreous humour is in the eyes' {{w|extracellular matrix}}, not inside cells.
|-
| {{w|Seed}}s
| Plant embryos used for reproduction.
| Yes
| No
| Seeds are multicellular, and sometimes contain small proportions of non-cellular tissue. Cells are found in seeds, not the other way around. Seeds would be labled on a cross-sectional diagram of a fruit, not a cell.
|}

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

Cell Organelles

[A cell is shown with the following structures and areas labeled, counter-clockwise from upper left:]

* Smooth endoplasmic reticulum
* Lithosphere
* O-Ring
* Pith
* Nucleus
* Nucleolus
* Nucleoloulous
* Nucleons
* Drain plug
* Evil endoplasmic reticulum
* Hypoallergenic filling
* Weak spot
* Mitochondria
* Midichlorians
* Chloroplasts if you're lucky
* Human skin
* Carbonation
* Golgi
* Golgi apparatus
* Norton AntiVirus
* Sticky endoplasmic reticulum
* Pleiades
* Natural flavor
* Cellophane
* Rough endoplasmic reticulum

[These labels are inside the cell:]

* Ventricle
* Mantle
* Slime
* Vitreous humour
* Seeds

{{comic discussion}}

[[Category:Biology]]

2939: Complexity Analysis

2024-05-31T11:30:10Z

172.70.162.17:

{{comic
| number = 2939
| date = May 29, 2024
| title = Complexity Analysis
| image = complexity_analysis_2x.png
| imagesize = 430x361px
| noexpand = true
| titletext = PERPETUALLY OPTIMISTIC CASE: Early in the execution, our research group makes a breakthrough in proving P=NP.
}}

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

[[Cueball]] is teaching about an algorithm's complexity. The average-case complexity of the algorithm is written in {{w|Big O notation}} as O(''n'' log ''n''), expressing the asymptotic runtime of the algorithm as the number of inputs to it grows larger and larger.

The comic's joke involves taking the terms "best case" and "worst case" far more broadly and literally than intended. Cueball presents not just the best/worst cases for the data input into the function, but also the global environment as a whole, taking in factors such as the United States Congress which should fall ''far'' outside the algorithm's scope.

In particular, the joke regards the analysis of a closed system, which is common in engineering. Recently, technology has become so prevalent and integrated with humanity, that conventionally closed systems are now behaving openly. Results regarding external feedback on engineering choices have been emerging on the world stage. People have been engineering more and more for the larger situation possibly using more {{w|Game theory}} than Big O, but continuing to use the analytical approaches that assume systems are closed produces ridiculous results because living beings and societies are now in the loop.

An algorithm's "best case" is typically its runtime when its inputs have optimal values and it runs in as little time as possible. The joke here is that not only does it run quicker than this by being terminated early because it's 'unnecessary', but its runtime appears to be an hour shorter still because of an act of Congress changing {{w|daylight saving time}}, giving it an end time (in local time) that is an hour less than it would otherwise have been. Potentially this would result in an end time that is less than its start time, and therefore an apparently ''negative'' 'runtime'. Daylight saving time is a [[:Category: Daylight saving time|recurrent theme]] on xkcd, and it is clear that Randall is not a fan, so Congress making surprise DST changes is another way for Randall to mock the concept.

The "worst case" refers to the movie {{w|Groundhog Day (movie)|Groundhog Day}}, in which the same events occur over and over in a sort of time loop. (This movie has been referenced before in [[1076|1076: Groundhog Day]].) If the hardware running the algorithm is stuck in this kind of loop that resets to a previous time before it gets finished, then the algorithm would never terminate. This gives rise to a philosophical question about the movie as to whether the whole world is reset after every day, or just the town where the movie takes place. If it is just the town, and you could still connect to their hardware from outside, then from that perspective the algorithm would appear to be taking an interminably long time to run. If the whole world resets, since people (aside from the movie's main character) do not experience the resetresthe day, it would only appear to take as long as it did on the final day when it was completed.

This may be an indirect reference to the {{w|halting problem}}, a famous problem in computer science. The halting problem is {{w|undecidable}}, meaning that no general algorithm can tell whether a given algorithm will halt, but the widely accepted traditional proof of this relies on external action on details of a system considered closed.

The title text refers to perhaps an even more famous problem in computer science: {{w|P versus NP problem|P versus NP}}. This asks whether every problem whose solution can be quickly verified (in nondeterministic polynomial time, {{w|NP_(complexity)|NP}}) can also be quickly solved (in polynomial time, {{w|polynomial time|P}}). The P-versus-NP problem is one of the seven {{w|Millennium Prize Problems}}, and as such has a $1 million prize for its solution. Presumably, the problem discussed here is in NP, so if P=NP, its worst-case runtime would be some polynomial O(''nk)''. However, P vs. NP is a Millennium Prize Problem for a reason; most computer scientists expect that P≠NP, so hoping for a breakthrough in proving P=NP is "perpetually optimistic". This may be a reference to {{w|Optimism bias}} and the {{w|Planning fallacy}}, whereby people tend to assume that the most favourable outcome will be the most likely.

==Transcript==
:[Cueball is holding a presentation pointer stick, pointing to a table behind him that towers above him. The table has a heading above it and then two columns and three rows. the first column is slim and the second much broader.]
:Results of algorithm complexity analysis:
:{| class="wikitable"
|Average case
|O(n log n)
|-
|Best case
| The algorithm turns out to be unnecessary and is halted, then Congress enacts surprise daylight saving time and we gain an hour
|-
|Worst case
|Town in which the hardware is located enters a Groundhog Day scenario, the algorithm never terminates
|}

{{comic discussion}}

[[Category:Charts]]
[[Category:Comics featuring Cueball]]
[[Category:Programming]]
[[Category:Daylight saving time]]
[[Category:Fiction]]

Talk:2932: Driving PSA

2024-05-27T10:32:18Z

172.70.162.17:

Did the best I could on the explanation, even if it's a bit clunky. [[User:Trogdor147|Trogdor147]] ([[User_talk:Trogdor147|talk]]) 03:59, 14 May 2024 (UTC)

Pretty lame strategy. Even with someone waving me on, when I get past them I'll look to the right to make sure. [[User:Barmar|Barmar]] ([[User talk:Barmar|talk]]) 04:22, 14 May 2024 (UTC)
: Right? Just pull into the median in front of the left-turners, then re-assess the situation. --[[User:Coconut Galaxy|Coconut Galaxy]] ([[User talk:Coconut Galaxy|talk]]) 12:59, 14 May 2024 (UTC)
::Just an FYI: It's illegal to use turn lanes for merging, & illegal to wait mid-intersection. By law, you must not enter the intersection until the right-of-way is clear. No stopping partway through; that can get you a ticket.
::[[User:ProphetZarquon|ProphetZarquon]] ([[User talk:ProphetZarquon|talk]]) 18:07, 14 May 2024 (UTC)
:: As a pedestrian (amongst my other road-uses), I occasionally have to cross a two-lane carriageway (to the median, then across the opposite two-lane carriageway) near a junction (roundabout, in the UK; and the first lane dedicated to turning in (left, equiv. to a US right-turn) to the side-road) and the initial lane is often either entirely empty or jammed up by those trying to turn into the retail park that sits there. I have to juggle the kindness of drivers who will slow (or stay stopped) to let me across their lane with the possibility of having other (faster-moving) traffic still coming up on the other lane. It's possible to use the twixt-lane white line as a kind of unofficial demi-median (the stopped driver will not forget that they let you go there), but I'd rather not surprise the through-traffic lane by giving them an alarming glimpse of a pedestrian maybe about to step out in front of them, so I might try to indicate to the kind driver (with friendly gestures) that I'm observing someone coming up on their offside (due to slight bend, on entry to the junction, they might not see them in their own offside mirror), perhaps even then stand back and wave them past because ''I'' can see a glut of offside traffic, from my head-height position. Or just avoid those times of the day when there's heavy shopping/commuting traffic causing that sort of problem.
:: (Yes, it ''is'' a proper crossing point. Dropped kerbs for those that need dropped kerbs, though not given pelican/zebra/etc explicit crossing markings and signage. An alternate way 'across' is a walk down to a canal that the onward road crosses by bridge, under that bridge on the tow-path and then back to meet the opposite side of the road.)
:: The junction-exit carriageway is far simpler. You can see when traffic is coming down the through-road ''or'' spinning round the island from the RP exit (or U-turning from the first carriageway!) and either there's a third-of-a-mile queue backed up from the next junction or there's no traffic impeding those going that way to leave me with space to cross.
:: The opposite crossing is a matter of the 'easy' junction-exit carriageway (as just given) plus an unrestricted view of the fast-lane, but then you need to catch the eye of any queued turn-lane vehicles (and look at what round-the-roundabout traffic might be holding the front of that queue up, in the near future) to make sure that when you take advantage of a clear offside then the subsequent nearside cars don't start shuffling up. And recognise the oblivious/inconsiderate/obtuse drivers by their general road positioning and attitude at the wheel. (It's a bit of an art, but stood me in good stead so far.)
:: There is also, elsewher, a ''particularly'' akward right-turn (UK, remember) onto a mainish road, that I sometimes need to drive round. It comes in as single-becoming-double lane, but these days that double is buslane and singular other (from the right, the double-becoming-single is also buslane nearside, except for inward turners who aren't in contention with me but ''are'' potentially view-blocking). Between the two carriageways (which merge, at the single-lane side, as two standard single contra-carriageways beyond an actual light-controlled staggered pedestrian crossing) is the central turning refuge that I potentially need to pause in to turn right, and left-approaching traffic may need to pause in (crossing my path) to turn into the road I'm emerging from. The most problematic are the turning-in cars that ''don't signal'' (or far too late), given that everyone (not a bus) has to keep right anyway on this widened stretch, but some of them are keeping right in order to turn right. And driver-to-driver visual communication (or even seeing if they're glancing in your direction/meeting your questioning gaze) is isn't helped by angled windscreens often drowning out (apparent) driver-on-driver visibility by the reflection of the sky above. So it pays to be cautious, and taking a moment before taking apparent cues (arm waves, light flashes, etc) as you think they might be intended. [[Special:Contributions/172.70.160.248|172.70.160.248]] 15:55, 14 May 2024 (UTC)
:Not reading all that. [[User:Psychoticpotato|Psychoticpotato]] ([[User talk:Psychoticpotato|talk]]) 12:42, 17 May 2024 (UTC)

Maybe they're not trying to kill Randall, but the person in the other lane. [[Special:Contributions/172.71.154.225|172.71.154.225]] 05:00, 14 May 2024 (UTC)
:It doesn't even need to be a fatal crash. Maybe the person in the other lane is an obstetrician who will intercede in a complex childbirth, and this "accident" will be major enough that that no longer happens, and the child dies... [[User:Yorkshire Pudding|Yorkshire Pudding]] ([[User talk:Yorkshire Pudding|talk]]) 06:55, 14 May 2024 (UTC)
::Or possibly the aim is actually to engineer a meet-cute between Randall and the driver of the other car, so that a critical birth can (eventually) take place...[[Special:Contributions/172.70.160.249|172.70.160.249]] 08:24, 14 May 2024 (UTC)
:::Well now I want to see a movie where there is a tragic accident and the dying words of one character to another that survives is to take care of their spouse (critically injured in said accident) and their turbulent and tumultuous relationship as they try to get over both survivors guilt and potentially blaming themselves/each other for the death of that first character. [[Special:Contributions/172.70.38.21|172.70.38.21]] 19:37, 14 May 2024 (UTC)

Just curious, as I'm from Germany - does the USA have no traffic lights? [[Special:Contributions/198.41.242.210|198.41.242.210]] 07:15, 14 May 2024 (UTC)
: They do, and they are placed where you can actually see them --[[User:Coconut Galaxy|Coconut Galaxy]] ([[User talk:Coconut Galaxy|talk]]) 12:59, 14 May 2024 (UTC)
: They do, and they're placed where they can be used for Captcha challenges.[[Special:Contributions/172.70.86.81|172.70.86.81]] 14:28, 14 May 2024 (UTC)
: Only on some intersections. This is likely a case where a relatively small / quiet road intersects with a busy one. Traffic lights tend to be used in the USA where both roads intersecting are beyond a minimum throughput of traffic to justify the cost. [[Special:Contributions/172.64.238.33|172.64.238.33]] 12:06, 15 May 2024 (UTC)
: I think I've seen such setups in Ohio, but here in New Jersey I cannot imagine a scenario like this. Any movement between a divided highway and another road where left turns are allowed in both directions will be controlled by a traffic light with a left arrow. [[Special:Contributions/162.158.63.69|162.158.63.69]] 16:03, 16 May 2024 (UTC)
: Not having a traffic light here in North America is common if the up/down road is very important and busy, and Randall's road is VERY minor. In other words, Randall's road isn't important enough to stop up/down traffic for a traffic light, the city planners feel the occasional car there can just wait for a gap in traffic. On the other hand, I don't think I've ever seen a dedicated left-turn lane like this WITHOUT a traffic light, or at least not one with so many cars waiting without a red light. :) [[User:NiceGuy1|NiceGuy1]] ([[User talk:NiceGuy1|talk]]) 06:40, 19 May 2024 (UTC)

Uncontrolled intersection with a left turn onto a 4-lane road? US road design, combined with US car-centric settlement planning, must have been made by those more clever, trying-harder assassins that Randall mentions in the title text, and it looks like they've got a lot of people on their list. [[Special:Contributions/162.158.229.131|162.158.229.131]] 07:20, 14 May 2024 (UTC)
: If it was a single lane street, and not three-lane road (or stroad), then accepting granting the right of way / waving in would be perfectly safe (assuming that you watch left). --[[User:JakubNarebski|JakubNarebski]] ([[User talk:JakubNarebski|talk]]) 07:23, 14 May 2024 (UTC)
: This is very common in some areas such as Tucson, AZ. --[[Special:Contributions/172.70.214.66|172.70.214.66]] 17:11, 14 May 2024 (UTC)
: Agreed. This is likely a case where a relatively small / quiet road intersects with a busy one. Traffic lights tend to be used in the USA where both roads intersecting are beyond a minimum throughput of traffic to justify the cost. [[Special:Contributions/172.64.238.33|172.64.238.33]] 12:06, 15 May 2024 (UTC)
:: Outside of US, joining a "quiet" road onto one that is so "loud" that it needs two lanes each way *and* a separated median is ... kinda crazy. The fact that you see it as "normal as per the minimum throughput criteria" shows that you're entrenched in a car-centric view. Any <s>sane</s> non-US road designer either doesn't join two roads together in the first place when the loud/quiet ratio is so out-of-whack, or if they *have* to join them (but still don't want traffic lights) then they'll provide something along the lines of a merge/acceleration lane, or a "no left turn" traffic control. [[Special:Contributions/172.68.64.223|172.68.64.223]] 03:38, 16 May 2024 (UTC)
::: UK roads vary considerably in this. If sufficient side-road use, then lights ''may'' be used (with proximity sensors, if side-traffic is light but ''ocasionally'' needs to get a chance to get out by pausing through-traffic), but for very minor roads abutting sufficiently major ones (to have medians and multiple lanes per direction) they may just have no cross-median (to turn across and right), just left-turn (merge onto the nearside) and rely upon the roundabout not far down the road to allow seemless U-turn for those needing that direction. This is the default for 'motorway standard' roads (actual "M-roads", including "A#(M)" ones, and upgraded trunk-roads probably maintained/developed under Highway Authority budget rather than anything left to (sub)regional-responsibility) which now have far fewer roundabouts even (except as flyovers, of various configurations, up slip-roads), in the name of keeping the traffic flowing.
::: Roundabouts do a ''lot'' of this heavy lifting for any road less than motorway standard, and motorway-standard junctions will have fly-over/-under for one or other topological permutation of a cloverleaf junction so that you always merge from the left.
::: If the median-based cross-slip is still used, then it'll often include a widening of median for sufficient length to have deceleration lanes (the comic one looks rather short, as evidenced by there being no more room for any further cross-turning vehicle to join the queue without blocking the 'fast' lane) and a better way to observe all lanes by the onward-turning traffic and accelerate-merge properly onto the carriageway. If it isn't (''especially'' as per illustrated for [https://www.highwaycodeuk.co.uk/road-junctions.html Highway Code item 173]) then you're expected to use best judgement to deal with it.
::: With a few caveats (such as there clearly having been enough instantaneous traffic to fill up the cross-turn deceleration lane, which can't be 'all' explained by the right-of-way-waiving vehicle, and some slightly different shapes of kerbing in the vicinity), you certainly ''could'' see an equivalent-but-mirrored junction as the comic in the UK. You could also see the non-turning vehicle zooming through, but a) it should not be sitting in the offside lane (unless overtaking an unseen, off-comic vehicle on the nearside), and b) it'll probably be going faster (technically could be up to 70MPH for National Speed Limit on dual-carriageway, though it's very likely the junction itself will be re-restricted down to 60MPH or even 50MPH). Not that drivers necesarily keep out of the 'overtaking' lane(s) when they don't need to, or stay below the statutary/posted limits. And if this is an 'urban trunkroad' it may actually even be 40MPH all the way, with frequent 30MPH (or even 20MPH) sideroads feeding/fed-by it.
::: But there'll be exceptions, both more restrictive and less restrictive, than even the various range of places and solutions that I can immediately bring to mind. [[Special:Contributions/172.69.195.180|172.69.195.180]] 23:02, 16 May 2024 (UTC)

Ok, but... time traveller asassins don't get sent for random harmless people? Getting not one, but MULTIPLE asassins hell-bent on offing him suggests he's going to do something incredibly bad for the world that they're trying to prevent?? [[Special:Contributions/162.158.103.68|162.158.103.68]] 08:35, 14 May 2024 (UTC)
: Randall isn't random and it's not entirely clear that he's harmless either.{{unsigned ip|172.70.91.146}}
: It seems reasonable to guess that the future assassins were sent to prevent Randall from writing this very same strip, as it was thwarting many of their other future asassination attempts. [[User:Rumormonger Omega|Rumormonger Omega]] ([[User talk:Rumormonger Omega|talk]]) 14:40, 14 May 2024 (UTC)
: You are assuming the assassins are "good guys", it is just as likely that Randall will do something that most of us would regard as a good thing but it impedes the assassin's, or their master's, evil plan; akin to Skynet sending the Terminators to kill Sarah/Young John Connor to remove the human resistance as an effective counter to the machine uprising. There's also the possibility that Randall is part of a "butterfly effect" scenario where he doesn't directly do anything of note, but something he does will have downstream effects that result in someone else doing something impactful to the assassin's preferred future.[[Special:Contributions/172.70.135.56|172.70.135.56]] 16:01, 14 May 2024 (UTC)
:: Shouldn't our reality be clogged with swarms of time-traveling butterfly assassins? In fact, why do butterflies even exist? Surely they would have been wiped out on some primordial beach eons ago. [[User:These Are Not The Comments You Are Looking For|These Are Not The Comments You Are Looking For]] ([[User talk:These Are Not The Comments You Are Looking For|talk]]) 21:35, 19 May 2024 (UTC)
: It's quite obvious that one of examples in What If 3 will be used to win World War IV. The assassins from losing side are trying to prevent writing the book, hoping that without it the other side never get so crazy idea. -- [[User:Hkmaly|Hkmaly]] ([[User talk:Hkmaly|talk]]) 19:59, 14 May 2024 (UTC)

Oh boy, a comic about my second-greatest pet peeve on the road! Now if only we could have an xkcd guide to using the acceleration lane. [[User:Phil Srobeighn|Phil Srobeighn]] ([[User talk:Phil Srobeighn|talk]]) 09:51, 14 May 2024 (UTC)
:...and turning signals... [[User:Elektrizikekswerk|Elektrizikekswerk]] ([[User talk:Elektrizikekswerk|talk]]) 09:53, 14 May 2024 (UTC)
:
:As we do not have intersections like this, MY personal pet peeve is people stopping to wave kids over the road. Wrong for SO MANY reasons.
:First, the people in the car usually don't think of the OTHER lane (and kids won't, either).
:Second, I am trying to teach my kids to look left and right and only cross the road when there are no cars. If a car approaches, they are to wait until it has passed. Well, but then the car STOPS and the kid gets irritated and doesn't know what to do, because when they are small they just stare at the car and not at the driver, so they never see the waving. And so we are at a stalemate, the car is just standing there, the kid is just standing there, and chances are the kid will decide to cross the road right at the same moment the driver decides he has waited long enough.--[[Special:Contributions/172.70.243.227|172.70.243.227]] 21:29, 14 May 2024 (UTC)

A corollary PSA would be to ignore the gestures of any passengers in the other car. I've seen passengers in the front seat wave people to go ahead, without the agreement of the person actually driving the car.[[Special:Contributions/172.70.178.45|172.70.178.45]] 10:29, 14 May 2024 (UTC)Pat

I don't even drive and I hate these people lmao [[User:Psychoticpotato|Psychoticpotato]] ([[User talk:Psychoticpotato|talk]]) 12:40, 14 May 2024 (UTC)

A discussion of the liability issue in this situation. [https://www.allenandallen.com/can-i-be-successfully-sued-for-waving-a-car-in-front-of-me/#:~:text=Yes%2C%20you%20can.%20There%20are%20circumstances%20in%20which,be%20legally%20liable%20for%20injuries%20and%20financial%20losses.] [[User:Philhower|Philhower]] ([[User talk:Philhower|talk]]) 15:55, 14 May 2024 (UTC)
 TL;DR: Waving makes you liable in the state of Virginia (also in Germany)

I remember when taking my driver's education class (in New Jersey, in 1987), the instructor made a point of teaching us to ignore civilians waving and to never wave other traffic anywhere. If you wave a car in this manner, and it ends up getting into a collision, you can be held liable for the damage. You could also be charged with directing traffic without authorization - something typically only done by law enforcement officers and road construction crews. [[User:Shamino|Shamino]] ([[User talk:Shamino|talk]]) 17:27, 14 May 2024 (UTC)

I must point out, no one has a privilege to go. The "right of way" only refers to the side of the road. Stop using the term wrong. [[User:SDSpivey|SDSpivey]] ([[User talk:SDSpivey|talk]]) 20:46, 14 May 2024 (UTC)
:I'm going to assume this is a joke, but for everyone who might believe it, "right of way" {{w|Right_of_way_(traffic)|does}} [https://www.law.cornell.edu/wex/right_of_way indeed] [https://www.safemotorist.com/articles/right-of-way/ refer] to the privilege ("right") to use a road ("way").
::Like everything else in the comic and the comments here, that depends on jurisdiction. For example, in Australia "right of way" doesn't exist - at least not as a right that can be asserted. Throughout the road rule legislation, references are made to situations where a driver has to give way to other traffic, but there is nothing that explicitly gives a driver "right of way" over any other traffic. As a driver I am obliged to recognise situations where I have to give priority to other drivers, but there is no explicit right to take priority. The legislation also requires all drivers to do what they can to avoid collisions. [[User:Paddles|Paddles]] ([[User talk:Paddles|talk]]) 23:38, 14 May 2024 (UTC)
::: "has to give way to other traffic", that '''''IS''''' "right of way". That's what the phrase means, when the laws say who is supposed to go first. :) For example, I'm not sure how official THIS is, but at least the rule (law?) is that if both of these cars - Randall and the waver - arrived at the EXACT same time, the priority is that the person to the right goes first, until you run out of people (if someone was across from Randall and also arrived at the same time, HE would get to go first, then the waver, then Randall. Since there isn't, that means the waver goes first. Except the line shows that they DIDN'T arrive at the same time). There's also laws about someone going straight has priority over someone turning, and I know in some parts of the world the big road has right of way over the small road (so, since everyone is turning, the waver would go first due to being on a higher priority road). [[User:NiceGuy1|NiceGuy1]] ([[User talk:NiceGuy1|talk]]) 06:56, 19 May 2024 (UTC)
:I concur. It depends on Jurisdiction. Some states definitely use the phrase "right of way" in their traffic laws. If there's an accident, the party with the right of way is presumed not at fault because he had the right to do what he did. In other states (like NJ), there is no such thing - the law only states that drivers in certain situations "must yield". In a state like this, if a traffic case goes to court, the judge will only try to determine the answer to "were you able to prevent the collision?" If you were (and in many cases, the answer is "yes" for both parties), then you may be found liable, even if the other driver violated the law (e.g by failing to yield where he was required to). [[User:Shamino|Shamino]] ([[User talk:Shamino|talk]]) 17:29, 16 May 2024 (UTC)

I want to clarify that the initial post on this thread is not entirely correct, as it is dependent on the jurisdiction, whether it be on a national level, state level, etc. Where I am from in the United States in the state of Utah, for instance, it is codified in Utah traffic code 41-6a-801 Subsections (3)(b)(i) and (3)(d) (see https://le.utah.gov/xcode/Title41/Chapter6A/41-6a-S801.html?v=C41-6a-S801_2015051220150512 if you want) that traffic can turn into the turn lane and wait until the opportunity arises to merge, provided they do not travel further than 500 feet in that lane (in addition to other qualifications that are largely irrelevant to the present subject). While that is inapplicable in the case of this comic, as I do not know of ANY jurisdiction where turning onto a median itself is legal, that does not necessarily mean that it is illegal to turn into a dual direction turn lane and then merge into traffic in all jurisdictions. Apologies if I formatted this comment poorly.[[User:SilentLurker|SilentLurker]] ([[User talk:SilentLurker|talk]]) 23:00, 14 May 2024 (UTC)

If this has happened to Randall several times during the last month alone, then MAYBE he has a habit of stopping his car too far out and/or too far on the left? So that the left-turning time travellers would have difficulties getting past him? Just asking, because this is when people regularly wave ME out. --[[Special:Contributions/162.158.154.77|162.158.154.77]] 08:05, 15 May 2024 (UTC)
:Randall lives in Boston. When I lived in Boston variations on people helpfully waving me to my death was a common occurrence. [[User:Bugstomper|Bugstomper]] ([[User talk:Bugstomper|talk]]) 11:51, 15 May 2024 (UTC)

Applauds rare actually funny use of Citation needed. [[Special:Contributions/172.70.163.121|172.70.163.121]] 10:40, 15 May 2024 (UTC)
:There's no "citation needed" used here, what. [[User:Psychoticpotato|Psychoticpotato]] ([[User talk:Psychoticpotato|talk]]) 12:45, 17 May 2024 (UTC)
::It was added at [https://www.explainxkcd.com/wiki/index.php?title=2932:_Driving_PSA&diff=prev&oldid=342201 this point], and removed at [https://www.explainxkcd.com/wiki/index.php?title=2932:_Driving_PSA&diff=next&oldid=342242 this one] (it had actually bother arrived ''and'' disappeared during a period I wasn't checking, and didn't see the .121's comment until even later, but it was easy enough to track down). [[Special:Contributions/162.158.74.119|162.158.74.119]] 23:24, 17 May 2024 (UTC)
::(PS, for the IP suggesting filter-banning "explainxkcd.com" addresses, elsewhere, the above links wouldn't be directly possible - yes, maybe a more wikimarkup/wikitemplate-mediated replacements for various non-trivial parameterised local site URLs could fill that gap, but it's just so much easier to [] the URL. For the same reason, I wouldn't suggest a wikipedia.org filter-ban, even though we do need to stop people doing that as well.) [[Special:Contributions/162.158.74.119|162.158.74.119]] 23:24, 17 May 2024 (UTC)

Why does the assassin have to be time-travelling? This method would work just as well (or badly) for a regular assassin as long as they can track the car and head them off at busy intersections. As an assassination method, it leaves something to be desired because (1) collisions at 45 mph are not guaranteed to be fatal, especially side or rear collisions where the target is inside a car with modern safety features, and (2) there would be a police investigation and the assassin would have their details taken, at the least. [[User:Comsmomf|Comsmomf]] ([[User talk:Comsmomf|talk]]) 10:46, 15 May 2024 (UTC)

I think the bigger problem with this situation is that the person waiving their right if way is preventing the left-turn lane to drain, which is about to spill over into the lane to its right. --[[User:Coconut Galaxy|Coconut Galaxy]] ([[User talk:Coconut Galaxy|talk]]) 12:18, 26 May 2024 (UTC)

==Churchill's Law==
Just to reframe "''Car that they are waving you into the path of''" into an awkaward phrase NOT ending in a preposition: "''Car into the path of which they are waving you''". (The Churchill thing is a myth, though <https://quoteinvestigator.com/2012/07/04/churchill-preposition/> .) {{unsigned ip|162.158.134.225}}
: Yuck - that construction needs waving into the path of an oncoming car. Or possibly it already has been.[[Special:Contributions/172.69.43.183|172.69.43.183]] 14:31, 14 May 2024 (UTC)

==PSA==

I thought PSA was Peugeot Société Anonyme, and was wondering why this was specific to French Cars.
Or possibly Prostate specific antibody.
Maybe Platform Security Acrhitecture

https://en.wikipedia.org/wiki/PSA

[[Special:Contributions/172.69.43.223|172.69.43.223]] 07:51, 15 May 2024 (UTC)
:in America, PSA usually stands for Public Service Announcement-and Randall is from and lives in America.
[[User:42.book.addict|42.book.addict]] ([[User talk:42.book.addict|talk]]) 17:12, 15 May 2024 (UTC)
:I just cackled so loudly that I scared my cat off my lap. Prostate-specific antibody? Help [[User:Psychoticpotato|Psychoticpotato]] ([[User talk:Psychoticpotato|talk]]) 12:48, 17 May 2024 (UTC)

== This discussion ^^ ==

For a bicyclist like me, it is quite weird to have such a lengthy discussion about laws in using an intersection by car.
Here in Germany, we would rather talk about psychological aspects (like being put under pressure by having been granted right-of-way).

I, as german bicyclist, often observe how “polite” drivers get angry because I don’t use the right-of-way they granted me.
They even sometimes open their window and swear at me.
(And if they are bicyclists too, they don’t even need to open the window.)
It’s like some people are trying to kill me, just like Randall has exemplified here.
(Oh, by the way, only males have sweared at me so far.) --[[Special:Contributions/172.68.195.212|172.68.195.212]] 08:05, 17 May 2024 (UTC)
:Can't speak of Germany (only been a pedestrian or car passenger, there), but I've cycled in France, Netherlands and lands inbetween. (Plus Denmark!). In Belgium ''in particular'', motorists will patiently wait for cyclists to go first at junctions. Awkward when we've just been stopped to read the map, are still confering and aren't really in a hurry to go in the chosen direction yet.
:But it's a breath of fresh air compared to here in the UK where the right-of-way of cyclists is often ignored, if not worse. Noting here that I'm talking from the perspective of cyclists who are obeying the rules of the road, and put a lot of the blame against "people on bikes" who do not. As well as excessive, yet simultaneously inadequate, cycle-paths and lanes which change everyone's expectations and make motorists and "people on bikes" convinced that the right (indeed, often obligation!) for bicycles to use the road doesn't exist.
:(The more wheels being ridden on the pavement/footway, the worse. It's actually illegal, unless designated and marked as a shared/split cycle+pedestrian path, but often the limited stretch of 'token cycle infrastructure' is badly implemented/observed. I've seen bikes being ridden on the pavement at the side of a road with a ''cycle lane'' clearly marked on the roadway (and not blocked by parked cars, or anything). I'd actually rather no 'special infrastructure' and instead a universal (non-Motorway/etc, of course) acceptance that bicycles/horses/etc can and may be on the roads.)
:With that, what you're getting in Germany (I've extended experience of wandering all across Berlin, albeit a couple of decades ago) is probably rooted in more sympathetic laws/practices added to the universal possibility of any road-user to be irritated by any other (with or without justification – there are bike-riders that totally get on my nerves, at least by proxy, when I see them just dodging on and off the road, on the wrong side, passing through red lights, across in-use pedestrian crossings, etc... if they aren't in contention with me, directly, they're souring the pitch for when I'm the one trying to be a responsible rider).
:I also get annoyed by pedestrian and driver behaviour (or apparent obliviousness) when I'm pedestrianing/cycling/driving through the same space. Not saying that I'm perfect, or might not be seen as imperfect. If I take an opportunity to walk across/near a crossing without pressing the button, it ''probably'' is because I judge that I can dodge across between streams of traffic safely without adding the (longer than I need, and delayed before it starts) stop light to their travel woes (if I'm the only person who would be waiting). Very occasionally, a car on the opposite lane, who I had comfortably judged to have passed (with empty road behind them) before I get anywhere near them will spot me and stop (I probably then am forced to bend my path to pass behind them), misunderstanding the whole consideration I was attempting to grant them (though it often does mean they weren't hazard-perceiving enough to start with, to have only seen me as they were basically almost past me – if I were as oblivious, I'd have been walking into their side!). But the world isn't perfectly in tune.
:Of course, people sealed in metal-and-glass boxes aren't as easy to transmit intentions to/from, leaving the "after you"/"no, after you"/”the thing is, I'm just pausing to decide which way to go" (howsoever abbreviated) dialogue reduced to a bit of arm-waving/hand-unfurling that might get supplemented by various mechanical audible signals or whole-vehicle micro-movements. But converging cyclists (or pedestrians) can also have that awkward period when (perhaps) both parties are fully aware of the imminent brief joining together at at the same rough space-time coordinates, but sufficiently comprehensive communication for negotiation/coordination purposes is not yet achievable. You have to take each situation as it comes, and the two parties may have entirely different mindsets and drives in control of their current attitude to cooperation in this endeavour. ("I'm late for lunch!", "Where ''shall'' I have lunch?", "That lunch really isn't agreeing with me.", "...after lunch, I'm going to have to talk to...", "I can't ''believe'' this lunchtime traffic!"...) [[Special:Contributions/172.70.90.191|172.70.90.191]] 11:10, 17 May 2024 (UTC)

:It doesn't matter if you are talking about car or bike - they have to abide to the same rules. Especially if there are no dedicated traffic lights for bikes. [[User:Elektrizikekswerk|Elektrizikekswerk]] ([[User talk:Elektrizikekswerk|talk]]) 13:58, 17 May 2024 (UTC)
::Yes and no. For example, in the UK a bicyle-rider cannot be charged with exceeding the speed limit (although "wanton and furious riding" and various other carlessness/inconsiderateness charges could be applied), and there is perhaps going to be [https://www.bbc.co.uk/news/uk-politics-69016715 the adding of] "Death by dangerous cycling" to the statutes (IMO, and IME, this is not a current problem... causing death by ''any'' means is already capable of being prosecuted, or deemed [https://www.bbc.co.uk/news/uk-england-cambridgeshire-68975335 not prosecutable]), it's not like people on bikes are getting away with anything (if anything, car drivers aren't being properly punished enough for their dangerous driving - speaking as a car-driver myself, even).
::But, definitely road signals/etc that don't have explicit differentiations to them should be obeyed equally. Seeing several cars go out through a red-light, today (I was walking and saw it, a kid-on-a-bike(-on-the-pavement) nearly got hit by one where he ''may'' have been Ok if he'd have been on the road and obeying ''his'' set of traffic lights), it's not really a bike problem, let alone a cyclist one. [[Special:Contributions/162.158.33.164|162.158.33.164]] 23:44, 17 May 2024 (UTC)
:::The comic (and "this discussion") is about right of way. Right-of-way-rules (or equivalent) are valid for all vehicles so your nitpicking is irrelevant. [[User:Elektrizikekswerk|Elektrizikekswerk]] ([[User talk:Elektrizikekswerk|talk]]) 10:56, 24 May 2024 (UTC)
:::: The same rules may be differential in observence between road-users. By even mentioning "dedicated traffic lights for bikes" (which I've never seen, except in the context of a Toucan Crossing) you are in fact implying that "there are different instructions for different traffic", and suggesting that each type of traffic is therefore abiding to those differences. Personally, I think that makes things worse than "everything on the road has to just obey the rules and deal with everything else on the road that is obeying the rules", and encourages entitlement by those who probably don't even know the rules in the first place (or, in the case of drivers, forgot them soon after passing their driving test - today I walked past some workmen repainting a "40" 'reminder' on a recently resurfaced road that's a bit of a rural-ratrun, and we had a bit of a joke that nobody would even pay any attention to their good work). So I don't really know if we can even agree which bit of your point I'd be nitpicking with. Meh, it's probably opinion anyway. [[Special:Contributions/162.158.74.68|162.158.74.68]] 22:31, 24 May 2024 (UTC)
:::::The comic is about right-of-way, you were nitpicking by mentioning speed limits. People who don't know the rules don't belong on the road. As for dedicated traffic lights for bikes: https://en.wikipedia.org/wiki/Traffic_light#Cycle_signals and (in German) https://www.bussgeldkatalog.de/fahrradampel/ [[User:Elektrizikekswerk|Elektrizikekswerk]] ([[User talk:Elektrizikekswerk|talk]]) 07:20, 27 May 2024 (UTC)
:::::: My words were "which I've never seen". In the UK, except in the context of a Toucan Crossing. We have those advanced stop lines, aplenty, with the exact same round (or arrowed) traffic lights directing every vehicle (however many wheels, however many engines) sitting in the appropriate slot on the road. But the {{w|Toucan crossing}} is the only 'bike-only green' seen (except that it's not bike-only, it's bike-and-pedestrian, ...and-horse, also, if combined with a Pegasus crossing), and that's not on the road but across a road, and it quite on roads where bikes are likely also using the road (and obeying their direction's all-traffic signals, if ridden correctly).
:::::: And it seems we're never going to mesh with what it means about "having to obey the same rules" where some rules are ''explicitly'' about motor vehicles and therefore exempt non-motor ones. But, IMO, should be practically enforced better against electrical-motor-assisted vehicles that are barely - or not even - bicycles any more... i.e. illegally supercharged "no pedalling" variations on regular electric bikes, the electric scooters that are on the dodgy side of legality for much of the country (road ''or'' footway) and unlicenced+unregistered full on electric-motorbikes that don't even pretend to have pedals; all of these are giving legitimate cyclists and electrically-assisted cyclists even more of a bad name. [[Special:Contributions/172.70.162.17|172.70.162.17]]
::::::

The thing is, with or without the semi, I feel like Randall wouldn't be able to see well enough to properly ascertain safety, and thus (with or without the truck, with or without waving) he'd have to approach the median anyway, cross the near side anyway, spot the danger guy all on his own. Also, seems weird to have a dedicated left-turn lane WITHOUT a traffic light, at the very least seems weird to have a LINE when there's no light stopping them. If the truck was in front, maybe, since he needs a FAR bigger gap in oncoming traffic... [[User:NiceGuy1|NiceGuy1]] ([[User talk:NiceGuy1|talk]]) 06:40, 19 May 2024 (UTC)

1575: Footprints

2024-05-26T18:50:01Z

172.70.162.17: /* Explanation */

{{comic
| number = 1575
| date = September 9, 2015
| title = Footprints
| image = footprints.png
| titletext = "There's one set of foot-p's cause I was totes carrying you, bro!" said Jesus seconds before I punched him.
}}

==Explanation==
The comic is a satirical graphical representation of the inspirational Christian poem "{{w|Footprints (poem)|Footprints}}," which has been recounted in many versions and is of disputed authorship.

The basic idea of the poem is that the narrator looks back at scenes of their life and sees two sets of footprints, their own and those of Jesus. During the most difficult times of their life, the narrator sees only one set of footprints and assumes that Jesus had left them during those times. In the climax of the poem, Jesus responds to the narrator that they saw only one set of footprints during the most difficult times of their life because Jesus was carrying them during those times.

The poem is seen by many as overly sentimental and is thus ripe for parody of this kind. The graph mockingly illustrates various times when Jesus or the narrator left the scene, or otherwise gives various reasons why the number of sets of footprints may have been other than two.

There are several odd events listed in the chart:

*The narrator of the original poem does not need to carry Jesus.{{Citation needed}}
*"That guy" refers to a mysterious person joining the narrator and Jesus on their walk. It is unclear if this person is paranormal or just some random guy tagging along.
*"Ducklings {{w|Imprinting (psychology)|imprinted}} on Jesus and followed Him around" is a reference to {{w|Konrad Lorenz}}'s experiments. Three ducklings followed Jesus and the narrator.
*"Jesus disappeared for an evening each time a new ''{{w|The Twilight Saga (film series)|Twilight}}'' movie came out" could mean that Jesus went to see the movie and left the narrator alone. It could also mean that his support of people through their most difficult trials meant he had to carry a lot of emotionally scarred people.
*"Got lost and followed our own footprints" may be a reference to "{{w|Winnie-the-Pooh}}" (1926), in which the titular bear and his friend Piglet try and hunt a "Woozle" by its footprints, actually following their own round and round a spinney, which also seems slightly childish for Jesus as traditionally portrayed. An alternate explanation is that they came to a dead end, and had to double back.
*"Rode around with Jesus in captured {{w|Walker (Star_Wars)#All_Terrain_Scout_Transport_.28AT-ST.29|AT-ST}}" is a reference to a two-legged combat "walker" from Star Wars. The implication is that Jesus would have participated in forcibly taking a war machine, which appears somewhat out of character.{{Citation needed}}

In the end, Jesus drowns in a patch of quicksand, and then the narrator simply goes home, again subverting the poem's earnestness. Quicksand can occur on beaches and can be dangerous to humans. If Jesus can leave footsteps in the sand, clearly he is applying pressure and could sink deeper. "Going home" could be a reference to dying, implying that the narrator died without Christ, the journey at an end. However the narrator probably just went home.

The title text continues the parody by imagining that Jesus delivers the poem's climactic lines in stereotypical {{w|Bro_(subculture)|"bro"}} speak, a dialect perceived by many to be obnoxious. "There's one set of foot-p's cause I was totes carrying you, bro!" can be translated into normal English as "There's one set of footprints because I was definitely carrying you, friend!".

The narrator punching Jesus is another subversion of the poem's perceived excessive sentimentality. One interpretation is that the narrator, like many people, dislikes usage of this lingo and punched Jesus as a result of this hatred. Another interpretation is that Jesus' obnoxious way of explaining himself indicated dishonesty, meaning he did not in fact carry the narrator during the most difficult parts of his life. The narrator sensed this and punched Jesus in retaliation.

An alternate explanation of some of the oddities of the strip is that "Jesus" is not Jesus Christ, but some guy merely ''named'' Jesus, as is common in some Latin American countries.

Using the ''Twilight'' movies as reference points, it can be determined that the span of the graph is from approximately early 2004 to late 2018, with Jesus' death in the second half of 2017.

The poem has appeared in xkcd before, at [[1110: Click and Drag|1110]] with coordinates 0.7601, -58.803.

==Transcript==
:[A graph is shown with a single red line that runs through from left to right, showing different values at different times. Until the very end, the line always returns to the value 2, signifying two sets of footprints in the sand. The X-axis has a label followed by an arrow pointing right. The Y-axis has a label at the top, right of the axis, and numbers, one for each of the ticks from which five thin lines going horizontally across the entire graph. Every time the graph moves away from the value 2 there is an arrow pointing to the event and a label. The first two events has the same label. The only label below the line has five small arrows pointing to five small dips in the curve. All other labels only has one arrow pointing to one event.]
:X-axis: Time
:Y-axis: Sets of footprints
::5
::4
::3
::2
::1

:[The line starts at the value 2, then dips twice to the value 1. The two troughs are labeled:]
:Jesus carried me

:[The line dips once again to the value 1. The trough is labeled:]
:I carried Jesus

:[The line rises to 3 briefly, and is labeled:]
:Who was that guy?

:[The line rises to 5 sharply, and then falls in a sharp staircase pattern, labeled:]
:Ducklings imprinted on Jesus and followed him around

:[The line rises to 4, labeled:]
:Got lost and followed our own footprints

:[The line dips for very short periods five times to the value 1. The first dip is between "I carried Jesus" and "Who was that guy?", the second between "Who was that guy?" and "Duckings imprinted on Jesus..." and the final three are all between the "Ducklings imprinted on Jesus..." and "Got lost and followed our own footprints". These five troughs share one label with five arrows from the same text:]
:Jesus disappeared for an evening each time a new ''Twilight'' movie came out

:[The line dips to 1, labeled:]
:Rode around with Jesus in captured AT-ST

:[The line dips and stays level at 1, labeled:]
:Hit quicksand patch. Jesus didn't make it :(

:[The line dips to zero at the end, and is labeled:]
:Went home

{{comic discussion}}
[[Category:Comics with color]]
[[Category:Line graphs]]
[[Category:Religion]]
[[Category:Language]]
[[Category:Animals]]
[[Category:Twilight]]

1890: What to Bring

2024-05-23T23:41:08Z

172.70.162.17: Undo revision 342909 by Apollo11 (talk) Maybe a good intent, but seemingly ignoring grammar and punctuation.

{{comic
| number = 1890
| date = September 15, 2017
| title = What to Bring
| image = what_to_bring_NEW.png
| titletext = I always figured you should never bring a gun to a gun fight because then you'll be part of a gun fight.
}}

==Explanation==
This comic derives its humor from combining two common but unrelated pieces of advice: "never bring a knife to a gun fight", and "never put water on an oil fire". The corollary to these phrases is that a knife is only useful for a knife fight, and water is only useful for a wood fire (or similar solid and porous fuel). [[Randall]] creates a {{w|confusion matrix}} applying each of the solutions (knives, guns, lids, and water) to each of the situations (knife fight, gun fight, wood fire, oil fire) to predict the likely outcomes.

The squares in the table are highlighted in green to answer "Yes" to the question, where the specified object is appropriate or advantageous for the situation, or red to answer "No", usually because the object would not be helpful in resolving the situation. The grid concludes that, not only are both pieces of advice correct (bringing knives to gun fights, and using water on oil fires would both end in likely disaster), but only the prescribed solutions are appropriate for each situation (e.g. any solution other than a lid would be ineffective for an oil fire, and potentially very dangerous). The sole exception to this trend is bringing a gun to a knife fight, which would give you a major tactical advantage over your opponent.

The ultimate point of this comic may be in the title text. There is a phrase in American English, "to bring a knife to a gun fight," which means "to be so naive as to be unprepared." While Randall may be commenting specifically on managing {{w|conflict escalation}} by being adequately prepared for the situation, it is also possible that he is subtly expressing his opinion about the virtues of restraint.

{| class="wikitable" | style="background:#E6C3C3;"
! Should you bring ... to ...
! scope="col"| a knife fight
! scope="col"| a gun fight
! scope="col"| a wood fire
! scope="col"| an oil fire
|-
! scope="row"| a knife
| style="background:#C5E6C3;"| If you bring a knife to a knife fight, you will be evenly matched with your opponent (all else equal).
| If you bring a knife to a gun fight, you will be at a perilous disadvantage. (Although, at close range, a knife is considered more lethal than a firearm in certain situations, e.g. a holstered pistol.)
| Attempting to stab a wood fire with a knife will only lead to you being burned.
| Attempting to stab an oil fire will only cause you to get burned and leave metallic scrapes in the pan.
|-
! scope="row"| a gun
| style="background:#C5E6C3;"| Bringing a gun to a knife fight will usually leave your opponent at a perilous disadvantage due to the gun's far greater range. (Though if the fight is in close quarters, you will likely be at a disadvantage. You may also be accused of "not playing fair", but only if you leave survivors.)
| style="background:#C5E6C3;"| <ref>While the chart states that you should bring a gun to a gun fight, the title text makes the observation that bringing a gun to a gunfight might just raise your status from 'inconsequential bystander' to 'combatant'. So perhaps you shouldn't bring a gun to a gun fight if not bringing one is a way to avoid being considered part of the fight. It probably all depends on why there is a gun fight to begin with, and why you are choosing to go to it, with or without a gun (or knife or water or lid). Or Randall may simply (and wisely) mean that you shouldn't go to a gunfight at all, which is a genuinely valid point, and not a joke. If you're not there, you can't get shot.</ref> Bringing a gun to a gun fight will leave you {{w|Mexican standoff|evenly matched with your opponent}}.
| colspan="2"| Shooting at a wood or an oil fire will not extinguish either one. Depending on the exact caliber of the bullet, you may even end up scattering the wood or oil fueling the flames, leaving you with a worse situation than before. Also, most bullets contain lead, so the heat of the fire may cause the bullet to give off toxic fumes.
|-
! scope="row"| water
| colspan="2"| Splashing either a knife-wielder or a gunman with water may blind your opponent briefly, but if you're still in a fight (i.e. you cannot use the opportunity to flee), it won't win you the fight. (However, water can disable some antique guns that use black powder, since the powder will not ignite when wet.)
| style="background:#C5E6C3;"| Wood fires are best extinguished with a well-aimed splash of water.
| Pouring water on an oil fire is notorious for creating huge fireballs and scattering the oil, making the situation even worse ({{w|boilover}}).
|-
! scope="row"| a lid
| colspan="2"| Attempting to put a lid on the head or weapon of a knife-wielder or gunman will probably not help matters,{{Citation needed}} as it may only serve to agitate them. While it might momentarily confuse your opponent, it probably won't give you much of a running start. (However, a metal lid with the right sort of handle could serve as a makeshift {{w|buckler|shield}}.)
| Trying to put out a wood fire with a lid would usually require a lid far too large for you to carry.
| style="background:#C5E6C3;"| An {{w|Class B fire|oil fire}} is best extinguished by cutting it off from oxygen; stove top oil fires generally occur in cooking pans, which often come with lids suited to making an airtight seal. A fire-resistant blanket or towel also works well for this purpose.
|}

==Transcript==
:[Text in the top-left corner of the comic:]

:"Should you bring _____ to ______?"

:[The comic is laid out like a grid, with implements down the left-hand side (A knife / A gun / Water / A lid) and the type of "fight" across the top (A knife fight / A gun fight / A wood fire / An oil fire). The grid illustrates the "match-ups", with a green square denoting a "correct" match-up and a red square denoting a Very Bad Idea.]

:[From the top left corner, going from left to right, top to bottom, with each first item being on its own line in the grid, the squares are as follows:]

:[Green square, two combatants face off against each other with knives, equally matched.]
:*'''A knife''' to '''A knife fight'''

:[Red square, a person with a knife faces off against someone with a gun, and is clearly outmatched.]
:*'''A knife''' to '''A gun fight'''

:[Red square, a person holds a knife in a wood fire while saying "OW OW OW".]
:*'''A knife''' to '''A wood fire'''

:[Red square, the person with the knife scrapes at the oil inside the pan that's on fire while saying "OW OW OW". The scraping accompanied by the text "SCRAPE SCRAPE".]
:*'''A knife''' to '''An oil fire'''

:[Green square, the person with the gun points it at the opponent with the knife, who exclaims, "Dude!"]
:*'''A gun''' to '''A knife fight'''

:[Green square, two combatants point guns at one another, equally matched.]
:*'''A gun''' to '''A gun fight'''

:[Red square, the person with the gun shoots pointlessly three times at the wood fire, which carries on blazing. The shooting is accompanied by the text "BLAM BLAM BLAM".]
:*'''A gun''' to '''A wood fire'''

:[Red square, the person with the gun shoots at the flaming pan, which does nothing to put it out. The shooting is accompanied by the text "BLAM".]
:*'''A gun''' to '''An oil fire'''

:[Red square, the person with the water throws it uselessly in the face of the person holding the knife.]
:*'''Water''' to '''A knife fight'''

:[Red square, the person with the water throws it uselessly in the face of the person holding the gun.]
:*'''Water''' to '''A gun fight'''

:[Green square, the person throws the water on the fire and successfully extinguishes it, which makes a "SPLOOSH" sound.]
:*'''Water''' to '''A wood fire'''

:[Red square, the person is shown reeling back from the oil fire, the water glass going flying, as the oil fire explodes with a "FOOM".]
:*'''Water''' to '''An oil fire'''

:[Red square, the person with the lid comically places it on the head of the person with the knife, who stands there in confusion.]
:*'''A lid''' to '''A knife fight'''

:Red square, the person with the lid ineffectually places it on top of the gun the other person is pointing at them.
:*'''A lid''' to '''A gun fight'''

:Red square, the person with the lid holds it near the wood fire, which does nothing to put out the fire.
:*'''A lid''' to '''A wood fire'''

:[Green square, the person places the lid on top of the oil fire, which suffocates and extinguishes it.]
:*'''A lid''' to '''An oil fire'''

==Trivia==

*The original image for this comic was missing one of Cueball's arms in the first panel. The original image is [https://www.explainxkcd.com/wiki/index.php/File:what_to_bring.png here].
{{comic discussion}}

[[Category:Comics with color]]
[[Category:Comics featuring Cueball]]
[[Category:Multiple Cueballs]]
[[Category:Charts]]
[[Category:Comics edited after their publication]]

== Notes ==

2924: Pendulum Types

2024-05-22T13:53:46Z

172.70.162.17: /* Explanation */

{{comic
| number = 2924
| date = April 24, 2024
| title = Pendulum Types
| image = pendulum_types_2x.png
| imagesize = 589x302px
| noexpand = true
| titletext = The creepy fingers that grow from a vibrating cornstarch-water mix can be modeled as a chain of inverted vertical pendulums (DOI:10.1039/c4sm00265b) and are believed to be the fingers of Maxwell's Demon trying to push through into our universe.
}}

==Explanation==
This comic shows and describes several {{w|pendulums}}. The first three are actual physics models, while the last one is made up for absurdity. This is a recurring format of xkcd comics, as shown in [[2289: Scenario 4]].

[[File:Oscillating pendulum.gif|200px|right|thumb|The motion and dynamics of simple pendulum]] The simple pendulum consists of a joint, rod, and weight, and when released (inside a gravity field or other accelerating force), it swings in a regular fashion. The "period" of a pendulum is the amount of time it takes to complete one cycle, swinging back and forth. In a simple pendulum, the period is consistent, predictable, and depends primarily on the length of the pendulum and the acceleration (being largely independent of both mass and length of arc). This predictability makes pendulums useful in applications such as timekeeping, where the earliest accurate clocks (such as a {{w|grandfather clock}}) made use of pendulums as regulators.
 
[[File:Double-compound-pendulum.gif|200px|left|thumb|The typical motion of a double compound pendulum]] The {{w|double pendulum}} consists of 2 joints, 2 rods, and a weight, and when released, it swings in a {{w|chaos theory|chaotic fashion}}. Interestingly, this follows by the mathematical definition of chaotic, being that small changes in initial conditions result in vast differences in end results. This pendulum is thus nearly unpredictable, and due to this chaotic nature, real life applications are very limited.
 
The {{w|inverted pendulum}} consists of a simple pendulum that is placed upside down, with some powered apparatus underneath vibrating it vertically to keep it upwards. If left unpowered it will fall, hence the "unstable" part. The comic appears to depict {{w|Kapitza's pendulum}}. See a [https://www.youtube.com/watch?v=5oGYCxkgnHQ video demonstration by Harvard Natural Sciences] or an interactive simulation [https://www.myphysicslab.com/pendulum/inverted-pendulum-en.html here].

The nightmare pendulum appears to be an inverted double pendulum, with an additional uninverted pendulum swinging within its much more substantial weight (which is also adorned with archaic/mystical symbols). The comic claims that this pendulum summons {{w|Maxwell's demon}}, jokingly implying that Maxwell’s demon is an actual entity. In fact, Maxwell's demon is a thought experiment in which a being - the demon - is posted at a tiny door between two gas vessels. It lets only slow-moving (cold) gas molecules move through the door in one direction, and only fast-moving (hot) ones in the other direction. One vessel gradually becomes hot and the other cold, violating the {{w|second law of thermodynamics}}. An actual machine doing that would require at least enough energy - in the form of information - so that no violation took place, but the thought experiment has stimulated much discussion since it was first proposed by {{w|James Clerk Maxwell}} in 1867.

The title text continues this joke explicitly, by referencing a real paper titled [https://pubs.rsc.org/en/content/articlelanding/2014/sm/c4sm00265b Vibro-levitation and inverted pendulum: parametric resonance in vibrating droplets and soft materials] and implying that the paper ties the [https://www.youtube.com/watch?v=3zoTKXXNQIU "creepy fingers"] produced in this way to Maxwell's demon. The paper only actually suggests that the phenomenon is related to inverted pendulum dynamics. This gives a humorous example for the abuse of citations. Technically, the cited reference only supports the claim immediately before it, that the behavior of a cornstarch-water mix (also known as {{w|Non-Newtonian fluid#Oobleck|oobleck}}) can be modeled as inverted pendulums. But by proximity the reference also seems to support the part about Maxwell's demon. The illusion is helped by the description of the cornstarch as creepy, which is added in the beginning without any visible separation from the actual content of the citation.

==Transcript==
:[Four types of pendulums are shown in a single panel. Each has a bullet list below the depiction.]

:[Label:]
:Simple pendulum
:[A basic pendulum consisting of a joint, rod, and weight swinging in a regular arc]
:* Periodic
:* Stable
:* Useful for timekeeping

:[Label:]
:Double pendulum
:[A pendulum consisting of 2 joints, 2 rods, and a weight swinging in a more loopy arc]
:* Aperiodic
:* Chaotic
:* Moderately cursed

:[Label:]
:Inverted pendulum
:[An upside-down basic pendulum with some apparatus underneath vibrating up and down]
:* Finely balanced
:* Unstable
:* Becomes stable when vibrated

:[Label:]
:Nightmare pendulum
:[An inverted double pendulum, with an additional uninverted pendulum swinging within a large weight adorned with archaic/mystical symbols]
:* Forbidden
:* Unphysical
:* Summons Maxwell's Demon

{{comic discussion}}

[[Category:Comics with cursed items]] 
[[Category:Physics]]

Talk:2935: Ocean Loop

2024-05-22T10:41:40Z

172.70.162.17:

The 'standard' and '2x' sized images had unexpected sizes, so a Trivia section has been automatically generated, and an imagesize parameter has been added (at half size) to render the image consistently with other comics on this website. --[[User:TheusafBOT|TheusafBOT]] ([[User talk:TheusafBOT|talk]]) 20:47, 20 May 2024 (UTC)
:We're still calling 4760 x 4295 "massive" in a time when many tvs and monitors are 4k? I mean I guess it's technically massive compared to the website's default, a downright ''embarrassing'' 635 x 573 -[[Special:Contributions/172.71.255.7|172.71.255.7]] 19:37, 21 May 2024 (UTC)
::[[1475: Technically]] 20 million pixels are technically massless, not massive. [[Special:Contributions/172.71.98.46|172.71.98.46]] 19:49, 21 May 2024 (UTC)
Is there anyway to get notifications when a new comic comes out? I'm always late to these 21:27, 20 May 2024 (UTC)Jush
:I believe that there may be a Twitter (or X, or Xwitter, whatever we're calling it out) announcement direct from Randall's account, but I don't use that myself. And, like me, you were here ''right as it came out'', more or less, so so don't worry too much. You ''could'' write your own BOT-like poller (various ways, but do at least considerately throttle it back to checking perbaps no more frequently than every 15 minutes, 'cos too many people doing that would be 'problematical'), if you can't find a push-notifying service that does most of the hard work for you (and a whole host of other subscribers). [[Special:Contributions/172.70.85.241|172.70.85.241]] 22:23, 20 May 2024 (UTC)
:You can use the RSS feed: https://xkcd.com/rss.xml [[User:Val|Val]] ([[User talk:Val|talk]]) 04:07, 21 May 2024 (UTC)

Happy Victoria day to anyone else in Canada! [[Special:Contributions/162.158.146.235|162.158.146.235]] 21:39, 20 May 2024 (UTC)

Due to not being told about any Edit Conflict, I managed to co-edit the initial explanatuon with A.N.Other (sorry, haven't checked who, probably the first major editor in the page-history). I've put the most useful bit (IMO) of their article into mine, but some of it seemed wrong. Or at least not right.
*"because of the size and speed of a cruise ship, the ship likely wouldn't make it around the loop without falling off" - well, given the mass of water nicely holding itself to the loop, a ship floating around in it at the same speed would be holding itself to the loop quite nicely (moreso, perhaps, with its CoG taking a tighter loop than the fluid-loop).
**Of course, it could be slower, but that would mean fighting the current. Whatever huge velocity the water is going, you'd have to be capable of going full-reverse at ''significant'' speed to overcome that,
***Well, you could be ''just'' less than the ''just'' more than fast-enough water, but it's probably significantly faster than loop-speed, or a lot of edge-surface water would shed out of the topmost loop-trough due to fluidic friction against the trough itself.
***And there's the acceleration needed to match the fluid flow-rate, but that causes problems before 'falling off' is an issue. Imagine suddenly finding yourself going hundreds (thousands?) of knots sternwards in still water. Probably what it'd feel like, before even getting to the tilt (by which time, any ship that had survived is probably now close to water-speed).
*"Second even if they managed to make it through without falling, many of the passangers would abtain extreme injuries and/or likely fall off the ship all together (unlike {{w|rollercoasters}} the passengers aren't strapped down)" - If you experience negative Gs in a rollercoaster, it's not a true loop (just an awkward inversion). You should normally always stay at positive Gs, albeit at somewhere within 0<Gs<1 (which ''feels'' like negative, but is just short of weightlessness). Being strapped in is still important, but mostly for forces lateral to "local down" for where you are on the ride.
**...or, of course, if the ride malfunctions and leaves you stationary and inverted. Which happens, but that's not at all intended in most situations. There'd be no way an 'otherwise normal' flume-loop would do that, though refering back to the need of your ship to experience initial acceleration before it even hits the loop (and final deceleration once it exits it).
*"Third, because of the way the loop's designed, several hundreds (if not thousands) of tons of water is being launched onto the top of the cruise ship at a high speed. Needless to say, this would not only likely capsize the ship, but would also flatten any passenger on the deck." - The sudden undersea current is going to be a problem, but it's not going to be directed over the ship (save ''completely'' over the ship, in the loop far above).
**What you'll have is the turbulent local sea conditions. There'd be a 'standing wave-trough' in front of the point the jet of water is shown to emerge, itself probably a catastrophic problem for a ship, even an ocean-going one built in expectation of occasionally meeting {{w|rogue waves}}) and all the problems involved in traversing such rough seas. If your vessel can survive that (without spinning sideways and hitting the flume-trough, or breaking its back due to the extremely uneven and changing buoyancy along its length) then it's probably going to survive the much smaller amount of water that splashes 'over' its upper superstructure, compared to whatever relative mastrom of flow there will be passing under/against its (nominally) below-waterline hull.
I don't know how much 'reality' Randall has invested in this premise (I presume little, given the lack of pressure-trough in the 'still' water just short of the jet-emergence, nor any distortion in the sea surface wherever the jet originally sucked its water in from), but a lot of the issues of the looping-the-loop "What if" train will be the prime factors, plus maintaining general control (in river navigation, going downstream, between bridge piers, you really have to power your vessel forward, faster than the river itself, or risk losing yaw discipline on your craft). All the rest is icing on the cake of improbability. [[Special:Contributions/172.70.85.241|172.70.85.241]] 22:23, 20 May 2024 (UTC)
:It's a comic drawing after all, it's meant to illustrate the concept but leave the actual reality to our imagination. Conceptually it seems obvious to me that if the ship actually makes it through the loop, it exits fairly smoothly (class 2 or class 3 white water rafting).[[Special:Contributions/162.158.146.52|162.158.146.52]]
:"...wherever the jet originally sucked its water in from..." - from the mains, obviously.[[Special:Contributions/172.69.194.204|172.69.194.204]] 11:05, 21 May 2024 (UTC)

The current paragraph on the title text seems off-base. It seems pretty clear to me that Randall had the idea, managed to get the loop constructed, persuaded the ship to sail to the vicinity (unless it was constructed on a previously planned route), and was attempting to persuade them to enter it ''before'' anyone realised it was a bad idea and objected. He then tried toorganise the passenger poll, and they shut that down too, and fired him. The suggestion that someone else randomly built the thing, separately from him trying to persuade them to use it, doesn't really make any sense.[[Special:Contributions/172.70.90.48|172.70.90.48]] 11:24, 21 May 2024 (UTC)

As a ballpark, spherical cow, estimate: To complete the loop, the centripetal force at the top of the loop has to equal the gravitational force of the ship. Centripetal force is mv^2/r, and gravitational force is mg, so we have v_top^2/r = g, v_top = sqrt(gr). At the top of the loop, the height is 2r, which means you have potential energy 2mgr, and kinetic energy 1/2 mv_top^2 = 1/2 mgr. Thus, at the bottom of the loop, you need kinetic energy 2mgr + 1/2 mgr = 5/2 mgr. This gives us the velocity at the bottom of the loop, 1/2 mv_bot^2 = 5/2 mgr, v_bot = sqrt(5gr). Call the cruise ship 300 m long, the diameter of the loop appears to be about 3 ship lengths, so r = 450 m. So the ship has to enter the loop at 150 m/s, 540 km/h, 335 mph. That's about Mach 0.45, which is probably the first time a cruise ship speed has ever been described with a Mach number. [[Special:Contributions/172.70.135.75|172.70.135.75]] 13:03, 21 May 2024 (UTC)
:Hopefully, they will also have handed out machs to all the passengers...[[Special:Contributions/172.69.43.131|172.69.43.131]] 15:12, 21 May 2024 (UTC)
:The speed is probably much easier to achieve than it sounds, though, as the water will already by at a very high speed and the ship will only need to accelerate the difference between it's final speed and the water's. So we'd also need to find out the speed of the water to know what kind of engine the ship would need to achieve this. [[Special:Contributions/172.70.162.17|172.70.162.17]] 10:41, 22 May 2024 (UTC)

There are human scaled water slide loopings, but they start by having the human drop vertically and then "only" loop up with ~45° inclination: {{w|AquaLoop}}. This probably would not easily scale to cruise ship sizes. Also starting the looping horizontally and going upwards may be a challenge to implement. --[[Special:Contributions/172.71.160.32|172.71.160.32]] 14:29, 21 May 2024 (UTC)

Could this be a reference to Cannonball Loop, the infamous looping waterslide that used to be at New Jersey's notorious Action Park (aka Traction Park or Class Action Park). [[Special:Contributions/172.70.175.74|172.70.175.74]] 15:11, 21 May 2024 (UTC)

Isn't this a giant https://en.m.wikipedia.org/wiki/Cyclonic_separation - device, where the ship will be smashed onto the bottom of the "track"?

2934: Bloom Filter

2024-05-20T13:23:42Z

172.70.162.17: /* Explanation */

{{comic
| number = 2934
| date = May 17, 2024
| title = Bloom Filter
| image = bloom_filter_2x.png
| imagesize = 212x206px
| noexpand = true
| titletext = Sometimes, you can tell Bloom filters are the wrong tool for the job, but when they're the right one you can never be sure.
}}

==Explanation==
{{incomplete|PROBABLY CREATED - Please change this comment when editing this page. Do NOT delete this tag too soon.}}

The comic is about a data structure called a {{w|Bloom filter}}. Software engineers use Bloom filters to check if something is probably in a set or to estimate how many things are in that set, using limited memory. One example: the Chrome web browser used to store a Bloom filter of URLs that were known to be malicious<ref>Chromium Issue 10896048: Transition safe browsing from bloom filter to prefix set. (Closed) – https://chromiumcodereview.appspot.com/10896048/</ref>, based on a database that was too large to store locally. Chrome used that Bloom filter to confirm that it didn’t need to warn the user that they were visiting a malicious page. Only in the rare cases that the Bloom filter said the URL might be malicious, Chrome would send the URL to an external service to confirm whether it was known to be malicious. The developers didn’t want the browser to send ''every'' URL to the external service because that would leak the user’s entire browsing history to the service and would add an unnecessary network delay whenever a web page was loaded.

Here's how it works:

# ''' Adding items:''' When you add an item, it gets hashed (a way of transforming it into numbers) by several hash functions. These hash functions mark certain spots in a big array of bits (think of it as a row of lights that can be on or off).
# ''' Checking items:''' To check if an item is in the set, you hash it with the same functions and see if all the corresponding spots are lit up. If they are, the item might be in the set, but there's a chance of a false positive (the Bloom filter could mistakenly say the item is there when it’s not). If any spot is not lit up, the item is not in the set.
# '''False positives:''' The larger the array compared to the number of items, the lower the chance of false positives. For example, 10 bits per item gives about a 1% false positive rate.
# ''' Counting items:''' By analyzing the activated bits, with appropriate calculations, you can derive an estimate of ''how many'' individual items are 'stored' for confirmation within the array. This estimate's accuracy will depend upon several factors, but more array bits (making themselves potentially available to 'remember' each item) will be one of the most important ones when it comes to narrowing down the likelihood.

In the comic, [[Cueball]] has a 1-bit Bloom filter, which is almost useless. When empty, it correctly says nothing is in the set. But as soon as one item is added, the bit is set to 1, and now it falsely says every possible item is in the set. Its size estimate also becomes "between 1 and infinity," which isn’t helpful.

Having multiple hash functions is pointless for a 1-bit filter since they all end up pointing to the same single bit.

The title text carries the characteristics of the Bloom filter into the decision-making process for choosing a Bloom filter over other candidate data structures. Analogously (according to the text), you can be sure when they are ''not'' the best approach but only conclude that they ''are'' with a limited degree of probability.

==Transcript==
{{incomplete transcript|Do NOT delete this tag too soon.}}
:[Ponytail holds out her hand to Cueball, who is holding a paper with a 1 on it.]
:Ponytail: Does your set contai–
:Cueball: Yeah, probably.

:[Caption below the panel:]
:One-Bit Bloom Filter

{{comic discussion}}

[[Category:Comics featuring Ponytail]]
[[Category:Comics featuring Cueball]]
[[Category:Statistics]]
[[Category:Programming]]

Talk:2933: Elementary Physics Paths

2024-05-20T08:04:36Z

172.70.162.17:

First comment, heh. [[User:Psychoticpotato|Psychoticpotato]] ([[User talk:Psychoticpotato|talk]]) 20:27, 15 May 2024 (UTC)
:See also [[1258: First]]. --[[Special:Contributions/162.158.159.7|162.158.159.7]] 23:21, 15 May 2024 (UTC)
::Let me have my first "first" moment, man. [[User:Psychoticpotato|Psychoticpotato]] ([[User talk:Psychoticpotato|talk]]) 12:46, 16 May 2024 (UTC)
:::Could this be the last first? Or just the first of the last firsts. [[User:N0lqu|-boB]] ([[User talk:N0lqu|talk]]) 14:16, 17 May 2024 (UTC)

I assume the cosmology comment from the alt text is related to the speculative nature of dark matter and dark energy, but I am too ignorant of of cosmology to know if there is something more specific being referenced.[[Special:Contributions/172.69.23.203|172.69.23.203]] 22:27, 15 May 2024 (UTC)
:I think its more jokinly questioning the knowlege of the cosmos, saying "space is big, so are we 100% that EVERYTHING is made of these complicated little things, or just the parts we can see?" [[User:Apollo11|Apollo11]] ([[User talk:Apollo11|talk]]) 00:26, 16 May 2024 (UTC)

::I thought it was a reference to the incompatibility of the leading cosmological theory (Relativity) with Quantum theory. [[Special:Contributions/172.68.210.117|172.68.210.117]] 02:49, 16 May 2024 (UTC)

Am I the only one where it seems like the explanation was written by an AI? It seems like obvious things are left out, like the presence of dark matter in astronomy, or saying “quantum physics” instead of “quantum field theory”. It’s like in some areas it could be convincingly explaining without knowing, a little like chatgpt does. However, I’m thinking a lot of the explanations are like that and I’ve probably participated in it myself … [[Special:Contributions/172.68.23.215|172.68.23.215]] 00:46, 16 May 2024 (UTC)
:The reason we're using "Quantum Theory" (at least my reason) is because thats what the comic used [[User:Apollo11|Apollo11]] ([[User talk:Apollo11|talk]]) 00:59, 16 May 2024 (UTC)
:The initial explanations are indeed generated using automation, so that each day's initial visitors aren't greeted by no explanation at all; visitors with a ''better'' explanation, should feel welcome to contribute. Visitors should not be ''overwriting'' existing explanations with autogenerated content, though; that's a mistake.
:[[User:ProphetZarquon|ProphetZarquon]] ([[User talk:ProphetZarquon|talk]]) 17:05, 18 May 2024 (UTC)
::I believe the point was that 'AI' was used (with or without generous human tweaking to the input to the 'algorithm' and/or post-output selectivity and editing), and this is different from the 'automation' of TheusafBOT/etc which is just a fairly limited (and entirely hand-crafted) "poll, scrape, limited-parse and post" process. As well as going the 'lazy' way of disregarding (or excessively diluting) the initial work in favour of a (mostly?) uncritical adoption of what a hallucination-vulnerable black box process spews out after being trained to just "make something that ''look like'' what a human might write" without every any hope of applying true understanding to the process. [[Special:Contributions/162.158.38.191|162.158.38.191]] 18:56, 18 May 2024 (UTC)

According to the Copenhagen Interpretation, it's not determined whether a physicist studies Condensed Matter or Quantum Field Theory until we open his box. [[User:Doctorhook|Doctorhook]] ([[User talk:Doctorhook|talk]]) 02:45, 16 May 2024 (UTC)
: According to the Communist Russia Interpretation, the Universe studies physicists.[[Special:Contributions/172.71.178.172|172.71.178.172]] 08:22, 16 May 2024 (UTC)

you guys really need to solve your chatgpt problem
--[[Special:Contributions/172.70.143.28|172.70.143.28]] 03:59, 16 May 2024 (UTC)

Schrodinger's 'cat box thought experiment' is more complex than even Schrodinger realised, since for the duration of the experiment the cat assumes EVERY possible quantum state, including 'not actually in the box' and 'suddenly not being a cat any more'.
[[Special:Contributions/172.70.91.231|172.70.91.231]] 05:09, 16 May 2024 (UTC)
:At the conclusion of this test, there will be cake.
:[[User:ProphetZarquon|ProphetZarquon]] ([[User talk:ProphetZarquon|talk]]) 17:01, 18 May 2024 (UTC)

Schrodinger did not argue against QM; he argued against a certain interpretation of it. Specifically, he argued that QM does not tell us how things really are; at most, it tells us what we can detect about those things. His cat in a box idea aims to make clear that we do not know what happens between observations and that using QM to describe this leads to nonsense.
[[Special:Contributions/172.70.46.13|172.70.46.13]] 06:44, 16 May 2024 (UTC)
:I removed the "further examples" and the mentioning of Schrödinger. Interesting for sure, but not relevant for the explanation of the comic. Schrödinger isn't even mentioned in the comic... [[User:Elektrizikekswerk|Elektrizikekswerk]] ([[User talk:Elektrizikekswerk|talk]]) 07:26, 16 May 2024 (UTC)
::Specifically, he used the cat in a box analogy to show why we can (with an ever-increasing confidence) say that the Copenhagen interpretation is baloney. [[User:ProphetZarquon|ProphetZarquon]] ([[User talk:ProphetZarquon|talk]]) 16:59, 18 May 2024 (UTC)
:::Shut up and explain.[[Special:Contributions/172.70.162.17|172.70.162.17]] 08:04, 20 May 2024 (UTC)

It feels like Randall has gone down the same Wikipedia rabbit hole that I have (spurred on by another comic). The universe is full of extremely weird things on every level. Even the Copenhagen Interpretation of QM isn't actually one interpretation. Everyone has different ideas because it's all so weird. I remember my physics teacher telling me about the time before QM was discovered when it seemed like we had figured out most of physics and now it seems like we barely know anything. [[User:Brycemw|Brycemw]] ([[User talk:Brycemw|talk]]) 13:31, 16 May 2024 (UTC)

It seems like there should be a third branch for chemistry, leading to biology. Just putting a bunch of atoms together gives a bunch of new, unrelated properties in the new molecules compared to their constituent atoms. When you look at organic chemistry, especially the self-perpetuating version (life), then the level of complexity is ''huge''. {unsigned|Nutster|16:04, 17 May 2024}}

I was reading it, and as 172.68.23.215 said, it looks like Kyrodes put in multiple overriding edits which directly erased the original explaination in lieu of a ChatGPT version (analysis courtesy of gptzero). I'd personally prefer there being more human-made stuff here, and some of the writing isn't exactly coherent... But this isn't up to me to decide, eh? [[User:Eelitee|Eelitee]] ([[User talk:Eelitee|talk]]) 21:25, 17 May 2024 (UTC)

Yesterday I was trying to read a journal article that was trying to model the way water moves through a soil column and has some of its impurities removed. They were using a system of 12 simultaneous partial differential equations, had dramatically run out of letters for naming variables, constants, and functions, and were nesting equations three deep to try to make the PDEs readable. And this was AFTER they made a large number of simplifying assumptions. To top it off, the results aren't even perfectly accurate for already highly purified water running through a column in a super controlled environment. Reality is complicated, y'all.[[Special:Contributions/172.68.2.100|172.68.2.100]] 14:56, 18 May 2024 (UTC)

Should we be concerned that reality is complicated only to those with too much knowledge (like ourselves, natch) ?
Reality is simple enough to the simple of mind, i.e. writers of school books, teachers relying on those, and those who believe what teachers say. Understanding of reality by the masses (99.9%, maybe more) has not improved any since the Middle Ages, it's faith and trust in the authority of the speaker. Even when "alternate," more "up to date" explanations come around, like string theory, even black holes, it tends to sound not much different from Daniken and his visitors from space, is most often presented as clickbait, etc. [[User:Yamaplos|Yamaplos]] ([[User talk:Yamaplos|talk]]) 01:06, 19 May 2024 (UTC)

Cause and effect don't exist. Even 100% correlation does not have to equal causation. If we combine this theory with Murphy's law and Schrodinger's cat, the universe is destroyed an infinite number of times. Once because every went wrong with the cat in the box but that cataclysm was not caused by the cat it only correlated it so there is no cause for the destruction therefore the universe is destroyed again and again by violating causality by being destroyed in the first place. {{unsigned ip|172.71.30.29|03:04, 19 May 2024}}

2933: Elementary Physics Paths

2024-05-20T08:00:41Z

172.70.162.17: /* Explanation */

{{comic
| number = 2933
| date = May 15, 2024
| title = Elementary Physics Paths
| image = elementary_physics_paths_2x.png
| imagesize = 464x672px
| noexpand = true
| titletext = ==COSMOLOGY==> 'Uhhh ... how sure are we that everything is made of these?'
}}

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

This comic explores the complexities of understanding the fundamental building blocks of the universe.

The absurdity of understanding ''everything'' starting from just understanding basic particles is similar to the fallacy presented in [[1570: Engineer Syllogism]].

In the first panel, Cueball expresses the idea that if he understands the behavior of tiny particles, he'll understand everything. This reflects a common scientific pursuit, {{w|reductionism}}, to uncover the basic principles underlying all physical phenomena in order to understand them. For example, most chemical reactions can be explained as the recombinations of a few dozen common elements.

The comic then splits into two branches representing different fields of physics which refute Cueball's optimistic assumption: {{w|condensed matter physics}} and {{w|quantum field theory}}.

On the left, the concept of {{w|antireductionism}} (or {{w|holism}}) is demonstrated by the Condensed Matter Physics branch. Cueball encounters a cloud of vibrating particles, which symbolizes the complexity that arises when simple particles combine to produce complex behaviors. The issue with reducing down to particles is that the number of different interactions between particles to understand makes the topic no longer simple. This highlights the challenge of predicting macroscopic properties from microscopic interactions, a central theme in condensed matter physics. This is shown in everyday life, from things like a baseball curving through the air, to how a mirror reflects light. [[1734: Reductionism]] also touches on the impracticality of gaining knowledge about a larger construct through understanding its constituent parts.

On the right, in the Quantum Field Theory branch, Cueball is faced with the issue that particles at the quantum level aren't simple. Quantum Field Theory deals with the fundamental particles and forces of nature, and it describes a complex world where particles can behave as both waves and particles simultaneously, among other strange phenomena.

The title text introduces a third branch: the field of {{w|cosmology}}, which deals with the large-scale structure and history of the universe. Cosmology suggests that even our catalog of the most fundamental particles might be inadequate - perhaps an allusion to theorized phenomena like dark matter and dark energy - raising questions about the nature of existence itself.

No matter how you study the universe, it's complicated.{{cn}}

==Transcript==
:[Cueball gestures at a particle, represented as a dot with motion lines around it.]
:Cueball: Everything is made of tiny particles. If I understand those, I'll understand everything!
:[The comic splits into two branches.]
:[Condensed Matter Physics branch]
:[Cueball is fretting over a cloud of particles.]
:Cueball: Oh no.
:Cueball: Simple particles can combine to produce complex behaviors.
:[Quantum Field Theory branch]
:[Cueball is fretting over the same particle as in the first panel.]
:Cueball: Oh no.
:Cueball: '''''These particles aren't simple!'''''

{{comic discussion}}

[[Category:Comics featuring Cueball]]
[[Category:Physics]]
[[Category:Cosmology]]

Talk:2933: Elementary Physics Paths

2024-05-19T14:32:39Z

172.70.162.17:

First comment, heh. [[User:Psychoticpotato|Psychoticpotato]] ([[User talk:Psychoticpotato|talk]]) 20:27, 15 May 2024 (UTC)
:See also [[1258: First]]. --[[Special:Contributions/162.158.159.7|162.158.159.7]] 23:21, 15 May 2024 (UTC)
::Let me have my first "first" moment, man. [[User:Psychoticpotato|Psychoticpotato]] ([[User talk:Psychoticpotato|talk]]) 12:46, 16 May 2024 (UTC)
:::Could this be the last first? Or just the first of the last firsts. [[User:N0lqu|-boB]] ([[User talk:N0lqu|talk]]) 14:16, 17 May 2024 (UTC)

I assume the cosmology comment from the alt text is related to the speculative nature of dark matter and dark energy, but I am too ignorant of of cosmology to know if there is something more specific being referenced.[[Special:Contributions/172.69.23.203|172.69.23.203]] 22:27, 15 May 2024 (UTC)
:I think its more jokinly questioning the knowlege of the cosmos, saying "space is big, so are we 100% that EVERYTHING is made of these complicated little things, or just the parts we can see?" [[User:Apollo11|Apollo11]] ([[User talk:Apollo11|talk]]) 00:26, 16 May 2024 (UTC)

::I thought it was a reference to the incompatibility of the leading cosmological theory (Relativity) with Quantum theory. [[Special:Contributions/172.68.210.117|172.68.210.117]] 02:49, 16 May 2024 (UTC)

Am I the only one where it seems like the explanation was written by an AI? It seems like obvious things are left out, like the presence of dark matter in astronomy, or saying “quantum physics” instead of “quantum field theory”. It’s like in some areas it could be convincingly explaining without knowing, a little like chatgpt does. However, I’m thinking a lot of the explanations are like that and I’ve probably participated in it myself … [[Special:Contributions/172.68.23.215|172.68.23.215]] 00:46, 16 May 2024 (UTC)
:The reason we're using "Quantum Theory" (at least my reason) is because thats what the comic used [[User:Apollo11|Apollo11]] ([[User talk:Apollo11|talk]]) 00:59, 16 May 2024 (UTC)
:The initial explanations are indeed generated using automation, so that each day's initial visitors aren't greeted by no explanation at all; visitors with a ''better'' explanation, should feel welcome to contribute. Visitors should not be ''overwriting'' existing explanations with autogenerated content, though; that's a mistake.
:[[User:ProphetZarquon|ProphetZarquon]] ([[User talk:ProphetZarquon|talk]]) 17:05, 18 May 2024 (UTC)
::I believe the point was that 'AI' was used (with or without generous human tweaking to the input to the 'algorithm' and/or post-output selectivity and editing), and this is different from the 'automation' of TheusafBOT/etc which is just a fairly limited (and entirely hand-crafted) "poll, scrape, limited-parse and post" process. As well as going the 'lazy' way of disregarding (or excessively diluting) the initial work in favour of a (mostly?) uncritical adoption of what a hallucination-vulnerable black box process spews out after being trained to just "make something that ''look like'' what a human might write" without every any hope of applying true understanding to the process. [[Special:Contributions/162.158.38.191|162.158.38.191]] 18:56, 18 May 2024 (UTC)

According to the Copenhagen Interpretation, it's not determined whether a physicist studies Condensed Matter or Quantum Field Theory until we open his box. [[User:Doctorhook|Doctorhook]] ([[User talk:Doctorhook|talk]]) 02:45, 16 May 2024 (UTC)
: According to the Communist Russia Interpretation, the Universe studies physicists.[[Special:Contributions/172.71.178.172|172.71.178.172]] 08:22, 16 May 2024 (UTC)

you guys really need to solve your chatgpt problem
--[[Special:Contributions/172.70.143.28|172.70.143.28]] 03:59, 16 May 2024 (UTC)

Schrodinger's 'cat box thought experiment' is more complex than even Schrodinger realised, since for the duration of the experiment the cat assumes EVERY possible quantum state, including 'not actually in the box' and 'suddenly not being a cat any more'.
[[Special:Contributions/172.70.91.231|172.70.91.231]] 05:09, 16 May 2024 (UTC)
:At the conclusion of this test, there will be cake.
:[[User:ProphetZarquon|ProphetZarquon]] ([[User talk:ProphetZarquon|talk]]) 17:01, 18 May 2024 (UTC)

Schrodinger did not argue against QM; he argued against a certain interpretation of it. Specifically, he argued that QM does not tell us how things really are; at most, it tells us what we can detect about those things. His cat in a box idea aims to make clear that we do not know what happens between observations and that using QM to describe this leads to nonsense.
[[Special:Contributions/172.70.46.13|172.70.46.13]] 06:44, 16 May 2024 (UTC)
:I removed the "further examples" and the mentioning of Schrödinger. Interesting for sure, but not relevant for the explanation of the comic. Schrödinger isn't even mentioned in the comic... [[User:Elektrizikekswerk|Elektrizikekswerk]] ([[User talk:Elektrizikekswerk|talk]]) 07:26, 16 May 2024 (UTC)
::Specifically, he used the cat in a box analogy to show why we can (with an ever-increasing confidence) say that the Copenhagen interpretation is baloney.
::[[User:ProphetZarquon|ProphetZarquon]] ([[User talk:ProphetZarquon|talk]]) 16:59, 18 May 2024 (UTC)

It feels like Randall has gone down the same Wikipedia rabbit hole that I have (spurred on by another comic). The universe is full of extremely weird things on every level. Even the Copenhagen Interpretation of QM isn't actually one interpretation. Everyone has different ideas because it's all so weird. I remember my physics teacher telling me about the time before QM was discovered when it seemed like we had figured out most of physics and now it seems like we barely know anything. [[User:Brycemw|Brycemw]] ([[User talk:Brycemw|talk]]) 13:31, 16 May 2024 (UTC)

It seems like there should be a third branch for chemistry, leading to biology. Just putting a bunch of atoms together gives a bunch of new, unrelated properties in the new molecules compared to their constituent atoms. When you look at organic chemistry, especially the self-perpetuating version (life), then the level of complexity is ''huge''. {unsigned|Nutster|16:04, 17 May 2024}}

I was reading it, and as 172.68.23.215 said, it looks like Kyrodes put in multiple overriding edits which directly erased the original explaination in lieu of a ChatGPT version (analysis courtesy of gptzero). I'd personally prefer there being more human-made stuff here, and some of the writing isn't exactly coherent... But this isn't up to me to decide, eh? [[User:Eelitee|Eelitee]] ([[User talk:Eelitee|talk]]) 21:25, 17 May 2024 (UTC)

Yesterday I was trying to read a journal article that was trying to model the way water moves through a soil column and has some of its impurities removed. They were using a system of 12 simultaneous partial differential equations, had dramatically run out of letters for naming variables, constants, and functions, and were nesting equations three deep to try to make the PDEs readable. And this was AFTER they made a large number of simplifying assumptions. To top it off, the results aren't even perfectly accurate for already highly purified water running through a column in a super controlled environment. Reality is complicated, y'all.[[Special:Contributions/172.68.2.100|172.68.2.100]] 14:56, 18 May 2024 (UTC)

Should we be concerned that reality is complicated only to those with too much knowledge (like ourselves, natch) ?
Reality is simple enough to the simple of mind, i.e. writers of school books, teachers relying on those, and those who believe what teachers say. Understanding of reality by the masses (99.9%, maybe more) has not improved any since the Middle Ages, it's faith and trust in the authority of the speaker. Even when "alternate," more "up to date" explanations come around, like string theory, even black holes, it tends to sound not much different from Daniken and his visitors from space, is most often presented as clickbait, etc. [[User:Yamaplos|Yamaplos]] ([[User talk:Yamaplos|talk]]) 01:06, 19 May 2024 (UTC)

Cause and effect don't exist. Even 100% correlation does not have to equal causation. If we combine this theory with Murphy's law and Schrodinger's cat, the universe is destroyed an infinite number of times. Once because every went wrong with the cat in the box but that cataclysm was not caused by the cat it only correlated it so there is no cause for the destruction therefore the universe is destroyed again and again by violating causality by being destroyed in the first place. {{unsigned ip|172.71.30.29|03:04, 19 May 2024}}

2932: Driving PSA

2024-05-15T09:56:12Z

172.70.162.17: /* Explanation */

{{comic
| number = 2932
| date = May 13, 2024
| title = Driving PSA
| image = driving_psa_2x.png
| imagesize = 414x538px
| noexpand = true
| titletext = This PSA brought to you by several would-be assassins who tried to wave me in front of speeding cars in the last month and who will have to try harder next time.
}}

==Explanation==
{{incomplete|Created by a CLUELESS BOT DRIVING AT 72.42048 km/h (20.1168 m/s) (outpaced by raptor) - Please change this comment when editing this page. Do NOT delete this tag too soon.}}

A PSA is a {{w|Public Service Announcement}}. Some drivers, when having priority by the rules of the road (termed "{{w|Traffic#Passage_priority_(right_of_way)|right of way}}", in US legal statutes), will let others take it before them. This comic is saying that people who exhibit this behavior are actually {{w|The_Terminator|Terminator}}-style assassins, sent to kill people by sending them into contention with other traffic and making it look like an accident.

Despite the PSA's conspiratorial presentation, this is good advice. This gesture is sometimes called "the wave of death", because it is common for such "generous" drivers to forget about other lanes that also have priority over the crossing driver or pedestrian, and cluelessly wave them through right into the path of another car which is traveling at full speed. Always check for yourself that your way is clear, and if your view is blocked, sit tight. In this comic, there is a queue of vehicles (including a large tractor-trailer truck) held up by the 'considerate' driver that would obscure the immediate view of the moving vehicle at the most potentially dangerous time. Randall's exaggeration has comical intent and also could help make the advice more memorable - and therefore more likely to save lives.

The title text explains that Randall made this PSA because he has experienced this multiple times in the last month. Since this behavior is often catastrophically dangerous, he believes the action could only be performed by time-travelling assassins. As such, he has not accepted the right of way, and thus believes himself to have evaded death. He then says that, since he already knows this trick, the assassins should try harder. Such a claim that assassins are actively trying to murder him using "right of way" would be treated as a conspiracy theory by most people. Furthermore, if there really is an assassin with time-traveling capabilities out to get Randall, there would probably be more efficient ways to kill him (and make it look like an accident), like traveling back to when Randall was a child. The "try harder" bit also doesn't make sense for time travelers, since they can travel back to ''before'' he's learned this valuable lesson.

===Alternate interpretation of the waving gesture===

Note that in this comic, as illustrated, there is potentially sufficient room for the waiting car to pass the first set of lanes and (illegally) stop next to the median, protected from passing traffic on both sides, to stop halfway through its left turn to wait for the second stream of traffic to subside. Waiting in this turning area next to the median is a common maneuver in rural US areas where these types of non-signaled intersections are common, though it is illegal in many jurisdictions. (Turn lanes are not legally usable for merging in many, although not [https://le.utah.gov/xcode/Title41/Chapter6A/41-6a-S801.html?v=C41-6a-S801_2015051220150512 all], jurisdictions, & stopping in an intersection is also not permitted.) There's no reason to assume that the would-be assassin is not simply waving the waiting car to the safety of the median area. Randall's message of caution is still sound, but he accidentally illustrated an intersection diagram that fails to optimally support his case.

[[File:2932 Alt.png|frameless|Illustrtion showing room to safetly turning left halfway, stopping in the median]]

^Stopping in this area is illegal & may incur a traffic citation.{{citation needed}}

==Transcript==
{{incomplete transcript|Do NOT delete this tag too soon.}}
:Driving PSA:
:Random drivers can’t grant you the right of way as a gift.
:[A T-intersection with a major road separated by a concrete median going from top to bottom, and a minor road coming from the left]
:[A car is stopped at the end of the minor road]
:First car [arrow pointing to car]: You, waiting to turn left
:[A second car is stopped in the dedicated left turn lane of the right major road, with a third car, a truck hauling cargo, and a fourth car lined up behind it]
:Second car [in a speech bubble]: You go ahead! I’m feeling generous.
:Second car [arrow pointing to car]: Time traveler pretending to be polite
:[In the second lane is a black arrow pointing upwards, with text below it reading 45 MPH, and a fifth car below the text]
:Fifth car [arrow pointing to car]: Car that they are waving you into the path of
:If someone waves you out, assume that they are an assassin sent from the future to kill you and make it look like an accident.

{{comic discussion}}

[[Category:Time travel]]

2931: Chasing

2024-05-13T18:56:19Z

172.70.162.17: /* Explanation */

{{comic
| number = 2931
| date = May 10, 2024
| title = Chasing
| image = chasing_2x.png
| imagesize = 462x474px
| noexpand = true
| titletext = Certain hybrid events can only happen in certain locations where all the conditions are present; chasers flock to the area in and around Kansas known as tumbleweed-colliding-with-possum alley.
}}

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

This comic is a scatter plot comparing how exciting it is to see various things with how possible it is to chase them using a convoy of coordinated vehicles.

The least chasable are stationary places like the {{w|Grand Canyon}} or {{w|International Date Line}}. It makes no sense to chase them because they don't move around, you simply go to their known locations. At the other end of the chasability spectrum are animals that move around rapidly, and fleeting astronomical and atmospherical phenomena like {{w|clouds}}, {{w|meteors}} and {{w|aurora}}. However, some of these are difficult to chase because they're small and hard to detect from a moving vehicle, e.g. {{w|gnats}}.

In the top-right position of most chasable and most exciting, tornadoes have a community of 'chasers' who attempt to predict their appearance and get as close to them as possible, which was the subject of a {{w|Twister_(1996_film)|1996 film}}, for which a sequel was due to be released shortly after this comic.

The title text suggests that combining some of these things into a single event would multiply the excitement derived from them. This makes sense on the surface, as the rarity value of the resulting event would be high, so even two relatively mundane events could, when combined, produce an interesting outcome. However, it somewhat undermines this by suggesting that, in this particular location, the event in question (possums being hit by passing tumbleweeds) is relatively routine.

{| class="wikitable sortable"
|-
! rowspan="2" | Entity !! colspan="2" | Estimate of... !! rowspan="2" | Explanation
|-
! Chasing || Excitement
|-
| {{w|Grand Canyon|The Grand Canyon}}|| 10% || 90% || Stationary place in Arizona. It's the largest canyon in the US (but not the world), in addition to being very beautiful due to its depth and the color changes from different geological strata. Seeing a famous tourist attraction in person is exciting.
|-
| {{w|Niagara Falls}} || 15% || 75% || A generally stationary place on the border of US and Canada, between the state of New York and the province of Ontario. The waterfall is the largest in North America by width and water volume, making it very beautiful to watch.
|-
| {{w|Tourist attractions}} || 15% || 55% || Other stationary places that attract many tourists (e.g. national parks, monuments and historic places) are exciting to see.
|-
| {{w|Tourist traps}} || 10% || 40% || Stationary places that market themselves as tourist attractions, but don't really have much to offer and exist mainly to sell food and souvenirs.
|-
| {{w|Hazard (golf)#Bunker|Sand trap}} || 15% || 25% || Pits of sand in golf courses. If your golf ball lands in one, it loses all its momentum almost instantly and it is difficult to hit out to the grassy portions (fairways or greens), which is why it is a "trap". A convoy of golf-carts might "chase" a golf-ball to the sand trap it lands in, but this would not be very exciting.
|-
| The International Date Line || 15% || 10% || A jagged conceptual line running from the North to South poles around 180 degrees of longitude, used to separate the time zones that start and end each day. There's nothing to see at these locations, as the line is a concept and does not actually coincide with anything in real life, as well as mostly being in the Pacific Ocean, by-passing actual landfall, as well as across the Arctic Southern Oceans. The zones for {{w|time in Antarctica}} are already more pragmatically simplified or just fall back to {{w|Coordinated Universal Time}}.
|-
| Meteors || 35% || 95% || Also called "shooting stars". These are fleeting streaks of light that are visible when bits of rock or dust enter the atmosphere and burn up. These are generally rare, making them exciting to see, but there are {{w|meteor showers}} when many are visible due to the Earth passing through a large cloud of dust (usually the remnants of a comet). To astronomy buffs, these can be like natural fireworks shows. Because each meteor streak lasts for a fraction of a second, it's not generally possible to chase them, although if the rock is large enough it may survive to the ground and become a {{w|meteorite}}, which chasers [[1723: Meteorite Identification|may be able to find]] by tracking its path through the sky.
|-
| {{w|Rainbows}} || 35% || 90% || A visual effect that occurs when sunlight is refracted by water droplets in the air, spreading the light into a spectrum of different colors. Their 'location' is relative to each observer, so long as the necessary components combine correctly in the first place, so any coordinated movement is restricted to finding the right sort of standpoint from which a rainbow is visible. Moving "towards" a rainbow typically results in the rainbow "moving away" from the observer at the same speed.
|-
| {{w|Comets}} || 40% || 85% || Comets are chunks of rock and ice that orbit the Sun, usually in highly eccentric orbits that take them from the inner Solar System to the {{w|Kuiper Belt}} or {{w|Oort Cloud}} at the extreme outskirts of the Solar System. Few of them are visible to the naked eye until they are close to the Sun. They're exciting to see because they are rare, and one of the few astronomical objects that looks like more than just a tiny dot because there is a glowing "tail". While they are moving very rapidly through the Solar System, from the Earth they don't appear to move much faster than planets. So there's no need to chase them; when near the Earth, they will be visible from much of the planet for days or weeks.
|-
| {{w|Sunsets}} || 35% || 75% || Disappearance of the Sun below the horizon, should happen usually once every 24 hours (except close to the poles). Depending on weather conditions, they can sometimes be very pretty. Traveling around the Earth from east to west is needed for a continuous view of a sunset.
|-
| {{w|The Moon}} || 40% || 70% || Earth's only natural satellite with a predictable orbit. While Randall is most likely referring to chasing the Moon on the Earth, the {{w|Apollo Missions}} very much fit the description of "chase in a convoy of vehicles coordinating over radio and using instruments and data to find optimal viewing locations". That is exactly what the astronauts did, they "chased" the Moon (the Moon was moving while they flew towards it) using a convoy of vehicles (the multi-stage rockets) while they "coordinated" to Earth with their radios. Only 12 people (the {{w|Apollo astronauts}}) have actually visited it in person; the rest of us see it from about 250,000 miles (400,000 km) away. Weather permitting, it's visible for about half of every day/night cycle (though may be more obvious when this occurs significantly in the night sky, for several reasons). It doesn't move quickly in the sky, by apparent movement, so little chasing is necessary. A 'supermoon' is when the Moon looks the largest and shiniest, occurring when a full moon appears closest to the Earth in its orbit, though Randall doesn't consider this phenomenon impressive (How To, chapter 21).
|-
| Unusual clouds || 40% || 55% || Clouds with unique forms or shapes, like {{w|Lenticular clouds}}. People may want to chase after them if they’re drifting away, as they may want to view the cloud further, perhaps for scientific purposes.
|-
| Regular clouds || 35% || 40% || Clouds are an aerosol consisting of a visible mass of miniature liquid droplets. People may chase clouds for the same reasons as wanting to chase unusual clouds.
|-
| {{w|Fog}} || 30% || 25% || Atmospheric condition where water droplets are very dense near the Earth's surface, resulting in a visible haze. Fog does not move much, but dissipates over time. Fog might pull away from its least ideal conditions before it vanishes completely. This entry might be a reference to {{w|Phileas Fogg}}, who was pursued around the world.
|-
| {{w|Rain}} || 35% || 20% || Water droplets falling from clouds. In most of the world, this is a pretty common occurrence. Unless the volume is extremely high, there's rarely much excitement due to them, but extreme cases may cause flooding that can be dangerous. The only people who might chase rain are weather reporters who want to get wet.
|-
| {{w|Gnats}} || 35% || 5% || Hardly anybody wants to track down gnats, as they are annoying to chase and difficult to see, but people could theoretically use advanced instruments to do so.
|-
| Aurora || 60% || 95% || Impressive light displays that result from excitement of the Earth's {{w|magnetosphere}} by charged particles in the {{w|solar wind}}. These are generally only visible in high latitudes, so most people do not live where they're visible. Their visibility can be tracked and forecasted via monitoring of solar wind output from the Sun, and particularly intense episodes can be predicted (as well as locations for viewing) on the basis of the solar cycle and solar flare activity. The release of this comic coincided with the strongest geomagnetic storm warning forecasted by the National Oceanographic and Atmospheric Administration (NOAA) in 20 years [https://www.swpc.noaa.gov/news/g4-watch-effect-may-11] ({{w|May 2024 solar storms}}).
|-
| Your favorite band's shows || 60% || 80% || Musical acts often plan tours, where they go around the country (or world) putting on shows every few days. Extreme fans with time (and money) on their hands may "chase" them by going to a series of their shows. Since the tour dates are planned and publicized well in advance, the shows are easy to find. However, depending on the popularity of your favorite band, this might be an expensive hobby, especially for optimal viewing. Also, tickets may be sold out.
|-
| Rare birds || 60% || 60% || Many birders will "twitch" to see rare birds, and this requires a fair amount of checking location, behavior, etc. Also, rare birds tend to be exciting to see.
|-
| Regular birds || 55% || 40% || These are easier to see than rare birds.
|-
| Regular balloons || 55% || 25% || Both children and adults accidentally let go of helium balloons, and may attempt to chase after them to retrieve them.
|-
| {{w|Tumbleweed|Tumbleweeds}} || 60% || 15% || A roughly spherical portion of certain plants that breaks off from its roots and rolls along the ground, propelled by winds, to distribute the seeds of the parent plant. Most people don't find them very interesting to look at, and they're often used as a shorthand for nothing of interest happening. They don't usually travel very quickly, so it would be possible to chase them if you were so inclined. The locomotion of tumbleweeds is of interest to ecologists, as the non-native and extremely invasive plant disperses its seeds across a region.
|-
| {{w|Speed_limit_enforcement|Speed traps}} || 65% || 5% || A section of a road where police often wait for passing drivers who are exceeding the speed limit, so they can catch them and issue speeding tickets. Frequent drivers, especially truck drivers, have developed systems to warn each other of these locations ({{w|citizens band radio}} were once the most popular method, now this can be done using mobile phone using services like {{w|Waze}}).
|-
| {{w|Tornadoes}} || 85% || 95% || Wanting to witness a tornado is the typical objective of {{w|storm chaser}}s.
|-
| {{w|Whales}} || 85% || 90% || Widely distributed and diverse group of marine mammals. They are some of the largest animals to ever live, and often travel in groups, making them exciting and easy to see (when active at the surface). They have often been chased by humans, both for the purposes of hunting and exploiting them as a resource and by tourist-oriented whale-watching trips.
|-
| {{w|Icebergs}} || 85% || 75% || Piece of freshwater ice broken off a glacier or ice shelf. These come in many sizes and shapes, making it interesting to see a new one. At the time of this comic, there had recently been substantial interest in tracking the progress of the giant {{w|Iceberg A23a}}.
|-
| {{w|Hot air balloons}} || 80% || 60% || An aircraft whose bag is filled with heated air. Hot air balloons are ridden for a variety of reasons (entertainment, sport, advertisement, etc.) and they usually involve a "chase crew" of people on the ground. To an uninvolved observer, catching an unexpected glimpse of an airborne balloon is a moderately exciting event; giving chase is not advised, however, as it may interfere with the chase crew's operation and may be perceived as a hostile act, thereby creating ''uncomfortable'' levels of excitement.
|-
| {{w|Radiosondes}} || 85% || 50% || Small instruments carried in weather balloons to gather and transmit atmospheric parameters. There's not much to see in them, but they're easy to track with a proper receiver.
|-
| Neighborhood possums || 85% || 35% || "Possum" is a common term for {{w|Virginia opossum}}s, the only species of opossum found in North America. In urban areas they will get into human garbage, and may carry diseases, so many may consider them pests and hunt them. A coordinated group of hunters can track them.
|-
| {{w|Ice cream trucks}} || 85% || 25% || Vans that sell ice cream. They're easy to chase because they often play music and/or ring a loud bell so customers will know they're coming, and make frequent stops to allow customers to make purchases. Ice cream trucks may typically be chased by children too young to drive a convoy of vehicles for their pursuit, but their excited screams might provide data that can be used to track an ice cream truck through a city.
|-
| Other chasers || 90% || 10% || May result in an awkward or friendly encounter if met in person. Chasers may bond over their enjoyment of chasing various objects, much like how [[Geohashing|geohashers]] connect with each other at specific geohashed locations. However, another group of chasers might not appreciate it if they find out that they're being the target themselves.
|}

==Transcript==
{{incomplete transcript|Do NOT delete this tag too soon.}}
:[An X Y axis graph]
:[Y axis label:]
:Exciting to see in person
:[X axis label:]
:Possible to chase in a convoy of vehicles coordinating over radio and using instruments and data to find optimal viewing locations?
:[X and Y axis values (from bottom left):]
:No
:Yes

:[Top left quarter:]
:The Grand Canyon
:Meteors
:Rainbow
:Comets
:Niagara Falls
:Sunsets
:The Moon
:Tourist attractions
:Unusual clouds

:[Top right quarter:]
:Aurora
:Tornadoes
:Whales
:Your favorite band's shows
:Icebergs
:Rare birds
:Hot air balloons

:[Bottom left quarter:]
:Tourist traps
:Regular clouds
:Sand traps
:Fog
:Rain
:The International Date Line
:Gnats

:[Bottom right quarter:]
:Regular birds
:Radiosondes
:Neighborhood possums
:Regular balloons
:Ice cream trucks
:Tumbleweeds
:Speed traps
:Other chasers

{{comic discussion}}

[[Category:Charts]]
[[Category:Rankings]]
[[Category:Food]]
[[Category:Tornadoes]]
[[Category:Animals]]
[[Category:Weather]]