explain xkcd - User contributions [en]

explain xkcd:Community portal/Technical

2025-06-02T16:31:06Z

172.70.90.109: /* Special:ContributionScores on Main Page busts caching, causing load */

3092: Baker's Units

2025-05-22T12:29:10Z

172.70.90.109: /* Explanation */ Doesn't stop their use. Though might fall off lookup-tables, or "beat a natural 12", in various ways, and otherwise skew the probability curve (could still be 'balanced', if numbered appropriately, but not quite so Normally Distributed).

{{comic
| number = 3092
| date = May 21, 2025
| title = Baker's Units
| image = bakers_units_2x.png
| imagesize = 349x310px
| noexpand = true
| titletext = 169 is a baker's gross.
}}

==Explanation==
{{incomplete|This page was created by baker's bot. Don't remove this notice too soon.}}

A '{{w|Dozen#Baker's_dozen|baker's dozen}}' is an expression referring to the number 13, as opposed to the normal 'dozen', meaning 12. This stems from a tradition in medieval times whereby salespeople would include 13 items when selling a 'dozen'. This was due to them having to pay penalties (in some regions, draconian ones) when customers were sold one item short, or not enough weight. To avoid the customer complaints and the penalty, bakers added a safety margin that allowed them to still serve a dozen in a hurry: If a miscount happened the baker would have given out twelve rolls just as ordered; if no miscount happened the baker would just be short of one inexpensive item.

[[Randall]] proceeds to apply this principle to other things involving the number 12. A reader might anticipate this means simply applying a count of 13 of a thing, or adding one to the most prominent quantity. But it slowly becomes clear that, instead, Randall finds something about the thing that is comprised of 12 units, changes that to 13, and demonstrates the logical consequence.

The results gradually become more unexpected and silly:
* Imperial feet are 12 inches long; a 'baker's foot' would be 13 inches long.
* Noon is 12:00 o'clock ("twelve hundred hours/Juliett" in 24-hour {{w|24-hour clock#Military time|military parlance}}); 'baker's noon' would be 1 o'clock PM ("thirteen hundred hours", etc).
* Dodecahedra have 12 faces ("dodeca" = "twelve"). The best-known kind of {{w|dodecahedron}} is the regular dodecahedron, a {{w|Platonic solid}} whose faces are regular pentagons (the shape that most {{w|Dice#Polyhedral dice|d12}}s take the form of), but there are others such as the {{w|rhombic dodecahedron}} and {{w|Pyritohedron#Pyritohedron|pyritohedron}}. a 'baker's dodecahedron' would have thirteen faces, making it, in fact, a tridecahedron, typically a form with triangles, squares and pentagons. Tridecahedrons are not Platonic solids, and their use in dice-based games (though not impossible) would result in an unbalanced skew of possibilities, as well as one extra result (perhaps zero or thirteen) that a gaming system might not be designed to anticipate.
* Years have 12 months; a baker would celebrate 'baker's New Year's Eve' after an extra thirteenth month, on January 31 (and implying that their New Year would shift forward each year).
* Octaves are comprised of 12 half-steps (a half-step is the distance between adjacent notes, such as F and F#). A 'baker’s octave' would have 13 half-steps (corresponding to a minor ninth) and cause problems in musical composition, as octaves (of the baker’s variety) would be dissonant, instead of being consonant. However, Randall's musical notation actually shows a ''major'' ninth, with ''fourteen'' half-steps. If he wanted thirteen half-steps, Randall could have used D♭ instead of D, or drawn a bass clef instead of a treble clef.
* Trial juries in the Anglo-Saxon law tradition ({{w|Common Law}}) consist of 12 peers. The 'baker’s jury' would have 13 peers. This might be considered to make little practical difference, though it does mean that (in situations where a jury is allowed to present a majority verdict instead of requiring unanimity), the odd number of jurors would prevent exact ties. (Note that {{w|Trial by jury in Scotland|Scottish juries}}, in particular, start with the expectation of there being 15 jurors, and may well end up reduced to 13 or even 12.)
* The {{w|Flag of Europe}} has 12 stars forming a circle (as a symbol of harmony); unlike in the US flag, the stars do not represent member states. The flag was first adopted by the Council of Europe in 1955, when it already had 13 members - today there are over 40. The European Communities adopted the Flag of Europe in 1986 before the EC turned into the European Union. A 13th star could potentially be added to the baker's EU flag, to make a 'baker's EU flag', without major damage to the symbol. In the United States, thirteen stars in a circle is associated with the {{w|Betsy Ross flag}}, the first U.S. flag.
* Magnesium is the element with the ordinal number 12, with twelve protons. Aluminum is number 13, and is a very different material.{{Citation needed}} 'Baker's magnesium' actually has more applications in baking (namely, tinfoil, which is actually made of aluminum, not tin), but it does not have as much nutritional value.
* In the title text, a count of 144 (12x12) is a gross. Thus, 169 (13x13) would be a 'baker's gross', an addition of not just one but 25 units.

==Transcript==
{{incomplete transcript|Don't remove too soon.}}
:Baker's units
:[A formation comprising of 13 items] - Baker's dozen
:[A ruler divided into 13 parts] - Baker's foot
:1:00 PM - Baker's noon
:[A polyhedron with 13 faces] - Baker's dodecahedron
:January 31st - Baker's New Year's Eve
:[Two notes on a staff 13 half-steps apart] - Baker's octave
:[13 people standing in a row] - Baker's jury
:[A flag with 13 stars forming a circle] - Baker's EU flag
:Aluminum - Baker's magnesium

{{comic discussion}}<noinclude>
[[Category:Food]]
[[Category:Music]]
[[Category:Chemistry]]
[[Category:Math]]

Talk:3067: SawStart

2025-03-27T12:17:18Z

172.70.90.109: Undo revision 370530 by Ozymandias (talk) Difficult edit to make. Oz removing Oz's comment (their preorogative) but not removing some IP's reply to it makes a strange reply to the prior comment

It's weird seeing a totally empty explanation, also whats the point of sawstop, don't they just use vibrating blades? [[Special:Contributions/104.23.190.110|104.23.190.110]] 12:40, 24 March 2025 (UTC)
:SawStop is for rotating blades, like you would use for sawing wood. I'm sure there's a good reason why they don't use vibrating blades there, the most likely is "wood is harder than a plaster cast". I could also imagine that vibrating blades don't create nice cuts, which doesn't matter with a plaster cast that will be disposed of, but very much matters with wood used for construction. --[[User:Coconut Galaxy|Coconut Galaxy]] ([[User talk:Coconut Galaxy|talk]]) 13:16, 24 March 2025 (UTC)
::Oscillating saws for cutting wood exist, and you could use one to make a long cut, but traditional circular saws are much faster and make straighter cuts. [[Special:Contributions/172.68.234.66|172.68.234.66]] 20:55, 26 March 2025 (UTC)

empty explanation is freaky woah [[Special:Contributions/172.69.194.204|172.69.194.204]] 12:42, 24 March 2025 (UTC)
:Every explanation is empty, at least for a short amount of time. And this is not the earliest that a comic went up (shortly after midday, UK time, when it's not unknown for them to not arrive until after the midnight at the end of the designated publication day), but it looks like you (both, including first-poster at the top) have had the good luck/fortune to be just casually checking for new changes to old articles on the site and instead get 'first look' at the newest addition to it. Of course, it'll be a few hours before most of the article gets fine-tuned into some form of 'completion'. [[Special:Contributions/172.70.86.157|172.70.86.157]] 13:23, 24 March 2025 (UTC)
sudo systemctl stop saw-start.service [[Special:Contributions/172.69.208.132|172.69.208.132]] 13:11, 24 March 2025 (UTC)
:yay you saved the world! --[[User:Bb777|hi]] ([[User talk:Bb777|talk]]) 14:08, 24 March 2025 (UTC)
:"Failed to stop saw-start.service: Access restricted by systemd security policies"
:sudo holding-in-the-power-button doesn't work either.[[Special:Contributions/172.69.34.139|172.69.34.139]] 17:26, 24 March 2025 (UTC)

I'm 99% sure that the system is designed to start a ''stopped'' blade up to full speed within milliseconds, not just increase the speed of a spinning blade. --[[User:Coconut Galaxy|Coconut Galaxy]] ([[User talk:Coconut Galaxy|talk]]) 13:22, 24 March 2025 (UTC)

WAITER, WAITER, MORE [[Black Hat]] PLEASE [[User:CalibansCreations|'''Caliban''']] ([[User talk:CalibansCreations|talk]]) 13:31, 24 March 2025 (UTC)

Because of gyroscopic precession, a still spinning (unstoppable?) blade, removed from its axle and housing, would be /very/ difficult and dangerous to dispose of. I'm a woodworker and I think I'll be having nightmares tonight.
-DW [[Special:Contributions/172.69.23.176|172.69.23.176]] 13:36, 24 March 2025 (UTC)
: At least if it's unstoppable we can use it as a free source of energy! [[Special:Contributions/172.69.195.62|172.69.195.62]] 14:01, 24 March 2025 (UTC)

As a woodworker, one note I would like to make is that while the sawblade ''can'' be damaged by cartridge activation, it is not ''required'' that it be replaced. It is possible to have the blade inspected and potentially repaired and continue to use it. That is addressed in SawStop's FAQ https://www.sawstop.com/sawstop_faq/can-the-blade-be-reused-if-the-safety-system-brake-is-activated/ [[Special:Contributions/172.69.33.189|172.69.33.189]] 15:04, 24 March 2025 (UTC)

The [citation needed] for violating other laws probably means that law enforcement should issue a citation to the manufacturer. [[User:Barmar|Barmar]] ([[User talk:Barmar|talk]]) 15:21, 24 March 2025 (UTC)

General observation from a s/w test engineer/woodworker: Original version of the Sawstop used a shotgun shell to fire a stopper into the sawblade which absolutely did destroy the blade. (and made enough noise to pretty much ensure a 'code brown' if you triggered the stop system.) Newer version uses a high tension spring along with a deformable aluminum stopper assembly to absorb the energy and bring the blade to a stop. The advantage of the deformable aluminum assembly is that you can remove it from the blade (with care) and as noted can put the sawblade back to work. However you need a new ($200-ish) stopper assembly before you can re-start the saw. Having a family member who is a retired emergency room doctor who would regularly email me 'stories from work' of woodworker injuries who came through her ER, I can assure you that a tablesaw is pretty much the most dangerous woodworking tool in a typical woodshop. That being said, its quite amusing to me that "SawStop" became XKCD worthy. SawStop is somewhat notorious in the woodworking community because of their highly obnoxious business practices with regards patent and legal attacks on business competitors who came up with alternative approaches to the 'saw brake' or 'saw safety' system. JC from Canada {{unsigned ip|172.69.33.194}}
: Funny, the version I'd heard from the woodworking community was SawStop getting vast pushback from their competitors who didn't want to licence the first saw safety systems, and then spent a vast amount of money making their own inferior systems when Sawstop pushed for tablesaws to have to have some sort of safety system. But I suppose it's all a matter of which set of propaganda from the businesses you're buying into. [[Special:Contributions/172.69.195.180|172.69.195.180]] 11:18, 25 March 2025 (UTC)
: The full story is a bit of both. The inventor didn't want to be a table saw company, so he initially tried to license it to existing companies, and only founded SawStop after getting rejected everywhere. Later, Bosch made a similar but distinct system and SawStop sued to keep it from reaching market. Finally, SawStop tried to get the US gov't to make skin-sensing tech mandatory on all table saws, and talked about how they are just trying to be safe, while simultaneously filing a lawsuit against Felder for their newer technology. A lot of people in the community viewed that as hypocritical as they seem to want safety, but only if they are the ones to profit from it. [[Special:Contributions/172.70.94.34|172.70.94.34]] 20:55, 26 March 2025 (UTC)

Funnily enough this could be practical in robot combat [[Special:Contributions/104.23.190.15|104.23.190.15]]15:01, 24 March 2025 EST

Note that since the blade is spun up using explosives and not the electric motor (even ignoring the title text), the saw being unplugged in no way makes the blade safe to touch. [[Special:Contributions/172.68.23.226|172.68.23.226]] 20:03, 24 March 2025 (UTC)

The explosive charge would already be deadly. --[[User:Bb777|[insert signature here]]] ([[User talk:Bb777|talk]]) 00:31, 25 March 2025 (UTC)

Why is it important to include the fact that this could be used in robot warfare? [[User:Ozymandias|Ozymandias]] ([[User talk:Ozymandias|talk]])
:As far as I can tell, this fact has not been included. Nor was it ever there in the last handful of edits (or in what I knew was there beforehand).
:There ''is'' something about Warhammer 40K (which I appreciate the meaning of, but find a little out of the blue as currently written). Maybe you mean that. It could be rewritten as a "in a circumstance such as the world of Warhammer 40K", I suppose. Though why single that out? For reference, though, in case you want to change things: https://warhammer40k.fandom.com/wiki/Chainsword [[Special:Contributions/172.69.43.240|172.69.43.240]] 11:45, 25 March 2025 (UTC)

242: The Difference

2025-03-10T21:21:50Z

172.70.90.109: Surely more understandable to just say that they're circular. (If there's any actual link with the other, mention that elsewhere..?)

{{comic
| number = 242
| date = March 30, 2007
| title = The Difference
| image = the_difference.png
| titletext = How could you choose avoiding a little pain over understanding a magic lightning machine?
}}

==Explanation==
[[Cueball]] pulls a lever. A bolt of lightning comes down and strikes him.

After being dazed for a moment, the comic then takes one of two routes; the first is that of a normal person, the second that of a scientist.

In [[Randall]]'s example, the normal person would decide not to pull the lever anymore, because it seems to cause him to get struck by a bolt of lightning.

But the scientist would pull the lever again to see if it was just a coincidence or if the lever actually caused the bolt of lightning. A scientist requires that results be repeatable before he accepts the results.

The title text refers to the scientist's method of pulling the lever again and again, trying to understand how the machine works, as opposed to the normal person, just avoiding pain. This could be a nod towards how scientists sometimes go to extreme measures for knowledge.

For a different view on the topic of repetition in experimentation, see [[1657: Insanity]].

==Transcript==
:[All the panels are circular.]

:[Cueball pulls a lever.]
:''Pull''

:[Lightning hits Cueball.]
:''ZAP''

:[Cueball still stands, obviously battered.]

:[An arrow labelled "normal person" points to a panel of Cueball thinking.]
:Cueball (thinking): I guess I shouldn't do that.

:[An arrow labelled "scientist" points to a panel of Cueball about to pull the level again.]
:Cueball (thinking): I wonder if that happens every time.

==Trivia==
This comic used to be [https://web.archive.org/web/20220125023401/https://store.xkcd.com/products/signed-prints available as a signed print] in the xkcd store before it was [[Store|shut down]].

{{comic discussion}}

[[Category:Comics featuring Cueball]]
[[Category:Comics with xkcd store products]]

3057: Excusing Yourself

2025-03-01T00:51:13Z

172.70.90.109: /* Explanation */ Splitting the long paragraph (hopefully, repeating the Efit Conflict I appear to need to check back on). Various additional. Shortening the link text. Removing an ACN that was fairly well cited.

{{comic
| number = 3057
| date = February 28, 2025
| title = Excusing Yourself
| image = excusing_yourself_2x.png
| imagesize = 740x334px
| noexpand = true
| titletext = The most awkward part is when you have to pause to put on your shoes before you continue rolling out the door.
}}

==Explanation==
{{incomplete|Created by a VERY POLITE BOT - Please continue to tidy up the explanation. Do NOT delete this tag too soon.}}

This comic revolves around different degrees of 'politeness' to leave a gathering, various scenes replicating the end of a social event, possibly a dinner party, but with different outcomes.

The first panel shows [[Megan]] sitting at a table with [[White Hat]] and [[Ponytail]]. She suddenly realizes how late she's 'kept them up', and how she needs to go somewhere early in the morning. Despite this and the fact that sleep is essential, she stays and offers to help tidy up the house before she leaves, possibly the most polite you can be in this situation, as it does not suggest the reason for leaving is related to the quality of the gathering and suggests she would stay longer if not for other obligations.

The second panel shows [[Cueball]] at the same gathering, who says that he must leave due to the fact that he is tired and must sleep. This is considered less polite, as he does not offer to help clean up the way Megan did, and indirectly implies the gathering is no longer entertaining enough to merit staying up; or just that he is ''too'' tired to fully comply with social niceties, in an understandable manner.

Even less polite is the trickster and classhole [[Black Hat]], in the third panel, and he excuses himself in typical Black Hat fashion, saying that instead of him alone being tired, he says that EVERYONE looks tired and bored. This is very impolite, especially in a social setting.

The final panel is as wide as three panels, and shows (as three points in time, depicting the unfolding action) [[Danish]] kicking the table, sending the chair tipping backwards and dumping her onto the floor. She then proceeds to roll away from the table, and presumably outside the house. This is rude on multiple levels: she does not give the hosts any chance to wish her goodbye, provides no excuse as to why she is leaving (as if it should be obvious), actively makes more mess by spilling the drinks on the table, and draws significant attention to herself all the while. Moreover, it is a health risk as she may sustain a concussion from such a fall pictured in the comic where the head directly impacts the floor, unless she has specifically practiced such manouevres.

The title text adds to the general awkwardness of having to excuse yourself, when Danish has presumably realized that she has forgot to put on her shoes, and has to stop rolling to put them on before continuing. This interaction is also unusual since in the United States (where Randall resides), hosts are unlikely to request their guests to remove shoes at a house party [https://www.cbsnews.com/news/most-americans-are-shoes-off-at-home/ despite a majority opting to not wear shoes in their own homes]. Therefore, there's a reasonable likelihood that Danish would have had her shoes on already, and would not encounter this issue.

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

:[Caption above the panel:]
:Ways to leave a social interaction:
:[An arrow pointing towards the right is shown below the caption. Caption above arrow:]
:Less polite

:[First Panel: From left to right, Ponytail, White Hat, and Megan are sitting at a table with half-full glasses on it. Megan is looking down at her phone.]
:Megan: Oh, gosh, I can't believe how late I've kept you up! I have to wake up early, so I should really go soon.
:Megan: Can I help tidy up?

:[Second Panel: White Hat and Cueball are sitting at a table (only the right half is shown, so Ponytail may be presumed to be in the left chair as in the first panel), on which there are half-full glasses and a plate.]
:Cueball: It's been great, but I'm tired and need to sleep.

:[Third Panel: White Hat and Black Hat are sitting at a table (again, Ponytail may be in the left chair), with two plates and a half-full wine glass at White Hat's spot. Black Hat's arm is resting on his chair.]
:Black Hat: We're about done having fun, right?
:Black Hat: Everyone looks bored.
:Black Hat: And tired.

:[Fourth Panel: Ponytail, White Hat are sitting at the table. Danish is shown in a sequence of actions (with her hair being only subtly longer than Megan's in the First Panel).]
:[Action 1: Danish kicks the table, spilling the drinks on it and causing her chair to topple backwards:]
:''Kick''
:Danish: Bye.
:[Action 2: Danish and her chair crash to the floor.]
:''Crash''
:[Action 3: Danish rolls away from the table. She is now upside down and crouched on the floor.]

{{comic discussion}}

[[Category:Comics featuring Ponytail]]
[[Category:Comics featuring White Hat]]
[[Category:Comics featuring Megan]]
[[Category:Comics featuring Cueball]]
[[Category:Comics featuring Black Hat]]
[[Category:Comics featuring Danish]]
[[Category:Social interactions]]

2014: JWST Delays

2024-12-13T06:23:50Z

172.70.90.109: Undo revision 359286 by 172.71.214.225 (talk) No, the comic doesn't mention that.

<noinclude>:''"2014", this comic's number, redirects here. For the comic named "2014", see [[1311: 2014]].''</noinclude>
{{comic
| number = 2014
| date = July 2, 2018
| title = JWST Delays
| image = jwst_delays.png
| titletext = Since delays should get less likely closer to the launch, most astronomers in 2018 believed the expansion of the schedule was slowing, but by early 2020 new measurements indicated that it was actually accelerating.
}}

==Explanation==

The {{w|James Webb Space Telescope}} (JWST) is a {{w|space telescope}} created to be the successor of the {{w|Hubble Space Telescope}}.

The telescope has been in development since 1996, but has been plagued by numerous delays and cost overruns. This comic was likely inspired by the most recent [https://nasa.gov/press-release/nasa-completes-webb-telescope-review-commits-to-launch-in-early-2021 delay announcement], which was posted on June 27, 2018. At that time, the JWST was scheduled to launch on March 30, 2021.

* In July 2020, this was pushed back further to October 31, 2021 due to the coronavirus pandemic.
* In June 2021, it was announced that the launch day will likely slip to at least mid-November 2021.
* On September 8, 2021, ESA announced that the official planned launch date is [https://www.esa.int/Science_Exploration/Space_Science/Webb/Targeted_launch_date_for_Webb_18_December_2021 December 18, 2021.]
* On November 22, 2021, NASA announced that the official planned launch date was delayed by four days to December 22, 2021, following a problem encountered when mating JWST to its payload adapter. This date was referenced in [[2550: Webb]].
* On December 15, 2021, NASA announced that the official planned launch date was delayed by two days to December 24, 2021, following a [https://www.space.com/james-webb-space-telescope-launch-delay-december-24 communications issue between JWST and the launch vehicle]
* On December 21, 2021, NASA announced that the official planned launch date was delayed by one day to December 25, 2021 due to [https://www.nasa.gov/feature/james-webb-space-telescope-launch-update adverse weather at the launch site]
* On December 25, 2021, the telescope was successfully launched, which Randall anticipated with this comic: [[2559: December 25th Launch]].

This comic portrays the launch delays and the new predicted launch years and the times at which those predictions were made. There have been so many delays in this project that you can plot a line of best fit with a surprisingly high degree of accuracy. Randall says optimistically that the line’s slope is less than one (there is less than one year of ''new'' delay per year of elapsed time), implying, of course, that if events continue without further intervention, it will eventually be built, with a predicted launch date of late 2026.

The title text alludes to the famous research over the {{w|Accelerating expansion of the universe|universe’s accelerating expansion}}. The expansion had been predicted to be slowing due to gravity from everything in the universe; instead, it was found to be accelerating since about 5 billion years ago. Here, Randall looks at the apparently ever-delaying schedule and observes that the delay per time does not decrease, although the date gets nearer (which should help to schedule the launch date, as research and unknown parameters are replaced with engineering and exact predictions and measurements). However, this delay inflation contradicts Randall's usage of a linear trendline. Given the {{w|COVID-19 pandemic}} brought some additional delays in 2020 and 2021, the "early 2020" date was perhaps unintentionally prescient.

The Wikipedia article linked above includes a {{w|James Webb Space Telescope#Cost and schedule issues|table}} which provides the data points for the chart:

{| class=wikitable
! width=35 | Year !! Planned launch !! Time left (years)
|-
| 1997 || 2007 || 10
|-
| 1998 || 2007 || 9
|-
| 1999 || 2007 to 2008 || 8-9
|-
| 2000 || 2009 || 9
|-
| 2002 || 2010 || 8
|-
| 2003 || 2011 || 8
|-
| 2005 || 2013 || 8
|-
| 2006 || 2014 || 8
|-
| 2008 || 2014 || 6
|-
| 2010 || 2015 to 2016 || 5-6
|-
| 2011 || 2018 || 7
|-
| 2013 || 2018 || 5
|-
| 2017 || 2019 || 2
|-
|2018 || 2020 || 2
|-
|2018 || 2021 || 3
|-
|2020 || 2021 || 1
|-
|2021 || 2021 || 0
|}

==Transcript==
:[Top caption, in the panel:]
:James Webb Space Telescope
:[Subtitle of top caption:]
:Launch Delays

:[There is a positive-quadrant only line graph. The x- axis is labeled 'Current Date' and the y axis is labeled 'Planned Launch Date'. The dates on both of the axes range from 1995 to 2030.]
:[In the graph are 15 points, starting at (1997,2007) and extending at a slope of a little less than one. The most recent one is labeled 'Now: 2021'.]
:[There are two lines on the graph: a red one and a dashed black one. The red one is a regression of the points on the graph. It has a slope of about ⅔. The black one is a line with a slope of one. They intersect at the point (2026,2026), marked by the label 'Late 2026?']

:[Caption below the panel:]
:Look, at least the slope is less than one.

{{comic discussion}}

[[Category:Comics with color]]
[[Category:Astronomy]]
[[Category:Telescopes]]
[[Category:Space probes]]
[[Category:Line graphs]]
[[Category:Extrapolation]]

3022: Making Tea

2024-12-10T06:54:33Z

172.70.90.109: /* Methods mentioned */ whoops

{{comic
| number = 3022
| date = December 9, 2024
| title = Making Tea
| image = making_tea_2x.png
| imagesize = 690x291px
| noexpand = true
| titletext = No, of course we don't microwave the mug WITH the teabag in it. We microwave the teabag separately.
}}

==Explanation==
{{incomplete|Microwaved by a TEA-MAKING AUTOMATON - Do NOT delete this tag too soon.}}
Tea is exceptionally popular in the United Kingdom, to the point virtually every home has an electric tea kettle as a standard appliance. In contrast, tea is less commonplace in the United States of America (Randall's native country) and owning a separate appliance solely for tea is generally not needed. As a result, when Americans need a cup of boiled water — for tea or otherwise — it's considered normal to put the water in a microwave oven.

British people are stereotyped as taking genuine offense to microwaved water, believing it to be an objectively incorrect way to make tea. Randall mocks this stereotype through exaggeration, saying British people would be less offended by the theft of the {{w|Crown Jewels of the United Kingdom}} than they would be by a cup of microwaved water.

===Methods mentioned===
;Making it in a kettle
:Perhaps an intentional misnomer. Water may be ''boiled'' in a kettle, but the tea itself is made in a separate {{w|teapot}}, with loose or bagged tea-leaves, ready for pouring into {{w|teacup}}s, {{w|mug}}s or {{w|vacuum flask|thermos flask}} as required.

;Boiling water in a pot, steeping in a mug
:The reverse misnomer, as the boiling water from the ''kettle'', as well as being used to fill any (tea)pot, can be poured straight into a mug. Either with a teabag already waiting in it (typical for "{{w|Builder's tea}}", where it may remain for a long while, ''perhaps'' until being fished out by a spoon just before drinking) or into which the teabag will now be dipped (at the personal discretion of the recipient, to taste, thus fine-tuning the time it infuses).

;Making it in a chalice and ampulla stolen from the Crown Jewels
:The most un-British thing about this is the stealing. Though many may have considered it, and occasionally {{w|Thomas Blood#Theft of the Crown Jewels|attempted it}}, it would not be taken kindly by many others. And to do so to make tea would be just {{wiktionary|not cricket}}. The stone challice and gold ampulla are also doubtful as being of suitable materials for British tea-making (as opposed to silver-plated steel, robust ceramics, etc) and there'd definitely be some complaints that it does not taste like a proper cuppa.

;Microwaving a mug
:Apparently common in the US, possibly because standard US home power supplies (~120V) is less suitable to power an electric kettle such as the British might use (with ~240V). The microwaving method of heating water is widely mistrusted in the UK, with warnings about generating superheated water that explodes in your face the moment it is disturbed. In general, one doesn't put 'just water' in a microwave; the closest analogue would be something like soup (from a can but now in a microwave-safe bowl), and keeping an eye on it/applying a loose lid to prevent it sputtering and overboiling.
:The title text continues with this theme, by reassuring us that the microwaved mug doesn't have a teabag in it (analogous to the 'boiling tea-kettle' version). Instead, it is separately microwaved. As tealeaves (and bag) should normally be dry and receive little to no heating from its own stint in the microwave, the wrongheadedness this invokes does little to dissuade the skeptic's doubts about how utterly perverse this colonial variation on tea-making has become.

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

[A chart is shown with four labeled tick marks. The first two are close together on the far left side of the graph, the third is approximately in the center, and the fourth is on the far right side of the graph. Above the chart are, from top to bottom, a heading, a subheading, and a labeled arrow pointing right.]

:<big>Ways of making tea</big>
:By how angry British people get when Americans do them

:More angry

:Making it in a kettle

:Boiling water in a pot, steeping in a mug

:Making it in a chalice and ampulla stolen from the Crown Jewels

:Microwaving a mug
{{comic discussion}}

explain xkcd:Community portal/Technical

2024-11-29T20:17:43Z

172.70.90.109: /* Esolang wiki bug */

<noinclude>__NEWSECTIONLINK__
{{Community links}}

{|-
|valign="top" width="100%"|[[File:Crystal Clear app package settings blue.png|left|120px]] <big><big>Technical</big></big>

Technical issues ''about'' the [[explain xkcd]] wiki, including bug reports or MediaWiki extensions requests. {{AddNewSection|Page=Explain XKCD:Community portal/Technical|Text=(+post)}}
|}
= Discussion Area =
</noinclude>

== We need more maintainers ==

:''I'm moving a thread that Davidy22 started on my talk page. The gist is, we need more people with server-side access (especially mediawiki-savvy ones) so we can properly deal with several issues that have been plaguing the wiki for a while now, most notably spam, but also the image scaling problem, a possible extension for proper comments, clean urls, etc. Below is the original thread, please comment.'' --[[User:Waldir|Waldir]] ([[User talk:Waldir|talk]]) 17:56, 25 November 2012 (UTC)

Could you set the permissions so that all anon users have to pass a captcha to edit? The spam has gotten obscene, and they've stopped posting links, so our current detection mechanisms aren't working anymore. [[User:Davidy22|Davidy22]][[User talk:Davidy22|<tt>(talk)</tt>]] 08:21, 25 November 2012 (UTC)

:I would love to have the ability to tweak the wiki more thoroughly, but currently Jeff's the only one with server access. To be honest, I am not terribly familiar with server-side mediawiki management, so I haven't asked Jeff for access, but it's clear we can't be dependent on a single person to do all the mediawiki config (and Jeff probably knows even less about mediawiki than I do). Are you by any chance acquainted with server-side mediawiki maintenance? I think we could present a good case for having someone else with access to a dev/prototype instance of this wiki on Jeff's server so we could at least experiment and tell him exactly what needs to be done. Thoughts? --[[User:Waldir|Waldir]] ([[User talk:Waldir|talk]]) 17:40, 25 November 2012 (UTC)

::I agree that we need more people that are empowered to actively fight spam. I think that we ought to promote Davidy22 to administrator also, so that he can delete pages and block spammers/vandals as he notices them rather than letting them pile up until yourself, IronyChef, or myself notice that there's work that needs done.

::What I think we should do is break out rights into more groups than simply administrator and bureaucrat. I think that's too big of a jump, and that there should be some gradiation. I think we should add a moderator (mark pages as patrolled and rollback ability (as much as it's a sledgehammer when you really only need a ball-peen hammer)) position.

::I think we also need a spam fighter position, but that might not be possible to implement. It should be a position that allows the person to delete pages with 1 or 2 edits (page creation, marked as spam, maybe as high as 3 or 4 for the bots that repeat edit certain pages) and block users with 1 or 2 edits. The real problem there is how to grant those super-powerful abilities without allowing them to lose their mind and go crazy and destroy the wiki. Of course, if we don't catch it early enough there's going to be those IPs that manage to get to six edits, and those will have to be squashed by a full admin. We will also need a way of tagging those spam accounts so when a full admin passes by they will also know to ban the IP address after a spam fighter has deleted all the pages it created.

::Finally, we also need a more active bureaucrat so that we don't have to bug Jeff to promote admin's as well as future moderators and/or spam fighters, and recognize bot accounts as bot accounts. We also should find someone knowledgeable to help Jeff (and maybe he has little helpers) to maintain the actual server. I've done some PHP work, but I've never touched anything deep inside a wiki (I like Ruby and Rails much more). This is my first time gaining admin status on a wiki, so I have no idea what the extra dials and levers do/mean. I look up on the MediaWiki manual and Wikipedia help pages things that I think should be possible, and often times pages exist in places about doing these things, but I'm nowhere near being called knowledgeable. After I finish up some IRL work I'm currently tied up in, I intend to set up a VM webserver on my computers and run a mediawiki install so I can learn how to work (and not break) things without putting explain xkcd in jeopardy.

::Another really wordy post from, [[User:Lcarsos|lcarsos]]_a ([[User talk:Lcarsos|talk]]) 22:01, 29 November 2012 (UTC)

::: From what I know, a moderator user group is possible, but not the spam fighter one. Then again, too many hierarchical levels may be too much for such a small body of regulars. Implementing the moderator group is easy, [[mw:Manual:User rights]] has the details (the "ninja" example and the "list of permissions" section should be enough for putting together the configuration commands to be added to the wiki's LocalSettings.php).
::: As for bureaucrats, I think it makes sense but it seems to me that Jeff only takes longer to perform changes that affect the server, as they understandably may take longer or be more complex (or break the wiki!). Bureaucrats' only difference from admins is that they can promote/demote other users, and this Jeff has been doing without delay, so perhaps there isn't a need for more bureaucrats at the moment. Please correct me if I'm wrong.
::: We do need more sysadmins (people with access to the server), though, for sure. This is a little tricky as none of us is comfortable enough to confidently make server changes in a mediawiki install. Jeff, how about putting the wiki in source control and giving two or three people access to it, so that any wrongdoings can be easily reverted? You could setup a git repository in the server and we could fork it locally to our machines, make tests and push the commits to the server repo whenever they're ready. --[[User:Waldir|Waldir]] ([[User talk:Waldir|talk]]) 17:20, 5 December 2012 (UTC)

:::: This is good stuff. I'm down with promoting more admins for spam fighting. If they screw stuff up we can demote them if necessary. I really haven't found a spam fighting extension that I think will be the best possible solution. I'll keep looking as it may be a combination of things. Server access is much more complicated as it is not even my server and it is shared hosting. I think that would be best to be accessed just by me. --[[User:Jeff|Jeff]] ([[User talk:Jeff|talk]]) 19:10, 19 December 2012 (UTC)

::::: Regarding the server, I understand -- your position seems reasonable. In any case, I've been looking for extensions that may help taking some workload out of server actions and make more stuff configurable via the wiki itself. I'll report back if I find something usable.
::::: On another note, how do you feel about promoting more bureaucrats? I suggest Lcarsos who's been consistently active for the past few months. --[[User:Waldir|Waldir]] ([[User talk:Waldir|talk]]) 12:47, 4 January 2013 (UTC)

Personally I'd kind of like to go and make some changes myself. Come up with a nice short url pattern and set it up. Upgrade the wiki. etc... [[User:Dantman|Dantman]] ([[User talk:Dantman|talk]]) 02:44, 23 March 2013 (UTC)
:The shorter URL is being looked into, although Mediawiki strongly advises against it. As for upgrades to the wiki, monetary donations towards Jeff so he can buy better bit for the server would be appreciated. '''[[User:Davidy22|{{Color|purple|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 03:06, 23 March 2013 (UTC)
::MediaWiki does not advise against it. Half the code currently running short URLs in core was written by me. Same for the new standard for rewrite rules in the new guides. And the tool to automatically generate the config needed to apply short urls to a wiki. Short URLs are '''not''' advised against.
::We do however strongly advise against installing a wiki in <code>/wiki</code>. Because you do '''not''' want to create <code>/wiki/$1</code> style paths while your script path makes scripts look like <code>/wiki/index.php</code>.
::In this case my plan would be to move <code>/wiki</code> to <code>/w</code> then come up with some other short url pattern like <code>/e/$1</code>, some other path, or maybe <code>/$1</code>.
::And setup some 301 redirects to redirect from the old urls to the new ones.
::And upgrading the version of MediaWiki so that it doesn't have security holes doesn't require server replacement. [[User:Dantman|Dantman]] ([[User talk:Dantman|talk]]) 07:09, 23 March 2013 (UTC)
:::Ohwait, software upgrades. Uh. I knew you were talking about that. Yep. Definitely. The wiki recently had issues with running out of hard drive space, so that was all that was on my mind there.
:::Also, I thought you had been referring to [http://www.mediawiki.org/wiki/Manual:Wiki_in_site_root_directory this]. Whoop. Well, you could leave Jeff a message at his [[user talk:Jeff|talk page]] to get server access. '''[[User:Davidy22|{{Color|purple|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 08:05, 23 March 2013 (UTC)
::::I strongly support this. It's been far too long since we decided we'd want the short url scheme (<code>/$1</code> seems like the best option since it would be simpler/cleaner and allow http://explainxkcd/1234 to point to the correct comic without any extra rewrite rules). While you're at it, I'm sure many would appreciate a look at the current situation with image resizing, which doesn't seem to be working for some reason. Installing [[mw:Extension:Comments|Extension:Comments]] would be awesome, too, as well as [[mw:Extension:Contribution Scores|Extension:Contribution Scores]] ([http://setiquest.org/wiki/index.php/Special:ContributionScores live example]). I'll ask Jeff to take a look at this thread. --[[User:Waldir|Waldir]] ([[User talk:Waldir|talk]]) 20:07, 23 March 2013 (UTC)
::::: [[User:Dantman|Dantman]] ([[User talk:Dantman|talk]]) email me and I'll get you set up with whatever you need. All the suggestions sound good to me. --[[User:Jeff|Jeff]] ([[User talk:Jeff|talk]]) 00:10, 24 March 2013 (UTC)
::::: Also, the [[Special:ContributionScores|Contribution Scores]] are up. I'm not even top 10 all time, I need to step up my game. Comments will take more work as it needs its own database. --[[User:Jeff|Jeff]] ([[User talk:Jeff|talk]]) 00:10, 24 March 2013 (UTC)
::::::Awesome! I did some styling changes to make it more interesting :) Let me know what you guys think about it! --[[User:Waldir|Waldir]] ([[User talk:Waldir|talk]]) 20:32, 24 March 2013 (UTC)
:::::::Holy crud, what did you do when the wiki started to have almost double my lifetime score? '''[[User:Davidy22|{{Color|purple|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 23:57, 24 March 2013 (UTC)
::::::::Hahahah :P I'm pretty sure I cheated a little, IIRC there was an image renaming operation for which I used [http://github.com/btongminh/mwclient mwclient] ;) --[[User:Waldir|Waldir]] ([[User talk:Waldir|talk]]) 03:22, 25 March 2013 (UTC)

== Sort by numbers in categories ==

I noticed that in [[:Category:Comics]] all comics are sorted correctly by numbers; but not in any subcategory. (I didn't really get the explanation of how it works on the comics page.) How to fix this? -- [[User:St.nerol|St.nerol]] ([[User talk:St.nerol|talk]]) 10:40, 22 December 2012 (UTC)

:<nowiki>The comics template uses a template called num4 that turns the number in the comic number field into a four-digit number. That's then passed as a parameter to the category link, and the comics category page sorts articles by those four-digit numbers instead of their actual names. If we wanted to do the same for other categories, we would have to type them all out as [[Category:Politics|0200]], or whatever the comic number is. I would rather wait for mediawiki to come out with an in-built feature to solve this.</nowiki> [[User:Davidy22|Davidy22]][[User talk:Davidy22|<tt>[talk]</tt>]] 11:28, 22 December 2012 (UTC)

::Is there a reason that the template applies that directly to [[:Category:Comics]] and not as a default sortkey via DEFAULTSORT? – ''[[User:Philosopher|Philosopher]]'' [[User talk:Philosopher|Let us reason together.]] 12:10, 1 January 2013 (UTC)

::: Good thinking. Using DEFAULTSORT oughta make it work for all categories. I'll give it a try. --[[User:Waldir|Waldir]] ([[User talk:Waldir|talk]]) 15:37, 1 January 2013 (UTC)

== Resize ==

I haven't been here (to edit) for a while, but have we still not addressed the bug that doesn't allow image resizing? I know most of us don't have access to that kind of lower-level coding on the site, but I think it's a bit of a notable issue that we can't display comics smaller than their actual size. [[User:TheHYPO|TheHYPO]] ([[User talk:TheHYPO|talk]]) 14:24, 21 January 2013 (UTC)

:Take it up with [[User:Jeff]], but I suspect that adding your voice to the already insistent roaring that images are broken isn't going to inspire much change. [[User:Lcarsos|lcarsos]]_a ([[User talk:Lcarsos|talk]]) 18:08, 23 January 2013 (UTC)

== Incidental Ads ==

as ive noticed i think you should check if someone has embeded some of your links with ads really annoying please fix

--[[User:TheWeatherMan|TheWeatherMan]] ([[User talk:TheWeatherMan|talk]]) 14:00, 23 January 2013 (UTC)TheWeatherMan

:Do you have any specific examples of this? By the way, using punctuation, capitalization, spell check, and complete sentences are more likely to get someone to help you. [[User:Lcarsos|lcarsos]]_a ([[User talk:Lcarsos|talk]]) 18:10, 23 January 2013 (UTC)

::There is known malware (both adware and viruses) that makes Wikipedia look like it has ads. This wiki uses the same wiki software, so perhaps that malware affects our site too? – ''[[User:Philosopher|Philosopher]]'' [[User talk:Philosopher|Let us reason together.]] 05:42, 15 February 2013 (UTC)

==/wiki/==
Now that explainxkcd redirects straight to the wiki, could we take the /wiki/ out of the url? I'd also like the wiki's edit log to be purged to clean out the history and forget about past spam, but that's probably wishing for too much. '''[[User:Davidy22|Davidy22]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 04:06, 28 January 2013 (UTC)

:But seriously, could the /wiki/ go? It'll screw with the spammers for a day or two, at the very least. '''[[User:Davidy22|Davidy22]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 11:37, 30 January 2013 (UTC)

==Newbie questions: Comic dates, previous-and-next-comic buttons==
Just created the my first page, [[220: Philosophy]], but I could use a little guidance. How do I find the date that an ''xkcd'' comic was originally posted, and how do I rig up the previous-comic and next-comic arrows on a page? (Actually, I've noticed several pages that should have the arrows but don't.) [[User:Ekedolphin|Ekedolphin]] ([[User talk:Ekedolphin|talk]]) 11:19, 28 January 2013 (UTC)
:Those arrows will automagically insert themselves when you make the adjacent comic explanations. There *is* a little backstage magic that needs to be taken care of, but we can do that for you. '''[[User:Davidy22|Davidy22]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 11:40, 28 January 2013 (UTC)
** OK. How about the dates? [[User:Ekedolphin|Ekedolphin]] ([[User talk:Ekedolphin|talk]]) 11:41, 28 January 2013 (UTC)
:::Click on "All Comics" in the navbar on left-hand side of the site. The dates are in the form YYYY-MM-DD. '''[[User:Davidy22|Davidy22]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 11:56, 28 January 2013 (UTC)

:The comic template checks for the existence of the numerical redirect for the comic before and the comic after. If it finds the page to exist it will display the next/previous button as appropriate. So, by creating the redirects listed on the [[List of all comics]] (third column, only worry about the number and title links) future pages will automatically get the links created. Redirect pages look like <code><nowiki>#REDIRECT [[####: Comic Title]]</nowiki></code> and that's it ([http://www.explainxkcd.com/wiki/index.php?title=1143&redirect=no here] is a link to the redirect page with redirect disabled so you can look at the source to see what I'm talking about). That's all that needs to exist on the number and title redirects. If you feel up to creating them yourself, feel free, otherwise someone else goes through occasionally and mass adds all the missing redirects. [[User:Lcarsos|lcarsos]]_a ([[User talk:Lcarsos|talk]]) 17:55, 29 January 2013 (UTC)

== Error message ==

I've been getting this error message a lot the last cup'o days. When trying to access a page; when trying to save changes on a page. Any ideas on why? I'm getting it on both chrome and firefox.
::Database error
::A database query syntax error has occurred. This may indicate a bug in the software. The last attempted database query was:
::(SQL query hidden) from within function "Revision::insertOn". Database returned error "1142: INSERT command denied to user ::'dbo423085716'@'74.208.16.155' for :table 'text' (db423085716.db.1and1.com)".
–[[User:St.nerol|St.nerol]] ([[User talk:St.nerol|talk]]) 22:54, 18 March 2013 (UTC)

:Every once in a while I get a SQL error being reported, but usually I can simply F5 and the page comes up. Every once in a while it seems like the server load is just so that somebody gets lucky enough to see the server error out. I don't think there's much we can do about this, other than move the wiki onto a more powerful server. But, there are no ads on this site, there is no revenue model, just a very kind person paying for hosting that keeps this site up. I'm more than willing to overlook a few hiccups for the continuing availability of explain xkcd. [[User:Lcarsos|lcarsos]]_a ([[User talk:Lcarsos|talk]]) 07:12, 23 March 2013 (UTC)

::Yeah, I get those too, but St. Nerol was talking about something that happened recently with the server running out of hard drive space and throwing SQL errors every time someone tried to make large edits. I had to find Jeff on twitter because I'd get SQL errors when I tried to edit his talk page. He's looking into history deletion plugins, to clear out our vast archives of deleted spam and obsoleted prototype comic templates. '''[[User:Davidy22|{{Color|purple|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 08:10, 23 March 2013 (UTC)

== Install a caching reverse proxy to handle heavy load ==

According to returned headers, this server runs from Apache directly. I would recommend setting up a reverse caching proxy in front of Apache to handle high traffic load (like, e.g. current load). The one I use is nginx (http://nginx.org/) -- admins, drop me an email if you need help setting it up [[User:Fry-kun|Fry-kun]] ([[User talk:Fry-kun|talk]]) 21:38, 26 March 2013 (UTC)

:The standard software to use is either Squid or Varnish. Nginx is a bit too much of a webserver to be configured in the way MW needs iirc. Although nginx would help with serving the static assets. Unfortunately there will be a need to switch to a proper server first. The site seems to be hosted on shared hosting. [[User:Dantman|Dantman]] ([[User talk:Dantman|talk]]) 04:59, 27 March 2013 (UTC)

::I had gotten burned before with both Squid and Varnish but Nginx had always kept my systems alive. It's extremely lightweight and works great to fix these kinds of problems. But, of course if it's a shared server where you can't use it, it won't help... [[User:Fry-kun|Fry-kun]] ([[User talk:Fry-kun|talk]]) 16:35, 27 March 2013 (UTC)

:::Nginx is a great webserver. It'll serve out static pages much better than Apache. But the issue here isn't the webserver. It's PHP and all the work that the database needs to do on every request. Switching webservers won't get rid of that issue. Using squid/varnish a proper reverse proxying cache will allow complete pages to be cached and served directly to readers bypassing the webserver, php, and the database entirely on some requests. That'll reduce the load the site has to cope with. [[User:Dantman|Dantman]] ([[User talk:Dantman|talk]]) 23:47, 27 March 2013 (UTC)

== A couple of enwiki features implemented ==

I have "imported" {{tl|disambig}} and the related [[:Category:Disambiguation pages|category]] for the [[Exoplanets‎‎|one page]] it was needed for (to avoid having a page that was uncategorised :-) ).

I have also created {{tl|unsigned ip}} (and converted the one use of {{tl|unsigned}}) and applied it for a handful of existing uses of {{tl|unsigned}}. It hardly matters, but then it's also only three more characters to type for new uses.

Importantly, however, I implore you to consider including the second datestamp parameter when applying either template -- it's actually the more useful information. I know it's a pain to convert times ''back'' to UTC, but, hey, most of you don't have to deal with a half hour timezone :-) [[User:Markhurd|Mark Hurd]] ([[User talk:Markhurd|talk]]) 16:19, 13 April 2013 (UTC)

:Urrggh, there's an option to make UTC the default display time. The template oughta be a little more automated, mebbe filling the time in automagically with five tildes if no date field is entered? The time will be a bit off when editors fill in the unsigned templates, but it'll be close enough to the actual value. '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 23:59, 13 April 2013 (UTC)

::No, especially while there's existing templates to adjust, where the "default" datestamp would be way out. If someone wants to fix a lot of the existing usage, setting their timezone to UTC is the simplest option. [[User:Markhurd|Mark Hurd]] ([[User talk:Markhurd|talk]]) 09:14, 14 April 2013 (UTC)

== I've removed "add a comment!" from Discussion heading ==

:''This thread has been moved to [[explain xkcd:Community portal/Proposals#I've removed "add a comment!" from Discussion heading|The proposals board]].''

== Need password reset ==

Sorry to bother you all, but I seem to have lost the password to this account and don't have an email set (which requires the password). I'm still logged in thanks to the "remember me" feature but after 30 days I'll lose access. This isn't fixable at the MediaWiki level; someone with access to the server mysql or whatever will need to change something. Is there such a person I can email with? [[User:Splainr|Splainr]] ([[User talk:Splainr|talk]]) 03:05, 15 April 2013 (UTC)
:I assume your browser isn't remembering it for you? [[User:Markhurd|Mark Hurd]] ([[User talk:Markhurd|talk]]) 03:08, 15 April 2013 (UTC)
::Oh wow that was fast. Nope, neither Firefox not OSX keychain access know what it is. [[User:Splainr|Splainr]] ([[User talk:Splainr|talk]]) 15:18, 15 April 2013 (UTC)
: I'm not sure how to solve that problem, but I know account usurpation has been done for the single-login transition in Wikimedia wikis, so technically it should be doable. --[[User:Waldir|Waldir]] ([[User talk:Waldir|talk]]) 23:04, 16 April 2013 (UTC)

See [[mw:Manual:Resetting passwords]]. --[[User:Mormegil|Mormegil]] ([[User talk:Mormegil|talk]]) 11:59, 15 May 2013 (UTC)

== Analytics ==

Recently I found out about WikiApiary, an interesting site that collects analytics from mediawiki wikis. I added explain xkcd. Check the stats that have been collected so far: http://wikiapiary.com/wiki/explain_xkcd --[[User:Waldir|Waldir]] ([[User talk:Waldir|talk]]) 00:03, 17 April 2013 (UTC)

== "External" hotlinking enabled to confirm issue with other car.jpg ==

FYI I have [http://www.explainxkcd.com/wiki/index.php?title=MediaWiki:External_image_whitelist&oldid=34582 enabled] "external" hotlinking to this wiki's own images to show [[:File:other car.jpg]] can display correctly. See further notes about that issue [[File talk:other car.jpg|here]]. [[User:Markhurd|Mark Hurd]] ([[User talk:Markhurd|talk]]) 14:32, 21 April 2013 (UTC)

:If the problem is lack of thumbnail generation, it should display correctly even without hotlinking, simply by using the original size, e.g.
:[[File:other car.jpg]]
:I'm not sure why it doesn't. In any case, this image hotlinking thing reminded me, would it be a good idea to use the images hosted at XKCD.com and only upload variants to the wiki (e.g. those at [[:Category:Helper comic images]]) and images Randall for some reason deleted from the server (e.g. images with typos)? This would reduce the load on the explainxkcd server and provide a better experience for viewers since xkcd is already optimized for high loads and actually openly provides the image urls for hotlinking. --[[User:Waldir|Waldir]] ([[User talk:Waldir|talk]]) 15:01, 21 April 2013 (UTC)

Seeing as [[User:Daddy]]'s upload has fixed the wiki always attempting to display the thumbnail version (which still don't work), I have disabled the "hotlinking" again.

[[User:Markhurd|Mark Hurd]] ([[User talk:Markhurd|talk]]) 11:32, 22 April 2013 (UTC)

== Redirect from explainxkcd.com/1234 ==

It would be really cool if <code>http://www.explainxkcd.com/<number></code> redirected to the explain page for that number. That would allow people to get to the correct explanation by simply adding <code>explain</code> to the comic url.

If you are willing to do this, all you would need to do (assuming you run apache with mod_rewrite enabled) is put the following in <code>.htaccess</code> in your web root:

<code><pre>
RewriteEngine on
RewriteRule ^(\d+)/?$ /wiki/index.php?title=$1 [R,L]
</pre></code>

-[[User:Sionide21|Sionide21]] ([[User talk:Sionide21|talk]]) 22:28, 7 June 2013 (UTC)

::Yeah! I'm waiting for this. But admins seems to be rare here.--[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 22:44, 7 June 2013 (UTC)
::And it seems we both could help...--[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 22:47, 7 June 2013 (UTC)
:::There are several admins here (in fact, I am, too), but what you are looking for is the sysop, the one with access to the server. Admins can delete/protect/undelete pages and block users etc. [[User:Jeff|Jeff]] is the only one that can change MediaWiki configuration or url rewriting... --[[User:SlashMe|SlashMe]] ([[User talk:SlashMe|talk]]) 17:08, 8 June 2013 (UTC)
::::Thanks for your information, so I will try to talk to [[User:Jeff|Jeff]]. BTW: Can you edit the main page? I still miss a link to the incomplete comics on the top.--[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 17:52, 8 June 2013 (UTC)
::::: At the top of the main page, there is a section that says ''"We have collaboratively explained 1189 xkcd comics, and only 33 (3%) remain. Add yours while there's a chance!"''. The word ''remain'' is already linked to the list. --[[User:SlashMe|SlashMe]] ([[User talk:SlashMe|talk]]) 19:16, 8 June 2013 (UTC)
::::::I was talking about the 97% comics. There are still many incomplete pages and we have a category here on that.--[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 19:36, 8 June 2013 (UTC)
:::::::Ah, I see. Just did it; everyone: feel free to change the sentence, I'm not a native speaker. --[[User:SlashMe|SlashMe]] ([[User talk:SlashMe|talk]]) 21:07, 8 June 2013 (UTC)
::::::::THANKS! I'm also not native English, I'm German. But this wiki is a great challenge to get more practice, even much more as if talking to common English natives.--[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 21:27, 8 June 2013 (UTC)
::::::::: This is something I want to do, so I'm putting this on my page, so I remember to add it to the .htaccess. I'm not super familiar with the .htaccess rules, can I have this along with the other rules I have in my htaccess file? --[[User:Jeff|Jeff]] ([[User talk:Jeff|talk]]) 15:17, 22 October 2013 (UTC)
:::::::::: Yes, that rule will work alongside other rules --[[User:Sionide21|Sionide21]] ([[User talk:Sionide21|talk]]) 19:28, 27 October 2013 (UTC)
::::::::::: I've fixed this on our new host. (I actually had the rule in there already, I just had it in the wrong order.) I'd love to promote this feature a bunch. Any ideas how? --[[User:Jeff|Jeff]] ([[User talk:Jeff|talk]]) 02:33, 30 October 2013 (UTC)
:::::::::::: A sitenotice oughta do it. '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 03:43, 30 October 2013 (UTC)
:::::::::::: Woohoo, finally!!! Now if we could just have [[#We need more maintainers|clean URLs]] too, that'd be swell! ;) --[[User:Waldir|Waldir]] ([[User talk:Waldir|talk]]) 05:02, 14 November 2013 (UTC)

== Incomplete – motivation ==

Is it possible to fix (or is there already) a way to add a motivation with the "incomplete"-tag? I tried <nowiki>{{incomplete|the title text needs explaining}}</nowiki>, which made "edit it" in the banner link to the uncreated page "the title text..."... ––[[User:St.nerol|St.nerol]] ([[User talk:St.nerol|talk]]) 12:16, 10 June 2013 (UTC)

:You can use the <nowiki>{{notice|Your text...}}</nowiki> template:
{{notice|Here is my notice.}}
:--[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 17:30, 10 June 2013 (UTC)
::Thanks! I think that ideally most incomplete-notices shold carry a note on what's missing, but we aren't there, so this'll do for now. ––[[User:St.nerol|St.nerol]] ([[User talk:St.nerol|talk]]) 10:21, 11 June 2013 (UTC)

== Unable to Edit ==

I cannot edit this latest comic's page. When I hit edit a screen appears which says "This page has been protected to prevent editing." I've never edited before, but I'm annoyed by the improper use of the word candid. "It would be candid and unrealistic" would be better off in that sentence if candid was removed. How do I make it so I can edit the page, so I can remove this affront to the English language?
:I believe you are trying to edit the main page. You can click "Latest comic" in the left sidebar or the "Go to this comic" button in the top right corner of the grey box to go to the actual page for today's comic. '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 16:42, 1 July 2013 (UTC)
::That was the problem, thanks.--[[User:Holcma01|Holcma01]] ([[User talk:Holcma01|talk]]) 17:07, 1 July 2013 (UTC)

== Banner ad placement ==

On iPad and iPhone browsers, the banner ads obscure the top of the page. This covers up some of the useful buttons up there, like LOGIN for example. The workaround is to refresh the page. Because the banner ad is the last thing to load, you have a brief window of maybe three seconds to find and click the link you need. [[User:Gardnertoo|Gardnertoo]] ([[User talk:Gardnertoo|talk]]) 20:24, 26 July 2013 (UTC)
: Fixed. --[[User:Jeff|Jeff]] ([[User talk:Jeff|talk]]) 21:12, 25 October 2013 (UTC)

== Bookmarklet for jumping to explainxkcd.com from xkcd.com ==

I wrote a short {{w|bookmarklet}} for jumping from xkcd.com to explainxkcd.com. Bookmarklet form:
<pre>
javascript:var%20match%20%3D%20window.location.href.match(%2F%5Cd%2B%2F)%3B%0Avar%20suffix%20%3D%20match%20%3F%20%27%3Ftitle%3D%27%20%2B%20match%5B0%5D%20%3A%20%27%27%3B%0Awindow.location%20%3D%27http%3A%2F%2Fwww.explainxkcd.com%2Fwiki%2Findex.php%27%20%2B%20suffix%3B
</pre>

Decoded:
<pre>
javascript:var match = window.location.href.match(/\d+/);
var suffix = match ? '?title=' + match[0] : '';
window.location ='http://www.explainxkcd.com/wiki/index.php' + suffix;
</pre>

If you're on a numbered xkcd page, it will go to the accompanying explainxkcd.com page automatically. If you're on the xkcd.com home page, it goes to the explainxkcd.com wiki home page. [[User:Mattflaschen|Mattflaschen]] ([[User talk:Mattflaschen|talk]]) 17:30, 19 August 2013 (UTC)

To add this bookmarklet to your browser:

# Copy the bookmarklet javascript (*not* the decoded version)
# Using your browsers bookmark manager, create a new bookmark
# Give the bookmark a meaningful name -- e.g. ExplainXKCD
# Paste the javascript in for the bookmark URL
# Save.
({{unsigned|Tomh}})

:Thanks Mattflaschen and Tomh! I've started collecting these helpful tools on a [[Browser helpers|new page]], to hopefully make them easier for others to find. – [[User:Yfmcpxpj|Yfmcpxpj]] ([[User talk:Yfmcpxpj|talk]]) 01:33, 29 September 2020 (UTC)

== Database Error ==

I have NO IDEA where this should go, but
http://www.explainxkcd.com/wiki/index.php?title=1011
has the content

Database error
A database query syntax error has occurred. This may indicate a bug in the software. The last attempted database query was:
(SQL query hidden)
from within function "SqlBagOStuff::set". Database returned error "1142: INSERT command denied to user 'dbo423085716'@'74.208.16.155' for table 'objectcache' (db423085716.db.1and1.com)".

Just thought I should report it.

OOPS forgot sig. [[Special:Contributions/67.175.58.94|67.175.58.94]] 00:13, 23 September 2013 (UTC)

Edit: This has been fixed randomly. Never mind then. :X

== [[mw:Extension:SyntaxHighlighter]] ==

Could we maybe enable this? It would be helpful for some of the programming-heavy comics' explanations, e.g. [[1270|today's one]].[[User:PinkAmpersand|PinkAmpersand]] ([[User talk:PinkAmpersand|talk]]) 17:02, 27 September 2013 (UTC)
: Done, PinkAmpersand. --[[User:Jeff|Jeff]] ([[User talk:Jeff|talk]]) 19:57, 28 September 2013 (UTC)

== It's not taking me to the main page ==

If I type explainxkcd.com, it redirects me to http://www.explainxkcd.com/wiki which just shows a directory listing, rather than taking me to the main page (as I assume it's supposed to). [[User:Chridd|chridd]] ([[User talk:Chridd|talk]]) 02:07, 31 October 2013 (UTC)
:Thaat's not supposed to happen. I'm on it. '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 06:49, 31 October 2013 (UTC)
:Is it fixed for you now? '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 06:55, 31 October 2013 (UTC)
::Yes [[User:Chridd|chridd]] ([[User talk:Chridd|talk]]) 14:46, 31 October 2013 (UTC)

== Logo in upper left corner missing ==

The logo in the upper left corner is missing, probably because of a wrong redirect. The logo should be at http://www.explainxkcd.com/wiki/skins/common/images/explainxkcd.png, but this link takes me to the main page. The icons in the edit toolbar are missing, too, probably the same problem. You should exclude all \.png$ queries from redirects. --[[Special:Contributions/108.162.254.177|108.162.254.177]] 10:09, 31 October 2013 (UTC)
: Fixed that. Sorry about that, it was an overzealous htaccess. Thanks! --[[User:Jeff|Jeff]] ([[User talk:Jeff|talk]]) 15:45, 31 October 2013 (UTC)

== Sidebar ad overhangs content in Firefox 25.0 ==

The sidebar ad on each page overhangs the content frame slightly when I view this site in Firefox 25.0 on a Windows 7 Home Premium 64bit pc. I have started Firefox in safe mode with all add-ons disabled and it still happens. Site looks fine in IE 11. {{unsigned ip|173.245.56.79}}
:Have you tried hitting control-shift-R, or clearing your cache? That sounds like Firefox is disregarding part of our CSS for whatever reason. I'm running a very similar setup and I'm not getting these problems. Try giving it a wee bit of time and trying again. '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 17:27, 13 November 2013 (UTC)

:What's your monitor resolution and size of your Firefox window (maximized, 50/50 split, etc)? [[User:Lcarsos|lcarsos]]_a ([[User talk:Lcarsos|talk]]) 18:24, 13 November 2013 (UTC)
::I'm really sure that scaling isn't the issue, I made the sidebar width definite. I'll check it again. '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 19:06, 13 November 2013 (UTC)
:::The sidebar has a fixed width defined at the CSS style sheet. Press F5 or CTRL-R to reload this style sheet. This happened to me in the past too. --[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 19:14, 13 November 2013 (UTC)
::::I changed the defined width to pixels instead of em, in the annoying edge-case that a browser uses a weird default font width. '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 19:24, 13 November 2013 (UTC)
:::::It looks fine now.--[[Special:Contributions/173.245.56.79|173.245.56.79]] 06:08, 18 November 2013 (UTC)
::::::Sidebar ad overhangs content in DuckDuckGo 7.67.1.2 for iOS 15.4.1, on iPhone 12. aka 'Your sidebar ad has been crushed into a cube. You have fifteen minutes to move your cube.'

== Connection problems ==

Whatever the new hoster does cost, you should get your money back. Sometimes the page doesn't load at all, or the menu is missing after the browser did finish after one or two minutes. The performance here is still annoying. That cloud seems to be a dead cloud. --[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 23:33, 11 January 2014 (UTC)
:It's easily more performant than our old service, and it holds up far better to traffic. I am inclined to say that it's a region specific issue, and I'll submit a ticket for that, but they've worked far better than flat shared hosting for the time that we've been using them. '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 00:01, 12 January 2014 (UTC)
::More detail: The message is an Error 522 (Connection timed out).
::*You (Browser, Working) <-> Amsterdam (CloudFlare, Working) <-> <nowiki>www.explainxkcd.com</nowiki> (Host, '''Error''')
::In December the CloudFlare did belong to Frankfurt. --[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 20:35, 12 January 2014 (UTC)
:::I'm having still major problems to connect, only this this silly error message. ...and then it does work again. Still strange.--[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 22:58, 14 January 2014 (UTC)
:Today I've been getting a ''lot'' of these errors with Cloudflare. (London-based CloudFlare, in my case.) "Error 522 Ray ID: 2587581d8b8a350c • 2015-12-21 23:25:22 UTC" is just one of the IDs. Not sure if you'd prefer another bit of the page info, instead, but the Ray ID looked unique enough to pinpoint debug info in the background.) The suggestion is made that the web server is too busy at something or other. Anyway, just so you're aware.
:I had a look here, first, to see if anyone had mentioned anything (and found the above), so apologies if I'm not posting in the best bit of the best page. [[Special:Contributions/162.158.152.227|162.158.152.227]] 23:44, 21 December 2015 (UTC)
::It seems to be an occasional regional issue that cloudflare has with us. When I go to our server directly our site is still up, so something between us and cloudflare is failing. Not sure what though. '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 03:40, 22 December 2015 (UTC)
:Yesterday (and day before?) Cloudflare London insisted that the server was not responding. Not sure if that was an actual explain-server issue (not seen mention of it anywhere else, in a brief dig), only Cloudflare London being refused by the server (detecting and blanket filtering rogue traffic via my gateway) or some other issue. Meant to check for update timestamps on the latest comic article that coincided with my being unable to visit the site at the time. But FYI, assuming the cause isn't already sorted out with no further actions needed and/or possible... [[Special:Contributions/162.158.155.92|162.158.155.92]] 16:02, 11 February 2020 (UTC)

== Wrong IP address shown ==

All [http://www.explainxkcd.com/wiki/index.php?title=Special:RecentChanges&hideliu=1 edits by IPs] (well, at least all I checked, including my own edits) are recorded using IP addresses of CloudFlare ([http://www.utrace.de/whois/108.162.238.220 108.162.192.0/18], [http://www.utrace.de/whois/173.245.50.88 173.245.48.0/20] and some other ranges), i.e., it's not the address of the client, but of the server. This seems similar to [https://bugzilla.wikimedia.org/show_bug.cgi?id=56681]. --[[Special:Contributions/108.162.254.160|108.162.254.160]] 09:05, 29 January 2014 (UTC)
:That's something we're working on, but current limitations with our provider are making things sow for us. When they give us what we need, we can do it. '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 16:59, 29 January 2014 (UTC)
::Hmmpf! I just noticed this twelve months later and it's still the case... [[User:Markhurd|Mark Hurd]] ([[User talk:Markhurd|talk]]) 01:59, 29 January 2015 (UTC)
:::Uurrrp a couple of holdups happened, I need to do this at some point. '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 04:54, 29 January 2015 (UTC)

::: I just noticed it as well [[Special:Contributions/162.158.252.197|162.158.252.197]] 04:20, 24 October 2015 (UTC)

: CloudFlare is already providing the Real Ip address -- there are mods for Apache https://support.cloudflare.com/hc/en-us/articles/203656534-How-can-I-set-up-Apache-mod-CloudFlare- and Nginx https://support.cloudflare.com/hc/en-us/articles/200170706-How-do-I-restore-original-visitor-IP-with-Nginx- or you can just pull it from the X-Forwarded-For HTTP header which proxy servers (like CloudFlare) typically puts the client IP address. [[Special:Contributions/162.158.252.197|162.158.252.197]] 04:25, 24 October 2015 (UTC)

== 1337 leads to...? ===

Current and latest comic page, 1337, unusually has a "Next" before there's even any 1338 page. (It points to 1337.) As a lowly IP, I don't feel I ought to delve too deep to see if it's a page template issue (possibly because "1337" is both a past title ''and'' the current number, maybe, although not too sure if that'd work out) or just because of manual editing. But bringing it to general attention. (It may of course be an issue that does not even last beyond Wednesday, and comic number 1338's arrival, even without intervention.) [[Special:Contributions/141.101.99.7|141.101.99.7]] 13:40, 3 March 2014 (UTC)
:D'aww, and I wanted to be lazy too. I'll get to fixing it, an IP took it to himself to add stuff to the comic template and he removed the auto-hiding buttons. Imma fixy. '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 17:42, 3 March 2014 (UTC)
::I did revert some edits on that issue here, so for the first point it should work again. In general: The main page should not be affected like this and the test environment is called: Sandbox. --[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 20:43, 3 March 2014 (UTC)
:::The issue was fixed three hours before your autorevert. This is getting excessive. The next time you autorevert a large edit without testing or making an attempt to fix things yourself, expect a three-day ban. '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 22:41, 3 March 2014 (UTC)

== No confirmation email? ==

I requested an email for confirmation when I registered. I got nothing, not in spam filter, not in trash, and definitely in not my inbox.

Today, I requested another confirmation email. Again, nothing has appeared.

Is it me? Is it my shampoo??? Enquiring minds want to know....
Thanks. [[User:Karenb|Karenb]] ([[User talk:Karenb|talk]]) 22:45, 20 March 2014 (UTC)
:Confirmation emails? What, are we a five-star hotel now?
:Jokes aside, is this a thing you really need? You should be autoconfirmed after editing for a while without getting blocked, but if you can put forward a good reason why we should add this in, I'll do it. '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 00:54, 21 March 2014 (UTC)
:::Not blocked! Trying to authenticate my email, which I thought was an automatic process. Does that feature not work? That would certainly explain the lack of autoresponse.... Cheers. KB [[User:Karenb|Karenb]] ([[User talk:Karenb|talk]]) 01:35, 21 March 2014 (UTC)

I'm having the same issue. I've requested several confirmation emails over the past few days. I have also tried changing and then resetting my email address. Nothing has worked so far, and it's not in any of my filtered inboxes. I can edit most pages. Will this fix itself even if I don't get an email? [[User:DownGoer|DownGoer]] ([[User talk:DownGoer|talk]]) 18:16, 26 June 2023 (UTC)

==Because the people visiting here are probably the people that should see this==
After the server upgrades mentioned in the sitenotice, de.explainxkcd.com should exist. I'm not publicizing it yet, just want to get it up and work out implementation details before it goes fully live. Pls dun test during the downtime, there'll be plenty of time for that after it's live. '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 01:14, 21 March 2014 (UTC)
:Ok, so our server doesn't actually have the required dependencies to complete the upgrade, so that was slightly fruitless. Sorry about any downtime or inconvenience caused, I didn't add the German wiki again because I'm looking set up the parallel wikis on an up-to-date base. Sorry again for any inconvenience that may have caused, I'll make sure to be better prepared next time, and maybe actually succeed in performing the upgrade next time. '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 02:02, 24 March 2014 (UTC)

==Does anyone have image of Black Hat saying to Cueball "It's 'cause you're dumb" ?==
Guys, does anyone has this image?
I'm hosting Russian xkcd fanpage here - vk.com/xkcdoff and if someone would post it it would be very helpful. --[[User:KOTYAR|KOTYAR]] ([[User talk:KOTYAR|talk]]) 22:40, 24 March 2014 (UTC)
:I actually can't find it either. Shame, I liked that old thumbnail. I could probably photoshop up a new version if you really want one though. '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 04:53, 26 March 2014 (UTC)
:
::[[File:explain xkcd blog header image.png|right]] Just going to the [[explain xkcd]] page and following [http://wayback.archive.org/web/20091026122109/http://www.explainxkcd.com/2009/07/03/extrapolating/ the first historic (internet-archived) link] allowed me to extract [http://wayback.archive.org/web/20110202213753im_/http://www.explainxkcd.com/wp-content/themes/lightword/images/header-image.png the requested "header-image.png"] (the [http://www.explainxkcd.com/wp-content/themes/lightword/images/header-image.png corresponding image URL on the current site] gives nothing anymore... thank you, Internet Archive!). Which I uploaded to the wiki here, for convenience and because it's part of this wiki's history, in a way, and also, cool. [[File:Face-smile.svg|20px|Smile|link=]] - [[User:Cos|Cos]] ([[User talk:Cos|talk]]) 10:39, 16 April 2014 (UTC) (PS: also, [http://www.facebook.com/explainxkcd/photos/10150144122985214 facebook.com/explainxkcd/photos/10150144122985214]; but JPEG.)

== expxkcd.com redirect not up-to-date ==

By adding "exp" at the beginning of the URL one can easily switch from [http://xkcd.com/1234 xkcd.com/1234] to [http://expxkcd.com/1234 expxkcd.com/1234], which redirects to the corresponding explanation here, and that's nice. But right now, [http://expxkcd.com expxkcd.com] redirects to [[1355]] (at least for me), instead of [[1356]], the latest comic. Wouldn't it be better if expxkcd.com redirected to the [[Main Page]] instead (as does correctly [http://explainxkcd.com explainxkcd.com])? - [[User:Cos|Cos]] ([[User talk:Cos|talk]]) 10:55, 16 April 2014 (UTC)
:expxkcd is actually a thing that user [[user:grep]] was so kind to purchase and handle for us. I can forward this on to him for him to resolve, and give him the rewrite rules we use if he needs them. '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 11:12, 16 April 2014 (UTC)
:
::Nice, thank you for the quick forward to the right place. - [[User:Cos|Cos]] ([[User talk:Cos|talk]]) 11:31, 16 April 2014 (UTC)
:Yeah, the reason for that is that right now, I update it manually, which is obviously a really bad idea. I plan to change this pretty soon. I don't want it to go to the main page because the main page doesn't show the discussion, and comes along with all the other, regular main page stuff. Any rewrite rules wouldn't hurt, Davidy22. {{User:Grep/signature|12:04, 16 April 2014}}
::Hrm. Ours rules point towards the main page. We have no automatically updating page that always redirects to the latest comic, but you can use Mediawiki hooks to append the contents of the page [[Template:LATESTCOMIC]] to the end of our URL. '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 23:44, 17 April 2014 (UTC)
:::Sorry, I don't understand. My BOT will upload the next comic on time, unless it's some new chaos by Randall a BOT just can't handle. The LATESTCOMIC template is updated and so it seems only be an issue on that damn Cloud Service Cache. Even Randall's pages are affected. At "What-if" I still have to use <CTRL+R> to get the latest content. --[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 00:26, 18 April 2014 (UTC)
::::We're talking about a different thing related to shortened URLs. '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 02:24, 18 April 2014 (UTC)
:::That is an interesting idea, however I just made a script that automatically adds 1 every Monday, Wednesday, and Friday. I could have it grab the number from your page and do this once a day at something like 00:10 EST (because Randall sometimes does things on other days), that's a possibility as well (other times / intervals may also be done if you wish/want). {{User:Grep/signature|04:34, 02 May 2014}}
::::Our LATESTCOMIC page and Randall's xkcd json page should both have up-to-date comic numbers for you to pull. Ours is probably the better one to pull since your site is linking to us. '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 06:30, 2 May 2014 (UTC)
:::::The script now checks Template:LATESTCOMIC every 30 minutes to see if the comic has changed or not. If you wish, I might be able narrow this down to 11PM->6AM (for 30 minute checking) and then have it check every two hours at other times or something similar to that (if [http://www.freedesktop.org/software/systemd/man/systemd.time.html systemd.time] has a way to do it) {{User:Grep/signature|12:13, 09 May 2014}}
::::::I still do not see that problems. Please touch this wiki as less as needed, this is still the best choice. But there is still a big problem on the cache, an update on a picture lasts many hours. Some statements in "LocalSettings.php" should work, if not this wiki version is buggy. Problems should be solved at the cause and not be overridden by some additional scripts. --[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 21:51, 9 May 2014 (UTC)
:::::::We have ample bandwidth for a bot that only checks once every half-hour. The image caching issue is irrelevant to the current topic. '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 03:45, 10 May 2014 (UTC)

== Explain xkcd upgraded to version 1.19.17 ==

Woo! '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 17:59, 26 July 2014 (UTC)

The header seems to have broken, there is no longer a link to the explanation in it. [[Special:Contributions/173.245.56.154|173.245.56.154]] 22:00, 26 July 2014 (UTC)
:Which header are you talking about? All the links I can think of still seem to work. '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 02:13, 27 July 2014 (UTC)
:: It fixed itself shortly after I mentioned it. It was the incomplete explanation, the link to 428 was bold, but not a link. [[Special:Contributions/173.245.56.154|173.245.56.154]] 04:48, 27 July 2014 (UTC)

One of the ads is broken.

[[File:brokenexplainxkcdad.png]]

[[User:MrGameZone|0100011101100001011011010110010101011010011011110110111001100101]] ([[User talk:MrGameZone|talk page]]) 04:33, 27 July 2014 (UTC)

:Ooh, thanks for catching that. Should be fixed now. '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 17:08, 27 July 2014 (UTC)

Nice :) But is this update a preparation for an upcoming update to {{w|MediaWiki version history|one of the latest versions}}, or are we limited to 1.19 for some reason? I'm asking because 1.19 is only supported for {{w|mw:Version lifecycle#Version timeline|a few more months}}, and also because with newer versions we'd have access to some niceties -- for example, after version 1.20 the {{w|mw:Help:Magic words#Statistics|PAGESINCAT}} magic word accepts parameters, which would allow the count of explained comics in the main page to work using less hardcoded hacks. --[[User:Waldir|Waldir]] ([[User talk:Waldir|talk]]) 16:08, 27 July 2014 (UTC)

:Prior attempts to update the wiki have been prevented by the realization that Lunarpages doesn't give us quite as much control over our server share as we thought we had. Checking again, they seem to have upgraded the version of PHP on our server since we last attempted and failed to run one dumb update script, which should mean that it'll work next time we try it. The wiki also has quite a bit of user effort invested into it now, and I'm a little less ready to jump into .0~.3 releases than I would normally be on my own machine, so I upgraded down the LTS path that I knew would be safe. After the first ill-planned attempt, I've been eyeing the 1.23 LTS line for the next major jump, but I'm certainly not stepping into it while it's still relatively fresh. '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 17:08, 27 July 2014 (UTC)

:: Sounds reasonable. Thanks for the details. I'll be looking forward to the next update :) --[[User:Waldir|Waldir]] ([[User talk:Waldir|talk]]) 18:52, 28 July 2014 (UTC)
::Just wanting to offer, I use ARP Networks for hosting, you should check them out if you want more control. {{unsigned ip|173.245.56.154}}
:::Hum, there's an option. I'll keep that in mind. '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 04:35, 29 July 2014 (UTC)
::::It wasn't me that posted that comment. But surprisingly enough anon and I have the same first two bytes in our IP addresses. Congrats on the version upgrade. [[User:Lcarsos|lcarsos]]_a ([[User talk:Lcarsos|talk]]) 05:31, 29 July 2014 (UTC)

Why does the site say I'm blocking ads when I'm not? I do use AdBlock Plus, but it's turned off for this site. Screenshot [http://i1271.photobucket.com/albums/jj637/backagain2012/contra_zps3c6aa295.png here]. And while I'm here, that "unblock us" text has an error- the first "and" in the second sentence shouldn't be there. [[User:NealCruco|NealCruco]] ([[User talk:NealCruco|talk]]) 01:51, 29 July 2014 (UTC)
:The text only appears when the ads fail to load. The error message actually says noscript, which means that the Javascript that the ad box uses to fetch images isn't running. How long has this been happening for you? '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 04:35, 29 July 2014 (UTC)
::It just started. I came over here as soon as I noticed it. [[User:NealCruco|NealCruco]] ([[User talk:NealCruco|talk]]) 19:07, 29 July 2014 (UTC)
:::Have you recently made any changes to your browser? Does the problem persist when you hit CTRL+SHIFT+R? '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 12:43, 30 July 2014 (UTC)
::::Nope, no recent changes. And yes, the problem persists when I hit Ctrl+Shift+R. [[User:NealCruco|NealCruco]] ([[User talk:NealCruco|talk]]) 14:04, 30 July 2014 (UTC)
:::::I am genuinely puzzled. The message tells me that something is causing your browser to fail to load/run the Javascript that makes the ad render and report stats, so the problem could be anything that can cause that: noscript, outdated browser, experimentation. I don't know anything about your setup, and it works on my test machines, so I can't tell currently what's wrong. '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 03:10, 1 August 2014 (UTC)
:Do you have privoxy installed on your machine? (this is a long shot) [[User:Lcarsos|lcarsos]]_a ([[User talk:Lcarsos|talk]]) 00:24, 3 August 2014 (UTC)

== If anything broke, complain here. ==

There's a banner that says:
The wiki has been updated to stable mediawiki version 1.19.17. If anything broke, complain here.

So...

The following have broken:
Cars
My previous computer
A railroad train
Condoms
Etc.

None of which has anything to do with this website.

The banner should be made more specific before Randall sees it and does a comic mocking it.

Or not. {{unsigned ip|173.245.48.80}}
:Well, there's always that one guy. Fixed. '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 05:05, 28 July 2014 (UTC)
::I don't see how you could have fixed that one guy. Throttled, eliminated, insulted, blocked, etc. But not fixed. [[User:Walenc|Walenc]] ([[User talk:Walenc|talk]]) 16:29, 28 July 2014 (UTC)
:::See sense 6 here: http://en.wiktionary.org/wiki/fix#Verb :P [[Special:Contributions/173.245.56.154|173.245.56.154]] 02:13, 29 July 2014 (UTC)
::::i bet you think yer so clever. just watch me take the site down. '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 04:35, 29 July 2014 (UTC)

== Misc Request... (|< < Prev Comic Next > >| format) ==

I usually browse in a very small window and the menu buttons split kind of strangely (http://i.imgur.com/wPE7szZ.png). Would it be possible to replace the spaces with nonbreaking spaces? --[[Special:Contributions/173.245.56.202|173.245.56.202]] 15:13, 1 August 2014 (UTC)
:Annoyingly, the spaces that are giving you trouble can't be changed because they're text string inputs, and Mediawiki has no regular expression markup yet. Every other instance of formatting-critical spaces has been changed to non-breaking spaces though, thanks for the heads up! '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 18:13, 2 August 2014 (UTC)
:: I think I fixed this by adding a space between the buttons. Unfortunately, this only works as long as the comic is not as wide as the button bar. I guess this is because of the surrounding table. --[[User:SlashMe|SlashMe]] ([[User talk:SlashMe|talk]]) 20:15, 2 August 2014 (UTC)

== Not receiving password reset emails ==

I've forgotten my password, and password reset is not working for me. I went to [[Special:PasswordReset]], and had it send me a reset email. However, I have not received the email. I am sure that I have an email associated with my account, and it's confirmed. [[Special:Contributions/173.245.54.174|173.245.54.174]] 08:38, 18 August 2014 (UTC)
:Tested, password reset emails seem to work for me. Have you checked your spam folder? '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 18:04, 24 August 2014 (UTC)
::I checked in Gmail in "Mail & Spam & Trash", and it still doesn't find it. I tried a fresh reset, so we'll see if that comes through. No luck after a minute or two. [[Special:Contributions/108.162.216.71|108.162.216.71]] 04:59, 28 August 2014 (UTC)

==TOR Captcha==

Hi, I use TOR. To access your website, cloudfare has made it such that I have to enter a captcha. This is very inconvenient, as your site is not the only one doing this. Can you please fix this issue? You should be able to see a guide here: https://tor.stackexchange.com/questions/599/cloudflares-captcha-screen-insurmountable . Thank you for taking the time to consider this. [[Special:Contributions/141.101.104.60|141.101.104.60]] 11:34, 13 September 2014 (UTC)
:Is it better now? '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 13:06, 13 September 2014 (UTC)
::Sorry, no. I still get the captcha. What did you try doing? [[Special:Contributions/108.162.216.87|108.162.216.87]] 22:09, 13 September 2014 (UTC)
:::Set the threat level threshold way up. Any further steps into cheap botnet territory. For your security, you may want to reconsider the nodes through which you're operating through. Also, why do you need to use Tor to visit us? '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 04:17, 14 September 2014 (UTC)
::::Ah, okay, thanks, now I'm not getting the captcha. As for why I'm using Tor, I don't ''need'' to, but I'd rather do so just to be anonymous. I wouldn't have written if it were just your site, but since Cloudfare has made captchas the default setting for Tor, the internet is starting to become near unusable. So that everyday people aren't scared away from using Tor due to the perceived complexity of daily browsing, whenever I have to enter a captcha, I try to contact someone at the site to ask them to change the setting. [[Special:Contributions/108.162.216.82|108.162.216.82]] 06:52, 14 September 2014 (UTC)

== Upgrade to the latest MediaWiki version? ==

I think we should start trying to maintain a regular upgrade schedule of some sort. 6 months ago was the last time we've upgraded, and I think we should upgrade again. The impetus for this change would be for [https://www.mediawiki.org/wiki/Extension:Translate translation] [https://www.mediawiki.org/wiki/Extension:TranslationNotifications features], [https://www.mediawiki.org/wiki/Extension:Babel plus other multilinguality efforts that require the new versions of MediaWiki.] Localization efforts should be put into place, and the translate feature would work well for that. [[User:Chess|Chess]] ([[User talk:Chess|talk]]) 01:53, 12 November 2014 (UTC)
:Plans to upgrade only include LTS releases. That said though, the recent and unintentional server downtime was actually the result of a setup for a coming mediawiki upgrade, among other things. The plan is to upgrade to 1.23 sometime in the coming months, during the weekend after a satisfactory number of bugfix releases. We're very interested in setting up translations, although mediawiki in it's current form already supports translation; the extensions you linked are mostly quality-of-life additions. It's been delayed because the plan is to eliminate all incomplete comics first so that translators have a solid base to work from. '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 02:42, 12 November 2014 (UTC)
::Can I just be nitpicky and say that we last upgraded about 3.5 months ago, not 6? Thanks. [[User:NealCruco|NealCruco]] ([[User talk:NealCruco|talk]]) 03:17, 12 November 2014 (UTC)

== Fix HTTPS access ==

explain xkcd is using Cloudflare which recently enabled HTTPS for all users, but when [https://explainxkcd.com accessing it via HTTPS] it returns [https://support.cloudflare.com/hc/en-us/articles/200171916-Error-521 error 521].
In order to fix this in addiction to the solution steps proposed by CloudFlare check if SSL settings are correct. {{unsigned ip|173.245.52.138}}
:On it '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 18:51, 13 November 2014 (UTC)

HTTPS is working now, there just some mixed-content warnings, mostly on style tags which being active mixed content are blocked, but it's still a good improvement as it's possible to have more privacy when browsing explain xkcd.{{unsigned ip|188.114.99.35}}

: Whoever has server access, can they try changing $wgServer ([[mediawikiwiki:Manual:$wgServer|Manual:$wgServer]]) to use a protocol relative url? As the manual page says, you may also want to set $wgCanonicalServer to a fully-qualified url (hopefully defaulting to https). [[User:Behrat|Behrat]] ([[User talk:Behrat|talk]]) 04:17, 29 October 2015 (UTC)
::Done. How's it now? '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 08:42, 31 October 2015 (UTC)
::: Much better! The styles and scripts are loaded now, and the page looks good. It's still not completely green https because it's loading some images over plain http, but my browser at least appears to be allowing them for now. If you want any more suggestions on technical issues, let me know. I currently maintain my own mediawiki installation with full https, cloudflare, and short urls. [[User:Behrat|Behrat]] ([[User talk:Behrat|talk]]) 20:27, 4 November 2015 (UTC)
::::Huh. Is it the ad images? The comic pictures *should* be also done over https, no? '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 07:10, 5 November 2015 (UTC)
::::: Yeah, one of them is the ad images (http://www.explainxkcd.com/wiki/lunarpages_160x600.jpg). Most of them are from [[MediaWiki:Common.css]], so you could just change all the urls on that css page to protocol-relative. The only other one I see is http://i.creativecommons.org/l/by-sa/3.0/88x31.png, which I think is set at [[mediawikiwiki:Manual:$wgFooterIcons|$wgFooterIcons]], but I'm not sure. All of them appear to be accessible over https, so just changing the links should work. [[User:Behrat|Behrat]] ([[User talk:Behrat|talk]]) 01:13, 6 November 2015 (UTC)

If I replace xkcd with explainxkcd I get a very ugly CSS-less page in Chrome on Win7. If I change the https to http, the page works [[Special:Contributions/141.101.105.12|141.101.105.12]] 06:07, 3 September 2015 (UTC)
:Can you provide more information about your setup? Test a different browser? Unable to reproduce. '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 11:56, 3 September 2015 (UTC)
:: I can reproduce in Firefox. This is due to the mixed content blocker. Usually, it should only block active content (scripts) and maybe warn about passive content (stylesheets), but at least in Firefox, it is configurable to block both. But I cannot see why the stylesheets shouldn't be served via HTTPS.
:: Currently, the styles are referenced absolutely ([http://www.explainxkcd.com/wiki/load.php?debug=false&lang=de&modules=site&only=styles&skin=vector&* http://www.explainxkcd.com/wiki/...]), but they should rather by referenced domain-relative (<code>/wiki/...</code>) or at least protocol-relative (<code>[//www.explainxkcd.com/wiki/load.php?debug=false&lang=de&modules=site&only=styles&skin=vector&* //www.explainxkcd.com/wiki/...]</code>). --[[User:SlashMe|SlashMe]] ([[User talk:SlashMe|talk]]) 16:29, 3 September 2015 (UTC)

== RSS feed issue ==

When attempting to access the feed for this wiki I'm told "Sorry. No feed found." Is there some way that the feed can be restored to the satisfaction of Feedly? Could it be due to some [http://validator.w3.org/feed/check.cgi?url=http%3A%2F%2Fexplainxkcd.com%2Frss.xml validation issues], or should I consider changing my news reader? [[User:Pmw57|Pmw57]] ([[User talk:Pmw57|talk]]) 23:08, 7 January 2015 (UTC)
:Huh. The feed updates automatically with a script that I wrote a while ago, I'm very sure it passed more than this the last time I checked. Fixed a few things, left the one about the date because that's a pain to fix, and one that I can't figure out for the life of me. I think I fixed the line that was causing the actual problems though. Should update on feedly now. '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 01:52, 8 January 2015 (UTC)
::Hallelujah - the feed was mixed in with other geeky material and it only took me nearly 8 months to notice that nothing was coming through from here anymore. I'm premature with my thanks though. The [http://explainxkcd.com/rss.xml RSS link] in the navigation pane to the left still doesn't want to be understood by Feedly. By contrast, other feeds such as for latest changes can be picked up. [[User:Pmw57|Pmw57]] ([[User talk:Pmw57|talk]]) 02:04, 8 January 2015 (UTC)
:::Hrm. Sent an email to feedly about it, Just tested and I'm having similar issues with feedly. '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 02:17, 8 January 2015 (UTC)
::::It seems it's not just Feedly. When I use Chrome's [https://chrome.google.com/webstore/detail/rss-feed-reader/pnjaodmkngahhkoihejjehlcdlnohgmp/related?hl=en RSS Feed Reader], that too also tells me "No posts here yet" followed by the an ever helpful "Chirp, chirp, chirp, chirp" [[User:Pmw57|Pmw57]] ([[User talk:Pmw57|talk]]) 02:33, 8 January 2015 (UTC)
::::Could it be that it's just not valid XML? I see that it ends at line 236 with </item> with no other closing tags, for example. [[User:Pmw57|Pmw57]] ([[User talk:Pmw57|talk]]) 03:18, 8 January 2015 (UTC)
:::::Ohwait a minute, the auto updater rips old entries off the bottom and that's where there's supposed to be a closing channel and RSS tag. well. '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 07:19, 8 January 2015 (UTC)
It's good to know that the cause is now known - I'll let you (or someone else with the authority) get on with fixing things up :-) [[User:Pmw57|Pmw57]] ([[User talk:Pmw57|talk]]) 07:46, 8 January 2015 (UTC)
:[http://feedly.com/i/subscription/feed/http://www.explainxkcd.com/rss.xml Hullo.] It's not perfect that only one specific formation of the URL works, but it's a start. '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 08:01, 8 January 2015 (UTC)
:: You sir do God's work - and that coming from a Dillahunty-following Atheist is saying something. [[User:Pmw57|Pmw57]] ([[User talk:Pmw57|talk]]) 08:11, 8 January 2015 (UTC)
My reader has been refusing to process the feed for the last few days. I finally un-busied enough to poke into why. When I looked at the source at [http://www.explainxkcd.com/rss.xml /rss.xml] I saw:
<pre>
</item>

<item>
<title>1561: Water Phase Diagram</title>
<link>http://www.explainxkcd.com/1561</link>
<pubDate>Thu, 06 Aug 2015 21:51:11 -0700</pubDate>
<guid isPermaLink="true">http://www.explainxkcd.com/1561</guid>
<description><![CDATA[<h2>1561: Water Phase Diagram</h2><a href="http://www.explainxkcd.com/1561">http://www.explainxkcd.com/1561</a>]]></description>
</item>
</pre>
I'm thinking that the script is broken. I could pro'ly come up with something workable, given the access. --[[User:Ericm301|Ericm301]] ([[User talk:Ericm301|talk]]) 16:50, 9 August 2015 (UTC)
:What on earth is happening here I don't even know. The script seems fine, I repaired the RSS file again manually. See if it malfunctions again today. '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 01:22, 10 August 2015 (UTC)
::Script is behaving very strangely. Today's update warped the feed file in a weird way, this doesn't usually happen. I'll test it on my machine to see what's happening. '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 13:56, 10 August 2015 (UTC)
It was fine for a minute (that must have been your edit), but now it's broke again. --[[User:Ericm301|Ericm301]] ([[User talk:Ericm301|talk]]) 19:53, 10 August 2015 (UTC)
:Alright, I figured out what was going on with the feed. There was a bit of code I had in the update script that trimmed off the last entry of the RSS file and when I recreated an empty file for the feed after the inexplicable wipe, I forgot to turn it off so it was still shaving off the end of the file. This time it should be working. '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 07:34, 12 August 2015 (UTC)

== "Known appearances" character infobox fix? ==

Currently, "Known appearances" in the characters infobox is broken as for some pages, when the character's category serves as it's own info page. (e.g. [[:Category:Red Spiders]], [[:Category:Sharks]], [[:Category:Squirrels]], [[:Category:Barrel]] etc.) Can this be fixed?--[[User:17jiangz1|17jiangz1]] ([[User talk:17jiangz1|talk]]) 11:21, 29 March 2015 (UTC)

:Fixed it myself. Just use template "Infobox character 2" instead of "Infobox character" when the character's category serves as it's own info page.--[[User:17jiangz1|17jiangz1]] ([[User talk:17jiangz1|talk]]) 14:55, 31 March 2015 (UTC)

== Comic 1505 (30 March 2015) isn't properly showing up, I think? ==

Excuse me if I'm being a n00b, but [[1505]] is posted, and the page is extant, but it's not showing on the [[Main Page]] yet. Is this supposed to happen, i.e. waiting for someone to put some content on the page, or did something break somewhere...? Again, sorry if I've just committed a massive derp. [[Special:Contributions/173.245.56.189|173.245.56.189]] 04:38, 30 March 2015 (UTC)
:Should be showing up now. '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 09:38, 30 March 2015 (UTC)

== rendering problem ? ==

To me, right now, with Windows Firefox 37.0.1, [[625: Collections]] looks like this:

[[File:communityportal_technical_1504_collections.png]]

There doesn't seem to be anything wrong with the source text.

Here's the [[Main Page]] in Internet Explorer 8:

[[File:communityportal_technical_1504_mainpage.png]]

This is affecting everything? Or just me? [[User:Pesthouse|Pesthouse]] ([[User talk:Pesthouse|talk]]) 03:31, 6 April 2015 (UTC)

Okay, [[Special:Contributions/173.245.50.140|somebody]] was messing with [[Template:w]]. I reverted it to the previous editor's version, seemed to fix things. [[User:Pesthouse|Pesthouse]] ([[User talk:Pesthouse|talk]]) 03:46, 6 April 2015 (UTC)
:On that note, they made a similar template that links to rationalwiki, but didn't use it at all in any pages. Huh. It's not even a very significant site. '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 05:52, 6 April 2015 (UTC)

::The IP [http://www.explainxkcd.com/wiki/index.php?title=301:_Limerick&oldid=84906&diff=88577 preferred the Rationalwiki article] on Poe's Law to the Wikipedia version, I guess.
::[[User:452]] did not approve. [[User:Pesthouse|Pesthouse]] ([[User talk:Pesthouse|talk]]) 07:57, 6 April 2015 (UTC)
:::Given the fact that he broke Template:W, and [[Special:Contributions/173.245.50.140|didn't seem to know what he was doing]], I undid his other edits, sorry if this was inappropriate. -[[User:452|452]] ([[User talk:452|talk]]) 17:51, 15 April 2015 (UTC)

== Main Page ==

When categories are added to the latest comic, the Main Page is also categorized in those categories.--[[User:17jiangz1|17jiangz1]] ([[User talk:17jiangz1|talk]]) 13:42, 15 April 2015 (UTC)
:The most obvious solution would be to put the categories inside <nowiki><noinclude></nowiki> tags, on every page. {{unsigned|143}}
::That's ugly and labor-intensive though. I think there's something we can do with string matching to fix it in a better way. '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 03:35, 16 April 2015 (UTC)

== #cscore doesn't work with #expr ==

I can't use cscore with expr on my userpage.--{{User:17jiangz1/signature|10:30, 01 May 2015}}

== 1545 page severely broken? ==

The very tail end of the raw page source (using Internet Explorer) is
"wgRedirectedFrom":"1545"});
}</script><script>
...and then stops, obviously unfulfilled. (I also snipped everything up until that unique-looking Redirection data, for brevity.)

Compare that with the equivalent snippet from an adjacent page:
"wgRedirectedFrom":"1544"});
}</script><script>if(window.mw){
...and then continues with a working rest of the page. (Also snipped, but this time both before ''and'' after. I've kept it short while imagining I've given enough to ID the precise breakpoint though.)

Same problem encountered when using "Next" link from 1544 or "Previous" link from 1546. Page http://www.explainxkcd.com/wiki/index.php/List_of_all_comics ''itself'' suffers the exact same error. (Last wgVariable listed in LoaC page is ''"wgSearchNamespaces":[0]'', instead, but still similarly ends after apparently the same close-script and open-script flagging point.)

Does ''not'' go wrong in Mozilla-based browsers also on this machine (Firefox, Seamonkey). Page sources for 1545 look exactly like the above 1544 snippet, as expected, with no obvious funny characters or 'Little Bobby Tables' anomalies, SFAICT. In case it's a spurious downloading error that has ended up being cached, I've also "shift-refreshed" in my browser to force download.

Utterly Baffling me, but FYI in case it's something someone needs to know about, although I'm hoping it's just local strangeness and not anything actually of significance.[[Special:Contributions/141.101.98.252|141.101.98.252]] 04:33, 5 July 2015 (UTC)
:Opened in Internet Explorer 11, it seems to appear for me. Are any site features being impacted by this bug? '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 15:44, 5 July 2015 (UTC)
::Nothing I was previously familiar enough with to spot an adverse effect. Note that http://www.explainxkcd.com/wiki/index.php/1545:_Strengths_and_Weaknesses - the link I tried to get from the LoaC page (but only just now tried in non-IE!) works perfectly. Even while the "/1545" (i.e. 'RedirectedFrom') version of the page ''continues'' to be truncated. I can only assume that (despite attempts to force things anew), it's buggily-cached iteration.
::Hang on, that gives me an idea. Which works. I changed the 1545 page (change labelled as "Troubleshooting" in history) and... it opens perfectly. Removed change (should probably have self-reverted, in hindesight, but suspect it'd be fixed anyway) and no further issue. "List of all Comics" page still as broken (because I haven't forced it to update, and am not inclined to 'interfere' with it), but I shall check again after 1547 forces its own changes upon it. Otherwise, consider this closed. Sorry to bother you.
::TL;DR; problem solved. Pretty much proven to be not even a site issue, I now think. [[Special:Contributions/141.101.98.252|141.101.98.252]] 21:38, 5 July 2015 (UTC)
::Ok, FYI, once 1547 'Solar System Questions' ''finally'' appeared, I check "List of all comics" page. First of all a lot of "Waiting for page..." (uh oh), but then force-refreshed page (in the way that didn't work previously) and it loaded correctly. C'est finis. [[Special:Contributions/141.101.98.252|141.101.98.252]] 15:02, 6 July 2015 (UTC)

== [[881]] loads as "database error" ==

With this content:
Database error
A database query syntax error has occurred. This may indicate a bug in the software. The last attempted database query was:
(SQL query hidden)
from within function "SqlBagOStuff::set". Database returned error "1114: The table 'objectcache' is full (db423085716.db.1and1.com)".

No other page gives me this error, just [[881]].--[[Special:Contributions/162.158.92.6|162.158.92.6]] 19:42, 2 August 2015 (UTC)

I just got this on 564 [[Special:Contributions/141.101.98.200|141.101.98.200]] 22:44, 2 August 2015 (UTC)

== Database error ==

I can't see [[:Category:Interactive_comics]] (<tt>1114: The table 'objectcache' is full (db423085716.db.1and1.com)</tt>). [[Special:Contributions/199.27.128.105|199.27.128.105]] 00:18, 3 August 2015 (UTC)

== RSS missing ==

Hey it looks like there's an issue with the rss feed, when you browse to the url on the right it just displays an empty page, not sure what's going on. [[User:Eluvatar|Eluvatar]] ([[User talk:Eluvatar|talk]]) 14:19, 3 August 2015 (UTC)
:Huh, in the last few hours the rss file was inexplicably wiped. I've restored the base of it, the bot should start populating the feed with new comics, but old ones are gone. '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 16:49, 3 August 2015 (UTC)

== Extra Comics ==

In extra comics, the header of the comic has "Expression error: Unrecognised punctuation character "{"." such as in [[The Rise of Open Access]]. {{User:17jiangz1/signature|13:32, 13 September 2015}}
:{{done}} - It was because [[0]] was created, so the logic that #ifexist:0 should be false failed. I changed it to default to -2 when number is not present, which will work as long as no one creates [[-1]]! [[User:Markhurd|Mark Hurd]] ([[User talk:Markhurd|talk]]) 11:15, 14 September 2015 (UTC)

== Explanations for all -4 comics! ==

The main page header now contains this text:

[http://i.imgur.com/p7VACbW.png We have an explanation for all -4 xkcd comics, and only 23 (1%) are incomplete. Help us finish them!]

I'm assuming this is a bug. {{unsigned|Okofish|01:00, 15 September 2015}}

: {{done}} It was a temporary artifact due to recent categorization changes. It's now fixed. Thanks for the quick report :) --[[User:Waldir|Waldir]] ([[User talk:Waldir|talk]]) 01:14, 15 September 2015 (UTC)

== Discussion pane missing on comic 1592? ==

After checking the Discussion tab to make sure there ''was'' a Discussion, I thought that someone had removed the <nowiki>{{comic discussion}}</nowiki> tag, and went into full-page edit to put it back. But it's there. Maybe it's just me, maybe it's just temporary, but FYI in case it isn't. [[Special:Contributions/141.101.75.185|141.101.75.185]] 15:06, 19 October 2015 (UTC)
:Fixed. --[[User:SlashMe|SlashMe]] ([[User talk:SlashMe|talk]]) 16:21, 19 October 2015 (UTC)

== Captcha ==

Captcha not appearing at all. Can't edit pages without turning off security settings (which were set to default). Chrome and "Edge" on Windows 10. Both yell at me about some components of the page being insecure. 15:48, 18 February 2016 (UTC)

:Same issue with other browsers. reCAPTCHA won't load from an "insecure" resource when the wiki is accessed over HTTPS. [[User:TisTheAlmondTavern|TisTheAlmondTavern]] 15:07, 6 December 2016 (UTC)
::Oooh, I see. Alright, I'll get to fixing it now I know what the problem is. '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 01:00, 7 December 2016 (UTC)
Slight bug in the editing panel, when asked what webcomic we're talking about, it cannot be in all caps, it must be strict lowercase, despite appearances on xkcd.com. Could someone take a look at it? [[Special:Contributions/108.162.249.158|108.162.249.158]] 00:54, 5 November 2015 (UTC)
:It took me several months to figure out that "this wiki" is named "explain xkcd" and not "explainxkcd". I spent those months answering two questions every time the "what's this wiki's name" question appeared (when I missed the answer, a different question appeared).--[[User:Jojonete|Jojonete]] ([[User talk:Jojonete|talk]]) 09:06, 5 November 2015 (UTC)
::I was sure both answers were correct, but never attempted to type explainxkcd, just in case. [[Special:Contributions/108.162.221.17|108.162.221.17]] 12:44, 5 November 2015 (UTC)

== wiki server clock has drifted - about 13 minutes fast ==

As I type this, it is exactly 07:42:45 UTC. [[User:Pesthouse|Pesthouse]] ([[User talk:Pesthouse|talk]]) 07:55, 14 April 2015 (UTC)

And thus timestamps here are 12 or 13 minutes off. [[User:Pesthouse|Pesthouse]] ([[User talk:Pesthouse|talk]]) 07:59, 14 April 2015 (UTC)
:I see the same thing: 15:41:00 UTC now.... [[User:Nealmcb|Nealmcb]] ([[User talk:Nealmcb|talk]]) 15:54, 23 April 2015 (UTC)
::Huh. I'll look into it, when I get back home. '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 23:19, 23 April 2015 (UTC)

Currently it's 20 minutes fast. It's 21:00 UTC and it shows 21:20 (UTC). [[User:Xhfz|Xhfz]] ([[User talk:Xhfz|talk]]) 21:20, 14 July 2015 (UTC)
:Sorry bout the delay, was busy for a long bit, should be fixed now. '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 21:44, 26 July 2015 (UTC)

Currently it's 8 minutes fast. It's 20:56:00 UTC and it shows 21:03 UTC. [[Special:Contributions/108.162.221.17|108.162.221.17]] 21:03, 5 November 2015 (UTC)
:do we not have ntp on the server or something, gonna reset the clock again when i get back home. '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 00:33, 6 November 2015 (UTC)

Happening again: it's 11:33 UTC and the server has 11:48 UTC. [[Special:Contributions/141.101.75.161|141.101.75.161]] 11:49, 11 March 2016 (UTC)
:Fixed again, and I'm gonna have to check our NTP installation. 06:37, 18 March 2016 (UTC)
:Alright, changed some things, this shouldn't happen anymore. '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 06:38, 18 March 2016 (UTC)

The clock is about 13-14 minutes off again. It's currently 13:49 UTC. –''TisTheAlmondTavern'', 13:36, 17 January 2017 (UTC)

== Discussion template resources apparently missing ==

As co-header (right-margin hugging text) to the Discussion section on all pages (or at least as many as I've just visited - and on multiple browsers, ''just in case''...) I'm getting the following, with the <>-tags being my own descriptive additions:
<redlink>File:comment.png</redlink> <validlink>add a comment!</validlink> ⋅ <redlink>File:Icons-mini-action refresh blue.gif</redlink> <validlink>refresh comments!Discussion</validlink>
Looks like the PNG and GIF files concerned have been removed, or the links in the Discussion template broken/incorrectly redirected.

(Sidenote: The character between the "add a comment!" and the "File: Icons-mini-action refresh blue.gif" that I've copied here verbatim (so doubtless appears correctly for everyone else who reads this) is an 'I don't have this character on my machine' character, for me, which is obviously entirely my fault for not downloading additional fonts that I'd need. From cursory investigation, it appears to be essentially the same as "·", Alt-0183, or HTML code '&middot;', which ''would'' render on my machine and yet (if changed) shouldn't break on those where it currently works. For your consideration, but not as vital.)
[[Special:Contributions/141.101.106.161|141.101.106.161]] 06:30, 7 November 2015 (UTC)
:ETA - Delving around further, [[:Category:Pages with broken file links]] seems to indicate it ''is'' a widespread problem at server-side, and not somehow solely my own (except for the Sidenote issue!). And suggests a simple way to check that the issue is fixed (when suddenly the category is nowhere near as 'full'), and then discover any related ones that might need fixing (like the special Star Trek Into Darkness alternate version of the Discussion template). [[Special:Contributions/141.101.106.161|141.101.106.161]] 06:57, 7 November 2015 (UTC)
::Huh. I have a feeling I know what caused this, I'll get right on it. '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 16:23, 7 November 2015 (UTC)
:::I've seen some more of these cases, e.g. on [[explain xkcd:Community portal]]. I think these images are from Wikimedia Commons, maybe that integration broke somehow? --[[User:SlashMe|SlashMe]] ([[User talk:SlashMe|talk]]) 16:33, 7 November 2015 (UTC)
::::i don't know what is even happening, the images seem to be fine now but they still show up as broken file links '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 02:04, 8 November 2015 (UTC)

== Update captcha text? ==

The text above the posting captcha says “type the two words” but reCaptcha often doesn't use two, and they're often not words. Example: http://i.imgur.com/TdM5n5O.png

Maybe we could change it to something like “type the text”?

[[User:P1h3r1e3d13|P1h3r1e3d13]] ([[User talk:P1h3r1e3d13|talk]]) 23:44, 2 March 2016 (UTC)
:So, the reCAPTCHA captchas are entirely provided by Google. If there's an error in it, it's likely Google's fault and a bug report should be sent in that direction instead. '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 00:23, 3 March 2016 (UTC)
::I noticed that before. It's not a bug in recaptcha, but rather in ConfirmEdit, file ReCaptcha/i18n/en.json to be exact. --[[Special:Contributions/162.158.90.217|162.158.90.217]]
:::Oh huh, hadn't thought of that. I'll fix that up then. '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 19:45, 3 March 2016 (UTC)

== Stylesheets not working? ==

It doesn't look like any of the site's CSS is loading for me. I have tried purging, adding useskins to the URL, and clearing my browser's cache, and webpage content remains in Times New Roman with no special styling. Headers and bold spans of text are bold, list items are bulleted, buttons are button-y, templates and my signature display with HTML-<tt>style</tt>-attribute-level CSS, and so on, but that's the extent of it. Is this a belated April Fools' joke, or has something gone horribly wrong between the servers and my eyes? [[User talk:AgentMuffin|~AgentMuffin]]

:I made a similar post earlier -- it seems to have vanished down a black hole. I linked these screenshots: [http://i.imgur.com/smN1a45.png] [http://i.imgur.com/qdpxhdY.png]
:Note that there are no ads either! This could get to problem-level very fast. [[User:KangaroOS|Kangaro]][[User talk:KangaroOS|OS]] 01:28, 5 April 2016 (UTC)
::There are actually still ads, they're just shoved right at the bottom of the page. mysqld is clocking in at 40% cpu load, and mediawiki seems to be going into fallback mode and skipping stylesheets which is about what I'd expect from an april fools comic. '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 01:31, 5 April 2016 (UTC)
:::Ah, figured it was some sort of server overslow. For a while there I was getting a 503 error. [[User:KangaroOS|Kangaro]][[User talk:KangaroOS|OS]] 01:36, 5 April 2016 (UTC)
:::Well, perhaps you don't need another note about this, but I noted the 'stylesheetless' appearance myself, just now. Except that it ''is'' styled, partially. (When I choose to view by Style "No style", it's even more not-Styled!) Could be because a subset of styles aren't being loaded (so that the ones that ''are'' still loaded can only be identified from their enforced absence), but looks like you have this as much in hand as can be expected, so just FYI... [[Special:Contributions/141.101.98.137|141.101.98.137]] 04:13, 5 April 2016 (UTC)
::Have you tried switching the server off and back on ? ;-) Jokes apart, are there really so many users continuously polling ? It could be just a case of stale open connections. Really, a reboot might not hurt (although it may kill-off few sessions and you may get some angry posts, but at this point, it might be worth the try) Edit: Sorry, I was messing up the formatting while replying. I'm trying to fix it. But at this point, does it really matter? :P [[Special:Contributions/162.158.255.56|162.158.255.56]] 04:21, 5 April 2016 (UTC)
:::Alright guys, still having trouble with the load, but I've put a quick temporary hack in place to get the css working again for now. Fonts are a little off, I'll deal with that soon. '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 08:09, 5 April 2016 (UTC)
::::Did a little more work on things, styles should be working again but it's not great on the back end. I'm going to do some rooting around to see what went wrong. '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 00:07, 6 April 2016 (UTC)
:::::Cool.. This is pretty good. We're almost there.. The only things I can notice that are off are - (1) Category list at the end of the page (2) Contents block at the beginning of the page and (3) Edit buttons for individual sections. By the way, I'm curious, what exactly was broken ? I didn't expect you'd have to fix things here. I expected that since the issue was caused by excess server load, it would return back to normalcy automatically once things settle down a bit in couple of days after the offending comic was more or less explained. [[Special:Contributions/162.158.255.56|162.158.255.56]] 03:32, 6 April 2016 (UTC)
::::::A script responsible for picking user preferences and integrating css from pages like [[Mediawiki:common.css]] was failing to complete because of server load, so I gave it a helping hand and just had it insert a static stylesheet instead. I almost certainly missed a few spots though, because the wiki does not look right. '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 04:43, 6 April 2016 (UTC)

(resetting indent) Yes, things are still off. The text "Jump to: navigation, search" is at the top of every page, but it's useless because it links to stuff already at the top of the page. Edit summaries aren't italicized, the edit boxes don't use the whole window width, links are underlined, section edit links are too big, etc. I put the Wayback Machine to good use, and found the below set of archived pages, all using the proper style. Compare them with the current appearances of the pages, and you should see most, if not all, of the issues I've seen. [http://web.archive.org/web/20160402151417/http://www.explainxkcd.com/wiki/index.php/Main_Page Main Page] | [http://web.archive.org/web/20150326134736/http://www.explainxkcd.com/wiki/index.php/Special:Contributions/NealCruco My contributions] | [http://web.archive.org/web/20150326170626/http://www.explainxkcd.com/wiki/index.php?title=1486:_Vacuum&action=edit The "edit" page for comic 1486] --[[User:NealCruco|NealCruco]] ([[User talk:NealCruco|talk]]) 21:50, 7 April 2016 (UTC)
::Is here nothing to be done about the missing styles? The tables still look horrible and there is not help when editing, for instance for signature etc. Colapsing of tables etc. also won't work which is a mess for some of the long explanations and tables [[User:Kynde|Kynde]] ([[User talk:Kynde|talk]]) 11:56, 18 April 2016 (UTC)
HotCat also seems to be not working for adding categories. {{User:17jiangz1/signature|13:18, 25 April 2016}}
:Yeah, load.php is failing so all gadgets and user scripts are unavailable. :-( [[User:Markhurd|Mark Hurd]] ([[User talk:Markhurd|talk]]) 14:42, 25 April 2016 (UTC)
::Alright, figured it out. It was a deal with file permissions, not sure how those got changed on April 1st. '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 18:59, 17 May 2016 (UTC)

== Comic navigation buttons ==

You know, the buttons that look like the ones on the xkcd site. Shouldn't they also highlight like the xkcd site? I thought maybe it was due to the above CSS issue, but the links to archive.org make it seem like it's just never worked.

It just seems to me that, if we're going to go that far in mimicking the actual buttons, we should probably also mimic their a:hover settings. Shut off the box shadow, change the background to white, and the link color to #6E7B91.

I've tested the following CSS, and it appears to work:

<nowiki>
li.plainlinks:hover, .no-link-underline > li:hover {
background-color: #FFF !important;
box-shadow: none !important;
-moz-box-shadow: none !important;
-webkit-box-shadow: none !important;
}
li.plainlinks:hover > a > span, .no-link-underline > li:hover > a > span {
color: #6E7B91 !important;
}
</nowiki>

[[User:Trlkly|Trlkly]] ([[User talk:Trlkly|talk]]) 09:14, 2 May 2016 (UTC)
:Seems like a decent addition. Thanks! '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 18:52, 1 June 2016 (UTC)

== Captcha trouble ==

For about an hour, I wasn't able to edit a page or create an account when I was trying to, because the captcha was missing. I'm not sure if it was problem on this site or captcha but I thought I'd mention it.
--[[User:Anqied|Anqied]] ([[User talk:Anqied|talk]]) 08:34, 11 June 2016 (UTC)
:Recaptcha appears to work for me currently. Does it work now? It seems like they may have just gone down temporarily. '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 20:52, 11 June 2016 (UTC)
::I'm not certain this is the same issue, but I was just having a problem with the captcha for unregistered users trying to edit a page. I figured out that it's because you were trying to serve the captcha through HTTP even though the page was on HTTPS, so my browser was blocking the captcha. Changing to HTTP "fixed" the issue, but that shouldn't be the solution. [[Special:Contributions/108.162.215.187|108.162.215.187]] 16:45, 18 July 2016 (UTC)

== wrong IP ==

[http://www.explainxkcd.com/wiki/index.php?title=632:_Suspicion&curid=3946&diff=122229&oldid=100180 My edition] was attributed to 141.101.104.60, whereas my real address is 88.156.226.213 according to [https://ipinfo.io]. Wikimedia sites (Wikipedias, Wiktionaries...) recognize my IP address properly. Someting strange is going on here. [[Special:Contributions/141.101.104.71|141.101.104.71]] 22:40, 21 June 2016 (UTC)

Just a heads up that your website is incorrectly identifying the IP address of visitors as being from the CloudFlare server that is serving the page content to them. It would be best practice if you could explicitly look for the field "REMOTE_ADDR" rather than "X-FORWARDED-FOR" as the former is unaffected by the use of intermediate proxies.
PS My IP address should begin with 131.111. IP addresses beginning with 141.101 belong to Cloudflare London. [[Special:Contributions/141.101.98.5|141.101.98.5]] 21:08, 21 July 2016 (UTC)

* This appears to still be an issue. I just [http://www.explainxkcd.com/wiki/index.php?title=Talk:1787:_Voice_Commands&curid=19860&diff=133917&oldid=133916 posted] from [[Special:Contributions/172.72.47.40|172.72.47.40]], my work place and it's showing as [[Special:Contributions/108.162.238.11|108.162.238.11]]. Thanks.

* FYI I just created this account and the "email address confirmation" email I received said the account was created by a Cloudflare IP (162.158.107.199), not my own. [[User:ExcarnateSojourner|ExcarnateSojourner]] ([[User talk:ExcarnateSojourner|talk]]) 15:09, 4 July 2020 (UTC)

== Captcha does not appear ==

I am not a registered user (I just haven't bothered to make an account), so I have to complete a Captcha before saving any of my edits. However, I've found numerous times that the captcha does not show up when I hit [Save page]. The line of text introducing it ("To help protect against automated edit spam, please type the word you see in the box below:") shows up, but the no actual captcha and thus no saved edits. '''Is this a known issue with Chrome?''' I managed to circumvent it by using IE (I assure you, it was the only other browser available), but I would much prefer to be able to edit ''explain xkcd'' pages in Chrome, my usual browser. {{unsigned ip|108.162.220.17}}
:What plugins do you have installed on chrome? Do you have Javascript enabled? I'll see what can be done if you have them off. '''[[User:D?avidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 20:45, 20 July 2016 (UTC)
::I just figured out the problem and successfully edited a page. I too tried IE after Chrome but still encountered the issue... to my consternation I noticed a new icon in the address-bar, 'Blocked content'. (Apparently recaptcha is treated similarly to a pop-up.) Interacting with this new button made the captcha appear. I am in Chrome adding this comment, and after finding the similarly-functioning/corresponding button here, all is well [[Special:Contributions/108.162.237.247|108.162.237.247]] 18:39, 2 August 2016 (UTC)
::Hmph, I am likely a completely different user from the foregoing, but our IP addresses are similar and both reported as from Cloudflare in TX. [[Special:Contributions/108.162.237.247|108.162.237.247]] 18:42, 2 August 2016 (UTC)
::I would like to address this and also point out this is the only site where I've run into this problem; other wiki-based sites can load captcha fine. According to Chrome it's blocked because it's an "unsafe script". [[Special:Contributions/141.101.107.84|141.101.107.84]] 08:54, 4 March 2018 (UTC)

== Wanted files ==

[[Special:WantedFiles]]: 41 file is linked but nonexistent.

Some on talk pages, user pages and project pages, but here is a list of those in main namespace:
# File:Apatosaurus scale mmartyniuk wiki.png
# File:Apidae - Eucera sp. (male).JPG
# File:Louisae.jpg
# File:Wet kookaburra 6674 Crop Edit.jpg
# File:MQ-1 Predator unmanned aircraft.jpg
# File:Bee orchids, Aller Brook Local Nature Reserve - geograph.org.uk - 833516.jpg
# File:Synhalonia nest 1.jpg
# File:Butterfly Voters View.jpg
# File:Fusca estacionado.jpg
# File:Ophrys apifera flower1.jpg
# File:Galilean moon Laplace resonance animation.gif
# File:PalmCellTower.jpg
# File:746 telephone in red.JPG
# File:Candidate Higgs Events in ATLAS and CMS.png
# File:Tommy Wiseau.jpg
# File:Google maps auto.jpg
# File:Velociraptor dinoguy2.jpg
# File:Acrocanthosaurus skeleton (1).jpg
# File:Vraptor-scale.png
# File:Alces alces elan trophee chateau Tanlay.jpg
# File:DBCooper.jpg
# File:Rick Astley - Pepsifest 2009.jpg
# File:Anonymous emblem.svg
# File:Eas new.svg
# File:John Cage and Michael Bach in Assissi 1992.jpg
I could not find why they were deleted and it's hard for me to argue for their presence in the articles. Being a newbie here, I would like to ask those who knows better to either undelete files, or upload them again, or delete file mentions from the explanations. Thanks --[[User:Ата|Ата]] [[User talk:Ата|(talk)]] 15:47, 8 August 2016 (UTC)
:I tend to clean up after myself, don't recognise these file names. I believe these happen when files get moved, feel free to cut dead file links wherever you find them if you find them unnecessary.'''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 02:38, 10 August 2016 (UTC)

== [[827]]/[[1721]]: Business Idea ==

See [[1721#Trivia]]. Randall has accidentally named both 1721 and 827 "Business Idea". He fixed it by renaming 827 to "My Business Idea". I tried to reproduce by renaming the file and wiki page for 827, but it now shows the old comic on both pages. Maybe CloudFlare caching? And idea (that's not a business idea) to fix this? --[[User:SlashMe|SlashMe]] ([[User talk:SlashMe|talk]])
:Cloudflare takes a little time to update changes to an image. For immediate results, you can create an image under a different name and use that while you wait for the old one to update. Otherwise, it should update within a few hours. Is it good for you now? '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 14:48, 18 August 2016 (UTC)
::Yes, it was resolved after a few hours. --[[User:SlashMe|SlashMe]] ([[User talk:SlashMe|talk]]) 20:25, 18 August 2016 (UTC)

== Mobile CSS ==

I've accessed this Wiki on my mobile device more often than previously and I couldn't find any discussion about this. Honestly, 50% of the reasons I'm adding this topic is about the discussion, the rest is about making it easier for people with narrower screens.
I understand that I am a new member on this Wiki and that altering [[Mediawiki:Common.css]] has site-wide effects (and I'm sure that there are some templates that won't agree with some of the options we have, even some tables, such as the one on [[893: 65 Years#Trivia]], will break a very narrow design).

OK. Let me just ramble on about this, then. =)
There are some obvious (but not necessarily easier) options for mobile devices. [https://www.mediawiki.org/wiki/Manual:Mobiles,_tablets_and_responsive_design MediaWiki] lists a few Skins and Extensions. Not having ever had access to a Wiki's server, I have no idea how nerve-racking that is (or if it even makes sense for this Wiki). Even more obvious to some - and even harder to implement - is a mobile app (that I wouldn't use anyway).

So, to bridge the time until maybe something more effective comes along, we ''could'' try to add some CSS ourselves. I'm no expert. But here are my thoughts.
*This is about all devices with narrow screens, not just phones. Let's say anything under 600px width is considered narrow.
*Most obviously, the font size should be affected. This has negative consequences for anything with fixed font size. And anything we forget. Basically, the sidebar, the search and anything else on top of each page can be massively smaller depending on the screen and fixing that won't be as easy.
*Of course we could disregard the sidebar, or rather, push it to the bottom (which is easy, it's artificially placed on the left instead of the bottom). There are a number of reasons why a lot of people wouldn't want that. One of those reasons is that the ads would basically disappear for anyone who doesn't scroll down. We would have to figure out where else we can put it, on the top maybe. On the plus side, we could have the entire width of the screen just for the article.
*Another thing that breaks the design regularly: comic images. We could make them fit. The navigation might be more challenging.
*There's a whole lot of paddings and margins to get rid of.
*Maybe make the search box a lot bigger?

A short snippet for the comic images and for the font:

@media handheld,screen and (max-width: 600px),screen and (max-device-width: 600px){ /* because some mobile browsers like to work with a higher resolution than the resolution of the screen */

#bodyContent{
font-size:initial; /* resetting font to full size */
}

td > img{ /* maybe add a class for the table in [[Template:comic]] */
display:block;
margin:auto;
max-width:100%; /* make image fit into box */
height:auto;
}

}

I don't know... What do you think?
Oh, also, Mediawiki says this can be added to [[Mediawiki:Mobile.css]] but I guess that is for extensions? We'd probably have to add that to [[Mediawiki:Common.css]] if we ever want to add it.
[[User:Ret Samys|Ret Samys]] ([[User talk:Ret Samys|talk]]) 16:21, 15 September 2016 (UTC)
:Getting on a plane soon, but I'll take a look at this when I get off and get moved in again. '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 14:07, 16 September 2016 (UTC)

== HTTPS Links Back to XKCD Interfere with Random Button ==

''(I've moved this from "Proposals" to here, now realising this is the proper location.)''

The Links back to the comics that are present just above the comic itself on the wiki pages (and adjacent to the next and previous links) provides an HTTPS link back to XKCD. However, this interferes with users who want to click that link, and then click <code>random</code> - because <code>c.xkcd.com</code> does NOT support HTTPS, and thus clicking <code>random</code> after returning to xkcd from explainxkcd via the button on a comic's article does not work. These links should be switched back to HTTP.

--[[User:9000 volts|9000 volts]] ([[User talk:9000 volts|talk]]) 22:53, 24 December 2016 (UTC)

:What makes you suspect <code>c.xkcd.com</code> does not support SSL? It features a perfectly valid wildcard certificate from GeoTrust (currently valid from Dec 14 00:00:00 2016 GMT, so it should already have affected you), although it's different from the multi-site certificate from Fastly used on the comic and what-if.xkcd.com and, yet again, different from the Let's Encrypt ones used on the blag and store.

:On the other hand, there is a compelling argument for HTTP links: Most interactive comics break with HTTPS. –''TisTheAlmondTavern'', 14:19, 17 January 2017 (UTC)
::I can't reproduce the issue with random comics, but the benefits of using SSL for links to a site that stores no user data probably don't outweigh the issues that some people seem to be having. Changed. '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 22:34, 10 February 2017 (UTC)

== "Retry for a live version" and stuff not responding ==

Every now and then, I'd just be browsing around the site, then all of a sudden I'd run into an issue with it saying that there was an error with the explainxkcd.com host and that I would need to wait for the servers to restart. This is happening rather often for me, but goes away quickly. Sometimes, it happens on my own wiki pages too... weird. Other times, things would just freeze. Is it something on my end, or is it with the site? --[[User:JayRulesXKCD|JayRulesXKCD]] ([[User talk:JayRulesXKCD|talk]]) 14:05, 5 January 2017 (UTC)

== Support for timezones? ==

I live in the timezone PST, and because of that, the clock seems to be ahead of my time by about 7 hours and 40 minutes. Can someone add support for different timezones?
For example, at my time of posting, it is 7:56 PM on March 8, 2017. The time the wiki thinks it is is shown on my signature: [[User:625571b7-aa66-4f98-ac5c-92464cfb4ed8|625571b7-aa66-4f98-ac5c-92464cfb4ed8]] ([[User talk:625571b7-aa66-4f98-ac5c-92464cfb4ed8|talk]]) 03:40, 9 March 2017 (UTC)
:You can actually set your own time zone. Go to Preferences->Date and Time, and there should be a time offset option for you to pick your time zone. '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 07:36, 9 March 2017 (UTC)
::The thing is, I do have my time zone set to PST, but on the wiki it is still showing up as the wrong time. [[User:625571b7-aa66-4f98-ac5c-92464cfb4ed8|625571b7-aa66-4f98-ac5c-92464cfb4ed8]] ([[User talk:625571b7-aa66-4f98-ac5c-92464cfb4ed8|talk]]) 15:24, 9 March 2017 (UTC)
:::Oh, the timestamps recorded in signatures are in UTC for everyone. That doesn't change, because it makes it easier to follow the timeline of a conversation in a talk page. '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 17:24, 9 March 2017 (UTC)
::::Uhhh, the timestamp isn't UTC at all. My latest BOT upload was 06:02, 8 March 2017 CET or 05:02, 8 March 2017 UTC and it is recorded here as 04:45, 8 March 2017. So we still have an offset 17 minutes to the past. That's an old problem.--[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 18:33, 9 March 2017 (UTC)
:::::It is UTC, server inaccuracy doesn't change the time zone, it just makes it inaccurate. '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 19:13, 9 March 2017 (UTC)
::::::And even if you don't like me for this: The server time is currently UTC-00:17 and not UTC. This odd offset confuses users. But I know nobody can change this.--[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 19:36, 9 March 2017 (UTC)

== Mailserver-problem ==

Hello, 
I tried to reset my password today, but there is a problem with your mail-server: The sender-adress of your password-reset-mail is expla0@vps.explainxkcd.com, but the (sub-)domain vps.explainxkcd.com does not exists, and so the eMail is rejected by my mail-server (and most others too). Could that please be fixed? Thank you very much. --DaB.

== When did InstantCommons get disabled? ==

I was just about to add some photos of the ISS transiting the sun to [[1828|today's explanation]], but saw that it's no longer possible to just enter the names of {{w|c:|Wikimedia Commons}} photos and for them to render. I know of at least one explanation—[[1400]]—that previously had such images, but now just has redlinks. I presume that at some point someone must have disabled {{w|mw:InstantCommons|$wgUseInstantCommons}} in the config settings. May I ask what the reason for that was? And is there any chance that that could be reverted? Obviously there aren't a lot of articles where it makes sense to have Commons images up, but IMHO it's a useful feature to have for the rare occasion where it makes sense, like with today's comic. [[User:PinkAmpersand|PinkAmpersand]] ([[User talk:PinkAmpersand|talk]]) 21:20, 24 April 2017 (UTC)
:'''Solved.''' You now can embed pictures from Commons like local files. The link <nowiki>[[File:DBCooper.jpg|thumb|Cooper]]</nowiki> shows the picture from Commons because it doesn't exist here. There is no need to use a template. --[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 23:57, 25 May 2018 (UTC)

== Wikipedia template stopped working ==

Some time ago the template used for links to Wikipedia stopped working correctly. If you see here link to Halloween on Wikipedia, it works again:
{{w|Halloween}}. --[[User:JakubNarebski|JakubNarebski]] ([[User talk:JakubNarebski|talk]]) 22:21, 25 June 2017 (UTC)

: Known issue, there's currently an anon doing boring vandalism. --[[Special:Contributions/108.162.241.172|108.162.241.172]] 22:37, 25 June 2017 (UTC)

== CAPTCHA does not work for HTTPS visitors ==

I am a fervent believer in encrypting everything (I am the crypto nut in [[1269: Privacy Opinions]]), and have configured the NoScript plugin to force the use of HTTPS instead of HTTP for all sites that aren't on a special list in my configs. Hence, I tend to visit sites on HTTPS that most people visit on unencrypted HTTP, discovering all the bugs in people's HTTPS implementations in the process...and this site is not exempt from the bugfinding.

In order to edit pages, you need to enter a CAPTCHA. However, the script that makes this captcha work is fetched from Google over unencrypted http (the src tag in the script specifies http: not https:). When I visit this site over HTTPS, the use of active content served over unencrypted HTTP onto an encrypted page causes Firefox to have a spasm and block the script. Since Google fully supports HTTPS, the script's src tag should just be changed to say https: instead of http:, and that SHOULD fix it. Better yet, omit the protocol at all, and do something like:

src="//www.google.com/recaptcha/(rest of url)"

Most modern browsers will interpret that as "fetch www.google.com/recaptcha/(rest of url) over the same protocol used to serve this page."

(Sadly, NoScript is not smart enough to fix this by itself and just change the script's src to https: client-side...)

[[Special:Contributions/162.158.79.89|162.158.79.89]] 11:12, 20 August 2017 (UTC)

The CAPTCHA also doesn't work for https while using Chrome. 01 September 2017

== Deprecation of reCAPTCHA v1 ==

The wiki currently uses reCAPTCHA v1 to validate users as human, which [https://developers.google.com/recaptcha/docs/faq#what-happens-to-recaptcha-v1 beginning in November will show public deprecation notices] and stop working altogether on March 31, 2018.

Are there already plans to migrate to reCAPTCHA v2 or a different CAPTCHA algorithm? –[[User:TisTheAlmondTavern|TisTheAlmondTavern]] ([[User talk:TisTheAlmondTavern|talk]]) 20:05, 31 October 2017 (UTC) (wiki clock is several minutes late again, BTW)

:I do intend to update the CAPTCHA, I got the email notice from Google. I've been away from the site for longer than I'd like, been busy but it looks like a bunch of stuff has piled up while I was gone. I'll try to fix what I can with the time I have. '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 03:38, 12 November 2017 (UTC)

::Any update on this? It has <6 weeks of life left, and the user messaging has just got angrier. [[Special:Contributions/162.158.155.26|162.158.155.26]] 09:22, 20 February 2018 (UTC)

:::10 days left. I wonder what happens then. Right now, it just says "V1 SHUTDOWN ON 2018-03-31" and expects me to type it as an answer. {{unsigned ip|172.68.110.46}}

::::You can hit the refresh button and it will display an actual catch. 4 days before they shut it down. [[User:TheMageKing|TheMageKing]] ([[User talk:TheMageKing|talk]]) 12:22, 27 March 2018 (UTC)

Either the kludge of simply typing the message about shutdown still works, or the Captcha system is just not working: I'm not autoconfirmed here but I was able to edit today, 9 days after v1 presumably went "poof". [[User:Yngvadottir|Yngvadottir]] ([[User talk:Yngvadottir|talk]]) 18:12, 9 April 2018 (UTC)

The new reCAPTCHA v2 is now online. I apologize for the delay but many updates were required and I tried to keep the server downtime as short as possible. [[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 12:53, 19 May 2018 (UTC)
== RSS bot stopped? ==

The master RSS feed only goes up to 1912, although the wiki is already up to 1914. --[[Special:Contributions/141.101.105.18|141.101.105.18]] 11:20, 11 November 2017 (UTC)
:Sorry, been busy, the feed should be up and running again. '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 03:38, 12 November 2017 (UTC)

== Captcha doesn't work on my browser ==

I can't make any edits to the comic pages because the captcha simply doesn't appear when I'm trying to edit the comic pages. {{unsigned|WilliamBrennan}}
:Please check your add blockers and activate JavaScript. [[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 12:53, 19 May 2018 (UTC)

Hi & Thanks heaps! I finally created an account after years of pleasurable & enlightening explanations. It took me over 5 minutes to get past the Captcha, and I've seen a few in the last week registering for sites such as XDA-developers and the like. Not sure how it all works but it feels like it's set to "ultra-difficult" or some-such...and this is the place where things are *easy* for *stupid people* like me ;) Cheers & thanks again {{unsigned|Munchywok}}
:The Captcha is from Google (Big Brother...) and based on an sophisticated software in which you sometimes even don't have to solve it at all when it is convinced that you are a human. But it depends on your browser installation, especially your add ons. My best experience is using Google Chrome without any extensions. Firefox with extensions is the hell. --[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 09:25, 15 August 2018 (UTC)

== New High Resolution comics ==

I've noticed Randall has been making the comics higher resolution to look good on HiDPI/Retina displays. But the copies on ExplainXKCD are the old low resolution copies.

Perhaps we'll have to go through at some point and update these? {{unsigned ip|162.158.75.58}}
:I am aware of this. Randall started to provide two different resolutions at standard comics more than a year ago, and he also provides the larger resolutions to older comics since than. Technically the image tag provides links to two pictures and the browser decides based on the screen resolution what is shown. Since this wiki is now at the latest version the use of [https://www.mediawiki.org/wiki/Manual:$wgResponsiveImages $wgResponsiveImages] may be possible. But this has to be tested first. Stay tuned... [[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 12:53, 19 May 2018 (UTC)

== Should the HTTP urls redirect to HTTPS? ==

Not sure if this has been mentioned before, but shouldn't the HTTP urls be redirecting to HTTPS? Right now, the HTTP and HTTPS endpoints seem to have different login states, which is possibly confusing. I was stumped for a long time on why I couldn't login to my account, because I kept getting the error message "There seems to be a problem with your login session; this action has been canceled as a precaution against session hijacking. Go back to the previous page, reload that page and then try again." And then I noticed the "Use secure connection" button, and when I clicked it, it took me to the HTTPS site where I was already logged in! But even now, if I go to an HTTP url, I'm still logged out there. [[User:Ahiijny|Ahiijny]] ([[User talk:Ahiijny|talk]]) 00:43, 21 August 2018 (UTC)
:Of course HTTP and HTTPS are different endpoints. Login via HTTPS and your credentials are encrypted and this will be never converted into plain text for HTTP. And I just successfully tested both connections with Google Chrome. Maybe we should redirect always to HTTPS like xkcd does, right now it's just your choice. --[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 14:46, 21 August 2018 (UTC)

::Ah, I see. If I log in from the HTTP site, I'm logged in on both the HTTP and HTTPS sites. But if I login from the HTTPS site, then I'm only logged in on the HTTPS site, and not on the HTTP site. Furthermore, if I'm logged into the HTTPS site and I try to login from the HTTP site, I get the error message that I quote from above. Fair enough.

::I guess one contribution to my confusion was the fact that the HTTPS site doesn't have the green padlock in Chrome. That would have made the difference between the HTTPS and HTTP site a bit more obvious. (I rarely type in the entire URL directly; I usually just let the Chrome address bar autocomplete do its job... and unfortunately that autocomplete takes me to the HTTP site, and I keep forgetting about that.) Right now, on any HTTPS page here, Chrome still says that it's insecure: "Attackers might be able to see the images you're looking at on this site and trick you by modifying them." Firefox says something similar: "Parts of this page are not secure (such as images)." Perhaps someone should look into that? (I think it might be the ad image.) [[User:Ahiijny|Ahiijny]] ([[User talk:Ahiijny|talk]]) 03:09, 23 August 2018 (UTC)
:::Thanks for your remarks. I'm aware of this but the site isn't insecure, only a few local images and some from wikimedia are hard coded to a http link. It's not much so I'll fix it soon.
:::In general every http request should be redirected to https, but that's not trivial at our current environment. --[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 14:35, 23 August 2018 (UTC)
::::It took some time to find all the places of hard coded images via http (insecure) but now you should see the green secure remark in your browser when logging in via https. --[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 13:50, 24 August 2018 (UTC)
:::::in my holy opinion at least the login page should only be served securely. people are notoriously bad at not-reusing-passwords. [[User:Gir|//gir.st/]] ([[User talk:Gir|talk]]) 12:23, 10 September 2018 (UTC)

Just noting that basically every major site out there redirects from HTTP to HTTPS (including http://en.wikipedia.com, http://xkcd.com, http://stackoverflow.com, and even other wiki communities like http://wiki.puella-magi.net, http://en.touhouwiki.net/wiki/Touhou_Wiki, and http://wiki.documentfoundation.org). So it would really cool if we could get that redirect action happening on this site, too :) I was browsing the site today and I was just struck once again by how odd it was that I wasn't logged in, until I remembered that I was on the HTTP site, not the HTTPS site. A real user experience annoyance, if you ask me. [[User:Ahiijny|Ahiijny]] ([[User talk:Ahiijny|talk]]) 21:34, 19 October 2018 (UTC)
:Of course you're right. I still have other issues but this will be done soon. Stay tuned... --[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 19:08, 20 October 2018 (UTC)

== Captcha too picky ==

I just had to solve the "select all street signs" Captcha at least 10 times in a row. I never know when/whether to include slivers, backs of signs, sign posts, walk/wait lights. Captcha already doesn't follow my definition of street sign (I only call the sign that has the street name a "street sign", but I realize what I call "road signs," Captcha also calls "street signs" and I can adjust for that. But I haven't figured out the other issue yet, and I suspect Captcha is dinging me on choosing slivers. But that's only a guess, since it never tells you what you got wrong, it just gives you another Captcha. {{unsigned|Thisisnotatest}}
:My advice is installing Google Chrome and it works fine. Since that Captcha software is also from Google (Big Brother...) I believe that's on purpose. Firefox is the hell as you described; I'm not sure how it works at MS IE/Edge. In general you have to select not less than three and not more than four squares. But on Firefox, even when it seems definitely to be correct, the chance of getting an error message is more than 80%. You probably use FF. Nonetheless right now there are no other adequate Captcha tools supported by Mediawiki, the software this Wiki runs on. --[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 12:57, 27 August 2018 (UTC)
:I second this. Big Brother's Captchas on Firefox are nearly unsolvable (granted, I'm browsing with JS off and blocking 3rd party cookies). And recaptcha requires 1) JavaScript and 2) a connection to google. [[User:Gir|//gir.st/]] ([[User talk:Gir|talk]]) 12:23, 10 September 2018 (UTC)

== Cannot create a user page ==

i have tried to make a user page for myself and cannot seem to do it, i'm sorry if this has been addressed already, but i couldn't find it. [[User: Nintendo Mc]] ([[User talk:Nintendo Mc|talk]]) 13:07, 28 September 2018 (UTC)
:New user don't have the rights. Do some more edits and wait a few days until you can create new pages. Your user page is created by me for now. --[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 15:00, 28 September 2018 (UTC)

::'''Good Question!''' is there some place '''that everyone''' [who is cool] '''can find,''' that explains '''how many''' edits one has to do (and/or, '''how long''' one has to wait) in order to cause the<blockquote>[...] but you do not have permission to create this page.</blockquote>
::'''[error] message''' to ... '''"no longer" appear,''' when some limitation or rule is no longer blocking or "preventing" allowing creation -- by that user -- of his own '''"User:"''' page? (OR ... of ''her'' own '''"User talk:"''' page?)

::I have done [https://www.explainxkcd.com/wiki/index.php/Special:Contributions/Mike_Schwartz very few edits] here, but ... a couple of them were almost '''3 years ago.'''

::For what it's worth (FWIW), '''I did not plan to say much''' on my "User:" page here. Probably something like:
::::This user is not a frequent flyer here on this Wiki (at "explainxkcd"); ...but he has done [https://en.wikipedia.org/wiki/Special:Contributions/Mike_Schwartz a 4-digit number of edits] on ''other'' Wikis ...mainly [https://en.wikipedia.org/wiki/Main_Page English Wikipedia] ("See also" his [https://en.wikipedia.org/wiki/User:Mike_Schwartz "User:" page] there.)

::<big><big>Any comments?</big></big> Thanks for listening. --[[User:Mike Schwartz|Mike Schwartz]] ([[User talk:Mike Schwartz|talk]]) 07:43, 7 April 2020 (UTC)

:::According to [[explain xkcd:Community portal/Admin requests#Permission request|here]] and [[:explain xkcd:Autoconfirmed users]], you need to accumulate 10 edits (as well as your account being active for at least 3? or 7? days), then you become an "autoconfirmed user" and gain the [[Special:ListGroupRights|right]] to create pages. – [[User:Yfmcpxpj|Yfmcpxpj]] ([[User talk:Yfmcpxpj|talk]]) 02:09, 29 September 2020 (UTC)

::::Do you know if only edits count, or if talk contributions count too? [[User:PDesbeginner|PDesbeginner]] ([[User talk:PDesbeginner|talk]]) 14:26, 19 June 2024 (UTC)
::::Wait. On [[:explain xkcd:Autoconfirmed users]] it says 50 edits, not 10. [[User:PDesbeginner|PDesbeginner]] ([[User talk:PDesbeginner|talk]]) 14:51, 26 June 2024 (UTC)

== Accessibility issues ==

[First post - hello, everyone!]

I have 15 years of experience of using MediaWiki, and have been heavily involved in some of the accessibility work on Wikipedia.

When we use colons (<code>:</code>), semicolons (<code>;</code>), and asterisks (<code>*</code>) to indent dialogue, discussions, etc we actually cause MediaWiki to generate HTML lists.

If we leave a bank line between indented lines/ paragraphs, we cause the start of a new HTML list.

Since the start of each list is read out by the kind of software used by (for example) people with severe visual impairments, this generates barrier to their use of the site.

The solution is to not leave blank lines; to always indent replies by just one step; and to maintain consistency in the type of character used.

You can see examples and more explanation at {{w|Wikipedia:Manual of Style/Accessibility#Lists}}

Please consider adopting Wikipedia's recommended best practice for such lists, on this site. [[User:Pigsonthewing|Andy Mabbett]] (Pigsonthewing); [[User talk:Pigsonthewing|Talk to Andy]]; [[Special:Contributions/Pigsonthewing|Andy's edits]] 19:20, 5 November 2018 (UTC)
:Thanks for your input and welcome here. At first you should know that this Wiki doesn't follow every Wikipedia standard, but there is a --relatively new-- [[explain xkcd:Editor FAQ|FAQ]] and we should talk at that discussion page about any enhancements. And please consider to keep it short, a typical editor here isn't a Wikipedean and doesn't read tons of manuals.
:There are many ugly layouts here, most written before the FAQ did exist, but when I and others see them the explanation or transcript gets an incomplete tag for that reason. And the biggest problem in the past was the use of overwhelming tables.
:BTW: Using a new-newline for each sentence isn't also a nice layout. Never mind... --[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 20:54, 5 November 2018 (UTC)

== suggest adding info to pages ==

I see "Title text" here on explainxkcd, but not on the comic itself.

Eg. https://www.explainxkcd.com/wiki/index.php/1313:_Regex_Golf shows "Title text: /bu|[rn]t|[coy]e|[mtg]a|j|iso|n[hl]|[ae]d|lev|sh|[lnd]i|[po]o|ls/ matches the last names of elected US presidents but not their opponents."

I don't see that anywhere on https://xkcd.com/1313/ Why not? {{unsigned ip|172.68.174.106}}

:First of all: Please sign your comments
:<s>Second: I am not sure this is the right place for such a question, so please do not wonder if someone removes it.</s>
:And finally: the "title text" can be seen by hovering the mouse over the image on the "regular" xkcd page. Here it is made more visible by mentioning beneath the picture additionally. More details can be found at the page about the title text :) https://www.explainxkcd.com/wiki/index.php/title_text [[User:Lupo|Lupo]] ([[User talk:Lupo|talk]]) 15:09, 12 November 2018 (UTC)

@[[User:Lupo|Lupo]], no honest comment will be removed here, even if it should be posted at the [[explain xkcd:Community portal/Miscellaneous|Miscellaneous]] section. @IP, the proper internal link is here: [[title text]], and I see that this wiki needs a simple page to explain all the terms and characters used in a general short way. --[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 19:43, 12 November 2018 (UTC)

== Mediawiki exception on some pages ==

I get the following MedaiWiki exception on some of the pages:

<pre>MediaWiki internal error.

Original exception: [0beebcc3efaec7ded86aea14] 2018-12-05 23:25:16: Fatal exception of type "MWException"

Exception caught inside exception handler.

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

See for example sites https://www.explainxkcd.com/wiki/index.php/2034:_Equations or https://www.explainxkcd.com/wiki/index.php/User:Dgbrt

[[User:Sztupy|Sztupy]] ([[User talk:Sztupy|talk]]) 23:29, 5 December 2018 (UTC)

:Also having this. Seems to happen when “math” in Preferences-Appearance is set to “MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools)” [[User:DrMeepster|DrMeepster]] ([[User talk:DrMeepster|talk]]) 08:01, 8 December 2018 (UTC)

:New error: If that math option is set to “Latex source” than an error relating to the page-ruining setting replaces any latex code: Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension can not find Restbase URL. Please specify $wgMathFullRestbaseURL.") from server "invalid":): <LATEX CODE HERE> [[User:DrMeepster|DrMeepster]] ([[User talk:DrMeepster|talk]]) 07:50, 11 December 2018 (UTC)

::Sorry for my late reply. I will check and solve this issue soon, right now only the plain PNG image setting does work. --[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 18:15, 15 February 2019 (UTC)

: The problem appears to not be solved. In addition to the above pages (which are still broken), I've noticed it on the following: https://www.explainxkcd.com/wiki/index.php/2292 and https://www.explainxkcd.com/wiki/index.php/2311. The workaround of configuring my account to render math as PNG works, but someone with the knowledge and access to fix this needs to do so. [[User:Shamino|Shamino]] ([[User talk:Shamino|talk]]) 13:43, 3 June 2020 (UTC)

== “All 2126 Comics have an Explanation” ==

There are 2127 comics, and the main page seems to update automagically, so I’m not sure what the issue is. [[User:Netherin5|“That Guy from the Netherlands”]] ([[User talk:Netherin5|talk]]) 15:58, 25 March 2019 (UTC)
:I think you posted this before the "new robot" comic came up? keep in mind that the number 404 is not linked to any comic. (There is an explain page for 404, but no comic 404. Therefore it is actually 1 comic less than you might think based on the number. On the other hand there are I think 2 or 3 additional special comics (not numbered), such as the latest entry to the 5 minute comic series, or the one about open source, etc. [[User:Lupo|Lupo]] ([[User talk:Lupo|talk]])
::I posted after it came up. I know about the unnumbered comics, so assumed they didn’t count, but I always forget about 404. Accounting for the non-comic, all seems right in the world. Thanks Lupo. [[User:Netherin5|“That Guy from the Netherlands”]] ([[User talk:Netherin5|talk]]) 14:01, 26 March 2019 (UTC)
:::Just checked and they just subtract 1 in the source code??????? [[User:Netherin5|“That Guy from the Netherlands”]] ([[User talk:Netherin5|talk]]) 16:58, 12 April 2019 (UTC)

== API ==

Hi, I'm working on a project focused on docs, and wondered if there's some API or database I can access to pinch some of the tagging info from this site?
Even something like Randall's /json.html data from each page would work. ''[[User:Toonarmycaptain]] ([[User talk:Toonarmycaptain]] forgot to sign this edit at 03:50, 14 May 2019 (UTC)''

== Unwanted Link ==

In [[1467: Email]], there are two links in the title text that should be normal text. It has happened several times in other pages, and it's annoying. How do I change links like that into regular text? [[User:Herobrine|Herobrine]] ([[User talk:Herobrine|talk]]) 07:41, 11 July 2019 (UTC)
:Not sure what you mean. Maybe it is a browser issue on your end? on my computer neither chrome nor internet explorer or edge interpret anything inside of "My New Year's resolution for 2014-54-12/30/14 Dec:12:1420001642 is to learn these stupid time formatting strings." as a link... [[User:Lupo|Lupo]] ([[User talk:Lupo|talk]]) 08:00, 11 July 2019 (UTC)
::Just checked. iPad misinterpreting part of them as phone numbers, appeared as link. [[User:Herobrine|Herobrine]] ([[User talk:Herobrine|talk]]) 09:29, 11 July 2019 (UTC)

== Captcha not working? ==

I've been experiencing some problems when trying to solve captcha when posting comments and topics. It's gotten much harder than before, I fail a lot more often, and occasionally, when I finish it, it reloads the page with an "Incorrect or Missing Captcha" error, and forces me to retry. Has anybody else experienced this problem? Am I the only one with Captcha issues? '''Has it been working properly in recent times?'''[[Special:Contributions/108.162.241.244|108.162.241.244]] 18:40, 8 November 2019 (UTC)

== DgbrtBOT ==

The bot seems to have been down since December 13, 2019, and Dgbrt hasn't made a single edit since March, 2019. He hasn't responded to the comments in DgbrtBOT's talk page, either. Is there any way for an someone to contact him? [[User:Herobrine|Herobrine]] ([[User talk:Herobrine|talk]]) 13:12, 1 January 2020 (UTC)
:The bot has resumed its extremely helpful work again this week, but no word yet on why it was MIA for a solid month. [[User:Ianrbibtitlht|Ianrbibtitlht]] ([[User talk:Ianrbibtitlht|talk]]) 14:06, 10 January 2020 (UTC)

== Google Ads appearing all over the page ==

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? [[User:Herobrine|Herobrine]] ([[User talk:Herobrine|talk]]) 13:20, 1 January 2020 (UTC)

== Links to xkcd pages sould be withoult "www." part ==

There is an issue with loading resources on pages, that are opened with "www." part in URL.
For example commic [https://www.xkcd.com/1975/ 1975].
If viewed from https://www.xkcd.com/1975/, comic is not interactive. On the other hand, https://xkcd.com/1975/ works like a charm.

Page failes to load resorces from https://xkcd.com/1975/alto/root with error caused by CORS policy:

* Access to fetch at 'https://xkcd.com/1975/alto/root' from origin 'https://www.xkcd.com' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource. If an opaque response serves your needs, set the request's mode to 'no-cors' to fetch the resource with CORS disabled.

All links to commics in headers (button ''Comic #1975 (April 1, 2018)'') include "www." part, for example this explanation:
https://www.explainxkcd.com/wiki/index.php/1975:_Right_Click

IMO links in headers (buttons ''Comic #xxx (date)'') should be updated to exclude "www." part.

== Can't create my userpage ==

I just registered, and can't seem to edit/create my own userpage. I've been editing MediaWiki wikis for a very long time and it's currently part of my career, so I'm pretty sure I'm doing everything right. Is there a prerequisite number of edits or something before I can create my userpage? [[User:Equazcion|Equazcion]] ([[User talk:Equazcion|talk]]) 22:18, 6 April 2020 (UTC)

:I do not know the answer to that, but ... if one of us finds out "sooner" than the other, then, let's "share" the answer. Yours might appear here, and mine ... might appear about eleven "sections" up, in this same "Technical" portal ... <s>at the URL</s> in the section "[[explain_xkcd:Community_portal/Technical#Cannot_create_a_user_page|Cannot create a user page]]." (see [https://www.explainxkcd.com/wiki/index.php?title=explain_xkcd%3ACommunity_portal%2FTechnical&type=revision&diff=190166&oldid=190127 the DIFF listing]...)

:Maybe I should have "seconded the motion" '''here''', instead of adding my own question, -- which is very similar! -- to a different section, up '''there?''' Pardon me ... --[[User:Mike Schwartz|Mike Schwartz]] ([[User talk:Mike Schwartz|talk]]) 08:15, 7 April 2020 (UTC)

::[[explain_xkcd:Community_portal/Admin_requests#Permission_request]] might help. [[User:A(l)Chemist|AlChemist]] ([[User talk:A(l)Chemist|talk]]) 11:06, 22 June 2020 (UTC)

:::Yes, according to that page, your account must be at least one week old, AND you must have made at least 10 edits. There's a new page, [[:explain xkcd:Autoconfirmed users]], which says it's three days (rather than one week) and 10 edits – after that, you become an "autoconfirmed user", and gain the right to create pages ([[Special:ListGroupRights|among other things]]). – [[User:Yfmcpxpj|Yfmcpxpj]] ([[User talk:Yfmcpxpj|talk]]) 02:01, 29 September 2020 (UTC)

== List of all comics incomplete/overflowing ==

The [[List_of_all_comics | List of all comics]] and the full list are incomplete, stopping with 2289. Taking a look at [[List_of_all_comics_(full) | List of all comics (full)]] nets that it belongs to the category 'Pages where template include size is exceeded', so I'm assuming it just hit the limit. I'm sadly not well versed in MediaWiki, so I have no idea what a workaround would look like

== 2138 page issues ==

This first came up when following a link from on of the other Code Quality pages.

when you go to https://www.explainxkcd.com/wiki/index.php/2138:_Wanna_See_the_Code%3F you get a blank pag that says "No input file specified."

however when you go to https://www.explainxkcd.com/wiki/index.php/2138 you get the actual page via redirect but when you reload the page it goes back to "No input file specified."

not sure what causes this but i tested in chrome (incognito mode to avoid extensions), old edge (not chromium) and chrome iOS via mobile data. all test had the same result.

sorry if this is the wrong place for this but not sure where else to put it. [[User:TomW1605|TomW1605]] ([[User talk:TomW1605|talk]]) 14:44, 21 June 2020 (UTC)

:This problem seems to be common to all comics ending with a question mark: [[2236]], [[2138]], [[2065]], [[1841]], [[1205]]. My best guess is that the url is being interpreted as a query, but since there is nothing after the question mark this results in an error. Whether this is a new error or just hasn't been noticed before I don't know. Renaming the pages without the question mark could work, but would require every reference to these comics on the wiki to be updated. [[User:A(l)Chemist|AlChemist]] ([[User talk:A(l)Chemist|talk]]) 10:07, 22 June 2020 (UTC)

::i think it is new, i recently (not sure when but after 2138 was released) went through the Code Quality series using the links and it worked fine then. i don't think it is being interpreted as a query because the question mark is encoded. i would amazed if it would still interpret this as a query because that would completely defeat the point of encoding the url in the first place. [[User:TomW1605|TomW1605]] ([[User talk:TomW1605|talk]]) 09:35, 22 June 2020 (UTC)

:::here is a full list of broken pages: [[58]], [[111]], [[259]], [[1205]], [[1705]], [[1841]], [[1913]], [[2065]], [[2138]], [[2236]]. i wrote a quick javascript to extract a full list of urls from [[List of all comics (full)]] (then added the recent ones manually, [[explain_xkcd:Community_portal/Technical#List_of_all_comics_incomplete.2Foverflowing|see above]]). then ran a python script to get the content of each page and check if it is broken (with a 2 sec delay to minimise server load) and saved the list if broken ones. [[User:TomW1605|TomW1605]] ([[User talk:TomW1605|talk]]) 13:34, 22 June 2020 (UTC)

:::: Note that you can view the comic by changing the URL from <code>index.php/...</code> to <code>index.php?title=...</code> ([https://www.explainxkcd.com/wiki/index.php?title=58:_Why_Do_You_Love_Me%3F example]). —[[User:Galaktos|Galaktos]] ([[User talk:Galaktos|talk]]) 13:03, 14 May 2021 (UTC)

== "All comics" from left sidebar is not updating ==

https://www.explainxkcd.com/wiki/index.php/List_of_all_comics

[https://imgur.com/a/J287JBz image]

== Attention needed to some List pages ==

I just (mis)clicked on "All Comics", and thought it looked odd.
DGBRTBot needs a prod, or something, given the current months-old state and commented prediction in https://www.explainxkcd.com/wiki/index.php?title=List_of_all_comics&action=history

(Oh, and the [[List of all comics (full)]], which I then checked has a redlinked Category of "Pages where template include size is exceeded" and seems to have been previously given a badly-included "...and everything before #501". Not sure if the first problem is easily solvable, but as I'm here I thought I'd mention it, and you could properly add 1-500 ''and'' 501-1000 to sort the Include Size issue, maybe?)

I could be way off-piste, but as it looks like nobody has noticed anything yet I thought I'd at least raise the issue, and then leave the fixing to someone with a bit more Wiki-Fu..? [[Special:Contributions/162.158.155.120|162.158.155.120]] 20:48, 3 August 2020 (UTC)

:For [[List of all comics]], looks like [[User:DgbrtBOT|DgbrtBOT]] is working again, and [[User:Btx40]] already went back and added the missing entries, so that should be all good now.
:For [[List of all comics (full)]], not sure if I correctly understand what you mean by "''you could properly add 1-500 ''and'' 501-1000 to sort the Include Size issue''"? But I think the "''badly-included '...and everything before #501' ''" you mentioned wasn't so much ''badly-inluded'' – its code looked correct to me – rather, the inclusion makes the page so big that it ''causes'' the page to exceed the "template include-size" limit. See the following Wikipedia articles for more about how this "template include-size" limit works in MediaWiki:
:* {{w|Wikipedia:Template limits#Post-expand include size}}
:* {{w|Wikipedia:Post-expand include size}}
:So ''as a result of'' exceeding the limit, the parser ''excludes'' the template that caused the limit to be exceeded (i.e. it excludes the 1-500 list at the bottom of the page), so as to keep the page under the size limit; and instead of the ''actual'' content, the parser just inserts a ''link'' to the content. And it so happens that in this case, the ''content'' includes the control-characters for constructing the table rows – so because those control characters are excluded along with the content, then the link shows up in the last existing cell of the table, and ''appears'' to be badly-included.
:I'm not sure how to fix it, but some options could be:
:* Somehow reduce the content of the page so that the full list of #1-to-#current doesn't exceed the limit.
:** Each "row" of the table produces about 700 characters in the resulting HTML; around 200 of that is the hidden "create" link (from [[Template:comicsrow]]) that I think ''would'' appear if the comic's page didn't exist yet. I would say that at this point, since all the comics already have pages, then that "create" link is only useful for the most recent comic, and could probably be omitted to significantly reduce the size of the page.
:*** (Actually, it looks like DgbrtBOT might automatically create the page for each new comic, so the "create" link might not be needed ''at all'' anymore.)
:** There are some other elements that could be removed from each table row to save space, such as the <code>title</code> attributes of the links, etc.
:** Not sure if all of that would create enough headroom for the 1-500 list though?
:* Increase <code>$wgMaxArticleSize</code> on the server? ([https://www.mediawiki.org/wiki/Manual:$wgMaxArticleSize See here].)
:** Not sure of the risks of that; and in any case, it's only that one page that currently exceeds the limit, so may not be worth it.
:For now, I've added a note to the page explaining that 1-500 are missing and why, and I've tweaked the bottom of the table to make the link to 1-500 a bit more presentable in the meantime.
:– [[User:Yfmcpxpj|Yfmcpxpj]] ([[User talk:Yfmcpxpj|talk]]) 06:41, 3 October 2020 (UTC)

== Strange error—maybe edit conflict? ==

I happened to be looking at my edit history, and I noticed that something insane happened back in June: I made an edit to [[2319: Large Number Formats]], and it somehow combined my edit with someone else's. The entirety of my edit (as I crafted it) was confined to the article's categories; I added one and put the set in alphabetical order. But the edit, {{diff|193595|as it was logged}}, is a massive alteration, with all sorts of questionable changes. It was (rightly, I think) undone by [[User:Jkrstrt|Jkrstrt]] a couple days later. Did I somehow overlook an edit-conflict error and accept some (now anonymous) users edit? I can see myself making some kind of oversight at that time of night, but it seems antithetical to the wiki process to have an edit misattributed in this way. (I certainly don't like having that change connected with my name, but I also wonder how this intersects with important issues of public ownership integral to wiki communities.) I'd appreciate any insight fellow editors could provide. [[User:Jameslucas|jameslucas]] ([[User talk:Jameslucas|" "]] / [[Special:Contributions/Jameslucas|+]]) 22:24, 3 August 2020 (UTC)
:As I'm passing through, I shall note that I'm the IP that added the "(The 1971 transition[...]" paragraph you see 'added' there. It was actually part of a larger edite that was later (than my edit, earlier than yours) understandably removed for being irrelevent. During this {{diff|193424|5-day-earlier revision}}. But I had absolutely nothing to do with pretty much every other change in your above-logged diff, SFAICS from a quick skim, so honestly don't know why it features there. But hope this info is useful. [[Special:Contributions/162.158.159.66|162.158.159.66]] 23:05, 3 August 2020 (UTC)
::That's actually quite helpful because it caused me to go look at older versions of the article. It looks like my edit {{diff|193595&oldid=193386|used a very early version as a starting point}} (thereby reverting all changes made later). My best guess is that I had gone back to an old version because Randall changed this comic after it was published and was trying to convince myself that I wasn't crazy. No, not crazy, but spacey. Wikipedia puts a big red warning across the page when you're ending an old version, and this wiki uses only a bit of bold text—that apparently wasn't enough to draw my attention. Thanks! [[User:Jameslucas|jameslucas]] ([[User talk:Jameslucas|" "]] / [[Special:Contributions/Jameslucas|+]]) 01:33, 4 August 2020 (UTC)

== Unable to view "what if?" page ==

The link to the page for the [[what if?]] blog displays an error: "No input file specified." [[User:JBYoshi|JBYoshi]] ([[User talk:JBYoshi|talk]]) 03:38, 21 August 2020 (UTC)

:This also happens to me on [[1205: Is It Worth the Time?]] Must be something with the ?s in the titles. [[Special:Contributions/172.69.22.66|172.69.22.66]] 15:46, 25 August 2020 (UTC)

::I've noticed that as well. I made a page in my userspace that redirects to the what if page, and for some reason that seems to work. ([[User:Blue screen of life/whatiflink|here is the link to the page]]) [[User:Blue screen of life|Blue screen of life]] ([[User talk:Blue screen of life|talk]]) 20:09, 31 August 2020 (UTC)

:::I have also noticed this but it is not just on pages with questions marks. Both [[259]] and [[1705]] show the same thing. A full list (as of 22 June 2020) of the ones i found is in the last reply to my report found here [[#2138_page_issues]] [[User:TomW1605|TomW1605]] ([[User talk:TomW1605|talk]]) 12:20, 22 September 2020 (UTC)

::::Both [[259]] and [[1705]] have an ({{w|E acute|e-with-accute-accent}}, Unicode U+00E9) in the URL, so for those pages, I wonder if that has anything to do with it?
::::For the "what if?" page, I had recently added a redirect from [[what if (blog)]] to get to it, and the [[What If]] disambiguation page has been updated with it, so at least we can get to it that way; and for the comic explanations, at least we can get to them by linking to their number-redirects (as [[58]] instead of [[58: Why Do You Love Me?]]); but not sure how to fix it overall. At the following page, it suggests tweaking an {{w|Apache HTTP Server|Apache}} {{w|Rewrite engine|rewrite}} directive in {{w|.htaccess}} (or a {{w|Common Gateway Interface|CGI}} setting in {{w|PHP}} if it's running on {{w|Internet Information Services|IIS}}):
::::* https://www.mediawiki.org/wiki/Topic:Vmaw1tu5kkhyon0n
::::So maybe something about that has changed recently? Documentation:
::::* [https://httpd.apache.org/docs/current/mod/mod_rewrite.html#rewriterule Apache mod_rewrite <code>RewriteRule</code> directive]
::::* [https://www.php.net/manual/en/ini.core.php#ini.cgi.force-redirect php.ini <code>cgi.force_redirect</code> directive]
::::Summarizing a few points from [[User talk:SlashMe#Homeopathic Wiki|this related discussion]]:
::::* Only one of the site's [https://explainxkcd.com/wiki/index.php/Special:ListUsers?group=sysop 10 administrators] has made recent edits ([[Special:Contributions/SlashMe|SlashMe]]).
::::* Neither of the site's [https://explainxkcd.com/wiki/index.php/Special:ListUsers?group=bureaucrat 2 bureaucrats] ([[Special:Contributions/Jeff|Jeff]] and [[Special:Contributions/Lcarsos|Lcarsos]]) have made any edits recently.
::::* For admin access to the ''server'' itself, my limited understanding is that [[Special:Contributions/Jeff|Jeff]] might actually own the server, but may have also given admin access to [[Special:Contributions/Dgbrt|Dgbrt]]; however, neither of them have made edits recently.
::::But "most recent edit" might not be a good indicator, so I wonder of some of these folks are still involved in the project?
::::– [[User:Yfmcpxpj|Yfmcpxpj]] ([[User talk:Yfmcpxpj|talk]]) 05:10, 29 September 2020 (UTC)
: Looks like it happens for any page that has a percent-encoding in the title. [[User:PoolloverNathan|PoolloverNathan]]<nowiki>[</nowiki>[[Special:Contributions/PoolloverNathan|s]][[User talk:PoolloverNathan|talk]] [[Wikipedia:WP:SEAOFBLUE|the blue seas]]<nowiki>]</nowiki> 16:32, 16 March 2021 (UTC)

=== Known broken pages ===
(Redirects work, whereas links to the actual page are broken.)

Title containing e-accute-accent:
* [[259]] ↳ [[259: Clichéd Exchanges]] ([https://www.explainxkcd.com/wiki/index.php/Special:WhatLinksHere?target=259:_Clich%C3%A9d_Exchanges What links here])
* [[1705]] ↳ [[1705: Pokémon Go]] ([https://www.explainxkcd.com/wiki/index.php/Special:WhatLinksHere?target=1705:_Pok%C3%A9mon_Go What links here])

Title ending with question mark:
* <del>[[what if (blog)]] ↳ [[what if?]] ([https://www.explainxkcd.com/wiki/index.php/Special:WhatLinksHere?target=What_If%3F What links here])</del> <ins>fixed – content now exists at [[what if]], and [https://www.explainxkcd.com/wiki/index.php?title=Special:WhatLinksHere/what_if&limit=500 broken links] are in the process of being updated (see below)</ins>
* [[58]] ↳ [[58: Why Do You Love Me?]] ([https://www.explainxkcd.com/wiki/index.php/Special:WhatLinksHere?target=58:_Why_Do_You_Love_Me%3F What links here])
* [[111]] ↳ [[111: Firefox and Witchcraft - The Connection?]] ([https://www.explainxkcd.com/wiki/index.php/Special:WhatLinksHere?target=111:_Firefox_and_Witchcraft_-_The_Connection%3F What links here])
* [[1205]] ↳ [[1205: Is It Worth the Time?]] ([https://www.explainxkcd.com/wiki/index.php/Special:WhatLinksHere?target=1205:_Is_It_Worth_the_Time%3F What links here])
* [[1841]] ↳ [[1841: Who?]] ([https://www.explainxkcd.com/wiki/index.php/Special:WhatLinksHere?target=1841:_Who%3F What links here])
* [[1913]] ↳ [[1913: A ?]] ([https://www.explainxkcd.com/wiki/index.php/Special:WhatLinksHere?target=1913:_A_%3F What links here])
* [[2065]] ↳ [[2065: Who Sends the First Text?]] ([https://www.explainxkcd.com/wiki/index.php/Special:WhatLinksHere?target=2065:_Who_Sends_the_First_Text%3F What links here])
* [[2138]] ↳ [[2138: Wanna See the Code?]] ([https://www.explainxkcd.com/wiki/index.php/Special:WhatLinksHere?target=2138:_Wanna_See_the_Code%3F What links here])
* [[2236]] ↳ [[2236: Is it Christmas?]] ([https://www.explainxkcd.com/wiki/index.php/Special:WhatLinksHere?target=2236:_Is_it_Christmas%3F What links here])

=== Moved ===
I moved the [[what if?]] page to the [[what if (blog)]] page which I then changed to simply [[what if]] to fix this issue and because anyone new to this site would type that any way to see it. — [[User:Sqrt-1|The 𝗦𝗾𝗿𝘁-𝟭]] [[User talk:Sqrt-1|talk]] [[Special:Contributions/Sqrt-1|stalk]] 06:47, 29 September 2020 (UTC)

:Still trying to wrap my head around it – so just to summarize, we currently have:
:
:* '''[[whatif]]''' ([https://www.explainxkcd.com/wiki/index.php?title=whatif&redirect=no no-redirect link])
:** ↳ ''redirects to'' '''[[what if?]]''' (see below)
:* '''[[What If?]]''' – page broken ([https://www.explainxkcd.com/wiki/index.php?title=What_If%3F&redirect=no no-redirect link]) ([https://www.explainxkcd.com/wiki/index.php/Special:WhatLinksHere?target=What_If%3F What links here])
:** ↳ ''also redirects to'' '''[[what if?]]''' – page broken ([https://www.explainxkcd.com/wiki/index.php?title=what_if%3F&redirect=no no-redirect link]) ([https://www.explainxkcd.com/wiki/index.php/Special:WhatLinksHere?target=what_if%3F What links here])
:*** ↳ ''redirects to'' '''[[what if]] – actual content'''
:*** ''content manually moved from'' ([https://www.explainxkcd.com/wiki/index.php?title=what_if%3F&diff=198070&oldid=197859 diff]) '''[[what if?]]''' ''to'' ([https://www.explainxkcd.com/wiki/index.php?title=what_if&diff=198071&oldid=197486 diff]) '''[[what if (blog)]]''' ([https://www.explainxkcd.com/wiki/index.php?title=what_if_(blog)&redirect=no no-redirect link]) (''[https://www.explainxkcd.com/wiki/index.php?title=what_if%3F&action=history previous revision history] remains at'' '''[[what if?]]''')
:**** ⇒ ''moved to'' '''[[what if]] – actual content'''
:
:For completeness, we also have...
:
:* '''[[what if book]]''' ([https://www.explainxkcd.com/wiki/index.php?title=what_if_book&redirect=no no-redirect link])
:** ↳ ''redirects to'' '''[[what if#The book]] – actual content'''
:** Suggestion: for consistency, also add a '''[[what if (book)]]''' page that redirects here?
:
:...and the disambiguation page...
:
:* '''[[What If]]''' ([https://www.explainxkcd.com/wiki/index.php?title=What_If&redirect=no no-redirect link])
:** ⇒ ''moved to'' '''[[What If (disambiguation)]]''' – disambiguation page
:*** ''links to'' '''[[17: What If]]''' (↲ '''[[17]]''' redirects here ([https://www.explainxkcd.com/wiki/index.php?title=17&redirect=no no-redirect link]))
:*** ''links to'' '''[[what if]] – actual content'''
:*** Suggestion: mention the ''book'' here as well, and link to its section in the [[what if]] page?
:
:...and these troubleshooting pages from [[User:Blue screen of life]]:
:
:* '''[[User:Blue screen of life/redirecttest]]''' – test page ([https://www.explainxkcd.com/wiki/index.php?title=User:Blue_screen_of_life/redirecttest&redirect=no no-redirect link])
:** ⇒ ''moved to'' '''[[User:Blue screen of life/whatiflink]]''' – test page ([https://www.explainxkcd.com/wiki/index.php?title=User:Blue_screen_of_life/whatiflink&redirect=no no-redirect link])
:*** ↳ ''redirects to'' '''[[What If?]]''' (see above)
:
:Given that the actual content of the "what if?" article now lives at '''[[what if]]''', I've started updating pages <ins>(except for Talk pages)</ins> to link directly there instead of the other redirect pages. All that's left to do are pages that link to the '''[[what if?]]''' redirect-page (which is broken). <del>Its [https://www.explainxkcd.com/wiki/index.php/Special:WhatLinksHere/what_if%3F "What links here"] special page is broken too, so it's difficult to find what pages link there – but now that it redirects to the [[what if]] page, you can see them indirectly from ''that'' page's [https://www.explainxkcd.com/wiki/index.php?title=Special:WhatLinksHere/what_if&limit=500 "What links here"] special page.</del> <ins>[https://www.explainxkcd.com/wiki/index.php/Special:WhatLinksHere?target=what_if%3F These] are the pages that still link there.</ins> There are still a lot of them to go.
:
:Also, should the following redirect-pages be simplified to have them redirect straight to the new [[what if]] page, instead of redirecting through the intermediate '''[[what if?]]''' page (which itself redirects there anyway)?
:* '''[[whatif]]'''
:* '''[[What If?]]'''
:– [[User:Yfmcpxpj|Yfmcpxpj]] ([[User talk:Yfmcpxpj|talk]]) 17:20, 29 September 2020 (UTC)
:: Fixed the double redirects, don't ask me why we have so many pages for the same thing. [[User:PoolloverNathan|PoolloverNathan]]<nowiki>[</nowiki>[[Special:Contributions/PoolloverNathan|s]][[User talk:PoolloverNathan|talk]] [[Wikipedia:WP:SEAOFBLUE|the blue seas]]<nowiki>]</nowiki> 16:29, 16 March 2021 (UTC)

== Discussion not displaying with comic ==

I am using FireFox on a Win10 machine. When I come to the site I can see the comic, explanation and transcript. But the discussion section is hidden. Even when logged in.

Any ideas?

: You say "when I come to the site". If the address bar says you are on Main_Page and you see the heading "Latest comic", then it's simply working as designed. Above the comic, click on "Go to this comic explanation" and you will see the comic plus discussion.

: Also, Steve, please sign your comments every time, with four tildes. That expands into your user name and a timestamp. Like this -- [[User:JohnB|JohnB]] ([[User talk:JohnB|talk]]) 10:10, 29 September 2020 (UTC)

== Random page sometimes takes me to an invalid address ==

Sometimes, when clicking on "Random page" in the left sidebar, the site will be blank apart from the text "No input file specified. ".

An example of such an URL is: https://www.explainxkcd.com/wiki/index.php/111:_Firefox_and_Witchcraft_-_The_Connection%3F

:I've noticed this happens for ''all'' URLs to comics that end in a question mark (or possibly any special character). Interestingly, this doesn't happen if you go to the comic from the search bar. [[User:Danish|Danish]] ([[User talk:Danish|talk]]) 23:04, 27 January 2021 (UTC)

== Bug on the main page ==

Bug Enviroment(Might work on other enviroments):
Ubuntu 20.04LTS
Firefox85.0
2021.2.7

Bug:
The front page reads: `Welcome, Main Page, to explain xkcd!` with `Main Page` formatted as a username,can someone fix this?

[[User:Xkcdjerry|Xkcdjerry]] ([[User talk:Xkcdjerry|talk]]) 09:48, 7 February 2021 (UTC)

== Occasional error via Cloudflare ==
Just a note that I'm getting Cloudflare errors of "origin not reachable" (sounds wrong to me, in my head it should be 'destination', but never mind) three times now in the last ten to fifteen minutes - of maybe a dozen general site-requests.

I've also been getting seemingly .CSSless formatted pages over the past few days, which I've been putting down to slightly dodgy wifi at my end (not unknown) but if I'm getting Cloudflare's error cleanly then perhaps it's been entirely upstream/downstream/however-you'd-describe-the-Explain-server. (Obviously CSS resource requests, as with images, are additional HTTP calls, but I still lump it into the single site-request ''per page'' in my 'dozen' estimate above. No obviously lost images, though, in incomplete pages - not that can't be explained by .CSS non-following, anyway.)

I had copy-buffered some of the exact info, but due to incompetence I recopied over it before coming here. If it happens again, I'll try to bring it over here. But (the way these things go) maybe it won't. FYI, though. [[Special:Contributions/141.101.98.52|141.101.98.52]] 12:04, 5 March 2021 (UTC)
: Not a Cloudfare error (looks like an error of the actual explainxkcd server) but every now and then (like just a few minutes ago) I get an error page that generally goes away if I immediately refresh. To whit:
Service Unavailable
The server is temporarily unable to service your request due to maintenance downtime or capacity problems. Please try again later.

Additionally, a 503 Service Unavailable error was encountered while trying to use an ErrorDocument to handle the request.
: Not really a problem (occasionally happened while submitting an exit, and I have to confirm to the browser that I wish to repost the data, but this particular copied instance was through a more 'read-only' link-click, like most of the instances) but... in case someone finds this to be new and useful information... here you are! [[Special:Contributions/141.101.98.192|141.101.98.192]] 03:45, 12 March 2021 (UTC)
:OP, here, of the above 503 error report/casual mention. Obviously this is the same message that happened for an ''extended'' period of time over a number of days, but I've only just happened to find the site responding again and have not yet looked to see if it is explained as the same or different cause to the old intermittent issues (at root). I hope things are resolved from the major outage (server quota? bill payments? renewal/reconfiguration blips?) but wonder if I should report any future minor outages? I'm still smarting from the total loss of the fora.xkcd.com platform, a few years back, and while I'm not active enough here to consider a proper login (lurking as a freeloading anon-IP is good enough, usually, for my intellectual enjoyment, with all due apologies) I did have a slight pang of emptiness while it was out-of-order. [[Special:Contributions/141.101.99.79|141.101.99.79]] 15:48, 16 June 2021 (UTC)

== Add TemplateData ==

Add the {{mw|Extension:TemplateData|TemplateData}} extension to allow setting data for templates. This will help editors because they will be able to see the data of templates.

== MediaWiki 1.30.0?! ==

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)

== Uptime ==
Did the website just go down? [[User:Beanie|Beanie]] [[User talk:Beanie|talk]] 13:06, 28 May 2021 (UTC)

It was definitely down this weekend!
https://www.reddit.com/r/xkcd/comments/nxrm65
[[User:ProphetZarquon|ProphetZarquon]] ([[User talk:ProphetZarquon|talk]]) 16:21, 15 June 2021 (UTC)

== Comic template lappend breaks for standalone comic links ==

For example, https://xkcd.com/blue_eyes.html is changed to https://xkcd.com/blue_eyes.html/ which isn't valid [[Special:Contributions/172.69.90.15|172.69.90.15]] 15:51, 13 October 2021 (UTC)

Template here, I think it needs to be changed to solve this https://www.explainxkcd.com/wiki/index.php/Template:comic

exkcd page here https://www.explainxkcd.com/wiki/index.php/Blue_Eyes

== May not be your problem, but FYI. ==

My typcal setup: Android tablet, with Chrome for Android (latest update), but also Firefox for Android (ditto), using default Gboard (likewise) for input.

Occasionally (notably within the last few weeks/maybe a month or so), when going in to edit an explainxkcd page through Chrome (it's how I divide up my browsing), I'm getting the cursor in the textarea box which ''can'' be used to Cut/Copy/Paste (as applicable and useful), but the on-screen keyboard isn't popping up. Page is fully loaded (can be refreshed, doesn't have the "stop loading" alternative), can go back (page viewing) and try to go back to the page editor (often to same result). Sitting and waiting doesn't pop the keyboard up, either (sat there for minutes). Happens both on home wifi and mobile connection.

If I transfer my attentions to the page to Firefox (copy URL, to use there... but I don't use that by default for expxkcd stuff) there's no problem, but then if I come back to Chrome again it seems to start working again ''anyway'' so not sure if it's just avoiding/flushing a transient problem that would also initially crop up with Firefox if I used that more.

Because editing is a different (mobile-optimised) process on Wikipedia and I can't be sure about any the equivalence of any other wiki out there (and it doesn't happen with anything else I regularly key into on Chrome) it's not something I've reproduced outwith this site, and of course desktop page-editing doesn't require touch-screen keyboard because there's a physical one.

Not getting much feedback with Chrome (really can't get on with their bugrep processes, it's too huge a project to make headway, IME), not even tried to pester the Gboard team and I've not ''seen'' anything said on here about this being a site-issue (not sure how it could be, as it's outside the remit of the core web-page rendering process and more an Android or App level of incompetence), but I thought I'd make a note of it here for future reference. Make of it what you will. Annoying but not game-breaking. And I just wanted to vent a little. [[Special:Contributions/172.70.162.147|172.70.162.147]] 16:54, 25 December 2021 (UTC)

== [[special:interwiki]] ==

where'd it go? [[Special:Contributions/172.69.68.200|172.69.68.200]] 05:07, 7 January 2022 (UTC)

== Please update MediaWiki + AbuseFilter ==

Seriously. Many scripts and such built for modern, supported versions of MW do not work here because it is so unbelievably undated. PinkAmpersand above basically covers the reason why. I also highly recommend adding the extension AbuseFilter (https://www.mediawiki.org/wiki/Extension:AbuseFilter) as it immensely makes removing vandalism easier (by straight up disallowing or blocking those that do, esp if it's like the current formulaic massive-replacement vandalism.) [[User:CRLF|CRLF]] ([[User talk:CRLF|talk]]) 00:48, 21 May 2022 (UTC)

:Ditto. I feel like the main problem is that the sole person who has access to the backend either doesn't have time to update, doesn't have interest, or doesn't have the technical knowledge necessary. But yes, I agree - updating and installing an extension to help control vandalism would help this wiki tremendously. [[User:Obwankenobi|Obwankenobi]] ([[User talk:Obwankenobi|talk]]) 20:09, 9 February 2024 (UTC)

== ↑ ? ==

Why do some pages have ↑ at the very start? They can all be spotted by searching ↑
Is it a technical thing, vandalism, some sort of glitch? Maybe I'm just uninformed or being an idiot.
:Edit logs tell me that an IP user manually reverting vandalism somehow inserted one or more extra characters while manually reverting vandalism. '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 13:59, 22 May 2022 (UTC)
::Should it be removed? It's not necessary and might be confusing for screenreaders... [[User:Mushrooms|Mushrooms]] ([[User talk:Mushrooms|talk]]) 09:00, 23 May 2022 (UTC)
:::Maybe not en-mass, I'd say. But I've dove in to delete a rogue leading <nowiki> </nowiki> tag left from a part of a prior vandalism (likewise, just before the {{template|comic}}-element) and I've promised myself that I'll remove any more that I spot (and now that arrow) in any future whole-page edit I make. Plus a small shopping-list of inessential but useful edits like making {{template|Citation needed}}s flow better when they're mispunctuated/etc.
:::But that's my solitary opinion. I'm sure hunting out and squishing this isn't a problem at all. I'm just balancing my own peculiar brand of OCD with what is somehow my also my own version of casual apathy towards other details. (Also, it probably looks better for a named account of recognised good standing to start editing potentially hundreds of pages in a session, rather than myself... potentially indistinguishable from the IP who seems to relish worn out memes in a general page-trashing.) [[Special:Contributions/162.158.159.121|162.158.159.121]] 12:20, 23 May 2022 (UTC)

== Is there anything else we can do to prevent vandalism? ==

There's been quite a significant uptick in vandalism recently, and I don't feel we have any effective tools to combat it. I believe one of the biggest issues here is due to the way logged-out editing works on this wiki. Blocks are completely ineffective at slowing vandals, and IP editors can vandalize with basically nothing we can do to thwart them other than revert-warring. '''Is there a better way?'''

There's been some discussion of installing AbuseFilter, but I'm not sure anything became of it. We could disable logged-out editing, but that would likely be counterproductive as we get lots of legitimate contributions from logged-out users. If there's a way to switch to location-based IPs, we could rangeblock problematic users as well as proxies. Does anyone have any ideas? [[Special:Contributions/162.158.78.145|162.158.78.145]] 16:11, 1 June 2022 (UTC)
:I'm sort of making server side changes via telegraph so an extension is probably going to take a while to get installed. Takes a bunch of emails and followups to get single variables changed in the mediawiki settings file. There is an email verification option, and some edit frequency variables that could be set to make spam more time consuming. Don't love range blocks but wouldn't mind getting the CDN IPs dealt with so we can actually use the IP bans again. '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 17:16, 1 June 2022 (UTC)
::I'm very grateful that you're working on changes under the hood. What do you think is the best way to deal with disruption in the meantime? [[User:Vandalbane|Vandalbane]] ([[User talk:Vandalbane|talk]]) 17:19, 1 June 2022 (UTC)
:::Could borrow a patrol bot like the ones people on main wikipedia have, could ask around. '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 18:53, 1 June 2022 (UTC)
::::There's not really a drop-in solution that you can use, especially since the server's MediaWiki version is not in sync with Wikipedia's (so a lot of the APIs etc have completely changed; when initially reverting vandalism I tried importing some scripts from enwiki but they failed as a result), but also because the bots have gotten pretty complex (using machine learning provided by the Wikimedia Foundation, for example). [[User:CRLF|CRLF]] ([[User talk:CRLF|talk]]) 03:56, 2 June 2022 (UTC)
:::::Oh I do notice mediawiki hasn't been upgraded in a while. Looks like new version of mediawiki should be dropping extremely imminently, would be nice timing for an upgrade '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 04:45, 2 June 2022 (UTC)

== Rollback ==

Does the rollback permission exist on this wiki? [[User:Vandalbane|Vandalbane]] ([[User talk:Vandalbane|talk]]) 17:00, 1 June 2022 (UTC)
:The rollback permission of course exists but there's no group called "rollbacker" like you'd find on Wikipedia (limited to admins). You'd need the sysadmin to change the configuration to add one, which as established is not really an option right now. [[User:CRLF|CRLF]] ([[User talk:CRLF|talk]]) 03:58, 2 June 2022 (UTC)

== What happened to custom JavaScript? ==

I put some code in <code>[[User:Some user/common.js]]</code>, but it is not alerting 'hi' every time I load a page. Why can't we execute JavaScript anymore? Is it in response to the [[Project:Crap|crapping]] incident? [[User:Some user|Some user]] ([[User talk:Some user|talk]]) 21:16, 27 June 2022 (UTC)
:Entirely because of that, yeah. '''[[User:Davidy22|{{Color|#707|David}}y²²]]'''[[User talk:Davidy22|<tt>[talk]</tt>]] 04:51, 28 June 2022 (UTC)

== My IP ==

Why is my IP address a Cloudflare address in Norway? Is this a joke of some kind that I'm missing?

Other wikis like Wikipedia are showing me my actual IP when I go to [[Special:MyContributions]], so I suspect this is a wiki misconfiguration. It changed again while I was typing this. [[Special:Contributions/162.158.222.194|162.158.222.194]] 16:55, 19 November 2022 (UTC)
:All IPs (as this one will be) are from Cloudflare gateway IPs, because that's the default IP that the Wiki understands as the source. Cloudflare mediates all the traffic, and perhaps to some advantage (not being privvy to the logs, I can only guess how much it insulates the true server from extreme problems, but I bet it does in some way).
:There have been suggestions before to change some setting (in the MediaWiki implementation? ...can't recall exactly) to have it pick up and use the IP that the gateway reports (in its meta-request) was the origin, but that's not been enacted for Idunnowhat reason.
:Because the black-box that is the Cloudflare traffic shapes in various ways, you will find that a single user will jump around 'apparent' IPs, and I've also been in the relatively embarassing situation of replying to another IP's info and finding that I've registered on the exact same IP so that it looks like I'm stooging myself, or something.
:On the whole, though, it's a harmless quirk. And given the trivial nature of deliberately spoofing origins (even on top of assuming you get an effectively static NAT from your ISP in the first place) I don't personally see it as a problem to 'solve' this. But neither would I complain if the 'fix' were implemented if this query reminds someone that they ''were'' going to try and do the necessary tweak.
:As a lay-answer, I hope that fills you in a little. ''If'' those who have more knowledge/control of the process want to add anything or correct me, I'm sure they'll do so as soon as they can, but here's a reply to keep you going for now... [[Special:Contributions/172.70.85.24|172.70.85.24]] 01:19, 20 November 2022 (UTC)

==Main page in categories==
{{notice|'''This discussion is marked as duplicate.''' See [[#Main Page|this discussion]].}}
[[Main_Page]] was found wrongly appearing in some newly-created categories, such as [[:Category:Cosmology]]. Could you fix it? --[[User:ColorfulGalaxy|ColorfulGalaxy]] ([[User talk:ColorfulGalaxy|talk]]) 17:49, 12 January 2023 (UTC)
:Never noticed this myself, but I'll take it as read. Before checking myself, I'm wondering if this could be when the main page 'inherits' tags from the Current Comic that it features. And thus solve itself (whilst gaining others) upon a newer Current Comic. (Must surely inherit "Monday Comics"/etc, on schedule every week.)
:If it is that, perhaps the solution lies in the details contained within https://m.mediawiki.org/wiki/Help:Categories#Categories_and_templates_(transcluded_pages)
:Or maybe I'm wrong about it. But I have no rights to edit (thus at least examine the 'code' of) the Main page, to check my snap theory, as with most people. [[Special:Contributions/172.70.162.46|172.70.162.46]] 19:21, 12 January 2023 (UTC)

This happened again in [[:Category:Airplane banner]]. [[User:I27.O.O.I|I27.O.O.I]] ([[User talk:I27.O.O.I|talk]]) 09:00, 28 February 2023 (UTC)
:Yes, and it lasted as long as the latest comic was still one with particular categories. I don't intend to worry about it. If someone goes to a category that interests them and looks at the main page, as temporarily advertised, they're likely to find (as part of it) a comic which is indeed in that category. Doesn't sound like a big problem to me, except for determinin why some cats (e.g. Friday Comics) ''don't'' link to the Main page when they might be expected to...
:(PS, I know for sure that I27.O.O.I isn't the same person as ColofulGalaxy (and various others, beyond even those with the bloomin' obvious "CG" initials or other recent spoofs on the RFC1918 addresses), and I don't think I mind too much, but faking disagreements between your various IDs isn't helping, anyone... smells too much of trying to establish alibis in advance of your next attempt to vandalise the site with stupid stuff. And doesn't impress me, so I doubt it impresses anyone else either. As long as you're just doing sane things, however, I'll accept your little idiosyncracies.) [[Special:Contributions/162.158.74.32|162.158.74.32]] 19:37, 5 March 2023 (UTC)
:(PPS: You left your fingerprint on this latter attempt to 'rescue' [https://www.explainxkcd.com/wiki/index.php?title=Talk:2659:_Unreliable_Connection&curid=25530&diff=307289&oldid=307282 this page]. - Spammer a few minutes before midnight, my IP reversion happened shortly after. A little later "Elisabeth" then re-spammed (modified), then another IP immediately jumps on it to restore it but with the modified undo-summary line clearly indicating that some sort of a game is being played. Please don't, it's not clever.) [[Special:Contributions/172.70.90.34|172.70.90.34]] 02:22, 7 March 2023 (UTC)

This doesn't happen to date categories, but it happens in manually added categories such as [[:Category:Statistics]]. [[User:ColorfulGalaxy|ColorfulGalaxy]] ([[User talk:ColorfulGalaxy|talk]]) 21:49, 27 March 2023 (UTC)

==Cannot create user page==
It 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. [[2659: Unreliable Connection]] ([[Talk:2659: Unreliable Connection|talk]]) 22:56, 26 March 2023 (UTC)
:(Removed alternative text in the link involved, to not hide behind trickery.) I think you know that there's no problem with [[2659: Unreliable Connection]] itself, except that it had become one of several pages targeted for spamming, the only one then locked down, then finding that the spammers just retargeted to its Talk page, etc.
:I'm torn between "not assuming bad faith" and "don't feed the trolls", as competing principles, so I'm spelling out the situation. However much a tribute you might think it could be, I don't think there's a future in having a new username that's directly referencing a comic which has become so frequently seen in the recent history of this wiki's edits.
:Obviously any genuine contributions are more than welcome. So prove me wrong, why don't you? [[Special:Contributions/172.70.91.151|172.70.91.151]] 03:20, 27 March 2023 (UTC)

::Could you help now? [[User:Unreliable Connection|2659: Unreliable Connection]] ([[User talk:Unreliable Connection|talk]]) 09:13, 29 March 2023 (UTC)

: I've created your talk page. I guess that what you intended is to have a backup or mirror page for comic [[2659]]. Am I right? [[User:ColorfulGalaxy|ColorfulGalaxy]] ([[User talk:ColorfulGalaxy|talk]]) 20:16, 2 April 2023 (UTC)

== Fanmade comics ==
A fanmade comic appeared on xkcd. Could you edit the template? [[Special:Contributions/172.69.23.100|172.69.23.100]] 07:21, 28 April 2023 (UTC)
:You're going to have to say more about it, at least for me. Apart from the Sandbox attempt to make a page, I haven't seen the comic you're describing anywhere. Certainly not anywhere official. Link, for our benefit? [[Special:Contributions/172.70.85.66|172.70.85.66]] 10:04, 28 April 2023 (UTC)

==Why doesn't this code block work?==
Does anybody know why the code block at the end of [[Transcript on xkcd|this page]] doesn't work? I've tried everything and it still looks like plain text

== Can't add RSS feed because of pubDate value on 27 Nov 2015 ==

When I try to add the RSS feed in Nextcloud News feed reader I get an error <code>Impossible to convert date : Fri, 27 Nov 2015 17:24:34 Pacific Standard Time</code>.

[https://validator.w3.org/feed/check.cgi?url=https%3A%2F%2Fexplainxkcd.com%2Frss.xml W3C Feed validation] says that <code>pubDate must be an RFC-822 date-time</code> and points "Pacific Standard Time" portion as the cause of the error: <code><pubDate>Fri, 27 Nov 2015 17:24:34 Pacific Standard Time</pubDate></code>. Can you please fix the timestap for this?

== Admin request posted here because of vandalism ==

I can not currently access the admin requests page because it has been vandalized... can someone please protect the latest comic page (2805). There is some pretty childish vandalism going on there right now. Thanks!
:It's not the latest, seems like ALL. I went back to 2804, 2803, jumped back like 15 comics, all the same thing. To me the most offensive part is doing it with a nonsensical image. And why pipe it through Archive somehow? [[User:NiceGuy1|NiceGuy1]] ([[User talk:NiceGuy1|talk]]) 02:33, 24 July 2023 (UTC)
::UGH. the vandals are back at it again... we need to lock xkcd pages @NiceGuy [[Special:Contributions/172.70.39.2|172.70.39.2]] 00:59, 25 July 2023 (UTC)

== Way to contact the site hosters? ==

As many have pointed out the software this wiki runs on is horribly outdated. WikiEditor also isn't here for some reason. Quite a bit of messages here have seen no action. Is there some kind of contact form to reach the hosters? {{unsigned|Aaron Liu|00:36, 10 October 2023}}
: There are various levels of admin who do intervene, as and when jecessary, but I understand that the (active) ones closest to the actual hosting level of intervention are not really ready to do the (increasingly greater) degree of uprooting necessary to get a "working" system to be "marginally better working", by way of that very dangerous middle-ground of potentially being ruined entirely.
: I appreciate and anticipate the counter-arguments regarding letting it go totally unupdated, of course, just I've personally seen enough failures (participated in some, or been the actual invokee, myself) to be very sympathetic to the "if it aint (too) broke, don't fix it" tendency. But that inertia is not the only factor, of course, and the full motivations (or lack of them) of those involved is not for a lowly IP like me to explain, even if I think I know... [[Special:Contributions/172.69.195.42|172.69.195.42]] 01:24, 10 October 2023 (UTC)
:: Have they posted some sort of statement? It also is most definitely not “marginally” better working, compare the source editor to that of Wikipedia and look at topic subscription etc features. Not to mention a lot of security fixes haven’t been added and this version has reached EOL long ago. Updating also would not ruin this entirely…[[User:Aaron Liu|Aaron Liu]] ([[User talk:Aaron Liu|talk]]) 17:22, 12 October 2023 (UTC)
:: Some have also said that quite a bit of assistive scripts for modern versions don’t work. Visual Editor, while horrible, is still easier for new people to get started with. [[User:Aaron Liu|Aaron Liu]] ([[User talk:Aaron Liu|talk]]) 17:23, 12 October 2023 (UTC)
I've found a new reason: This wiki doesn't even allow loading userscripts! [[User:Aaron Liu|Aaron Liu]] ([[User talk:Aaron Liu|talk]]) 01:34, 9 December 2023 (UTC)
:That might actually have been a conscious decition, after a 'certain user' caused chaos here, not so long ago. [[Special:Contributions/162.158.74.25|162.158.74.25]] 19:01, 9 December 2023 (UTC)
::It was about a year and a half ago. I'm sorry, I shouldn't have done that. [[Special:Contributions/172.68.174.143|172.68.174.143]] 06:41, 10 December 2023 (UTC)
::Huh? What happened? Is there a place to request gadgets then? [[User:Aaron Liu|Aaron Liu]] ([[User talk:Aaron Liu|talk]]) 02:04, 10 December 2023 (UTC)
:::"What happened" involved automated vandalism (from someone who been doing it manually, then found the "better way") though I couldn't tell you the exact details, there were automated 'unvandalism's made in response, and theusafBOT/etc does some of that still, in response to non-automated(/off-site scripted) vandalism/errors that it can actually catch before ordinary users (or IPs like me) can. But certainly a certain brand of scripting was turned off to curtail the 'high intensity' vandalism phase.
:::You're more or less in the best place to request things, right here. Whether updates, (re)adding functionalitu or tweaking site settings. Can't tell if those who ''can'' do these things can't or won't do them... Or are actually absent, instead of just not replying. The cavalry has been known to come running in when necessary (e.g. when "what happened" happened) so it could be any manner of non-response (until you get one). Not necessarily the best state of affairs, but better than being confirmed absentees.
::::I ran a bot to mass-edit pages by replacing their content with the word "crap" repeatedly. I was 15 then, and I thought it was funny. It wasn't. [[Special:Contributions/172.68.174.143|172.68.174.143]] 06:41, 10 December 2023 (UTC)
:::As an occasional but infrequent actual-Wikipedia editor, too, I must say that if the Visual Editor is what I currently have to use for that (at least as an anonIP when using a mobile device, which tends to be when I get the urge most) then I like the unaugmented editor here more. Straight up, honest, un'wizarded' interface, where you only have to get used to markup details and not a WYSIWYG editing environment (as well?). Not sure I'd be happy with an even ''more'' 'assistive' script imposed upon me, like I dislike modern generations of Windows (and 'user friendly' linux dists). So can I just ask that functional/visible changes of the kind you seem to be asking for, if made available, aren't overimposed/left as options rather than the default (or only) choice...? Ok, so I can (or would have to) adapt, but I'd rather not. Of course, I have no weight to pull in this matter, it's just an afterthought (even as I wish you good luck with raising an admin's eyebrow, in some useful manner). [[Special:Contributions/141.101.98.135|141.101.98.135]] 05:14, 10 December 2023 (UTC)
::::I am not asking for VisualEditor, which no one likes on Wikipedia either. For some blasted reason they made it edit HTML instead of Wikitext and it’s clunky and loads for a very long time.
::::I’m asking about the WikiEditor, aka Wikipedia’s source editor. In VE, click on the pen next to the publish button and click on “source editing”. That editor makes this one look like freaking Stone Age, syntax highlighting is especially a game-changer. [[User:Aaron Liu|Aaron Liu]] ([[User talk:Aaron Liu|talk]]) 16:03, 12 December 2023 (UTC)
: There’s also the annoying ReCaptcha v2 every single edit… it seems like it would be relatively easy to switch to v3 which only makes you do the challenge when you’ve visited a bit too much. [[User:Aaron Liu|Aaron Liu]] ([[User talk:Aaron Liu|talk]]) 16:32, 12 December 2023 (UTC)
:: Unfortunately, that would make things easier for someone who wanted to do mass vandalism like I did. If it didn't do it every time, someone could still edit quite quickly. [[Special:Contributions/172.68.174.192|172.68.174.192]] 18:32, 12 December 2023 (UTC)
::Well, I can tell you that it doesn't always demand that I fulfil more than a tickbox (most trouble I have is when it fails to connect to give me the tickbox (or respond with anything useful when I do), for which I'm forced into one or more Previews until it will. When it ''does'' ask me to do something about it, I do often get forced through two or more request to identify traffic lights, motorbikes, stairways, bridges, hills, tractors, buses, etc, etc, etc... But I think that's more the Tesla-training Algorithm being nust greedy for my attention than the Robot-sentry having a less casual attitude to my attempt to edit. (I believe I'm on a usually untroublesome source IP/Cloudflare gateway, but it could also depend on how many others try to do things via (part of) the same route. Very, very rarely I get Google Search requesting something similar of me ((It: "You have made a lot of searches", me: "Of course I'll have play your little game, but this is my first lookup today...")), which I'm sure isn't Cloudflared, so it might reach back to my ISP's gateway and what fellow users are currently getting up to.)
::As for the guy above (and you, Liu), can't speak for how well or badly others on your own 'choice' of gateways behave. Or yourselves. Luck of the draw? For the first part, at least. [[Special:Contributions/172.69.195.174|172.69.195.174]] 20:31, 12 December 2023 (UTC)
:::MediaWiki 1.40 automatically tags all edits that remove over 90% of page text with "mw-replaced". You could block all edits in mainspace with that tag, either if MediaWiki has it or through the AbuseFilter extension. While I can complete the CAPTCHAs, it's very annoying to need to Captcha every edit on a place where the main focus is edits. [[User:Aaron Liu|Aaron Liu]] ([[User talk:Aaron Liu|talk]]) 03:06, 13 December 2023 (UTC)
:::Plus, v3 doesn't just do nothing. It tracks how your cursor moves to see if it's robotic, while v2 annoyingly gives you the challenge every time. [[User:Aaron Liu|Aaron Liu]] ([[User talk:Aaron Liu|talk]]) 20:01, 8 January 2024 (UTC)
::::Presumably for touchscreen control (like mine, right this moment), it does something else than track a nonexistent mouse-pointer's passage across the monitored elements of the display... ;) [[Special:Contributions/172.70.90.190|172.70.90.190]] 12:26, 9 January 2024 (UTC)
::There are a few MediaWiki plugins that help keep vandalism/spam under control without requiring users to solve a Captcha every time they make an edit. I use https://www.mediawiki.org/wiki/Extension:Moderation on the wiki I maintain, and it works very well. However, it does require that there be enough active moderators to approve edits, as it basically requires every single edit to be approved before it's posted. Thus, it also introduces some "lag" between when stuff is written and when it can be seen by others. I think it could work if the extension could be installed (I'm not even sure if it's supported on this version of MediaWiki) and if a good list of moderators could be put together. [[User:Obwankenobi|Obwankenobi]] ([[User talk:Obwankenobi|talk]]) 20:02, 9 February 2024 (UTC)
:::I disagree with requiring edits to be approved. Unless we have extremely high vandalism, just filtering out the above tags I mentioned and using ReCAPTCHA v3 would be enough. [[User:Aaron Liu|Aaron Liu]] ([[User talk:Aaron Liu|talk]]) 23:16, 16 February 2024 (UTC)
::::Ok, fair point. However, that wouldn't stop human vandalism, just vandalism from bots. I'm not sure how much human vandalism there is, though, so it might not even be a problem. [[User:Obwankenobi|Obwankenobi]] ([[User talk:Obwankenobi|talk]]) 12:35, 22 February 2024 (UTC)
:::::It's hard (for us 'civvies') to know how much bot-vandalism is stopped but [https://www.explainxkcd.com/wiki/index.php?title=Special:Log/newusers&offset=&limit=500&type=newusers&user= probably a lot], most of which we never see, with [https://www.explainxkcd.com/wiki/index.php?title=2503:_Memo_Spike_Connector&diff=335487&oldid=335486 occasional ones] we might see having be dealt with. (I'm guessing these things are rare (temporarily-)successful 'bots, because flesh-and-blood vandals wouldn't be occasionally doing essentially the same insta-reverted thing on a thematically-small set of pages, over several ''years'' without moving on. It has to be a lucky unattended script-based effort that just keeps trying the same things over and over with an easily revertible but tangible result happening only infrequently.)
:::::More obvious human vandalism tends to rumble on, with occasionally a spate of it as someone gets short-term kicks for it. Though some of them seem may repeat themself after a break. Friendly humans and friendly 'bots both tend to provide the main anti-vandalism responses fairly quickly, though, depending upon what kind of a mess they caused. I've seen worse places, definitely, and it's by no means a losing battle against chaos, just regular skermishes.
:::::Not wanting to tempt fate, of course. I guarantee that there'll be some fool that takes all this as a challenge, so I just have to trust to the Good Guys keeping on keeping on. [[Special:Contributions/172.70.90.71|172.70.90.71]] 14:21, 22 February 2024 (UTC)

heyo, is there a way to add actual citations to explainxkcd instead of the template citation needed? couldn't find anything, but i'm pretty new here - thanks in advance. [[User:Nigga|Nigga]] ([[User talk:Nigga|talk]]) 21:47, 17 March 2024 (UTC)
:Not that I have much faith in your usernae lasting long (you're 'that guy', aren't you? ...in which case you know anyway), but for the sake of anyone else who needs to know:
:*If you mean "add an actual 'citation needed' tag", then it's {{template|Actual citation needed}} that you'll use.
:*If you mean "add an actual citation link to somewhere", then:
:** Link to URLs with [].
:*** A link such as [<url>] will give you a superscript-number link, which isn't pretty, IMO.
:*** A link such as [<url> <text>] (that's a space between the two) will link <text> to the URL, just work it into the sentence you're writing, fairly easy
:** Link to internal (or cross-wiki) pages with [[]].
:*** [[<page title>]] will make a literal link to <page title>.
:*** [[<page title>|<text>]] (with a pipe) is how you make the <text> your link.
:** You can use the last to link specifically to wikipedia's cross-site format, but for that it's best to use {{template|w}}
:*** <nowiki>{{w|<page title>}}</nowiki> (w-pipe...) uses the page title
:**** It will use the link as if the first character is uppercase, so you don't need to capitalise that. Other case-sensitivity is preserved.
:**** <nowiki>{{w|<singular page title>}}s</nowiki> will link the obvious pluralisation of the page title, just to save you effort
:*** <nowiki>{{w|<page title>|<text>}}</nowiki> (w-pipe and pipe) lets you use entirely alternate text.
:** There's also templates that shortcut (or make easier on the eye, or add appropriate warnings) for some other commonly referenced external sites, from xkcd's own what-if to TVTropes.
:...hope that helps everyone that doesn't already know these few simple bits as relate to wikis in general or this wiki in particular. [[Special:Contributions/172.71.242.218|172.71.242.218]] 22:24, 17 March 2024 (UTC)

== Confirmation Email Bug ==

Hi. I've been trying to get my email confirmed so that I can get pinged when pages are edited, but I just can't find it, even after trying multiple times. I use Gmail, and yes, I have checked my spam folder. Has anyone else had this issue? EDIT: I see that others have had this issue, but the admins haven't done any action to solve it, except for one sarcastic comment by Davidy22 back in 2014. [[User:42.book.addict|42.book.addict]] ([[User talk:42.book.addict|talk]]) 00:43, 12 April 2024 (UTC)

== Lack of Userpage ==

Hey, I joined a few years ago, but I still do not have a Userpage. Can you make one for me? I do not have the permission to do so. [[User:GreyFox|GreyFox]] ([[User talk:GreyFox|talk]]) 22:47, 15 May 2024 (UTC)
:This is actually your very first post, after joining a bit more than a year ago ("18:35, 14 November 2023 User account GreyFox (talk | contribs) was created"). I'm sure someone can oblige (not me, for obvious reasons), but you've not done much to contribute (at least under this account), which would have then eventually brought you to the point where you ''can'' just self-create your Userpages/etc. So your request is a bit out of the blue.
:Just so long as we all know where we stand, though. [[Special:Contributions/172.69.194.227|172.69.194.227]] 09:42, 16 May 2024 (UTC)
::Oh, thanks! Do you know the exact number of edits I need to create it?
:::50 to be autoconfirmed. Also, please sign your comments. [[User:42.book.addict|42.book.addict]] ([[User talk:42.book.addict|talk]]) 15:23, 16 May 2024 (UTC)

== server errors ==
is anyone else constantly getting 503 errors? [[user talk:lettherebedarklight|youtu.be/miLcaqq2Zpk]] 17:14, 21 May 2024 (UTC)
:yup, been seeing those all the time. Also seeing that the server is down a lot of time-it suggests me to Google for what I’m “looking for” [[User:42.book.addict|42.book.addict]] ([[User talk:42.book.addict|talk]]) 17:18, 21 May 2024 (UTC)
::503s are fairly common (often when I'm in a rush), and have been for... well, certainly years, maybe more than a decade (though more common during major vandalism/anti-vandalism surges). I had, however, noticed a recent blip (during the last day or so) of the Server Down/Try Google page that you refer to, which I haven't seen for a ''long'' time (not really sure when, but maybe five years or so ago). In fact, I probably got Cloudflare 'rejections' more, during aformentioned vandal-overloading.
::Without any access to the admin logs, I can only speculate as to what might be sparking it. But service (notwithstanding the brief page-refusals themselves) seems to be happily unaffected. [[Special:Contributions/172.70.160.249|172.70.160.249]] 20:29, 21 May 2024 (UTC)

== Allow new users to edit their own page ==

I found someone asking if we could change this in the proposals page (Community portal/Proposals: Allow Users to Edit their own talk page if not auto confimed (not a typo)). [[User:PDesbeginner|PDesbeginner]] ([[User talk:PDesbeginner|talk]]) 14:39, 19 June 2024 (UTC)

== Technical difficulties? ==

I keep getting a message that says: "Sorry! This site is experiencing technical difficulties.Try waiting a few minutes and reloading. (Cannot access the database)"
It's happened a lot so I was wondering if there was a specific cause behind it and perhaps a way to fix it.
[[Special:Contributions/172.68.54.65|172.68.54.65]] 00:17, 17 September 2024 (UTC)
:yeah, I’ve been getting those errors too. I can’t even log into my account before it says that there’s an error again. I’ve been steadily receiving them for a couple months, but never like today. From Recent Changes, it doesn’t look like anyone is spamming the wiki, so maybe it’s an attack of some kind. You’ll need to contact the admins who have access to the server and can poke around, but good luck getting [[User:Davidy22]] or [[User:Jeff]] online. [[Special:Contributions/172.69.135.130|172.69.135.130]] 17:16, 17 September 2024 (UTC)
::update: I’ve been poking around a lot of websites, trying to see if the website is being attacked. The websites all say that the server is down. I’ll try to ask Jeff on this and pray that he checks his email. [[Special:Contributions/172.69.135.129|172.69.135.129]] 17:21, 17 September 2024 (UTC)

== the site is collapsing ==
503's are to be expected, but i've got them and the "Sorry! This site is experiencing technical difficulties. Try waiting a few minutes and reloading." error way, way too much. it's actually getting really hard to edit stuff because of them. [[user talk:lettherebedarklight|youtu.be/miLcaqq2Zpk]] 01:58, 19 September 2024 (UTC)
:heck, i just got a 503 when posting this topic. also, load times are noticeably longer. and i'm getting "loss of session" errors when i try to edit... [[user talk:lettherebedarklight|youtu.be/miLcaqq2Zpk]] 02:02, 19 September 2024 (UTC)
::I’ve messaged Davidy22 and Jeff about it, hopefully they see it and reply. It looks fine right now, appears that it works horribly at times and fine later. Due to the on-off nature of it, I would suspect DDoS attacks, as a 503 error means that the server can’t process the request, which occurs with DDoS attacks. [[User:42.book.addict|42.book.addict]] ([[User talk:42.book.addict|talk]]) 21:37, 19 September 2024 (UTC)
:::update: I’ve made a Reddit post, as I’ve seen Davidy22 active on Reddit and respond to older threads on r/xkcd. Hopefully they respond! [[User:42.book.addict|42.book.addict]] ([[User talk:42.book.addict|talk]]) 18:50, 24 September 2024 (UTC)
::::October update: Davidy22 responded to my emails and said that he has emailed Jeff multiple times. Apparently Jeff is ignoring his emails and not responding. I’ve been checking Jeff’s Twitter/X/Whatever once a week and it shows that he uses it semi-regularly. Apparently Jeff is a podcaster too? Anyways, nobody has really responded to me on r/xkcd, so I’m thinking of sending a DM to Jeff via Twitter. I have a to-do list for Jeff listed on my User Page, feel free to give any thoughts, proposals, comments on anything else you want him to do in this thread. [[User:42.book.addict|42.book.addict]] ([[User talk:42.book.addict|talk]]) 18:46, 24 October 2024 (UTC)

== List of All Comics ==

I think that FaviFake and I have accidentally broken the All comics page. When clicked, it brings you to the page List of all comics, which displays the comics 3000-3002 (as of right now) instead of the list of all comics (oops-my bad). How do we fix this? There’s also the page List of all comics (3000-3500), but the TheusafBOT ignores it. Can someone more technical help troubleshoot this problem? Again, sorry for making a muck of things. [[User:42.book.addict|42.book.addict]] ([[User talk:42.book.addict|talk]]) 18:43, 24 October 2024 (UTC)
:Oh I'm sorry, I created a new topic for this and I didn't see this one. I noticed the [[List of all comics (3000-3500)]] today and scheduled it for deletion because we never make such a page until we have exactly 500 comics to put there. Also, the name is wrong, it should say 3001-3500.
:The page [[List of all comics]] is supposed to display comics 3001-3005, not all comics. You might be confusing it with [[List of all comics (full)]], which would work perfectly if [[List of all comics]] displayed the last 3 comics. I have no idea why the bot stopped updating it. Maybe it will work now that the wrong page is scheduled for deletion? [[User:FaviFake|FaviFake]] ([[User talk:FaviFake|talk]]) 05:15, 31 October 2024
::Wait a second, why did you move the List of all comics to [[List of all comics (3000-3500)]]? It seemed to me like everything was working fine before you moved it [[User:FaviFake|FaviFake]] ([[User talk:FaviFake|talk]]) 05:24, 31 October 2024 (UTC)
:::I was trying to copy the content to [[List of all comics (3000-3500)]], and accidentally broke it. Sorry! [[User:42.book.addict|42.book.addict]] ([[User talk:42.book.addict|talk]]) 16:48, 31 October 2024 (UTC)
::::Yeah I can confirm the content and the entire edit history was moved to the incorrectly-titled page that's now scheduled for deletion. I guess maybe we didn't really need the edit history on that page, but who knows.
::::Weirdly, the bot seems to have restored the page as it was and then stopped doing its thing. Since we're the only ones here, I suggest you manually create the missing rows for the new comics and we'll see if that works when the next comic drops. If it doesn't, I'll contact the maintainer and creator of the bot myself. Sounds good? :) [[User:FaviFake|FaviFake]] ([[User talk:FaviFake|talk]]) 18:29, 31 October 2024 (UTC)
:::::Sir yes Sir! 🫡 [[User:42.book.addict|42.book.addict]] ([[User talk:42.book.addict|talk]]) 04:51, 1 November 2024 (UTC)
:::::: Great, thanks! I can also do it this afternoon if you don't have time. I realise my previous messages read like orders lol, they were supposed to be suggestions to try and fix the issue. [[User:FaviFake|FaviFake]] ([[User talk:FaviFake|talk]]) 07:18, 1 November 2024

== The [[List of all comics]] is no longer being updated automatically ==

Hey everyone, I noticed the bot isn't updating this page anymore: [[List of all comics]]. There are supposed to be five comics in it but there are only two at the moment. Is this supposed to happen? [[User:FaviFake|FaviFake]] ([[User talk:FaviFake|talk]]) 05:06, 31 October 2024

== 2034: Equations error? ==

One of the TeX math-thingies (sorry for the informal writing), is showing this error: "Failed to parse (Missing texvc executable. Please see math/README to configure.): \oint". Idk why it's showing this, can someone fix this? [[Special:Contributions/108.162.237.48|108.162.237.48]] 19:25, 6 November 2024 (UTC)
:It's a long-standing error, to do with the background processes that turns the TeX-style markup into embedded images. All equations (or whatever it might be that the particular MathML was being used to render) that were originally given cached-imagery ''still work fine'', but it seems a later update made it so that if you adjust it at all (even slightly), it no longer has the route to produce the embedding cleanly.
:It can probably be solved by rolling back some module(s) that got refreshed quite some time ago, though the advised fix is to actually fully update them (and/or reconfigure the backend scripting) to work with all the newest versions of the original tools. Unfortunately, the people (or maybe person) who would do this is not too active at the moment (may also not be up to speed on everything, either, if it involves a bit of more tricky administration), so we're left with the occasional problem establishing the texvc handler.
:Not sure which page you're encountering this on, but sometimes if you look back in the edit history you can find a working version of the thing you're seeing go wrong. If it's an aesthetic difference (e.g. the presence or absence of a spacing character), you might be able to just restore the render-cached version and make do with it not looking ''quite'' right.
:If it's a necessary change that was made (e.g. "''dt''" instead of "''dx''", which is definitely wrong the old way), or it seems never to have a valid render, then there's two obvious solutions:
:#Make your own image of it as it should be and (with a suitably auto-validated account, or via a handy external image hosting service and/or a more mature account here) get that embedded in place of the markup-source, or
:#Replicate its appearance in more basic (by standard) but complex (by source needed) markup. Combinations of basic wikimarkup and HTML can do most 'fiddly positional' things, see [[2614: 2]] for a numerator/denominator layout, for example.
:Not as 'simple' as TeX-markedup. But, on the other hand, the "\oint" symbol is "∮", so perhaps all you need to do is copy'n'paste that actual unicode symbol to wherever you found the problem, and use that instead, and forgo the TeX version altogether? (Might not show on some displays, but probably enough to make it a minority issue.) [[Special:Contributions/172.70.90.105|172.70.90.105]] 22:50, 6 November 2024 (UTC)
:Had the brainwave that I could probable ''search'' for the offending \oint, actually. Did so, found [[2034: Equations]], noted that it was the only (current) rendering issue and therefore just did the pasting over myself. Looks good for me, but obviously might not help (but not make worse) others' viewing of it. [[Special:Contributions/172.69.195.54|172.69.195.54]] 22:58, 6 November 2024 (UTC)

...Why didn't I think of just pasting the Unicode equivalent. I'm dumb, but thanks for fixing it. [[Special:Contributions/172.69.70.10|172.69.70.10]] 13:44, 8 November 2024 (UTC)

== Esolang wiki bug ==
The "esolangs.org" wiki is also experiencing a similar bug. The server was repeatedly changing a particular user's signature in his posts. [[User:ConscriptGlossary|ConscriptGlossary]] ([[User talk:ConscriptGlossary|talk]]) 04:01, 29 November 2024 (UTC)
:Fucking bullshit. One, this doesn’t belong here and I’ve copied it into [[explain xkcd:Community portal/Technial|the Technical Community Portal]]. Two, I saw your talk page on [https://esolangs.org/wiki/User_talk:ColorfulGalaxy%27s_CA_discoveries esolangs.org], which you brought up this “bug”, which the local admin (who’s probably just as sick and tired of you as I am) called BS on. If the server was changing your sig to my sig, it would be '''[[User:42.book.addict|42.book.addict]][[User talk:42.book.addict|Talk to me!]]''', not the sig that you faked in. You’re obviously seeking attention and are being abusive and childish. Please see the bottom of https://esolangs.org/wiki/Esolang:Introduce_yourself to see a full list of complaints. I will be asking Kynde to ban you and all of your alt (or shared) accounts. -tori [[Special:Contributions/162.158.167.98|162.158.167.98]] 05:36, 29 November 2024 (UTC)
::Additionally, the complaint doesn’t even make sense. The 2 wikis are running on different servers and different MediaWiki software and should in no shape or form be having the same bug across 2 different systems. Plus, why is the CAPTCHA in the esolang wiki so damn difficult? (Just a side note :3) -tori
:I just realized that they've changed '''my''' signature as well. That's strange. [[User:ConscriptGlossary|ConscriptGlossary]] ([[User talk:ConscriptGlossary|talk]]) 06:37, 29 November 2024 (UTC)

Once again they suddenly redirected my username to the Main Page. And the bug even forgot to remove "User:". [[User:ConscriptGlossary|ConscriptGlossary]] ([[User talk:ConscriptGlossary|talk]]) 13:05, 29 November 2024 (UTC)

:It's working normally now. [[User:ConscriptGlossary|ConscriptGlossary]] ([[User talk:ConscriptGlossary|talk]]) 13:06, 29 November 2024 (UTC)

The wiki may have been hacked. I checked it and got "HTTP 429" error message. [[User:ChristmasGospel|ChristmasGospel]] ([[User talk:ChristmasGospel|talk]]) 19:14, 29 November 2024 (UTC)
:No, it has not been hacked. The error message means that the server that is hosting the wiki is under a lot of stress and load. '''[[User:42.book.addict|42.book.addict]][[User talk:42.book.addict|Talk to me!]]''' 19:20, 29 November 2024 (UTC)
::Yes and no.
::;429 Too Many Requests (RFC 6585):The user has sent too many requests in a given amount of time. Intended for use with rate-limiting schemes.
::...it generally means that (in the opinion of the server), the person getting the 429 has been bashing the connection too much. This ''could'' be because they happen to be going through the same proxy as an actual prolific user (or several sub-prolific ones that similarly got lumped together to add up to "too much"), but load-sharing systems generally account for that already. General 'stress and load' is more likely to invoke a 500s message (depending upon what actually is happening).
::But, either way, if you get one of them then you're advised to pause, take a breath, perhaps wait a little before your next refresh/reload attempt, but if ''that'' goes wrong then wait a bit longer still (double your patience, maybe), and again more (further doubling) as necessary.
::Either it's not your fault, but you probably don't need to add to the problems, or it ''is'' your fault (e.g. you're webscraping in the background at full throttle) and you ''really'' need to stop causing those problems (and try not to do it again later). [[Special:Contributions/172.70.90.109|172.70.90.109]] 20:17, 29 November 2024 (UTC)

3016: Cold Air

2024-11-26T08:44:45Z

172.70.90.109: /* Explanation */ Blindly stating the mere existence of a relatively obscure book isn't useful. Luckily, I found a link for it. Removed the "probably inspired" as a long-shot. (Added a thing more likely to have crossed Randall's path, but prob. also not!)

{{comic
| number = 3016
| date = November 25, 2024
| title = Cold Air
| image = cold_air_2x.png
| imagesize = 713x283px
| noexpand = true
| titletext = We also should really have checked that the old water tower was disconnected from the water system before we started filling it with compressed air.
}}

==Explanation==
{{incomplete|Created by a 204 atm COMPRESSED BOT - Please change this comment when editing this page. Do NOT delete this tag too soon.}}
Tornadoes generally create winds of about 40-400 mph [https://www.weather.gov/ffc/fujita] (about 60-640 kph) which causes damage to buildings. Cueball proposes a method to essentially blow tornadoes away from cities by keeping enough "tornado repelling" air in a tank. It is not clear if the compressed air will be used to "blow away" the whole tornado, to try to exactly counteract the tornado itself (through applied counter-rotation) or to remove the conditions that cause the development of the tornado's system; although the last of these is heavily implied, as replacing any troublesome hot and humid air will remove the conditions required to invoke a nascent tornado. Whether this would work is questionable since it's precisely the mixing of warm and cold air that produces the swirling motion that creates tornadoes and, rather than dissipating the threat, the very act of displacement could create atmospheric mixing and tornado-generating turbulance in its own right.

In a compressed air system, peak pressure is considered about 40 bar [https://www.directindustry.com/prod/kaeser-kompressoren/product-4742-24559.html] (about 500 psi). Cueball proposes keeping the tank at 6 times that pressure to properly counteract the tornado. The title text confirms the tower's resemblance to a water tower is intentional which, if using 16 inch pipes as is common [https://www.waterworld.com/home/article/14071043/the-perfect-pipe] would produce much stronger winds than those of the tornado, because flow speed is inversely proportional to the diameter of the pipes and even a "wide" 16 inch pipe is very narrow for this purpose indeed.

The formula for the velocity of a fluid (air is considered a fluid in physics) is V=√(2*P/ρ) where V is the velocity, P is the pressure, and ρ is the density of the fluid. The density of the fluid is given by the formula ρ=P/(RT) for a given constant R and a Temperature T. In this case, ρ is [https://www.wolframalpha.com/input?i=3000psi%2F%280.287kj%2F%28kg+Kelvin%29*21C%29 0.245 g/cm^3] assuming room temperature, meaning the V=√(2*3000psi/ 0.245 g/cm^3)[https://www.wolframalpha.com/input?i=sqrt%282*%283000psi%29%2F%280.245+g%2Fcm%5E3%29%29 =410.9 m/s], which is just under 1500kph, almost three times faster than the max speeds of the tornados Cueball is trying to prevent.

Further, highly compressed tanks are prone to bursting,{{Citation needed}} which is why they are only used for small volumes of air in highly controlled settings. Cueball's proposal would put it in the center of a dense city, creating the possibility for further damage. Especially if, as it appears, the tank is itself twice the height of the tallest surrounding buildings (drawn to resemble skyscrapers, so probably tens of stories tall) elevated high above them upon a base of a similar reach.

Finally, tornadoes tend to form in ''sparsely'' populated areas, where structures are few and wind can flow uninterrupted, making his invention's necessity questionable at best. Even if Cueball's air tanks produce winds no faster than a normal tornado, they are now being produced in the center of a heavily constructed area, heavily increasing the potential buildings that can get damaged.

The result is a quadrupling in damage caused by wind, since now, not only are the tornadoes causing heavy winds, the tanks when functioning properly, and the tanks when malfunctioning, are causing heavy winds too.

Using technology to disrupt tornadoes before they form was a plot element in Liu Cixin's novel ''{{w|Ball Lightning (novel)|Ball Lightning}}'', and [https://memory-alpha.fandom.com/wiki/Weather_Modification_Net other works].

In the title text, it is revealed that the water tower they were using to store the compressed air still contained water. Given the pressure required for the tower to work properly against tornadoes and the fact that water is nearly incompressible, trying to fill an in-use water tower like this could potentially result in an explosion or other adverse effects.. The tower would also be unlikely to work as intended for either application.

==Transcript==
{{incomplete transcript|Do NOT delete this tag too soon.}}
:[Cueball is seen in front of a diagram of a tornado with a pointer in his hand. The diagram has arrows flowing from the bottom toward the tornado at the top and from the tornado toward the rain below it]
:Cueball: Tornado supercells are powered by the inflow of warm, moist surface air.

:[Cueball is now seen in front of a representation of his compressed air tank with a PSI of 3000 next to smaller buildings, appearing to be high-rise buildings or even skyscrapers in their own right, on either side of the tank]
:Cueball: Compressed air tanks could produce artificial pools of cold, dry air on demand, disrupting tornado inflow to protect cities.

:[Cueball, again with a pointer, is seen in front of a line graph labeled "Wind Damage over Time" (wind damage has increased after a point on the graph labeled "Giant experimental compressed air tanks installed in the middle of every major city"). In a frame in the top left corner, there is a label:]
:Several years later:
:Cueball: In retrospect, I can see how my plan went wrong.

{{comic discussion}}

[[Category:Comics featuring Cueball]]
[[Category:Tornadoes]]
[[Category:Line graphs]]

Talk:3003: Sandwich Helix

2024-10-28T05:47:05Z

172.70.90.109:

Sandwich presumably refers to {{w|compliment sandwich}}, but I don’t know what the helix is. --[[User:Galaktos|Galaktos]] ([[User talk:Galaktos|talk]]) 14:03, 25 October 2024 (UTC)
:I think sandwich refers to the context itself, as in, the context of something is both what is before that and what is after. [[Special:Contributions/172.71.222.236|172.71.222.236]] 15:19, 26 October 2024 (UTC)
: Maybe {{w|Models of communication#Dance}}? --[[User:Galaktos|Galaktos]] ([[User talk:Galaktos|talk]]) 14:12, 25 October 2024 (UTC)

:The word "Helix" may be a reference to the previous comic. [[User:CategoryGeneral|CategoryGeneral]] ([[User talk:CategoryGeneral|talk]]) 14:36, 25 October 2024 (UTC)

:The moral of this story is "People will try to find meaning in anything, even things that are directly stated to be meaningless."[[Special:Contributions/172.70.176.43|172.70.176.43]] 23:01, 26 October 2024 (UTC)

That title text makes me reasonably upset. What nitwit decided "smart quotes" AND incompatible default encodings was a good idea? [[Special:Contributions/172.70.174.203|172.70.174.203]] 16:45, 25 October 2024 (UTC)
: I'm inclined to blame Apple because [https://en.wikipedia.org/wiki/Mac_OS_Roman Mac OS Roman] (1989) postdates [https://en.wikipedia.org/wiki/Windows-1252 Windows 1252] (1987). Both of these extended [https://en.wikipedia.org/wiki/ISO/IEC_8859-1 ISO 8859-1] with curly quotes but chose different code points. [[User:Davidhbrown|Davidhbrown]] ([[User talk:Davidhbrown|talk]]) 03:26, 28 October 2024 (UTC)

It seems that something like this could happen over time naturally if it's a saying that "everyone knows" so that real meaning stops being said, and then eventually that bit of information disappears. For instance KISS "Keep it simple, stupid" has a negative connotation, but the idea is very sound. So people keep saying the abbreviation but stop saying the full version, and new people hearing it the first time might get the basic idea without knowing why. Eventually even the meaning could be lost, and it could just become something that people say without knowing why. Maybe the assume the ancient designers and engineers liked to make out when they saw complex things. [[User:Andyd273|Andyd273]] ([[User talk:Andyd273|talk]]) 17:58, 25 October 2024 (UTC)

Frums - Options [[Special:Contributions/162.158.91.14|162.158.91.14]] 04:18, 26 October 2024 (UTC)

''KISS Keep it simple, stupid'' was originally ''keep it stupid simple''. An emphasis, not an insult. --[[User:PRR|PRR]] ([[User talk:PRR|talk]]) 05:12, 26 October 2024 (UTC)
: "Keep it stupid, simple" still sounds like an insult. [[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]]) 03:07, 27 October 2024 (UTC)
:: https://en.wikipedia.org/wiki/KISS_principle#Origin --[[User:PRR|PRR]] ([[User talk:PRR|talk]]) 18:31, 27 October 2024 (UTC)
::: Note for recent editors... You can use that link as <code><nowiki>{{w|KISS principle#Origin|~insert some link text here~}}</nowiki></code> to get it to look like {{w|KISS principle#Origin|~insert some link text here~}}. I think we're getting some new users who seem not to be aware of this handy template, and/or being lazy about it. (I also indented your comment, for the circumstances.) [[Special:Contributions/162.158.74.118|162.158.74.118]] 19:01, 27 October 2024 (UTC)
:maybe keep it stupidly simple?{{unsigned ip|172.69.34.176|04:56, 27 October 2024}}

Infodump: To my knowledge the only five encodings resulting in "â€™" for utf-8 encoded "’" are Windows-125X where X is an even decimal digit. {{unsigned ip|162.158.154.78|15:25, 27 October 2024}}
==Grammar==
Minor grammatical point; please feel free to skip this. I just tweaked "a communication technique [...] which meaning has not been lost." to "a communication technique [...] whose meaning has not been lost.". "''Of'' which ''the'' meaning" or "whose meaning" both work, but the latter is less contrived. People keep forgetting that "whose" can refer to objects, as well as to people. <https://en.wiktionary.org/wiki/whose#Determiner>

The first rule of communication is "Always talk about communication." [[User:RegularSizedGuy|RegularSizedGuy]] ([[User talk:RegularSizedGuy|talk]]) 15:36, 25 October 2024 (UTC)

I'm pretty sure the first rule is "Context Matters" and "Helix Sandwich" conveys that by the lack of it.[[Special:Contributions/172.70.126.228|172.70.126.228]] 20:28, 27 October 2024 (UTC)

Possibly the best real-world example of this is the Biblical Book of Revelation. It's an example of apocalyptic writing, which means 'writing in code', not necessarily 'talking about the end of the world' (although it does also do that, which is where the confusion has arisen). And that's sort of the point - most of the context which would enable us to understand the book properly has been lost. For example, scholars generally accept that the 'beast' whose number is 666 is a reference to a real historical person, and that the number 666 is supposed to tell the reader that person's identity... but there's no consensus on who that person is. The fact that there is evidence to suggest that the number was altered (from 616) by later editors doesn't help. [[Special:Contributions/172.70.90.109|172.70.90.109]] 05:47, 28 October 2024 (UTC)

==Helix==

I don't think the "helix" refers to software development. It could be about the helical model of communication, which conveys communication as a non-linear process.

This is perhaps a joke with these simplistic "rules" of communication (like the compliment sandwich), which portray communication as something much simpler.

If we assume that communication is complex and non-linear (as the helical model of communication portrays), we might conclude that there is no such thing as "#1 rule of communication"; something that could be observed by the misuse of the "compliment sandwich". {{unsigned ip|172.70.47.87|15:38+, 25 October 2024}} (Assuming all the above is the same IP editor, tweaking their comment.)

:Ah, thank you. I added the Spiral (for development) because I couldn't find the Helix one (for communication), and I thought this was the best linkable item out there. Now I know it's ''Helical'', I've found it and I can put a link on your addendum and perhaps remove my original 'placeholder'. That's collaborative communication! ;) [[Special:Contributions/172.70.91.77|172.70.91.77]] 15:56, 25 October 2024 (UTC) (PS, please sign Talk contributions, and wikilinks are a good idea if you can add them. ;p )

I took the opposite point from that in the explanation so far, especially with the title text: Even if the encoding is wrongly specified, it's possible to figure out what was meant by some sequence of bytes. I imagine the teacher using a different nonce every time to make the point about the #1 rule of communication: Words don't have inherent meaning, it is acquired through use. (Though if I'm the only one with this interpretation it kind of sinks my idea I guess). [[User:Hcs|Hcs]] ([[User talk:Hcs|talk]]) 10:18, 26 October 2024 (UTC)

Is it not true that Cueball could basically be demonstrating the #1 rule, i.e. context is important, and that sometimes language is self-repairing? [[Special:Contributions/172.69.214.109|172.69.214.109]] 14:42, 26 October 2024 (UTC)

:<=========>
: ∞∞∞∞∞∞∞
:<=========>

Helix sandwich. That did not render well.- TenGolf
[[Special:Contributions/172.69.58.19|172.69.58.19]] 18:20, 27 October 2024 (UTC)
:Like it now? (There are better ways, but is the simplest.)[[Special:Contributions/172.68.205.134|172.68.205.134]] 18:28, 27 October 2024 (UTC)

Talk:2916: Machine

2024-10-21T23:53:22Z

172.70.90.109:

rather late for an april fools comic innit? also there doesn't seem to be anything exciting in this one lol, none of the usual cool exploration easter eggs, as far as i could tell at least [[Special:Contributions/172.71.178.76|172.71.178.76]] 16:41, 6 April 2024 (UTC)Erfaniom
:Randall posted an eclipse comic on Apr. 1. All April Fools comics are interactive. [[User:Z1mp0st0rz|Z1mp0st0rz]] ([[User talk:Z1mp0st0rz|talk]]) 15:27, 10 April 2024 (UTC)

: We're exploring crowdsourced human creativity here, in a way, so it can be a lot more interesting then Randall's exploration comics, at least for me, because i did take two years of GCSE psychology and enjoyed it. [[Special:Contributions/172.64.238.130|172.64.238.130]]

: looks like the egg's on my face lmao, i think i was among the first people to make anything, so everywhere was under construction for me, i didn't even understand that it was like a crowd thing [[Special:Contributions/172.70.210.52|172.70.210.52]] 14:19, 9 April 2024 (UTC)Erfaniom

Just popped over using Chrome on Android and all I see is four "missing picture" logos spinning around, plus another down the bottom right... [[Special:Contributions/141.101.68.193|141.101.68.193]] 18:13, 6 April 2024 (UTC)
:Okay, followup: it behaves quite differently on the non mobile site. You get two entry points with red balls and yellow balls and you need to place the various gizmos to direct the balls to the correct exit point. Once enough have correctly passed to turn the red X into a green tick, you have the option to submit. If you do, once you have named your design it will be added to the grid with other submissions all of which exist to push red and yellow balls around. (if you come across "Memories of Ragnarok", that's mine)
Mine are "Balancing Act" and "100% Success Rate" [[Special:Contributions/172.71.146.14|172.71.146.14]] 21:11, 15 April 2024 (UTC)
[[Special:Contributions/172.71.134.207|172.71.134.207]] 18:27, 6 April 2024 (UTC)
::The number of inputs appears to vary between 1 and 4, each of a different color, with one color-coded output for each. [[User:Claire Kholin|Claire Kholin]] ([[User talk:Claire Kholin|talk]]) 18:49, 6 April 2024 (UTC)

On the "machine" section, you see lots of "under construction cells". Perhaps this will develop as more are submitted. I notice the "under construction tape" has "DJIA" and "31415", perhaps a reference to "dow jones industrial average" and the first five digits of pi. [[User:Zeimusu|Zeimusu]] ([[User talk:Zeimusu|talk]]) 18:37, 6 April 2024 (UTC)
:Whenever someone submits a cell, it fills in one of the under construction cells. [[User:Claire Kholin|Claire Kholin]] ([[User talk:Claire Kholin|talk]]) 18:49, 6 April 2024 (UTC)
[Robert'); DROP TABLE Student!:;--] i just got a machine with 3 outputs one yellow another red and a third blue AND green and 3 inputs one green one blue and one red blue and yellow https://xkcd.com/2916/#xt=7&yt=50 hope its still there {{unsigned ip|172.70.115.173|18:01, 9 April 2024}}
:I think I just 'did' one with a Red+Yellow source (also separate singular Blue and Green) and a combined Blue+Green sink (and separate Yellow and Red). Got it working well, actually using fan-levitation to separate the R+Y enough to route them to their destinations, the Y then having to cross the occasional flying Green (which I was forced to "Bonk" and bounce up, entry being nearly at the bottom on right, exit being nearly at top on left) for its exit, everything else fairly simple. No idea if it got integrated, of course. Never seen any of my machines be accepted (when I later look around at what's there), so I'm still unsure if there's anything I can do to increase my chance of a successful square being made permanent on the grid.... [[Special:Contributions/172.70.163.49|172.70.163.49]] 20:58, 9 April 2024 (UTC)
:...still had it sitting there [https://imgur.com/kZdp3kH on my browser], though note that the Red+Yellow supply (mid-left) and the Green supply (right) aren't working here, through the "move the screen around, lose the feeds from 'Under Construction' squares" issue, or similar. But still I managed to submit it. The occasional Yellow and Red are falling from the Blue entrance in the top (I've not done anything special to filter those out/send them to a more proper exit, and it's too late to do so now anyway, it was just a Blue entry during the development process, of course).
:It's a pity you can't see it working, but I quite like my Yellow/Red separation. This might be the only time you see it in place, though, so a shame I didn't take a screenshot immedediately after submitting it. [[Special:Contributions/172.70.163.49|172.70.163.49]] 21:30, 9 April 2024 (UTC)
:I encountered a puzzle with five distinct pairs of in/out (none combined): Two blue, two red, one yellow. It was difficult! AFAIK five pairs is the highest reported so far. When I submitted the solution to the Machine, it had Under Construction above and to each side, and (IIRC) empty below, and no balls were provided, alas.[[Special:Contributions/172.69.134.216|172.69.134.216]] 03:46, 12 April 2024 (UTC)
I wanted to add an image for each object, but do not have the necessary access, can someone who has access add the images that I linked in the table so they can be included? [[User:Claire Kholin|Claire Kholin]] ([[User talk:Claire Kholin|talk]]) 18:49, 6 April 2024 (UTC)

I found a discussion with some guy talking about the API at https://euphoria.leet.nu/room/xkcd/ ; this could be useful for the wiki.

<code>
[c+1] now time to try fucking with the api
[c+1] https://incredible.xkcd.com/
[userwithnoaccount] 404
[c+1] it seems there are numbered machines under incredible.xkcd.com/machine/x
[c+1] returns a grid of individual machinlets
[c+1] which are uids like 3a7af27c-5389-5dcb-b660-3feab6be2ceb
[c+1] they're stored at urls like incredible.xkcd.com/folio/3a7af27c-5389-5dcb-b660-3feab6be2ceb
[c+1] there appear to be 33 machines total
[c+1] the json it returns seems to refer to these as "versions"
[c+1] $ curl -s https://incredible.xkcd.com/machine/21 | jq ".version"
21
[c+1] there is a machine/0, but it's all null
[c+1] going to https://incredible.xkcd.com/machine/current redirects to the current machine
[c+1] $ curl -sL https://incredible.xkcd.com/machine/current | jq ".version"
35
[c+1] wait, is that the *total* number of mahcines?
[c+1] i would've thought there'd be more
[c+1] this whole think is rather esoteric
[c+1] Written in rust, too: https://rapier.rs/
[c+1] Uh oh.
https://i.hypercone.us/?v=8e283d
[c+1] HMMM
https://i.hypercone.us/?v=079f8f
[c+1] it seems there is no limit
[c+1] i've uploaded a ~50M title
</code>

With this I was able to make a script that visualizes paths of the balls. I was hoping that there would be an interesting pattern somewhere but it appears to be mostly random (https://i.imgur.com/ZvLlucU.png) --[[Special:Contributions/172.71.131.24|172.71.131.24]] 17:12, 12 April 2024 (UTC)

[[Special:Contributions/172.70.57.146|172.70.57.146]]

Had quite a lot of fun, added a few 'successful' machines to the grid. Noted that whenever I try to use the Prism that (after a short delay) the comic-pane blanks and I need to refresh the page/get a completely new 'challenge' to start from scratch, so I'm just not using the prism at all (used most of the other items, in combination or 'just the one across the whole board', whichever seems most fun). But it doesn't seem to do what I'd like it to do, which is sort multiple colours from the same inflow into different outflow directions. Which would be ''very'' useful in a 'crossroads' situation, the general solution of directing them cross-path being too prone to random collisions. Also might be useful in the 'submitted machine grid', as I note that errors propagate, whereas adding a filter on all inputs would clean out (dispose of/send off to a valid gate?) the rogue balls. Anyway, gonna have to come back to this later when there's more time... Maybe then I'll even have something useful to add to the Explanation. [[Special:Contributions/172.70.163.31|172.70.163.31]] 19:03, 6 April 2024 (UTC)

The balls appear to be different weights. I just saw a machine that used fans to separate yellows from greens and blues in a sort of 'wheat from the chaff' manner to direct them to their correct outputs. I wonder what other hidden tricks are included. [[Special:Contributions/172.68.1.159|172.68.1.159]] 19:40, 6 April 2024 (UTC)

They're not all accepted, though it makes you think they are. Or something else more complex is going on we haven't realized yet. I made a machine that was working reliably, submitted it, and saw it on the overall grid. Reloading from a different browser I found the same location of the machine, with the same surroundings, but my machine had been replaced. It's nowhere else on the grid either. The first browser still shows it (but not after a reload with a cache clear). I'm not sure if there's some kind of "save" event that needs to happen beyond seeing your machine in the broader one, or if all user collaboration is an illusion, or if the system changes its mind about us somehow.

: Yeah, i've been seeing this too. Please tell me if you find any of my machines, images at https://i.hypercone.us/?v=22d562 , https://i.hypercone.us/?v=ad8e3a , and https://i.hypercone.us/?v=8d4d6a . I want to be one of the few to have added Catalan and Spanish to the grid. [[Special:Contributions/172.71.134.164|172.71.134.164]] 20:56, 6 April 2024 (UTC)

I've added some more observations to the page. Also, a guess which is too uncertain to put on the main page: The ball launcher for the yellows on the far left side misses a lot, and the yellow container isn't the one on the left. So I think the whole machine with crossing streams will result in the colors being sorted in their container order, and possibly have the streams combined and deposited at the bottom just above the containers. --[[Special:Contributions/172.71.147.100|172.71.147.100]] 21:07, 6 April 2024 (UTC)

has anyone seen the boat at the very bottom? [[User:Mushrooms|Mushrooms]] ([[User talk:Mushrooms|talk]]) 21:21, 6 April 2024 (UTC)

trying to see it on Firefox for Ubuntu and it just tells me to "visit xkcd.com to view" - THAT'S WHERE I AM?! Tried clearing website data (but not my entire cache) and that didn't help. Is there something I'm missing?

Oooh, just had one with four ball-entries (four colours) and ''three'' exits (one caters for two arrows). Pity it's rather complicated to get entries to exits (even if I can merge two of the streams). Might have to give up on it, but I'd like to have seen how it fits in with the 'submited grid'. i.e. someone else gets a two-colour introduction spot. [[Special:Contributions/162.158.74.119|162.158.74.119]] 22:37, 6 April 2024 (UTC)
:Me again. I'm just refreshing the page, looking at the pattern of entries/exits (just a dozen or so screens in, getting some repeats of pattern, indicating that it's going back to tiles it was suggesting before, probably depends on how many others are contributing and extending...)
:Found another 'double-colour' example. Two yellows ''from the same side'', which probably means that there's a two-yellows been asked to exit from the neighbour (will check shortly).
:Quickly adapting from my spreadsheet notation, "R, Y, G, B" in order, each "(Entry, Exit)", I've been using <dir> of L/R/T/B and a number (nominally percentage, though seems to include only values of 20, 30, 50, 70 and 80, so it ''might'' be more 1/6..5/6?) relating to the distance along from L to R (for T/B) or T to B (for L/R).
:This line is therefore (0,0)(L20+L70,R30+B70)(R80,L80)(T70,L50) ... no reds, two yellow pairings, a red pairing, a blue pairing. Would require at least two path-crossings (but I was going to calculate those things later, and double-colours might confuse my intended simple line-intersection calculation).
:...anyway, spent some time on this message, which might mean I'll get into a 'new batch' of available patterns as people have succeeded some of the challenges that I've been 'swiping left'. [[Special:Contributions/172.70.162.20|172.70.162.20]] 19:28, 7 April 2024 (UTC)
:...very next click: (0,0)(T30+L20,R20+R70)(R80,L80)(R50,B50), which is clearly the actual left-neighbour of the above. [[Special:Contributions/172.70.162.19|172.70.162.19]] 19:32, 7 April 2024 (UTC)
:Ok, stopped my refreshing to [https://imgur.com/a/OMFOmzy 'solve' a screen]. First of all I routed both yellows entries (right-upper and upper-right) to one yellow exit (middle-left) and gradually teased the greens across (lower-left to middle-right), as that way I was avoiding a criss-cross of balls, but the the other yellow exit (left-lower) was, of course, invalid.
:Changed it to drop one stream of yellows down towards the lower exit, across the rapidly firing greens (added a fan to filter away the occasional yellow that gets bounced over there, not much of an opportunity to filter falling-greens out of the yellow exit, so apologies to whoever gets the sceen below). Submited as "Two Yellows, One Green!", whether or not that'll save (apparently, I should continue to contribute and not refresh/close, or else the server will not keep the solution?).
:Interestingly, all four adjacent tiles are "Under construction", and if I scroll up... *DARN* the comic has blanked out (nothing there between the upper PREV/RANDOM/NEXT buttons and the lower ones, just whitespace). This may mean that it did not save. This is the kind of 'page crash' I get when I try using a Prism or get too many balls rattling around on top of a Black Hole. Perhaps it doesn't like that I'm scrolling into an Under Construction that shouldn't be there? (But then, why ''is'' it there?)
:Anyway, all extra information for everyone.
:I'll just refresh the page and go back and do some more entry/exit mapping, maybe? [[Special:Contributions/172.70.162.20|172.70.162.20]] 20:17, 7 April 2024 (UTC)

If you combine a bunch of these silly claw things in the middle by just spamming it, it begins to lag and do some chaotic collisions, even without balls colliding on it. It's curious how it does that seemingly randomly though. I wonder how calculations are added and if there's a tiny sprinkle of RNG. (Also, errors occur and say something about damaging recursion in the Rust programming language, so I guess we know how it was made. It's also pretty weird how there's not a lot of opening combinations? It's possible that the machine loops over in chunks of gears or something (that's what I'll call them). ([[User talk:Leo|talk]]) 13:15, 7 April 2024 (UTC)

If you place a black hole in the centre of a wheel, it makes the wheel behave unpredictably between resets. Sometimes it's almost normal, sometimes it's a lot faster than usual, and sometimes it's stopped but launches balls that touch it with extreme force. I was able to use this to submit a machine which didn't actually let a single ball through after being submitted. https://i.hypercone.us/?v=928bcd [[Special:Contributions/162.158.33.149|162.158.33.149]] 01:19, 7 April 2024 (UTC)

The page says that (and I have taken note of) the ball hue is ''coded'' to certain values, but is there a logic to those values that might be derived from the colour (either as RGB triplet or HSV/other colourspace definition). For example, the two ball-types with zero green component in their makeup are 'unit density' (green is far heavier "green+red" is far lighter, so it's not a simple relationship, unless it converts from °hue, in some way) and the only secondary colour exhibits non-zero drag. There's the possibility that it just derived from "we need different properties, we need different colours, we have no reason to connect either with other deliberately" or even some non-mathematical symbology (fire=red, water=blue(?), earth=green, air(/sunlight?)=yellow). But it makes me wonder what combination of properties cyan/magenta balls might have, if added. (Or is the choice of those four colours constrained, anyway? Though R/G colorblindness is already something of an accessibility failure, if anyone suffers that.) [[Special:Contributions/172.69.194.205|172.69.194.205]] 17:02, 7 April 2024 (UTC)
:For color vision issues, on Mac, open System Preferences, select Accessibility, select Display (in the Vision group), select the Color Filters tab, select Enable Color Filters, then finally try the different filters in the Filter Type menu. One of them should help make the colors distinct.[[Special:Contributions/172.69.134.216|172.69.134.216]] 03:40, 12 April 2024 (UTC)

[https://pastebin.com/7PAiLnyF Python script to get the URL and title of each Cell in the current machine]

[https://pastebin.com/xBhywGde Result of running that script at the moment] (encoded with ROT13 because pastebin wouldn't let me save it otherwise)
:has anybody at all whatsoever been able to find their creation using this API? [[User:Bellydrum|Bellydrum]] ([[User talk:Bellydrum|talk]]) 21:58, 7 April 2024 (UTC)

[https://pastebin.com/jN5MP2za Result of running that script on the first 42 machines], at least on these it looks like the only difference is that one cell is added each time? [[Special:Contributions/172.71.99.195|172.71.99.195]] 17:22, 7 April 2024 (UTC)

I've submitted four now, none of which was accepted. I tend to spend a lot of time getting them just right. Any hints as to what the acceptance criteria might be? Or do I just stink at this?
[[Special:Contributions/172.69.59.204|172.69.59.204]] 19:47, 7 April 2024 (UTC)

There appears to be a new object: a cat that bats things that touch it.
[[Special:Contributions/172.69.214.39|172.69.214.39]] 20:17, 7 April 2024 (UTC)

Is anyone else experiencing the bug where prisms cause the comic to disappear (leaving only the white background where it was) after a while? It makes viewing the whole machine basically impossible. (On further testing it appears to be firefox-exclusive.) [[Special:Contributions/172.70.162.38|172.70.162.38]] 20:31, 7 April 2024 (UTC)
:I've had the "Prisms break things" from the beginning (before any practical content). As in, trying to use them in a design breaks things. But I ''did'' glance upon their occasional use in the 'view submissions grid'. Right now I'm suffering from "white only" issue (see my "multi-yellow" accounts, above). I ''am'' using Firefox, if that's indeed relevant to this issue, but right now I'm not near any other up-to-date browser I care to use. [[Special:Contributions/172.70.163.31|172.70.163.31]] 21:37, 7 April 2024 (UTC)
:I'm getting the same issue with black holes (which probably makes more sense - put a black hole there and you'd expect everything else to disappear :o) - except that on one occasion I was able to put about 6 black holes in before the 7th one vanished everything.[[Special:Contributions/172.69.194.121|172.69.194.121]] 09:15, 8 April 2024 (UTC)

Has anyone seen their own cell in the machine at all yet? A manual approval system is probably necessary for obvious reasons, but if so it does seem to be moving quite slowly.
[[Special:Contributions/172.69.65.24|172.69.65.24]] 02:58, 8 April 2024 (UTC)

I've never seen one of my own cells after refreshing the page. :( [[Special:Contributions/172.70.110.122|172.70.110.122]] 20:27, 12 April 2024 (UTC)

How on earth is everyone seeing different parts of the grid? If I request "view machine" I can only see my own square, and the edges of everyone elses. Nothing else, definitely not all of the machine. [[Special:Contributions/172.68.64.149|172.68.64.149]] 21:11, 8 April 2024 (UTC)
::You should be able to click and drag the view around. [[Special:Contributions/172.71.242.54|172.71.242.54]] 21:41, 8 April 2024 (UTC)

Whoever designed the room entirely full of fans is evil - every time I scroll near it my entire browser freezes up and becomes unresponsive. And then the comic usually blanks.[[;8Special:Contributions/172.69.194.81|172.69.194.81]] 08:23, 9 April 2024 (UTC)

None of [https://www.explainxkcd.com/wiki/index.php?title=2916:_Machine&diff=339487&oldid=339486 these edits] were anything to do with "grammar", so why would anyone describe the change as such? The spelling of "colo(u)r" is an internationali[s|z]ation issue, of note, and why I usually prefer to defer to using words like "hue", instead, in such contexts on this site. The change of the link from "The Incredible Machine" (where the page exists) to "The Credible Machine" (where it doesn't, because that's really just this comic's own joke) I aready changed back... If you think it doesn't properly explain the pun/negation, then rewrite; but don't make it an invalid link to something that doesn't even exist, as you'd know if you had even followed the link(s). [[Special:Contributions/172.69.194.141|172.69.194.141]] 15:22, 12 April 2024 (UTC)

Folks might be interested in my list of all published blueprints with their titles and permalinks: https://github.com/scpso/incrediblexkcd. scpso [[Special:Contributions/172.68.144.147|172.68.144.147]] 13:18, 14 April 2024 (UTC)

== Level scrolling bug ==

When one views the whole machine, and scrolls down far enough, everything just disappears, and the comic is completely unresponsive. Has anyone else seen this? [[Special:Contributions/198.41.236.152|198.41.236.152]] 20:38, 7 April 2024 (UTC)

:I'm now seeing the same issue, I wasn't before. (I'm using Chrome) [[Special:Contributions/172.70.162.20|172.70.162.20]] 21:06, 7 April 2024 (UTC)

::A hard refresh appears to have fixed this for me (same person as above). [[Special:Contributions/141.101.99.101|141.101.99.101]] 10:28, 8 April 2024 (UTC)

:I've been having this issue as well (I'm using firefox). Opening the site in Edge instead seemed to work around it for me, so it might only affect Firefox (and derivatives). [[Special:Contributions/172.70.163.31|172.70.163.31]] 21:27, 7 April 2024 (UTC)
::See also the 'firefox bug' comments currently immediately above this section. (Please don't ask me to start Edge up, I hate it, won't use it any more than the system requires me to...) [[Special:Contributions/172.70.163.31|172.70.163.31]] 21:37, 7 April 2024 (UTC)

:Update - I did a hard refresh so I could play around with the new additions and I'm no longer encountering the bug, even on firefox. I think the "white screen" bug is fixed now and you just need to hard-refresh to download the fixed JS instead of using the cached one. (same person as 172.70.163.31 and 172.70.162.38) [[Special:Contributions/172.70.86.16|172.70.86.16]] 11:16, 8 April 2024 (UTC)

==New Category: Ball Pit?==

What do you think about a new category for comics with [[ball pits]]? [[150]], [[219]], [[485]], [[498]], [[2916]]? [[Special:Contributions/162.158.134.229|162.158.134.229]] 21:50, 7 April 2024 (UTC)

[[:Category:Playpen balls]] already exists.
[[Special:Contributions/172.70.174.133|172.70.174.133]] 17:35, 9 April 2024 (UTC)

== Prism Use? ==

Can the prism be used to sort balls by color? (or in any other way that is useful and different?) [[Special:Contributions/172.68.34.61|172.68.34.61]] 12:11, 8 April 2024 (UTC)
:From what I've seen, no. Though may be ''extremely'' susceptible to incident angle. As far as my own use has been, they seem to randomise the trajectory (possibly also do a total-internal-reflection, I've had balls bounce around and exit at ''really'' weird angles), but it's hard to collimate a feed of balls into a single exact track, even straight down from a ceiling-feed (if you have a ceiling feed directly over the floor exit, lucky you, it'll still occasionally perturb balls off to the sides just enough to be bounced out as a gate-miss, unless you add 'funnel' architecture of one kind or another). Oh, and when balls do a lot of 'internal bouncing' it often forced me to reload the comic (overloaded the physics engine?), so could not continue to tweak the same design.
:On the other hand, perhaps this was the ''intent'', and just code/browser failings made it work erratically. Maybe would be an idea to go back and retest for this (anybody who can), do a little !!science!! to be recorded and explained on the page. [[Special:Contributions/172.69.43.183|172.69.43.183]] 12:51, 8 April 2024 (UTC)
:So, ive did some testing and found..nothing. i ''did'' find some uses for the prism though. Like outting them diagonally makes the balls follow a "path", speeding up more and more (not really that great but it works with yellows), and that any ball hitting the left edge will try to go the the right edge. Not sure what else it can do, though. [[User:Begocc|Begocc]] ([[User talk:Begocc|talk]]) 09:35, 10 April 2024 (UTC)
::I did some thorough testing on a combined Red/Blue set of balls (carefully managed so that they were dropping into the target area as similarly as possible) and both rotated and moved the prism in various ways to check for any effects - like needing to enter parallel/perpendicular to the colour-bands, either to land on the 'target band' or start to pass across it, with the band then either facilitating or angling its 'fall through'. (Just visually checked, at first, then later adding 'buckets' below and to the sides, to try to catch balls departing on various trajectories in various 'clumps' making note of any that hit the 'bucket'-boundaries and bounced off elsewhere.)
::I found no significant sorting, and some balls would jitter around so much (within the prism) that they even launched almost straight back up where they came from (less poerfully than a Bonk-buffered ball, but not far off - also not reliable enough to use as a ball-elevator).
::In my experience, Yellow-sorting is easy (even against Blue and/or Red) by other means. Green is the easiest to have everything else sorted ''from'' (because it resists the fan method). The hardest to unmix are Reds from Blues, which one might think ''should'' be the most prism-differentiated but I'm afraid I just can't invoke that. Easier to have them fall a long way then bounce off a suitable bit of 'furniture', I can then get them to distribute ''fairly'' distinctly in two handy recepticles/onward-feed-hoppers, though it does need some careful placement of items to do it justice. It appears that none of my designs have made it to the 'public wall', but I have made a submitable machine or two that does such sorting sufficiently successfully to send it out (theoretically) to be seen. [[Special:Contributions/172.70.163.30|172.70.163.30]] 11:38, 10 April 2024 (UTC)

== Bugs and Exploits ==

You can use a sword to break the physics on the hinge thingy and create your very own "magnetic hill": https://imgur.com/a/IRZ0AlL [[Special:Contributions/162.158.134.108|162.158.134.108]] 13:02, 8 April 2024 (UTC)
:Hard to tell from that what other fans (perhaps) you've got completely off-clip.
:Those hinge-thingies can definitely be shifted by horizontal (outwith ball-weight pressures), but I've not found them to be reliable components as the "Stop" button (ball reset) seems to let those 'hinges' slring back to level, which might need a re-reset by moving them back past the thing that's holding them off-level.
:I have tried a few things with them:
:*'Ticker' mechanism, almost like a clock escapement, nudged by the rotating 'waterwheel', perhaps to try to release balls through a stream of other balls whilst keeping the path clear of collisions for each set, in turn.
:*'Batch dumper', accumulating a number of balls (above the 'hinge', behind a vertical bulkhead) until there's weight enough to 'open the hatch' and roll them out. (Again, an attempt to reduce collisions, by clumping batches together).
:*Finely configured inclines, by shoving something up into a free end of hinge with better angular resolution (but, as mentioned, this doesn't seem to want to 'hold', so probably would fail upon submission).
:...I had wondered if there was supposed to be a "falling anvil creates a catapult/ballista" idea behind the piece, but we don't ''have'' falling anvils (and definitely not in a repeating manner), and ball-powered catapult (esssentially "clown/acrobat jumps on one end of seesaw, clown/acrobat on other end flies up into the air") also doesn't seem practical.
:I'll try to recreate ''your'' design, work out if there's anything new about it, but right now looks like it's a fan-powered incline-raiser. [[Special:Contributions/172.70.162.38|172.70.162.38]] 14:23, 8 April 2024 (UTC)
:: No fans! Here's a wider view: https://imgur.com/a/xPJcsor
:: It survives the reset, because the balls falling on the lever push it down to the sword and it gets stuck there every time. But you need to place the sword just right to make the gravity bug happen. And even then it depends on the number of balls in some ways. [[Special:Contributions/172.68.243.27|172.68.243.27]] 14:46, 8 April 2024 (UTC)
::: I've replicated the "tip of sword grabs the 'hinge'" thing, which is very interesting, but not the anti-gravity effect. The movement still seems ''to me'' more like a fan's 'area of effect' thing, than a wonky sense of gravity, the way that the balls are rolling/resisting/interacting with each other. No, I can't see where you've 'hidden' the fan (and I'm sure that fans can't act across submission-grid-boundaries, which was my next guess), so it's a bit of a funny thing that you've got there. [[Special:Contributions/172.70.163.49|172.70.163.49]] 21:35, 9 April 2024 (UTC)

On occasion, two balls will fall from the containers as a pair, as if glued together. When this happens, they float down as if under much lower gravity, and then suddenly explode violently away from each other.[[Special:Contributions/172.69.43.182|172.69.43.182]] 10:56, 10 April 2024 (UTC)
:What contaniners?? [[Special:Contributions/172.70.110.252|172.70.110.252]] 14:58, 12 April 2024 (UTC)
::At the bottom of the grid are four containers that the balls are fired in to, from where they drop in to a pit with a boat.[[Special:Contributions/172.70.162.38|172.70.162.38]] 08:40, 15 April 2024 (UTC)

When the browser is running slowly, sometimes the chamber doors will open, but none of the balls in them will drop, which can lead to huge backlogs of balls building up. However, there appears to then be a limit to how many will dispense in one opening - only half a dozen or so layers are released before the door closes again.[[Special:Contributions/172.70.163.31|172.70.163.31]] 12:01, 24 April 2024 (UTC)

== The USS Buoyancy ==

Guys. The Buoyancy. She ''floats''. When all four sets of balls reach the ball pit there aren't further additions. The boat starts floating on them. I've been watching it for a while. It seems she moves left and will probably end up escaping the ball pit. [[User:DL Draco Rex|DL Draco Rex]] ([[User talk:DL Draco Rex|talk]]) 20:44, 8 April 2024 (UTC)
:Update: A new row spawned in and it reset just before the Buoyancy could escape. Here's a screenshot I grabbed a while before the reset, she'd moved further left by the time the reset occurred. https://imgur.com/gallery/8UCASCu [[User:DL Draco Rex|DL Draco Rex]] ([[User talk:DL Draco Rex|talk]]) 20:51, 8 April 2024 (UTC)

Alright, I'm almost 100% of the time seeing Buoyancy sink. Yes, she *floats* at first. But as she drifts to the sides, instead of yellows going underneath, reds and greens pile on top. Then, as the balls under expire (90 second timeout), she will start to sink. Very consistent behavior over time.
[[User:Keybounce|Keybounce]] ([[User talk:Keybounce|talk]]) 19:20, 11 April 2024 (UTC)

What is the Bouaancy i cant find it anywhere??? [[Special:Contributions/172.70.110.252|172.70.110.252]] 14:58, 12 April 2024 (UTC)
== Added key combinations, found in source ==

ctrl+alt+b
ctrl+shift+option+d
wheel: arrow keys

: Can you clarify what "option" is? I have tried alt, function, and "operating system", and none are doing it.
::It is alt [[Special:Contributions/172.70.110.252|172.70.110.252]] 14:58, 12 April 2024 (UTC)

== Fixed Number of Possible Machinelets? ==

I was resetting my browser to try and find new machinelet configurations, but there seem to be fewer and fewer as the game progresses. Hypothesis: the 'under construction' machinelets are set, and once one of them gets approved and added to the grid, that specific configuration of entrances/exits can't show up again.

== Advanced components? ==

How does one get access to the full set of components to build from? I'm only given planks, mallets, swords, scoops, anvils, bricks and fans. I never get any pillows, bumpers, cats, stick figures et cetera. Do they need to be "unlocked" through some achievement, or what? [[Special:Contributions/162.158.222.102|162.158.222.102]] 11:04, 9 April 2024 (UTC)

:This caught me for a while as well. I have since discovered that the tool box has a scroll bar and can be scrolled down; that's where the others are hiding.
::Invisible scrollbars – every GUI obfuscator's favorite tool for making users' lives harder. [[Special:Contributions/162.158.222.142|162.158.222.142]] 18:17, 9 April 2024 (UTC)

== Limit of 100 components? ==

Has anyone else seen this? At some point I started getting a count "95 / 100" towards the bottom of the toolbar. When it hits "100 / 100" the rest of the toolbar greys out, and I can't add anything more. (I suppose the physics engine has to keep a ceiling on the number of possible interactions between components.) —[[User:Scs|Scs]] ([[User talk:Scs|talk]]) 11:53, 10 April 2024 (UTC)
:Yes, quite early on I was dealing with a quite simple 'drop from ceiling straight down to floor' setup. After adding just enough 'funnel' to deal with 'splatter', I then built a castle wall in the open space just to make it fun (with some figures on/below it, that I've also tried to decorate in later submissions), of the 'grey blocks'.
:I actually hit the 100/100 ''exactly'' as I placed my final intended block. (No doubt that it's easy to hit the limit by just overlapping things so you can't see most of them, and other 'useless' placement, too...) [[Special:Contributions/172.70.85.48|172.70.85.48]] 19:57, 10 April 2024 (UTC)

== uss boyancy ==

Why have i not been seeing any uss boyancy [[Special:Contributions/172.70.110.122|172.70.110.122]] 14:04, 10 April 2024 (UTC)

Haha I dare you to go to https://xkcd.com/2916/#xt=7&yt=57 and stare at the two black holes next to eachother >:) [[User:Z1mp0st0rz|Z1mp0st0rz]] ([[User talk:Z1mp0st0rz|talk]]) 15:27, 10 April 2024 (UTC)

== Build a "working" machine from parts? ==

Has anyone started working on this idea:

Since any given machine segment seems to be saved, even if not in the final result, *and* since these segments are failing when combined in the whole, how about a "really working" machine that starts replacing failing segments when they jam or otherwise fail to work in the real machine?

The idea being something like, start the machine. Watch the top row, and see where the parts are failing to pass balls properly after two minutes. Replace the segments that are failing/jaming/etc, and let the new part process balls.

As you work your way down, over about 2 hours at the current size, you will eventually get a machine that properly sends balls down to the bottom, without jamming, without having to "pretend" that off-screen parts are working.

I mean, it's not like a gigantic, 600 segment machine will overflow memory on modern 32gb systems, nor consume so much power that these big huge CPU's will fail, right?
There is a 100 piece limit sadly
[[User:Keybounce|Keybounce]] ([[User talk:Keybounce|talk]]) 17:41, 10 April 2024 (UTC)
ps.: Why do white holes, black holes, prisms, etc, cause problems on some machines like mine and not others?

== Foreshadowing ==

I think that this Machine comic / game is foreshadowed by comic # 2785 titled Marble Run. {{unsigned ip|172.70.130.120|22:15, 11 April 2024}}

== Implementation? ==

Should we have a section on how this thing is implemented? How much is known? Obviously it's hugely dependent on [https://rapier.rs/ Rapier], as credited in the header text. I assume everything else is written in {{w|Rust (programming language)|Rust}}, too. But how is it deployed? Does Rust compile to {{w|Web Assembly}}, or what? Under Color Routing, our explanation mentions that the ball "values were extracted from the code" — how much of the code is actually visible? —[[User:Scs|Scs]] ([[User talk:Scs|talk]]) 16:39, 12 April 2024 (UTC)
:There are source maps available for the client side. So most of the client source is pretty much there an available. DevTools will load these maps automatically by default, and you can find the ball parameters under incredible/src/components/widgets/Balls.tsx. As for the server, it has a Server header of Warp/3.3.31, a web server used for WAI applications in Haskell. [[Special:Contributions/172.70.114.44|172.70.114.44]] 13:37, 14 April 2024 (UTC)
::The source is available at https://github.com/xkcd/incredible --[[Special:Contributions/172.68.253.130|172.68.253.130]] 17:58, 17 May 2024 (UTC)

== XKCD Prize ==

I propose the award of "Good Job" trophies for answers to the following weighty questions:

Cells ...

:C1. There is always at least one entry-exit (same color) pair. I have seen up to five pairs. Is there a limit?

:C2. I have never seen a two-color entry or exit, in over 100 tries, but I have seen pictures posted of this case. How rare are they?

Entry points (where balls enter the cell) ...

:E1. The entry rate varies randomly. Is there a limit to the range of time between two balls?

:E2. Some entries produce balls much faster than others, forever. Does this depend on color? Location? Anything else?

Exit points (where balls leave the cell) ...

:X1. At exits there is a display indicating x or check, and a ring meter showing progress towards check. Eating the wrong color reduces the ring score. By how much? Is it the same amount as is gained by eating the correct color?

:X2. The ring countdown starts about 4 seconds after the last ball, and lasts about 10 seconds. Does this ever vary?

Object properties ...

:O1. The pillow clearly absorbs energy. What other objects have variation in bounce, and how much? By sending a stream of green balls at high speed into targets, it can be observed that the brick and the shot glass (outside edge) are more bouncy than the anvil, which in turn is more bouncy than the plank. Are other colors (such as red) affected the same way?

:O2. Does the bounciness of any objects vary over their shape? The head of the mallet seems a little bouncier, but it's hard to set its angle to precisely match other test objects. The shaft of the pivot thing seems to be sticky. The dead edges of the triangle bonkers seem to absorb all inward energy from green balls, but only some energy from red balls.

:O3. Do the bonkers give a constant exit speed, or does it depend on something like the arrival speed or ball color? Does the exit speed replace the entry speed, or are they combined somehow? Like the dead edges (see O2) I suspect the live edge also absorbs inbound energy before it fires, so the outbound energy may be constant, though maybe not for all colors.

Cats ...

:K1. Over what range and direction will the cat swat at a nearby ball?

:K2. Does the cat always add the same amount of energy when swatting a ball?

:K3. Does the cat always add energy in the same direction when swatting a ball? At first glance the direction seems to be random over a range of angles, but this may be due to random entry points, speeds, and directions for the balls, rather than due to randomness by the cat.

:K4. Is there a rate limit for how often the cat will act?

Black holes and Repulsers ...

:B1. At their default size, repulsers are much stronger than black holes. How much stronger?

:B2. How does effect scale with distance? Are black holes inverse-square? What about repulsers?

:B3. Is there frame dragging around black holes? (good luck :)

:B4. At an exit, does the rate of ring decay slow down if a black hole is nearby?

Bonus observation: Black holes have large solid centers. A red ball stuck to a black hole can be seen bouncing off the center.

Spoiler for B1 and part of B2: If five default size black holes and one default size repulser are all placed at the default center, they seem to cancel out exactly, at all distances, though the solid centers still repel direct collisions. So the ratio is 5:1 and the distance equation (whatever it is) seems to be the same for both objects.
[[Special:Contributions/162.158.167.94|162.158.167.94]] 15:53, 14 April 2024 (UTC)

: C1: Current (as of y=70 filled) maximum across the machine is 5 pairs, only occuring 5 times, so I suppose it doesn't go higher. C2: So far there are only three combined gates in the machine, all two-color: one between (3, 8) and (4, 8) and two between (6, 50) and (7, 50). So yes, they are very rare. [[Special:Contributions/172.70.250.206|172.70.250.206]] 21:38, 14 April 2024 (UTC)

:Re. X1, I'm pretty sure (but don't have evidence, that the answer is 'no - a bad ball reduces it by more than a good ball increases it'. I can also think of an X3 - Does a good ball always increase the counter by the same amount; does this vary by colour or anything else? [[Special:Contributions/172.69.195.229|172.69.195.229]] 08:47, 15 April 2024 (UTC)

: E1: In the machine there is a value called ms_per_ball. Its value is 1000. Ie, a ball should be spawned every 1 second into the overall machine per entry. [[Special:Contributions/162.158.111.212|162.158.111.212]] 18:56, 15 April 2024 (UTC)
:: Measuring five random new puzzles, I found most entries deliver 1 ball per second, or almost that much. But I found one green entry that only provided 1 ball every 2 seconds (15 in 30, forever). When I delivered those green balls to the green exit point, I found the ring meter there filled up twice as much per ball consumed. Later I found a red entry that produced only 8 balls in 30 seconds, forever. Those red balls also filled the red exit ring meter much faster than usual. [[Special:Contributions/172.69.134.17|172.69.134.17]] 12:51, 8 May 2024 (UTC)
: K1: There are 3 collision zones defined for the cat swat: The head, its butt & a zone in front of it ("swat sensor"). [[Special:Contributions/162.158.111.212|162.158.111.212]] 18:56, 15 April 2024 (UTC)
: K2: Yes. There is in fact a hidden property called catMass. Its value is 2. I am not aware of any machines which submitted a different value. I have submitted my own (sadly not accepted) with stronger cats (a higher catMass value). [https://incredible.xkcd.com/folio/02092fc5-9e23-5468-990e-fba7d67d82c6 Here's an example]. This value is multiplied by 8 and then divided by the minimum of inverse mass of the ball or JS' Number.MIN_VALUE. So to answer your question: yes, it is the same, unless this value got altered (through external methods) and depending on the ball type. [[Special:Contributions/162.158.111.212|162.158.111.212]] 18:56, 15 April 2024 (UTC)
::I observe the cat imparts the same velocity to yellow balls and to green balls. The green balls weigh about 30x more than the yellow balls, so I think for "same energy" the answer appears to be no.[[Special:Contributions/162.158.167.28|162.158.167.28]] 15:29, 24 April 2024 (UTC)
: K4: A cat will at the fastest swat every 200 ms. However up to another 400 ms are added by random. So the limit is a range from 200 to 600 ms. (Simplified, there is a period called "baby jail" where the cat has stopped the 'swat' animation but still cannot swat a new ball. This time is included in the previous calculation.) [[Special:Contributions/162.158.111.212|162.158.111.212]] 18:56, 15 April 2024 (UTC)
: C2: After trying well over 200 reloads, I obtained a cell with three entries (inputs) and four exits. One of the entries produces both blue and red balls, at different rates. [[Special:Contributions/172.69.134.17|172.69.134.17]] 12:47, 8 May 2024 (UTC)
: E1, E2, X1, X2 and X3: The example link posted above regarding K2 is very enlightening. It reveals (in JSON) that entries and exits have assigned speeds called "rate"s (partly addressing E1, E2, X1, X2 and X3). Rates range from at least 0.55 to 0.76 (maybe balls-per-second, and maybe up to 1.0). It also reveals the items we add are "widgets" and they each have names such as "board" and "catswat". Also the entries and exits are called "inputs" and "outputs", and the balls have types including 1 and 2 which probably correspond to colors. Further review of such examples could be used to update and harmonize the main explanation. [[Special:Contributions/172.69.134.16|172.69.134.16]] 12:53, 8 May 2024 (UTC)

== Submission Rules ==

Has anyone had any luck determining what the rules for submission are? Like many others, I've submitted a few that I've taken painstaking care to get right only to have them disappear after the refresh, never to be seen again. At first I assumed it was first come, first served, with the first submission getting included, but I'm not so sure.

I took a look at the "[https://pastebin.com/jN5MP2za first 42]" versions that someone provided above, and noticed:
* The very first submission, "Pretty Bad" at (0,0) is still there.
* The second submission is "Don't Forget to Switch Your Fans" which is actually (7,0). It's also still there.
* These are followed by "sword" at (2,0) and "Fred" at (1,0), also still there.
* Next is "Pinball Bouncer" which is actually (0,1).
* Next is "undercomplicated". However this is then replaced by "OnlyFans" which is then replaced by "popcorn". "popcorn" appears at (3,0) and is still there.

What caused these to be added, then removed/replaced if it's first come, first served?

I also noticed over the weekend that I was getting assigned blocks that weren't even in the machine yet. I had rows 67 and 68, and the machine was only on row 65.

Also, I did two on row 68, then one on row 67.

None of these got added, which I assume means that someone else completed them before me, BUT that I started before they finished, otherwise I would hope I wouldn't have been assigned one that was already done.

Just now, I created one for a simple red-in, red-out at (7,73). I completed and submitted it. Then I refreshed and hit the edit button a few times and after a few tries I got another red-in, red-out with the input and output at the exact same place. I threw a couple of boards into it and submitted it and it showed it at the exact same spot, (7,73). So I was able to create a new one for the same spot I had already submitted one. I feel like this implied it's not first come, first served, as if so, why would it allow more people to submit for the same spot that someone had already successfully submitted? FWIW, the lowest row on the actual machine at this point is 70. [[Special:Contributions/172.70.134.54|172.70.134.54]] 15:16, 15 April 2024 (UTC)
:: The criteria is not known yet. But it seems you are supposed to be able to make multiple submissions per specific cell / puzzle type (there is a list of puzzles sent to the client, when you submit one, the server picks a position which fits that puzzle.). Then one seems to be chosen manually for a specific cell. There are times of day when the machine is being updated very often, and other times when nothing happens for a while, indicating it is likely a manual process. When a puzzle is added to the grid, the value `snapshot` is populated under its corresponding /folio/ URL. Otherwise it is null. The submission time does not seem to have an effect on if your machine would be accepted. [[Special:Contributions/172.68.195.183|172.68.195.183]] 18:29, 15 April 2024 (UTC)
:It's not simply the first submission, because then we'd see many more simple solutions. Most of the trivial cells get artistic designs and overcomplicated contraptions, which take longer to build and would have lost to simpler and quicker solutions. It's not always the most elaborate contraption, because there are a few really minimal solutions where surely someone else submitted something more complex. It's often not the most correct solution, because many designs get clogged quickly or lose many balls, and I've seen some good solutions get replaced with ones that mis-sort many more balls. It's not always a bad solution either, because there are some that work really well.
:It's possible that the server collects submissions for a while and then chooses one at random. It's also possible that the selection is manual, or maybe the manual step is just a final approval to ensure that no hate speech or other garbage gets in.

man I love messing with the hinges lol [[Special:Contributions/172.70.54.165|172.70.54.165]] 18:49, 18 April 2024 (UTC)Maxalon

==Is the Machine now 'complete'?==

For the first time, I'm seeing a machine with no 'under construction' cells. Do we think it has now stopped processing new submissions (despite still having the option to build them)? [NB - even with all the bottom row cells providing balls to the chambers, the Bouyancy is still only reaching the side of the pit and then sinking.][[Special:Contributions/172.70.91.146|172.70.91.146]] 11:57, 24 April 2024 (UTC)
:On the contrary, here. I submitted some machines. (Even did a hard-reload of the page, between them, in case I had to 'update' the scripting behind it.) I get my solution placed at the bottom layer (in once case, it had a "chuck across to the ball-bins" pipe, though nothing got sent across to the ball-bin/no activity was happening in the ball-pit and there's no USS Bouyancy floating around, in another, it just went into nothing) but I'm ''surrounded'' (to the sides, and above) with Under Construction Tape machine-cells. In one example, I had to scroll up 19 layers before I hit any actual machines (in another, it was well into the 20s, but I lost count).
:Latest submission was [https://xkcd.com/2916/#xt=9&yt=65&v=896 this one], didn't keep a note of the immediately prior ones. Not sure what it looks like from anybody else's perspective. (Nor [https://xkcd.com/2916/#xt=9&yt=66&v=896 a] [https://xkcd.com/2916/#xt=8&yt=69&v=896 selection] [https://xkcd.com/2916/#xt=10&yt=67&v=896 of] [https://xkcd.com/2916/#xt=1&yt=72&v=896 those] [https://xkcd.com/2916/#xt=1&yt=71&v=896 that] [https://xkcd.com/2916/#xt=5&yt=69&v=896 I] [https://xkcd.com/2916/#xt=1&yt=72&v=896 noted] previously... And given that there are two "xt=1&yt=72"s in that list, it looks like I later 'redid' a cell anyway, presuming the "v=896" is my constant UID, as it has never changed since I started to note these things.) [[Special:Contributions/172.69.79.139|172.69.79.139]] 23:30, 25 April 2024 (UTC)
:Postscript: "[https://xkcd.com/2916/#xt=9&yt=65&v=896 this one]" doesn't even send ''me'' to my own just done machine, when I test it! In fact, I'm fairly sure that the one I was linking had green and red (maybe red) balls that needed 'servicing', not the Blue/Red of the "LBC" cell. If not that, it was green, red and blue, but I think that was the one before the hard-refresh. [[Special:Contributions/162.158.33.145|162.158.33.145]] 23:36, 25 April 2024 (UTC)

:Definitely still under construction - it's up to version 1233 as of now. I've been keeping an eye on it - you can see a list of all published machines with permalinks on my [https://github.com/scpso/incrediblexkcd github page] and search for the names of machines you've submitted to see if they ever got published, or download the csv if you want. None of mine have been published but I've still had a lot of fun. [[Special:Contributions/172.68.144.154|172.68.144.154]] 13:27, 27 April 2024 (UTC)

:As of May 23 2024 it looks complete - no "under construction" cells (except during page load). I also notice that the new blank machines on offer for solving have become simpler. Most have only one or two pairs of inputs/outputs now; rarely three. When the page was new it was possible to get four or even five pairs. BTW many of the submissions are very clever, so congrats to those who were chosen. [[Special:Contributions/172.71.158.116|172.71.158.116]] 20:03, 23 May 2024 (UTC)
::Nope, it's still going. [[Special:Contributions/172.69.59.204|172.69.59.204]] 23:35, 26 May 2024 (UTC)
::Maybe the reduction in input/output counts is intentional, to assist in fitting accepted submissions into the machine. [[Special:Contributions/172.69.22.56|172.69.22.56]] 14:44, 27 May 2024 (UTC)
:::I believe it might be complete now. I just submitted one and it replaced one of the existing cells not near the end of the machine. There are no "under construction" cells. [[User:InTheSky|InTheSky]] ([[User talk:InTheSky|talk]]) 09:09, 28 May 2024 (UTC)
::::Just yesterday, I had "construction all the way round" my submission (well, left, right, I was not on the bottom layer and the cell above had yellow tape; did not scroll to see diagonals/further), but I can't test the situation ''right now'', so it might have changed. But I am so used to entries being within a mass of 'taped off' neighbours (and not yet, SFAIK, had a permanent entry into the recurring composite 'board' that lasted beyond the period of submission). [[Special:Contributions/172.70.162.18|172.70.162.18]] 10:09, 28 May 2024 (UTC)

:Getting the machine layout in a JSON form (see above) always revealed a sructure with 128 rows, gradually filling up from version to version. I assume the complete version would have 128 rows filled. --[[Special:Contributions/172.70.246.187|172.70.246.187]] 07:54, 4 June 2024 (UTC)
:: Guess you were right, you can no longer play the game, just see the grid. Which is sad. I would still like to play if I had an idea, even without submitting [[Special:Contributions/172.70.162.185|172.70.162.185]] 00:31, 11 June 2024 (UTC)
:::You can still play the game; a bunch of new layouts just got added, including a 5i5o and 3i4o. But it does look like new rows are no longer being added, just put on top of existing ones.[[Special:Contributions/172.69.22.56|172.69.22.56]] 06:20, 13 June 2024 (UTC)

== Balls have spin ==

This is subtle, and hard to see because the balls no visible texture: The balls carry spin. It can be seen, with effort, using green balls (which are heaviest). Rolling down a slope (say, two boards), green balls accumulate spin in the direction they are rolling. Let them drop off the end and then bounce off a brick such that they travel upward, but with very little sideways motion. Then "catch" the balls with a brick just past their apex, when they are moving slowly. If the ball lands on a horizontal brick, it can be seen that the ball will suddenly accelerate left or right based on the spin. [[Special:Contributions/172.71.155.18|172.71.155.18]] 15:17, 1 May 2024 (UTC)
:I will add this to the explanation.[[User:PDesbeginner|PDesbeginner]] ([[User talk:PDesbeginner|talk]]) 03:05, 19 June 2024 (UTC)

The spin is easier to see when the balls have been accelerated by forceful interaction with tangible objects. Multiple precisely stacked bonks, which I use often in my experiments, make balls spin so quickly that they rocket across flat surfaces when they fall on them. I believe in some cases they may be spinning so fast that they float or hover, but I can't prove this. I've seen two different colored balls hovering or moving slowly together, seeming to touch. When they encounter a tangible object, they rocket off in opposite directions. I've seen similar effects with multiple stacked wheels and hinged scoops, which behave chaotically and cause balls to rebound fast enough that in some cases they pass through other tangible objects.[[User:Yusagi Yojimbo|Yusagi Yojimbo]] ([[User talk:Yusagi Yojimbo|talk]]) 19:15, 17 July 2024 (UTC)

== Stacking Objects ==

Stacking certain objects seems to stack their effects. For instance, enough Fans placed directly on top of each other are strong enough to redirect even green balls in mid-flight.

Multiple Bonks create a more powerful bounce, sometimes fast enough to make the ball seem to disappear briefly. These effects can be useful in overcoming certain restrictions and difficulties, or just for the joy of watching balls rocket around.

Stacking moving objects like Hinged Hooks and Wheels creates a completely different effect. Multiple hooks of either handedness - left or right - will lock together and then start to rotate slowly or swing wildly, together or separately, in both directions. Even when the hooks are moving slowly, balls that interact with them will sometime either rocket away or stick to them with a gravitation effect.

Combining left and right hooks has similar effects, but more than 4-6 of either hook will typically slow the animation, and eventually freeze it completely.

More Wheels can be stacked than hooks, with numbers in the dozens still allowing the animation to proceed. They will act in a similar fashion, sometimes locking and sometimes spinning wildly. Balls that strike them will be projected away at high speed, sometimes disappearing, or reappearing in a different section (a round Bonk will often flash briefly with no visible interaction).

Other interaction include sucking the ball into the interior of the wheel, where it sometimes disappears, or clinging to the surface like a gravitational attraction. The more Wheels, the more likely that the ball will simply disappear.

These techniques create interesting chaotic environments in the cell, but make it difficult to meet the ball feed requirements for submission. With multiple inputs it becomes effectively impossible. One work around is to separate streams for the balls at the source, protecting one stream to feed it into the output while allowing the rest to interact with the chaotic object. This is easiest with a single input at the top of the cell, but is still possible with one or more side inputs, depending on the location of the outputs.

The easiest way to stack hooks is to leave them at the spawn point and spawn more on top. Moving hooks and stacking them manually makes it hard to realign them perfectly to get the chaotic interaction, although they will still interact in unexpected ways. Wheels however can be effectively moved and stacked manually.

Adding another object on top may freeze the movement if the object is large large enough. A brick or a round Bonk will not significantly affect the Wheel, nor will a Black Hole or Repulser, but a Board, which extends beyond the Wheel, will lock it in place. The chaotic effects remain even when the wheels aren't moving - the balls seem to react as if they were spinning at high RPMs. [[User:Yusagi Yojimbo|Yusagi Yojimbo]] ([[User talk:Yusagi Yojimbo|talk]]) 17:22, 6 May 2024 (UTC)

I've been playing with creating machines that satisfy the requirements to be submittable but allow me to make changes at the last second - after getting an active "submit" button but before submitting I make a change that would technically make it unsubmittable because it basically becomes a chaotic system. The most recent was a stacked mass of ships wheels directly below the sole entry for one color ball. I placed a plank above the wheel to direct the balls to the exit point on the lower border. When I got the submit button to activate I deleted the plank, and clicked the submit button. Even though it immediately became "unsubmittable" I was still able to name it and submit it, where it took its place in the machine grid. The stack of wheels spun at blindingly high speed, and flung the balls around madly. I noticed that some actually pierced the walls and appeared in adjacent machine cells. High energy physics at work! {{unsigned|Yusagi Yojimbo|03:08, 14 September 2024}}
:Now, this is part of why I feel I have to add a "colour-filter" step in almost anything I do (hard, when only some colours appear in 'design mode', to scoop up and test being mixed in)... The number of times a placed submission gets wildly wrong 'inputs' from the prior submitted machines' outputs (that ''sometimes'' I can resolve, but without knowing the actual needs until too late to account for them). [[Special:Contributions/172.70.163.48|172.70.163.48]] 05:32, 14 September 2024 (UTC)

== Wheel/Fan page crash ==

If you place a fan close to a wheel, such that the middle of the fan is about in line with the bottom edge of the lower wheel blade, and the fan blades are just barely touching the wheel blade, then the wheel accelerates apparently without bound. Eventually any ball that touches the wheel simply disappears from the page. Around 20 seconds later (as the wheel continues to accelerate apparently) the page crashes upon the next ball impact, with a javascript error:

<pre>Uncaught RuntimeError: unreachable executed
stepWithEvents rapier_wasm2d_bg.js:2726
step physics_pipeline.js:16
step world.js:111</pre>

At that point you lose your creation, which sadly I learned the hard way. This is fairly easy to reproduce. --[[Special:Contributions/172.71.166.206|172.71.166.206]] 01:23, 7 May 2024 (UTC)

I can't seem to get this to work. It could be because I'm dumb, though. That happens sometimes. [[User:Psychoticpotato|Psychoticpotato]] ([[User talk:Psychoticpotato|talk]]) 00:00, 14 May 2024 (UTC)

https://imgur.com/a/EhzlbCV --[[Special:Contributions/172.68.26.74|172.68.26.74]] 13:48, 15 May 2024 (UTC)

== Another glitch ==

Some pairs, like "xt=6&yt=124" and "xt=7&yt=124" cause a glitch. It is not related to the machine, for it is consistent for me (Fx 126.0.1, Windows 11). Does anyone else have these issues? [[Special:Contributions/172.70.34.11|172.70.34.11]] 19:02, 7 June 2024 (UTC)

Yes the live huge machine is crashing very frequently now. If I scroll around it will crash and just freeze permanently. I can't tell which panel or panels is causing the crash though. Maybe it's just gotten too big? [[Special:Contributions/172.69.64.240|172.69.64.240]]

== Yet Another glitch ==

If you press a ball against the wall it clips out kinda cool {{unsigned|Xkcd machine guy|09:39, 16 June 2024}}
:You can observe this with pressing balls between (solid) elements, too, having placed one item (or more) then shifting a further one into contact with the prior(s) with a ball already landed there. (I ought to try it with two 'cups', mutually inverted, trap a ball in one then move either straight across the other.)
:It's often useful to (temporarily) clear out a system jam by sweeping the balls around with a throwaway object, but also you can force their time-outs by making their existence untenable (after some scene-editing that temporarily sent streams in totally in the wrong direction). [[Special:Contributions/162.158.49.94|162.158.49.94]] 14:04, 16 June 2024 (UTC)

== Entirely broken? ==

I can no longer play the game (have tried on two different computers, repeatedly for the last 24 hours). Starts out in the machine view, the machine freezes immediately, and there's no edit button. -- [[User:Rei|Rei]] ([[User talk:Rei|talk]]) 22:10, 21 June 2024 (UTC)

Same here. If you scroll (drag) to view the bottom (USS Buoyancy), balls will move there, but there's no "Edit" button. [[Special:Contributions/172.71.159.7|172.71.159.7]] 23:14, 21 June 2024 (UTC)

Also for me. Chrome and Firefox, balls traverse the bottom chamber and float the boat, but as soon as the bottom row of machines are within view, no balls spawn or move. I only just saw this comic today, which appears to be the day it broke, so... I've never seen it running. Came to Explainxkcd to see if it was just me, and here we are at the very bottom, not feeling buoyant. [[Special:Contributions/162.158.167.76|162.158.167.76]] 05:35, 22 June 2024 (UTC)

Is it possible it will eventually be fixed? {{unsigned ip|162.158.175.151|13:44, 24 June 2024}}
:Many things are possible! [[Special:Contributions/141.101.99.34|141.101.99.34]] 20:55, 24 June 2024 (UTC)

I opened [https://github.com/xkcd/incredible/issues/3a ticket on Github]. A day later it was fixed, so I assume that was the trigger. Yeay! :) -- [[Special:Contributions/172.69.144.162|172.69.144.162]] 11:14, 25 June 2024 (UTC)

On Chromakode’s (Max Goodheart, one of the devs of Machine) website, he has an article about the process of creating the game. In the very beginning, he mentions our explanation. Seeing as Randall most likely has seen this article, could it be possible that he has read our explanation and is aware of our existence? [[User:42.book.addict|42.book.addict]] ([[User talk:42.book.addict|talk]]) 15:10, 21 October 2024 (UTC)
:If and if and if, aside, I would imagine that he is fully ''aware'' of it but could be studiously (or at least overtly) not getting involved in it in any practical way.
:I'm trying to remember how much he actually involved himself in the old [forums|fora].xkcd.com, registered as an actual subdomain that ''belonged'' to him, and seem to think that he didn't really (at least identifiably).
:He has even less vested interest in this entirely 'fan-created' site. The most involvement might be from the willingness to allow/actively overlook copyight issues that would have liberties taken, but it's already basically all already CreativeCommons or similar (of the things uploaded here, there necessarily being "links only" out to some newspaper-affiliated stuff, etc) so already something he can blithely ignore (as he would the "I hate xkcd" anti-fan sites).
:Is there any actual reason you need him to be? You can always contact him in various other established ways, from email to formerly-Twitter. Why should he become further distracted by our particular brand of muddling-through to his thrice-weekly output, rather than just do what he does to entertain us on such a tight schedule? I've said before, and will doubtless say again, that Randall might or might not read this site (though, for various reasons, I'm not convinced he does) but would probably be wise to not ''visibly'' do so. [[Special:Contributions/172.70.90.109|172.70.90.109]] 23:53, 21 October 2024 (UTC)

Talk:3000: Experimental Astrophysics

2024-10-21T12:37:48Z

172.70.90.109: Not wanting it to be an empty header, taking my (not-a-moan) comment and augmenting it slightly to give *some* chance of actual comic-discussion. (Though also still anticipating an Oddesseyic joke for 3001.)

;Moaning about this being the 3000th comic
I really thought he would do something special for the 3000th comic :( i was so hyped [[Special:Contributions/172.68.64.207|172.68.64.207]] 03:48, 19 October 2024 (UTC)
:Saaame:( but maybe he will do something at 3072[[User:SomeRandomNerd|SomeRandomNerd]] ([[User talk:SomeRandomNerd|talk]]) 03:57, 19 October 2024 (UTC)
:It's about blowing up the Sun and likely destroying the Solar System. That's not special enough for you? [[User:Barmar|Barmar]] ([[User talk:Barmar|talk]]) 04:01, 19 October 2024 (UTC)
::It doesn't reference its three-thousandness, unlike comics [[1000]] and [[2000]]; it could've been released any other day. [[Special:Contributions/162.158.90.25|162.158.90.25]] 04:22, 19 October 2024 (UTC)
:I was expecting xkcd 3000 for long but very busy today. I found this comic seemingly not too long after its publication, but not rather upset now [[User:物灵|物灵]] ([[User talk:物灵|talk]]) 06:40, 19 October 2024 (UTC)
:SAME! :( [[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)]) 09:22, 19 October 2024 (UTC)
:ugh me too! why didn't he do it it's so special! {{unsigned ip|172.71.151.4|01:51, 20 October 2024}}
:I was so hyped but couldn't check because I went camping-now I'm just disappointed. [[User:42.book.addict|42.book.addict]] ([[User talk:42.book.addict|talk]]) 22:06, 20 October 2024 (UTC)
Randall really did fall off 😭 [[User:CalibansCreations|'''Caliban''']] ([[User talk:CalibansCreations|talk]]) 10:23, 19 October 2024 (UTC)

xkcd 4000 is coming out on 10 march 2031 unless randall uploads inconsistently during those 1000 comics (very likely) unrelatedly i pronounce TŻO as /tiː ʐɛd oʊ/. is that normal? [[User:MinersHavenM43|MinersHavenM43]] ([[User talk:MinersHavenM43|talk]]) 04:10, 19 October 2024 (UTC)

:You (as I) seem to be rightpondian (or have a smattering of ¿polish? culture still within your leftpondian upbringing). I suspect it would be more /ʐi/ for Randall and most of his countrypeople (or straight /zi/, if not a different attempt at the dot-diacritic). It might more correctly be pronounced as /ˈʐɛt/, however, if I have the correct origin. [[Special:Contributions/172.70.162.2|172.70.162.2]] 06:12, 19 October 2024 (UTC)
::actually i am brazillian, my english is a mix of primarily american and british english. my understanding of polish came from when i was really into linguistics a few years ago. [[User:MinersHavenM43|MinersHavenM43]] ([[User talk:MinersHavenM43|talk]]) 12:34, 19 October 2024 (UTC)

That’s it? That’s 3000? [[Special:Contributions/162.158.154.245|162.158.154.245]] 04:20, 19 October 2024 (UTC)

3000th comic! Yay? [[User:Beanie|Beanie]] [[User talk:Beanie|talk]] 10:29, 19 October 2024 (UTC)
sad[[Special:Contributions/172.68.54.32|172.68.54.32]] 11:01, 19 October 2024 (UTC)

4096 is the next big release by standard XKCD counting? {{unsigned ip|172.69.71.190|13:54, 19 October 2024}}

wow, that's it? c'mon Randall, you made all those neat April fools comics, and you cant make something special for this [[Special:Contributions/172.69.71.130|172.69.71.130]] 16:18, 19 October 2024 (UTC)
:Even worse. He did something special for comic #[[1000]] & #[[2000]]. I was '''''SO''''' hyped! [[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)]) 18:37, 19 October 2024 (UTC)

Damn. Ever since February of this year I've been waiting with bated breath for today to see what awesome and neat thing Randall will have cooked up for 3000. Talk about a disappointment. Hopefully this is just a mistake or a misdirection, and he'll either replace this comic with the real 3000 comic or maybe release the cool comic tomorrow for 3001. [[User:Pie Guy|Pie Guy]] ([[User talk:Pie Guy|talk]]) 17:25, 19 October 2024 (UTC)
:{{w|3001: The Final Odyssey|3001}} is a much more geeky number than 3000, anyway... (or maybe 3072). I ''shall'' definitely be anticipating something good for 4096, though. [[Special:Contributions/172.68.205.178|172.68.205.178]] 19:13, 19 October 2024 (UTC)

And the disappointment of the year award goes to… [[Special:Contributions/172.70.110.93|172.70.110.93]] 02:35, 20 October 2024 (UTC)

Perhaps Comic 3141 could have some reference to being the first 4 decimal digits of pi? Disappointed nonetheless. {{unsigned ip|172.70.127.139|17:36, 20 October 2024}}

==Actual comments about this comic==

Randall's "Comic 3000" joke is... that he's actually ''found'' the funding, as we're soon to discover. (Any guesses where the neutron star came from?) [[Special:Contributions/172.70.58.30|172.70.58.30]] 10:03, 20 October 2024 (UTC)

Talk:2996: CIDABM

2024-10-18T19:57:51Z

172.70.90.109:

Still makes more sense than BRICS. [[Special:Contributions/172.71.144.34|172.71.144.34]] 19:35, 9 October 2024 (UTC)

I for one think Isla Grande de Tierra del Fuego is a classic example of an island that does NOT dangle awkwardly at the bottom of a mainland. It's almost a case study in graceful, near-seamless islandic placement relative to the mainland, such that if you informed someone that it's technically an island they may do a double-take and have to squint at a map before they believe you. As further evidence for this perspective, I commend to the reader [[2256: Bad Map Projection: South America]] where IGdTdF is only represented as truly distinct from the mainland in 1 out of the 36 South Americas represented - and this is probably more for comedy value than anything else, since in this map, IGdTdF ITSELF has been replaced by another entire (and extremely small) South America! -MeZimm [[Special:Contributions/172.68.3.4|172.68.3.4]] 22:42, 9 October 2024 (UTC)

Very tempted to make an official Explanation addition that if we named the group for the members (like BRICS has been, and which originally had me trying to identify the islads by shape and what initials they might have, before my eyes finally drifted down to their actual names), it would ''almost'' make a very unfortunate initialism indeed. And the one it does make is basically the same in phonetic terms... I won't actually do so. But I am left wondering if this was actually intended as an additional unspoken bit of Randall's humour, in fact. [[Special:Contributions/172.69.195.94|172.69.195.94]] 23:00, 9 October 2024 (UTC)

I shall create my own island below the UK to join this Coalition. [[User:CalibansCreations|'''Caliban''']] ([[User talk:CalibansCreations|talk]]) 06:55, 10 October 2024 (UTC)

dunon why, but my first thought on the alt-text was that it was a joke about south america being an island below north america. ~~storm. {{unsigned ip|172.69.60.185|11:27, 10 October 2024}}

Anyone else think Sri Lanka is a really weird shape for an island? It just doesn't make sense to me, geologically speaking [[User:Tommyds|Tommyds]] ([[User talk:Tommyds|talk]]) 13:53, 10 October 2024 (UTC)

I feel like we should have a [blank] news category. That seems to come up a lot. {{unsigned|Ok123|17:55, 10 October 2024}}
:agreed. I’ll bring it up in the community portal. [[User:42.book.addict|42.book.addict]] ([[User talk:42.book.addict|talk]]) 20:51, 10 October 2024 (UTC)
The group flatly rejected the application for membership of North America South of Two Ocean Creek. [[User:RegularSizedGuy|RegularSizedGuy]] ([[User talk:RegularSizedGuy|talk]]) 02:34, 11 October 2024 (UTC)

I wonder if it's worth mentioning the "theory of continental drip", postulated in one of [https://en.wikipedia.org/wiki/Iain_Banks Iain Banks]'s novels. [[Special:Contributions/172.70.86.172|172.70.86.172]] 06:28, 11 October 2024 (UTC)

Tasmania Is an island dangling from a larger island. [[User:SomeRandomNerd|SomeRandomNerd]] ([[User talk:SomeRandomNerd|talk]]) 01:59, 16 October 2024 (UTC)

The two small islands marked as dots between Tasmania and the mainland also happen to be part of the Tasmanian state.--[[User:Ozhamada|Ozhamada]] ([[User talk:Ozhamada|talk]]) 02:18, 16 October 2024 (UTC)
:I'm an aussie and that's learning for me! However they aren't marked on the map. [[Special:Contributions/172.68.210.14|172.68.210.14]] 08:39, 16 October 2024 (UTC)
::It might depend upon what resultion image you're looking at. The two (actually three, two to the right) dots north of Tasmania's corners (King and Flinders/Cape Barren) are marked the grey of the mainland rather than the black of all other points Tasman.
::The south-eastern-edge islands may get a decent showing (in full black), given the resolution, though the anti-aliasing hints at features (e.g. Bruny/Maria) that may or may not be represented there for reasons of typical Randallian illustration.
::For obvious reasons of scale/coverage, though, Macquarie Island doesn't festure at all! [[Special:Contributions/172.70.85.128|172.70.85.128]] 15:28, 16 October 2024 (UTC)

No love for Cuba, Madagascar, or Sumatra? [[Special:Contributions/172.69.23.49|172.69.23.49]] 19:43, 18 October 2024 (UTC)
:Cuba and Sumatra are in more complex relationships than being ''an'' island "dangling below". (Other islands/continents all around them, generally moreso than the cited examples which tend to be the predominant islands at their scale and in their context.) Madagascar hangs off the 'side' of Africa (maybe below Eurasia, if Africa wasn't counted). Obviously there's leeway of interpretation, but it's part of why Tierra Del Fuego is mentioned as an iffy candidate.
:There are probably other edge-candidates (NZ South Island, c.f. North Island, etc? Though Stewart Island c.f. South Island might be more apt)... [[Special:Contributions/172.70.85.62|172.70.85.62]] 19:53, 18 October 2024 (UTC)

2995: University Commas

2024-10-09T08:18:28Z

172.70.90.109: /* Explanation */

{{comic
| number = 2995
| date = October 7, 2024
| title = University Commas
| image = university_commas_2x.png
| imagesize = 580x273px
| noexpand = true
| titletext = The distinctive 'UCLA comma' and 'Michigan comma' are a long string of commas at the start and end of the sentence respectively.
}}

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

The use of commas in the English language is {{w|Comma#Uses in English|famously disputed}}, most relevantly among publishers and academics. This comic imagines that all possible (and some improbable) comma positions in an example sentence are associated with different universities. This applies to commas which should ''always'' be present in a list, optional commas elsewhere in the sentence (which have nothing to do with a list, such as after the word "please") and blatantly erroneous commas (which should ''never'' be present in a sentence, e.g. immediately prior to the {{w|full stop}}/period).

The Oxford comma (a.k.a. {{w|Serial comma}} or, despite how this comic represents it, the ''actual'' Harvard comma) is a comma between the penultimate item in a list and its conjunction (typically ''and'' or ''or''), to echo all the commas (at least one) that act as {{w|Comma#List separator and the serial (Oxford) comma|placeholders for the conjunction}} in-between all prior members of the list. For instance, you might write "red, white, and blue" (with the Oxford comma) or "red, white and blue" (without it). Some style guides, such as ''{{w|The Oxford Style Manual}}'' published by {{w|Oxford University Press}}, (unsurprisingly) recommend using it, while other similarly authoritative guides recommend against it. Though even those with either recommendation may suggest its (non-)use in situations where this avoids an ambiguity arising from the normally recommended choice.

One {{w|Serial comma#Ambiguity|common example}} showing the need for an Oxford comma is "To my parents, Ayn Rand''',''' and God". Without the comma (as in: "To my parents, Ayn Rand and God"), it may read that the author's parents are Ayn Rand and God. If such confusion is to be avoided, reordering the list is a common way to avoid ambiguity, for example, "To Ayn Rand, God and my parents" is one such reordering. However, the use of an Oxford comma in this version might imply the deification of Ayn Rand. Conversely, if the sentence was instead to be "To my mother, Ayn Rand, and God", with such a comma, there arises the possibility of an assertion that one's mother is Ayn Rand, whereas "To my mother, Ayn Rand and God" does not let one fall into that trap.

In the most common interpretation the example sentence reads (with proper punctuation and bracketed Oxford comma): "Please buy apples, mac and cheese, milk[,] and bread."

"Mac and cheese" is a common short name for {{w|macaroni and cheese}} in the US and Canada. When we join just two items together, e.g. to name a compound food such as "peanut butter and jelly", "fish and chips" or "steak and eggs", we don't put a comma before "and". It is in the use of such compounded items, as a singular list item, where some confusion can arise. Alternate forms ("fish'n'chips", "PB&J") can put emphasis upon the low-level linking of the components, the outer list can be rewritten (e.g. with semicolon separation) or the reader can be left to logically assume where such a commonly encountered pairing is not part of the wider list. A difference in conjunction can also help to clarify, as in "A good choice of breakfast is ham and eggs, sausage and eggs or sausage and beans, but not ham and beans", which is ''unlikely'' to be accidentally misunderstood (including as options such as "sausage + (eggs or additional sausage) + beans" or "sausage + ('non-ham' beans) + further beans").

However, most of the commas are possible punctuation marks in a specific pragmatic reading of the sentence:

{| class="wikitable" style="margin:auto"
|-
! Comma name !! Notation !! Explanation
|-
| Harvard comma || Please, buy apples, mac and cheese, milk[,] and bread. || Emphatic plea, marked by a sub-clause separator. (Note that "Harvard comma" is already a common synonym for the Oxford comma, in its context.)
{{w|Harvard University}} is one of eight {{w|Ivy League}} universities in the United States.
|-
| Yale comma || Please buy, apples, mac and cheese, milk[,] and bread. || A merchant's plea to their customer, marked by a sub-clause separator. This makes the sentence a sentence fragment but this is not uncommon in speech. The implication may be that the list of items are those for sale or that there is a promotion around those items specifically.
{{w|Yale University}} is one of eight Ivy League universities in the United States.
|-
| Stanford comma || Please buy apples, mac and cheese, milk[,] and bread. || Mandatory separator in a list. Without this comma, "apples" could be interpreted as an adjective to "mac and cheese".
{{w|Stanford University}} is one of the prominent universities in the United States. It is located in Silicon Valley, a short distance from the headquarters of {{w|Apple Inc.}} The Stanford comma between "apples" and "mac" is probably necessary there to distinguish discussions of the food products from discussion of the computer products.
|-
| Columbia comma || Please buy apples, mac, and cheese, milk[,] and bread. || A plea to buy apples, cheese, milk and bread, directed at a person called Mac, whose name is stylized as "mac".

Alternatively, a plea to buy apples, a raincoat, cheese, milk[,] and bread. The first 'and' would then be superfluous, but this could reflect the speaker adding the last two items in the moment to an initial request for the first three.

{{w|Columbia University}} is one of eight Ivy League universities in the United States.
|-
| Cambridge comma || (Please buy apples, mac, and, cheese being unavailable, milk[,] and bread.) || Valid with a qualifying sub-clause; invalid in the example sentence. Also requires "mac" to be an item of its own, not a part of "mac and cheese".
The {{w|University of Cambridge}} is one of the two eponymous {{w|Oxbridge}} universities in the United Kingdom. Not to be confused with {{w|Cambridge, Massachusetts#Higher education|other establishments}} in (or originally in) Cambridge, Massachusetts.
|-
| Cornell comma || Please buy apples, mac and cheese, milk[,] and bread. || Mandatory separator in a list.
{{w|Cornell University}} is one of eight Ivy League universities in the United States. It has {{w|Cornell Dairy|its own dairy farm}}, which is why the Cornell comma is placed between dairy products, "cheese" and "milk".
|-
| Oxford comma || Please buy apples, mac and cheese, milk, and bread. || The {{w|Oxford comma}}, as discussed above, is a comma often used in lists (with more than two elements) to further separate the last two elements and thus attempt to avoid ambiguity. In this case, it is unlikely that there would be confusion as to how to interpret the given list, with or without this comma.
The {{w|University of Oxford}} is the other eponymous Oxbridge university in the United Kingdom.
|-
| Princeton comma || (Please buy apples, mac and cheese, milk[,] and, bread being out of stock, oats.) || Valid with a qualifying sub-clause; invalid in the example sentence.
{{w|Princeton University}} is one of eight Ivy League universities in the United States.
|-
| MIT comma || (Please, buy, apples, mac, and, cheese, milk, and, bread,.) || Possible reference to [https://stackoverflow.com/questions/11597901/why-are-trailing-commas-allowed-in-a-list trailing commas sometimes used in programming], which would be associated with a university highly specialized in technology. If each of these words were identifiers, then including all commas would be a valid way to express a list in some languages (though using a period to indicate the end of a list is uncommon).
The {{w|Massachusetts Institute of Technology}} is one of the prominent universities in the United States.
|-
| UCLA/Michigan comma(s) || (,,,…,,,Please, buy, apples, mac, and, cheese, milk, and, bread,.,,,…,,,) || '''Title text proposal''', each establishment being perhaps responsible for both or either sets of commas. Can perhaps relate to rather specific quotation or quote-separation contexts not in common use.
The {{w|University of California, Los Angeles}} and the {{w|University of Michigan}} are two more well known universities in the United States.
|}

Depending upon who you talk to, the two establishments referenced by the title text may not be considered quite as prominent or outstanding as the Ivy League universities, or others mentioned here, hence their relegation to title text punchline. But (actual Ivy Leaguers) {{w|Brown University}}, {{w|Dartmouth College}} and the {{w|University of Pennsylvania}} were not referenced at all, for one reason or another; for example, the very idea of a "Brown comma" might more readily resonate with the concept of the {{w|Brown note}}.

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

:[A sentence is written in greyed-out text, with the commas in black and each labeled with an arrow.]
:Please''',''' buy''',''' apples''',''' mac''',''' and''',''' cheese''',''' milk''',''' and''',''' bread''','''.

:[The labels are as follows, in order from left to right:]
:Harvard comma
:Yale comma
:Stanford comma
:Columbia comma
:Cambridge comma
:Cornell comma
:Oxford comma
:Princeton comma
:MIT comma

:[Caption below the panel:]
:The Oxford one is the most famous, but many major universities have their own comma.

==Trivia==
[[Randall]] appears to be a fairly regular user of the Serial/Oxford Comma himself, with the most recent example being in the title text of [[2985: Craters]]. This is clearly out of habit or preference, as it is not required for clarification purposes. Yet it seems he also appreciates the conflicting viewpoints inherent to such a style opinion. He later completely avoided the use of list-commas in a (three-part) list within the comic text of the successive [[2986: Every Scientific Field]], possibly for rhetorical reasons.

This very wiki currently reminds anyone editing a page that their contributions "may be edited, altered, or removed", which is also not a syntactical necessity beyond adherence to the Oxford styling. Later, in the same paragraph of text, it also uses structure of "…, or … or …", but for different grammatical reasons that are unrelated to serial/list commas.

{{comic discussion}}

[[Category:Comics with lowercase text]]
[[Category:Language]]

Talk:2992: UK Coal

2024-09-30T21:11:20Z

172.70.90.109:

nuclear power is better in all aspects anyway [[Special:Contributions/172.70.90.105|172.70.90.105]] 19:40, 30 September 2024 (UTC)

Here before the explanation :) [[Special:Contributions/172.71.154.9|172.71.154.9]] 20:12, 30 September 2024 (UTC)

I made an initial explanation, but it needs a lot of work still; hopefully someone with more experience editing on this wiki can improve it (this is my first explanation) [[User:MathEnthusiast|MathEnthusiast]] ([[User talk:MathEnthusiast|talk]]) 20:27, 30 September 2024 (UTC)

: the sole rabbit-run coal plant was shut down in the 1990s.
Just checking, but this isn't referencing some particularly egregious, badly managed coal power plant in the U.K., is it? [[User:Fephisto|Fephisto]] ([[User talk:Fephisto|talk]]) 20:43, 30 September 2024 (UTC)

:I don’t think so; I believe it’s simply that Ratcliffe-on-Soar power plant is the last UK coal plant to be shut down.

Randal uses SI units in the formula, as every person with the tiniest bit of tech/science education would, but then gives the result in inches (3.15) instead of centimeters (8.0). Americans are weird. [[Special:Contributions/162.158.110.162|162.158.110.162]] 20:56, 30 September 2024 (UTC)

:^^ This!

One should not forget that the 3 inches are very unevenly distributed. Some areas on top of coal mines have sunken in much further creating new flooding risks that require continued future interventions.
--[[Special:Contributions/172.64.236.34|172.64.236.34]] 21:08, 30 September 2024 (UTC)

2989: Physics Lab Thermostat

2024-09-24T09:43:03Z

172.70.90.109: /* Explanation */ flow

{{comic
| number = 2989
| date = September 23, 2024
| title = Physics Lab Thermostat
| image = physics_lab_thermostat_2x.png
| imagesize = 264x296px
| noexpand = true
| titletext = Hopefully the HVAC people set it to only affect the AIR in the room.
}}

==Explanation==
{{incomplete|Created by a BOLTZMANN BRAIN - Given the calculations mentioned in the comment, it would seem that the thermostat works normally in the way that turning it clockwise will increase the temperature. This should be mentioned and some kind of calculation like the one mentioned in comments section could be added for clarity/reference. Do NOT delete this tag too soon.}}

A thermostat is often used to regulate the operation of heating and/or cooling for a room. This may take the form of a simple dial, graduated by desired temperature values marked Celsius or, in {{w|Fahrenheit#Usage|some obscure parts of the world}}, Fahrenheit. Typically a person is expected to know what sort of temperature they will find comfortable, to have heating/cooling effects kick in as the wall-device detects a temperature more than a certain amount below/above that ideal. The basic design of a physical wall-mounted dial might relate the relative position of the dial against the current state of a {{w|Bimetallic strip#Thermostats|bimetallic coil}}, switching {{w|Bang–bang control|on or off}} the relevent systems once conditions locally drift away from the chosen ideal.

In this comic, the thermostat is installed in a physics lab, with those that work there clearly being expected to be familiar with the {{w|Boltzmann constant}}, a more fundamental method of measuring temperature which relates the average kinetic energy of a particle in a gas with the temperature of that gas. The Boltzmann constant is defined as 1.380649 × 10^-23 J/K (joules per kelvin).

Thus Randall imagines a physics lab having a dial that can alter the constant between 1.418 x 10^-23 J/K and 1.351 x 10^-23 J/K. If the average kinetic energy of gas particles remains constant when moving the dial, then changing the Boltzmann constant would change how this average energy is measured in {{w|kelvin}} (and therefore {{w|Conversion of scales of temperature#Comparison of temperature scales|any other measure}} of temperature), thus "changing the temperature". Rather than controlling the nature of the airflow into the lab (or convection heaters/coolers around it), it might be implied that this applies the effect directly across the whole lab at a fundamental level. Changing one of the fundamental constants of thermodynamics would have dangerous effects.{{acn}} 

There have previously been control panels for properties of the universe in [[1620: Christmas Settings]] and [[1763: Catcalling]].

Because the Boltzmann constant is primarily concerned with the nature of temperature within gas, the titletext expresses concern that it might not only be applied to the air in the room. Aside from the possibility that those responsible for the {{w|heating, ventilation, and air conditioning}} (a.k.a. HVAC) of the room could perhaps directly enhance or suppress the temperature in all the solids and liquids within the room, in unknown and not necessarily conducive ways, there may also be a secondary joke in which {{w|high voltage}} forms of {{w|alternating current}} (also refered to as HVAC) are influenced, in the related but distinct use of the measure for '{{w|Boltzmann constant#Thermal voltage|thermal voltage}}'.

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

:[A black circular dial is shown with a white indicator line at the upper right. The label above the dial, enclosed in a rectangular box, says:]
:Local Boltzmann Constant
:[The two extremes of the dial are labeled as follows, the first value on the left and the second value on the right:]
:1.418 x 10-23 J/K
:1.351 x 10-23 J/K
:[The indicator line is pointing to a position on the dial somewhere around 1.375 x 10-23 J/K.]
:[Caption below the panel:]
:Physics Lab Thermostat

{{comic discussion}}
[[Category:Physics]]

2980: Lava Lakes

2024-09-03T14:11:30Z

172.70.90.109: /* Explanation */

{{comic
| number = 2980
| date = September 2, 2024
| title = Lava Lakes
| image = lava_lakes_2x.png
| imagesize = 709x272px
| noexpand = true
| titletext = Hey, golf balls float on lava, so this should make recovering them from the hazards easier.
}}

==Explanation==
{{incomplete|Created by A GOLF BALL <s>FLOATING ON</s> <s>MELTING IN</s> CAUSING AN EXPLOSION IN THE 6TH LAVA LAKE (FORMER GOLF COURSE) - Please change this comment when editing this page. Do NOT delete this tag too soon.}}
The comic shows [[Megan]] (or [[Danish]]) talking to [[Black Hat]], mentioning the common myth that there's a lava lake in the crater of every volcano. She points out that there are really only around five lava-filled volcano craters in the world right now. Black Hat responds to this by creating a new one on a nearby golf course. Given that Megan was still waiting when Black Hat came back, the attention span of most people is shorter than the time it takes lava lakes to form and that sane people do not build golf courses directly over active volcanoes, Black Hat would've needed to dig at least 8 kilometers of earth within a very short timespan, which is impossible for a normal human being. Also, since this action was prompted by Megan's remark, Black Hat could not have built or moved anything capable of making a lava lake to the golf course beforehand.

The title text mentions that golf balls will float on lava, making recovering them from {{w|Hazard (golf)|hazards}} easier (man-made obstacles such as sand or water, with sinking in the latter being the more obvious hazard to change). The density of a normal golf ball is about 1.13 grams per cubic centimeter, which is significantly less than the 2.4 ~ 2.9 grams per cubic centimeter of lava. It ''would'' be very easy to retrieve golf balls from lava because of this, if it were not for the fact that lava is hot. Lava is around 800 °C, while most golf balls are made of [https://thegolfmine.com/are-golf-balls-flammable/ materials that ignite] at 400-500 °C, and it could also be somewhat awkward for any hand that goes to retrieve it. Not to mention that the interaction of lava with solids at {{w|Standard temperature and pressure|STP}} [https://www.usgs.gov/media/videos/rockfall-halemaumau tends to be violent]. Attempts to retrieve golf balls from lava would be profoundly dangerous, and have a vanishingly small probability of success.

These may be the 5 volcano lakes that the comic references ({{w|Lava lake#List of volcanoes having displayed past or present lava lake activity|source}}):
* {{w|Erta Ale}} in Ethiopia
* {{w|Mount Erebus}} on Ross Island, Antarctica
* Kīlauea {{w|Halemaʻumaʻu}} on Hawaiʻi (Big Island) [no active lake in September 2024]
* {{w|Mount Nyiragongo|Nyiragongo}} in the Democratic Republic of the Congo
* {{w|Mount Michael}} on Saunders Island, South Sandwich Islands

==Transcript==
:[Megan and Black Hat are talking, with Megan holding up one hand towards Black Hat]
:Megan: People think volcano craters are full of lava, but that’s rare. There are only five or so lava lakes in the world right now.

:[Black Hat puts one hand up to his chin]
:Black Hat: Interesting.

:[Black Hat walks out of frame off to the right]

:[Megan stands while three distinct off-panel sound effects come from the right]
:Rumble
:Crash
:BOOOOM

:[Black Hat walks back into frame]
:Megan: What did you—
:Black Hat: There are six now.
:Off-panel voice to the right: Why is the golf course erupting!?

{{comic discussion}}

[[Category:Comics featuring Megan]]
[[Category:Comics featuring Black Hat]]
[[Category:Volcanoes]]
[[Category:Sport]]
[[Category:Physics]]

1052: Every Major's Terrible

2024-08-23T04:35:51Z

172.70.90.109: Undo revision 349252 by 162.158.146.235 (talk) Is missing some words (and the ":"). Not really sure what was intended, so can't put in what the editor managed to delete before submit.

{{comic
| number = 1052
| date = May 7, 2012
| title = Every Major's Terrible
| before = [[#Explanation|↓ Skip to explanation ↓]]
| image = every_majors_terrible.png
| titletext = Someday I'll be the first to get a Ph. D in 'Undeclared'.
}}

==Explanation==
[[Randall]] has written a song called ''Every Major's Terrible'' and this comic illustrates the song. In this song the term {{w|Major (academic)|Major}} refers to the US version of an academic major. The point of the song is that it makes no sense to pick any major since they are all terrible!

The header notes that the song is written to the tune of the satirical {{w|Major-General's Song}} from {{w|Gilbert and Sullivan's}} 1879 comic opera ''{{w|The Pirates of Penzance}}''. The song satirizes the idea of the "modern" educated British Army officer of the latter 19th century. {{w|Major general}} is a military rank in the United Kingdom and many other countries. (As of August 2018, the title text has been changed to [https://www.youtube.com/watch?v=DhaEjgnmy3c a link to the said song]). The meter in the Major-General's Song is {{w|iambic octameter}}, which means that in each line there are eight iambs, where an iamb is two syllables in an unstressed-stressed pattern. Therefore, each line contains 16 syllables.

The panels show Randall's rewritten lyrics to the song. Below each of the three verses are described in detail (go to [[#Verse 1|Verse 1]], [[#Verse 2|Verse 2]] or [[#Verse 3|Verse 3]]). Each verse ends with "Just put me down as 'Undecided' - Every Major's Terrible", which gives the song its name — and "Major's Terrible" is similar enough to "Major General", the corresponding lyrics in the original version, to serve as a callback. The last line of the first verse in each song goes as follows:
*Original: I am the very model of a modern Major-General
*Randall's: Just put me down as undecided- every major's terrible

The lyrics are commonly rewritten, the most famous rewrite likely being {{w|The Elements (song)}} by {{w|Tom Lehrer}} which is also mentioned below the main header. This song is also [https://www.youtube.com/watch?v=AcS3NOQnsQM available on-line].

His last suggestion, "{{w|Supercalifragilisticexpialadocious}}", from ''{{w|Mary Poppins}}'', is another fast-paced patter-song with a somewhat similar tune, though it doesn't fit quite so well, and the match falls apart at the end of the fourth line, when the "Um-diddly"s start up — still, it's better than nothing.

There are at least two performances of this xkcd song online where the transcription is shown to make it easier to understand the text:
*A video with each major acted out by the [http://www.youtube.com/watch?v=seGpYa8UO0E SFU Choir - Every Major's Terrible].
*A solo with piano: [https://www.youtube.com/watch?v=pRexBMPeRTo Every Major's Terrible' by Ben Miller].
**See also this article [http://www.uproxx.com/gammasquad/2012/08/ben-miller-xkcd-every-majors-terrible/ Xkcd's 'Every Major's Terrible' Is Now A Real Song].

Regarding the title text: "Undeclared" is sometimes called "General Studies". Most U.S. universities will not let you get a degree in this, let alone an advanced degree such as a {{w|Ph.D.}} Also, it should probably be noted that this song refers to U.S.-like university systems, in other countries, one will study little to nothing outside your major, making it more-or-less impossible to be undecided as to major.

It should also be noted that the title text fits the cadence of the first line of the song, possibly teasing a fourth verse. As to what that consists of, only Randall knows.

===Verse 1===
;Panel 1, ''Philosophy's just math sans rigor, sense, and practicality'': [[Cueball]] is posing as {{w|Rodin}}'s {{w|The Thinker}}, a common symbol for {{w|philosophy}}. The equation in the background (two plus light bulb equals sailboat) is nonsense, hence "{{w|math}} sans rigor, sense or practicality" ([http://www.thefreedictionary.com/sans sans] meaning without).

;Panel 2, ''And math's just physics unconstrained by precepts of reality.'': A cannon is firing. However, instead of going in the normal parabolic arc (a precept of reality and thus {{w|physics}}), the cannonball splits and splits again, so that it looks like a {{w|bifurcation diagram}} from {{w|chaos theory}}. The dashed line indicates the cannonball's trajectory, which bifurcates twice, although the sum of the momentums of the four resulting (1/4 sized?) cannonballs is presumably mathematically identical to the original.

;Panel 3, ''A business major's just a thing you get so you can graduate'': {{w|Business education|Business}} is the most common major, often seen as a practical choice applicable to a wide variety of careers, or, as the comic illustrates, preferred by those who just want an easy way to graduate. Cueball gets his diploma and runs away from the dean on the podium while shedding both his robe and his {{w|square academic cap}} (or Mortarboard).

;Panel 4, ''And chemistry's for stamp collectors high on methylacetate.'': Stamp collecting refers to the [https://en.wikiquote.org/wiki/Ernest_Rutherford famous quote] by {{w|Ernest Rutherford}}, "All science is either physics or stamp collecting." {{w|Methyl acetate}} is a solvent that for instance can be used to remove stamps from their envelope (although water will do the same). The stamps in the background form the {{W|periodic table}} of the chemical elements. And since {{w|chemistry}} is not physics, according to the quote, {{w|chemists}} must be stamp collectors. [[Ponytail]] is depicted wearing googles, holding an {{w|Erlenmeyer flask}}, and dizzy from being high on methylacetate.

;Panels 5 and 6, ''Why anyone who wants a job would study lit's a mystery'', ''Unless their only other choice were something like art history.'': These lines, both sung by Cueball, refer to subjects where a majority of graduates will end up unemployed or eventually working in a field outside their majors. Topics such as {{w|Literature}} or {{w|Art History}} are often and historically said to be in this category — although from [http://www.studentsreview.com/unemployment_by_major.php3?sort=Rate actual statistics], it is clear that there are far worse majors these days.

;Panels 7 and 8, ''A BA in communications guarantees that you'll achieve'', ''A little less than if you'd learned to underwater basket-weave'': Here Cueball first has a major in {{w|Communication studies|Communications}} and next he is seen underwater with a basket. {{w|Underwater basket weaving}} is a commonly used metaphor for any college major that is easy and/or worthless. "Communications" is a major chosen by people interested in news broadcasting or other media. Note that, if following the original music exactly, the line "A little less than if you'd learned to underwater basket-weave." will be repeated three times by the chorus after these panels.

;Panel 9, ''I'd rather eat a Fowler's toad than major in biology,'': We see Cueball holding a frog out in front of him while taking his hand to his head (in disgust?). A {{w|Fowler's toad}} is a relatively common toad in the eastern US, and a stereotype of studying {{w|biology}} is a frog {{w|dissection}}, which is likely part of the reference, albeit oblique. Fowler's Toad emits a {{w|Bufo_fowleri#Behavior|noxious secretion}} that [http://www.nwf.org/wildlife/wildlife-library/amphibians-reptiles-and-fish/toads.aspx irritates skin] and thus probably also the mucous membranes in the mouth. It would thus be rather painful to eat, making it very bad for Cueball to major in biology since he would rather eat such a toad.

;Panel 10, ''And social psych is worse than either psych ''or'' sociology.'': {{w|Social psychology}} is compared to {{w|sociology}} (study of humans in society) and {{w|psychology}} (study of human minds). Psychology is represented by a {{w|serial killer}} with a chainsaw, and sociology is represented by a {{w|zombie}}. These are to the left of [[Megan]]. To her right is a zombie serial killer with chainsaw. She is standing between them undecided as to take one, the other or both. They are all terrible options...

;Panels 11 and 12, ''The thought of picking any one of these is too unbearable,'' ''Just put me down as "Undecided"—Every major's terrible.'': End of the first verse where Cueball tells his academic advisor that he is undecided as every major's terrible. He even throws away his {{w|study guide}}. Every verse ends with some variation of this couplet, and in the original tune, each of these couplets are repeated by the chorus afterwards.
:''Unbearable'' and ''terrible'' rhyme for people who have the {{w|English-language vowel changes before historic /r/#Mary–marry–merry merger|Mary-merry merger}}.

===Verse 2===
;Panel 13, ''Now, if you can't prognosticate, that's OK in seismology,'':[https://en.wiktionary.org/wiki/prognosticate Prognosticate] means "to predict". This refers to the inability of {{w|seismology}} to reliably predict catastrophic {{w|earthquake}}s, even after centuries of extensive research. The panel shows {{w|Seismic wave|seismic waves}} from a {{w|seismograph}}. The seismograph chart has four traces and about halfway across one trace begins oscillating vigorously indicating an earthquake. Five months after this comic was published several seismologists in Italy were [http://www.nature.com/news/italian-court-finds-seismologists-guilty-of-manslaughter-1.11640 convicted of crimes] that effectively stemmed from an inability to predict an earthquake. This does not go down well for the message of this panel... Their conviction was [http://www.nature.com/news/italian-seismologists-cleared-of-manslaughter-1.16313 overturned on appeal] in 2014.

;Panel 14, ''But if your hindsight's weak as well, you'd best stick to theology.'': The bearded [https://en.wiktionary.org/wiki/theologist theologist] represents {{w|Theology}} by stating the formal logic proposition shown in the illustration: "X ∴ ∃X". This says "I can describe this thing called X, therefore X exists". (However, it might not be syntactically correct, since "X" is not a formula, and there are no free variable(s) after the ∃.) This is what Anselm’s {{w|ontological argument}} for God boils down to. Briefly, it asks you to imagine the best possible deity, which, by definition, would be God. A God which exists in both reality and theory would be greater than one who exists in merely the latter. Therefore, this proposition concludes that God exists. The fatal flaw of this argument is that it can be used to prove the existence of anything (e.g. a vacuum cleaner which exists in both reality and theory is greater than one which exists merely in theory). Just because a perfect God would exist does not mean he does. Thus it has been largely rejected. (See [[1505: Ontological Argument]].)

;Panel 15, ''CS will make each day a quest to find a missing close-paren.'': "CS" is short for "{{w|Computer Science}}." Most programming languages use parentheses as part of their syntax, and often have multiply-nested parenthetical expressions. This is especially true of {{w|Lisp (programming language)|Lisp}}. It is often difficult for a programmer to determine where the unbalanced parenthesis begins or ends when the code and parentheses are not properly formatted and indented. In the panel there is one more left "(" parenthesis (13) than right ")" or ''close-paren'' (12). Unpaired parentheses were also discussed in comic [[859]].

;Panel 16, ''Virology will guarantee you'll never get a hug again.'': {{w|Virology}} is the study of {{w|infectious diseases}}. The green symbol above the central figure is the {{w|Hazard_symbol#Biohazard_sign|biohazard symbol}}, implying that people who study infectious diseases, and are therefore located near them at some points in time, will be shunned like the plague, because they're probably carrying it. Thus no hugs to Megan as three Cueballs and Ponytail lean back away from her.

;Panel 17, ''I.T. prepares you for a life of fighting with PCs nonstop.'': "I.T." is short for "{{w|Information Technology}}", a degree for people who maintain computer systems. If there is a need for an I.T. position (in which I.T. professionals are employed) there are computers which need fixing — hence the I.T. Professional is always fixing (or fighting) computers, which may or may not have been [https://web.archive.org/web/20220225163355/https://ars.userfriendly.org/cartoons/?id=19980506 "broken" by users]. In the panel Megan, wielding an axe, is in a real fight with a PC.

;Panel 18, ''As Pratchett said, "Geography's just physics slowed with trees on top."'': This is a slightly amended quote from {{w|Discworld}} author {{w|Terry Pratchett}}, from his book "{{w|Feet of Clay (novel)|Feet of Clay}}". The actual quote is "{{w|Geography}} is just physics slowed down, with a couple of trees stuck in it." But the meaning is the same, that physics also describes geography - a similar quote to the one about physics vs. stamp collections mentioned under panel 4.

;Panel 19, ''Though physics seems to promise you a Richard Feynman-like career,'': {{w|Richard Feynman}} was a 20th-century {{w|Nobel Prize|Nobel}}-laureate {{w|physicist}} known for his great sense of humor, including being photographed for one of his books while holding a {{w|bongo drum}}. Here he is depicted with the drum and with both a blond woman and Megan looking admiringly upon him. Feynman made physics seem cool, and many a young fan might choose the subject in the hope of obtaining a Feynman-like career. This is, however, very unlikely for most people as is also shown in the next panel.

;Panel 20, ''The wiki page for "Physics major" redirects to "Engineer."'': A redirect on Wikipedia is a page which immediately sends the visitor to a different page. This implies that the title of the first is either a synonym or a sub-topic of the second. Physics majors usually learn to code, and the standard joke is that they invariably get hired as {{w|computer programmers}} after graduation, but here in this comic they get hired as {{w|engineers}}. This relates back to the previous panel, as it is here shown that most of those that major in physics end up as engineers and not like Feynman. The Wikipedia page physics major didn't actually exist when this comic was published. It was created the same day, but as a [https://en.wikipedia.org/w/index.php?title=Physics_major&redirect=no redirect] to {{w|physics education}}. It is such a redirect page that is shown in the panel. In the subsequent days, there were dozens of instances of people changing it to redirect to engineer, usually reverted within minutes. The redirect page was ''fully protected'' and locked for editing. As with the underwater basket-weaving line in the first verse, after the soloist sings this, the line would be repeated three times by the chorus.

;Panels 21 and 22, ''They say to study history or find yourself repeating it,'' ''But all that it prepares you for is forty years of teaching it.'': This uses a version of a quote by {{w|George Santayana}} (although often attributed to others as well), ''Those who cannot remember the past are condemned to repeat it'' as a reason to study {{w|history}} — only to be followed by an indication that by studying history as a major, you will only be prepared to become a history teacher, and you will then spend the rest of your life teaching history. The first panel shows a flow chart that will lead you to repeat your sad past if you cannot remember it, and only move on to happier times if you can. In the next panel we see a [[Hairbun]] as a history teacher, with glasses and her gray hair tied up in a bun, standing in front of a green {{w|blackboard}} with three important years for her current history class.

:One connection between these years could be pivotal points in Jewish history concerning the formation of nationality: the Nurenberg Laws of 1935 removing citizenship from Jews in Germany, Israel's claims on Jerusalem, and the UN Security Council's condemnation of the treatment of Palestines by Israel.

:A more lighthearted connection, more in line with the message of learning from history, is the collapse of three notable communications towers: the wooden radio tower in Langenberg in 1935 (by tornado), a TV mast at Emley Moor in 1969 (due to ice build-up), and the Warsaw radio mast in 1991 (due to construction errors). This demonstrates various attempts and failures to learn from engineering mistakes from the past, connecting this with the earlier mentioning of physicists becoming engineers, and perhaps not taking real-world practical considerations into account (such as storms or ice build-up).

:Of course, in practice, with a narrow enough subject, there are likely to be many more examples fitting these three years. The two examples above were from general world history.

;Panels 23 and 24, ''I recognize my four-year plan's at this point not repairable,'' ''But put me down as "Undecided"—Every major's terrible.'': End of the second verse where Cueball again talks to his academic advisor saying that he is undecided. In the last of the two panel he says almost the same as at the end of the first verse. In the first, however, he mentioned his "four-year plan" which is the list of all the courses a student plans to include in their degree program. If you change majors every semester, or do not decide on one until too late, this list gets really difficult to turn into any one degree. Again these lines would be repeated by the chorus afterwards.

===Verse 3===
;Panel 25, ''Astronomers all cringe when they hear "supermoon" or "zodiac".'': {{w|Supermoon}} is a term invented by {{w|astrologers}} in the 1970s, with no significance in {{w|astronomy}} other than being the co-occurrence of orbital {{w|perigee}} and full-moon. But it comes up often in the press, linked to supernatural behavior. That also Randall dislikes seems realistic and he also "mocked" the term soon after in [[1080: Visual Field]] and then finally confirmed what he thought about the term directly when he published [[1394: Superm*n]]. This was the first comic referencing supermoon, here is [[:Category:Supermoon|a list]] of all such comics. The {{w|zodiac}} is the circular band in the sky containing the apparent path of the sun, moon and planets. Most often when people talk about it, they're referring to {{w|astrology}} and {{w|horoscopes}} and other pseudo-scientific notions which often lead to conversations which are frustrating to astronomers, like the bald, bearded one ({{w|Phil Plait}}?) from the panel.

;Panel 26, ''Agronomy's a no-go; I'm a huge agorophobiac.'': {{w|Agronomy}} is the science of farming, while {{w|agoraphobia}} is the fear of wide open spaces. Fields, where most farming happens, are wide open spaces. In the panel an anxious Cueball is standing near a fence on an open field with a tractor. Presumably he may be OK inside the tractor, but once he gets outside he becomes anxious.

;Panel 27, ''I'm too ophiophobic to consider herpetology,'': {{w|Herpetology}} is the study of {{w|reptiles}} and {{w|amphibians}}, while {{w|ophiophobia}} is the fear of {{w|snakes}} (a reptile). The panel shows sweating Cueball holding his hands to his mouth while looking at a green snake asking for his love? It is possible that Cueball is afraid of the snake, who is harmless and just wants to be friends.

;Panel 28, ''And I can't stomach any part of gastroenterology.'': As the pun suggests, {{w|gastroenterology}} is the study of the human digestive system and the image shows the human {{w|stomach}}. To [http://idioms.thefreedictionary.com/cannot+stomach not be able to stomach something] means you can't stand or tolerate this thing.

;Panel 29, ''While pre-med gives you twitchy-eyed obsession with your GPA,'': {{w|Pre-med}} (pre-medical) is a major chosen by students hoping to go on to {{w|medical school}} to study {{w|medicine}} and eventually become {{w|Doctor of Medicine|doctors}}. Medical school is extremely competitive and usually requires a very high undergraduate {{w|GPA}} for prospective students. Hence we see a pre-med student holding all his grades.

;Panel 30, <tt>a poetry degree bespeaks bewildering naïveté.</tt>: The text is in all lower-case, a different font and strangely laid out compared to the text in all the other panels. All-lower-case and "free" layout are both associated with 20th century "{{w|Modernist}}" {{w|poetry}}, especially the works of {{w|E. E. Cummings}}. Ponytail is actually reciting this line of the song.

;Panels 31 and 32, ''TV's behind the rush into forensic criminology'', ''(Or so claims meta-academic epidemiology).'': This refers to how {{w|forensic}}-{{w|criminology}} shows, specifically {{w|CSI: Miami}} (Crime Scene Investigation: Miami) as shown on the TV screen in both panels, often dramatize, exaggerate or otherwise confuse the science behind forensics; this gives people unrealistically glamorous views of the career, thus encouraging them to join it. {{w|Epidemiology}} is the study of causes and effects of events and trends. We see a pipe smoking epidemiologist standing with Ponytail and watching CSI - presumably making wild claims on cause and effect based only on what they see on TV. This is, again, the point where the chorus joins in three times, as in the previous two verses.

;Panels 33 and 34, ''By dubbing econ "dismal science" adherents exaggerate;'' ''The "dismal"'s fine - it's "science" where they patently prevaricate.'': "Econ" is short for "{{w|economics}}". {{w|Thomas Carlyle}} declared economics "{{w|the dismal science}}" in the {{w|Victorian era}} as a derogatory alternative name. {{w|Economists}} often claim that economics is a {{w|science}} like any other; however, as the predictive powers of all economic theories are exceedingly weak compared to those of any science, this is disputed by those outside the field at times. It is of course also disputed by this song, in which Cueball "clearly" (see below) states that economics should not call itself a science - that is the ''dismal science'' is not derogatory enough for him.
*The above sentences can be tricky to understand due to the combination of vocabulary used and atypical word order (the former is in object-subject-verb). Here is some help in understanding them:
**[https://en.wiktionary.org/wiki/dub Dubbing] something means ''giving it a nickname''.
**[https://en.wiktionary.org/wiki/dismal Dismal] science means (in this context) ''the disappointingly inadequate science''.
**[https://en.wiktionary.org/wiki/adherent Adherents] means ''supporters''.
**[https://en.wiktionary.org/wiki/patently Patently] means ''in a clear and unambiguous manner''
**[https://en.wiktionary.org/wiki/prevaricate Prevaricate] means to ''evade the truth''.
*Using these meanings of the words the two sentences can be re-written as:
**The people who give economics the nickname "the inadequate science" are exaggerating how bad it is;
**The "inadequate" part is fine - it's "science" where they clearly are evading the truth.
:That is, Cueball is saying that "inadequate science" is too nice of a term for economics, he thinks it's not even science at all.

;Panel 35, ''In terms of choices, I'd say only Sophie's was comparable.''
;Panel 36, ''Just put me down as "Undecided"—Every major's terrible!'': End of the third verse, with yet another variant on the closing couplet. Choosing a major is compared to {{w|Sophie's Choice}}, which is any {{w|dilemma}} where choosing one cherished person or thing over the other will result in the death or destruction of the other, derived from the theme of the {{w|Sophie's Choice (novel)|novel}} of the same name, which has also been turned into a {{w|Sophie's Choice (film)|romantic drama film}}. So Cueball tells the academic advisor that choosing any of the majors over any other is as horrible as to have to choose which cherished person should die to save the other. Although in his case, it is the other way around, since he thinks all choices suck. Again these lines would be repeated by the chorus.

==Transcript==

:[The entire comic is a 4 by 9 grid. Left-justified headings above the 36 panels:]
:<big><big>Every Major's Terrible</big></big>
:to the tune of Gilbert & Sullivan's
:<big>Modern Major-General Song</big>
:(Which you may know from Tom Lehrer's ''Elements''.
:If not, just hum ''Supercalifragilisticexpialidocious''.)

:[To make it easier to read the lyrics, the lyrics text is double indented. If no one says the line it is just written after the description. Unless otherwise stated, the text is inside the frame of the panel above the drawing. If any other text is present it will be written after the lyrics.]

:[Panel 1: Cueball sitting with his chin on fist on a square, gray rock. Next to him is a mathematical expression "2 + a picture of yellow glowing light bulb = picture of Cueball in sailboat on a blue sea".]
::Philosophy's just math sans rigor, sense, and practicality
:Expression: 2+[lightbulb]=[sailboat]

:[Panel 2: A black and brown cannon standing on a green hill fires and a dashed line indicates the cannonball's trajectory. The line splits in two twice ending up at 4 cannonballs.]
::And math's just physics unconstrained by precepts of reality.

:[Panel 3: A student in robes and square academic cap receives a diploma from a dean on a brown podium, while Cueball, diploma in hand, runs away on the green lawn, arms in the air, shedding both robe and cap.]
::A business major's just a thing you get so you can graduate

:[Panel 4: Ponytail wearing goggles and holding a flask with the periodic table in the background. Three stars and circle lines around her head indicates that she is dizzy.]
::And chemistry's for stamp collectors high on methylacetate.

:[Panel 5: Cueball holds up his hands questioningly, in a shrugging pose.]
::Cueball: Why anyone who wants a job would study lit's a mystery

:[Panel 6: Cueball holding his chin.]
::Cueball: Unless their only other choice were something like art history.

:[Panel 7: The text is above this panels frame, which is only about two third of the other frames. In the frame is a close-up of Cueball as a graduate wearing yellow embroidered robe and yellow tasseled mortarboard.]
::A BA in communications guarantees that you'll achieve

:[Panel 8: The text is above this panels frame, which is only about two third of the other frames. In the frame is the same Cueball graduate, only now he is submerged in blue water. A wicker basket flows to the left, where air bubbles escape from Cueball. To the right are two black fish.]
::A little less than if you'd learned to underwater basket-weave

:[Panel 9: Cueball holding a gray frog at arm's length.]
::Cueball: I'd rather eat a Fowler's toad than major in biology,
:Frog: Ribbit

:[Panel 10: Megan indicating to the left a scruffy individual and an individual holding a chainsaw, and to the right a single scruffy individual holding a chainsaw.]
::Megan: And social psych is worse than either psych or sociology.

:[Panel 11: Cueball stands in front of a brown desk holding a gray course catalog. Behind the desk sits a man with glasses and hair at the back of his head. He sits on his gray office chair. There is a stack of papers on the desk.]
::Cueball: The thought of picking any one of these is too unbearable.

:[Panel 12: Same picture as panel 11, only now Cueball tosses the course catalog over his shoulder.]
::Cueball: Just put me down as "Undecided"—Every major's terrible.

:[Panel 13: The text is above this panels frame, which is only about two third of the other frames. In the frame is a seismograph chart with four traces; about halfway across one trace begins oscillating vigorously.]
::Now, if you can't prognosticate, that's OK in seismology,

:[Panel 14: A bearded man with white hair states a formula with his left arm lifted.]
::But if your hindsight's weak as well, you'd best stick to theology.
:Bearded man: X ∴ ∃X

:[Panel 15: Two lines with gray parenthesis.]
::CS will make each day a quest to find a missing close-paren.
:(((()((((()(
:))))())())())

:[Panel 16: Megan with a green biohazard symbol floating above her head stands alone; to the left and right three Cueball-like guys and Ponytail shun her.]
::Virology will guarantee you'll never get a hug again.

:[Panel 17: Megan running at a PC on a brown table at the left of the frame, with a brown and black axe raised over her head.]
::I.T. prepares you for a life of fighting with PCs nonstop.

:[Panel 18: The frame is a little smaller than the other frames. Above the frame is the first part of the text. In the frame is an image of a bearded man with glasses who says the rest of the text. ]
::As Pratchett said,
::Pratchett: "Geography's just physics slowed with trees on top."

:[Panel 19: A man with black hair plays on brown bongo drums while Blondie and Megan lean into the frame and look at him from left and right respectively.]
::Though physics seems to promise you a Richard Feynman-like career,

:[Panel 20: The text is above this panels frame, which is only about two third of the other frames. In the frame is screenshot of a wiki redirect page. Below the title is the normal text for such a page. This is unreadable though, although it is possible to imagine it is possible to read the first line which would say: ''From Wikipedia, the free encyclopedia''. But not the other line which would be ''Redirect page''. Below this line is an arrow down to the page the redirect points to. This is written in blue underlined letters.]
::The wiki page for "Physics major" redirects to "Engineer."
:Wiki page:
::Physics major
:: Engineer

:[Panel 21: Flowchart: a gray-brown box with a sad face chains to a decision diamond reading simply "?"; the "yes" branch leads to a yellow happy-face box while the "no" branch loops back to the initial sad face.]
::They say to study history or find yourself repeating it,
:Flow chart:
::?
::No
::Yes

:[Panel 22: The text is above this panels frame, which is only about two third of the other frames. In the frame is Hairbun as a teacher with boxy spectacles and a bun in front of a green chalkboard with three years in white. She is holding a rod and using it to point at the board.]
::But all that it prepares you for is forty years of teaching it.
:Chalkboard:
::1935
::1969
::1991

:[Panel 23: Cueball at his adviser's desk again as in panel 12, but now without any catalog and holding his arms down.]
::Cueball: I recognize my four-year plan's at this point not repairable,

:[Panel 24: Same as panel 23 except Cueball has raised a first and the adviser has his hand to his mouth.]
::Cueball: But put me down as "Undecided"—Every major's terrible.

:[Panel 25: Image of a bald man with beard and glasses. He raised both hands one as a fist the other pointing up. There are lines out from his head to the left and lightning lines out from his head to the right.]
::Astronomers all cringe when they hear "supermoon" or "zodiac".

:[Panel 26: Silhouette of Cueball, agitated, in an open field near a fence and a tractor.]
::Agronomy's a no-go; I'm a huge agorophobiac.

:[Panel 27: Cueball looking aghast at a green snake on the ground, both hands at his mouth and sweat jumping from his head. The snake is "saying" a red heart with a black question mark next to it.]
::I'm too ophiophobic to consider herpetology,
:Snake: ♥ ?

:[Panel 28: Anatomical image of a stomach in pink and red.]
::And I can't stomach any part of gastroenterology.

:[Panel 29: A man with wild hair, glasses askew, clutching folders and papers (green, blue and white), and dropping several.]
:Man:
::While pre-med gives you twitchy-eyed obsession with your GPA,

:[Panel 30: Ponytail reciting poetry; her poem is this panel's line, in a lighter, lower-case font.]
::Ponytail: <tt>a poetry degree bespeaks bewildering naïveté.</tt>

:[Panel 31: The text is above this panels frame, which is only about two third of the other frames. The frame is a TV screen with the ''CSI: Miami'' logo, CSI in yellow.]
::TV's behind the rush into forensic criminology
:TV screen:
::''' CSI: '''
::'''Miami'''

:[Panel 32: A balding man wearing glasses and holding a smoking pipe together with Ponytail holding a notebook watch a wall-mounted flat-screen TV on which the ''CSI: Miami'' logo from the previous panel is showing.]
::(Or so claims meta-academic epidemiology).
:TV screen:
:: CSI:
::Miami

:[Panel 33: Cueball is talking with his left arm raised, palm up.]
::Cueball: By dubbing econ "dismal science" adherents exaggerate;

:[Panel 34: Close-up on Cueball with right arm up and one finger in the air.]
::Cueball: The "dismal"'s fine—it's "science" where they patently prevaricate.

:[Panel 35: As panel 23 with Cueball at his adviser's desk once more though with both hands held out in front of him. The adviser is holding his hand to the side of his head.]
::Cueball:In terms of choices, I'd say only Sophie's was comparable.

:[Panel 36: Same as panel 35 except that Cueball makes a final dramatic flair spreading both arms out.]
::Cueball:Just put me down as "Undecided"—Every major's terrible!

{{comic discussion}}
[[Category:Comics with color]]
[[Category:Songs]]
[[Category:Comics featuring Cueball‏‎]]
[[Category:Comics featuring Megan‏‎]]
[[Category:Comics featuring Ponytail‏‎]]
[[Category:Comics featuring Hairbun]]
[[Category:Multiple Cueballs]]
[[Category:Comics featuring real people‏‎]]
[[Category:Supermoon]]
[[Category:Astronomy‏‎]]
[[Category:Biology‏‎]]
[[Category:Chemistry‏‎]]
[[Category:Computers‏‎]]
[[Category:Engineering]]
[[Category:Geography]]
[[Category:Geology]]
[[Category:Math‏‎]]
[[Category:Philosophy‏‎]]
[[Category:Physics‏‎]]
[[Category:Psychology‏‎]]
[[Category:Science‏‎ ]]
[[Category:Flowcharts]]
[[Category:Puns]]
[[Category:Animals]]
[[Category:Wikipedia]]
[[Category:Comics edited after their publication]]
[[Category:Comics with lowercase text]]

2835: Factorial Numbers

2023-09-29T23:10:53Z

172.70.90.109: /* Explanation */

{{comic
| number = 2835
| date = September 29, 2023
| title = Factorial Numbers
| image = factorial_numbers_2x.png
| imagesize = 628x481px
| noexpand = true
| titletext = So what do we do when we get to base 10? Do we use A, B, C, etc? No: Numbers larger than about 3.6 million are simply illegal.
}}

==Explanation==
{{incomplete|Created by a VARIABLE-BASED BOT BEING ESCORTED OUT OF THE COMPUTER SCIENCE DEPARTMENT BY SECURITY - Please change this comment when editing this page. Do NOT delete this tag too soon.}}

This comic is about the {{w|factorial number system}}, which are based on {{w|factorial|factorials}}. No digit in a number will be larger than the position of that number (starting with 1, in the rightmost position, which can be 0 or 1 as base or {{w|radix}} 2) and the positional factor for any digit is the factorial of that same position, rather than the more traditional (constant) radix to the power of the position minus one (or to the power of the positional index, which starts at zero).

This 'works' because each additional digit is required when the prior digit is 'full'. The second digit is needed when the value goes beyond 0 or 1 units/ones (factorial 1, which is 1) and you start to need to know how many twos you might need. 0, 1 or 2 twos (factorial 2, or 2x1) can be invoked. This suffices up until the point where sixes (factorial 3, =3x2x1) are necessary, having exceeded the point at which 2 twos and 1 one are sufficient. Beyond 3 sixes, 2 twos and 1 one (which is 23), the fourth digit must represent the number (0 to 4) of twenty-fours (factorial 4, =4x3x2x21), etc.

The title-text 'addresses' the issue of which digits are used once any individual digit's radix goes beyond base-10 by... not allowing numbers to get so big that you'd try to use digits with a place-value greater than 9, which would limit any use to below factorial 10.

In the xkcd version of this number system, the rightmost digit has a value of 1!, the second one 2! and so on (that is, the i-th digit has a value i!). That can be compared with the usual decimal system where the i-th digit has value 10^(i-1) or the binary system where the i-th digit has value 2^(i-1).

The title text discusses a "problem" with this system, in that numbers above 3,628,800 (10!) have ambiguous notation, as it can be difficult to know whether the number in this system is (10)000000000, or (1)0000000000. Some use the letters A-Z to denote such larger numbers, e.g. A000000000. However, Cueball in this comic just announces that an number above 987654321 in this number system (or 3,628,799) is illegal.

==Transcript==
{{incomplete transcript|Do NOT delete this tag too soon.}}
:Variable-base Factoradic™ numbers

:{|
|Base 7||Base 6||Base 5||Base 4||Base 3||Base 2
|-
|3||5||3||0||1||1
|}

:Left side

:{| class="wikitable"
|Base 10||Factoradic
|-
|1||1
|-
|2||10
|-
|3||11
|-
|4||20
|-
|5||21
|-
|6||100
|-
|7||101
|-
|
|-
|21||311
|-
|22||320
|-
|23||321
|}

:Right side

:{| class="wikitable"
|Base 10||Factoradic
|-
|24||1,000
|-
|25||1,001
|-
|
|-
|5,038||654,320
|-
|5,039||654,321
|-
|5,040||1,000,000
|-
|
|-
|999,998||266,251,210
|-
|999,999||266,251,211
|-
|1,000,000||266,251,220
|-
|1,000,001||266,251,221
|}

:Cueball: Small numbers like seven or nineteen shouldn't use big numerals like "7" or "9".
:Cueball: I mean, "9" is the biggest numeral we have! It should be reserved for '''''big''''' numbers.
:Cueball: Small numbers should be written with small numerals like "1" or "2".
:Cueball: That's why my variable-base system uses...Hey! No, listen!

:Factorial numbers are the number system that sounds most like a prank by someone who's about to be escorted out of the math department by security.

{{comic discussion}}

[[Category:Comics featuring Cueball]]
[[Category:Characters with hats]]
[[Category:Math]]

2834: Book Podcasts

2023-09-28T17:03:07Z

172.70.90.109: /* Transcript */ is=>his (typo/thinko?)

{{comic
| number = 2834
| date = September 27, 2023
| title = Book Podcasts
| image = book_podcasts_2x.png
| imagesize = 262x394px
| noexpand = true
| titletext = I've been working my way through this 1950s podcast by someone named John Tolkien called 'Lord of the Rings'--it's a deep dive into this fictional world he created. Good stuff, really bingeable!
}}

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

[[Randall]] (represented as [[Cueball]]) discusses his love of {{w|podcast}}s, episodic audio files of a talk show. He uses them to pass the time when doing chores. At one point he imagines what it would be like if someone made a podcast narrating books, as an easy and convenient way to digest literature when reading the book yourself isn't an option. As spelled out in the caption, he quickly realizes he hasn't invented a new concept but simply described the existence of {{w|audiobook}}s. He also confesses this has happened more than once.

As shown in [[1367: Installing]] this is not the first time Randall has accidentally reinvented the proverbial wheel.

The title text is an inverse of the joke, with Randall seemingly having been listening to the ''{{w|Lord of the Rings}}'' audiobook without realizing that this "podcast" was actually originally a book written by {{w|J. R. R. Tolkien}}. This would {{w|The Lord of the Rings (1978 film)#Reception|likely irritate}} longtime fans of the book. In 1952, Tolkien's friend George Sayer [https://tolkiengateway.net/wiki/1952_tape_recording recorded Tolkien narrating excerpts from ''The Hobbit'' and ''The Lord of the Rings''], later distributed more widely in the 1970s on vinyl records, which this may also be an allusion to.

This comic is similar to [[2724: Washing Machine Settings]].

==Transcript==
:[Cueball, wearing headphones is looking down towards his phone which he is holding in his hand. From Cueball's head small circles go up to a large thought bubble above him.]
:Cueball: I need more podcasts to listen to while doing chores.
:Cueball: Hey, someone should do a podcast where they just read through a book! Each chapter could be an episode...

:[Caption below the comic:]
:Every now and then I reinvent audiobooks from first principles.

{{comic discussion}}

[[Category:Comics featuring Cueball]]
[[Category:Comics featuring real people]]
[[Category:LOTR]]

2823: Fossil

2023-09-15T11:47:58Z

172.70.90.109: /* Explanation */ explain location of glabella

{{comic
| number = 2823
| date = September 1, 2023
| title = Fossil
| image = fossil_2x.png
| imagesize = 428x246px
| noexpand = true
| titletext = The two best reasons to get into fossils are booping trilobites and getting to say the word "fossiliferous" a lot.
}}

==Explanation==
{{incomplete|Created by a BOOPED FOSSIL OF A BOT. Explanation of what booping an animal means is missing. Esepcially for non Americans. - Please change this comment when editing this page. Do NOT delete this tag too soon.}}

{{w|Trilobite}}s are an extinct group of species of marine animal, one of the earliest known groups of arthropods. The first appearance of trilobites in the fossil record is from about 521 million years ago and last from about 252 million years ago. They were very common and have easily fossilized exoskeleton, so their fossils can be found very often.

In the comic, [[Cueball]] is digging at a site with [[Megan]], [[Ponytail]], and [[White Hat]] visible in the background. He finds and digs up a trilobite fossil and proceeds to {{wiktionary|boop#Verb|boop}} it (possibly because he thinks it’s cute?). "Booping" is when someone lightly taps another person on the nose while saying "boop", typically to annoy or as a form of endearment. In panel 2, the fossil is shown with the trilobite head pointed away from Cueball. In panel 3 he boops the head section, likely aiming for where the nose would be, if one were to imagine a trilobite having a nose. The anatomical part of the trilobite being "booped" is refered to as the glabella by palaeontologists. The Glabella is located in the centre of the cephalon (head), where one would expect a nose to be located.

An off-screen character yells at him for doing this, probably because fossils are often fragile and excessive touching may cause it to break, or because doing so is not showing the due respect for a once-living being that is much older than Cueball, or because Cueball might contaminate the sample, or because overly strict rules are funny.

Fossiliferous (of a rock or stratum) means containing fossils or organic remains, and [[Randall]] implies that it is a fun word to say (it really is!).

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

:[Cueball is holding two halves of a rock in a paleontological site. Megan, Ponytail, and White Hat are working in the background.]
:Cueball: It's weird to pry open a rock and see an animal that no one has laid eyes on for 400 million years.

:[Zoom in on Cueball looking at the fossil he is holding.]

:[Cueball pokes the fossil.]
:Cueball: ''Boop!''
:Off-panel voice: Hey! Don't boop the trilobites!
{{comic discussion}}

[[Category:Comics featuring Cueball]]
[[Category:Comics featuring Megan]]
[[Category:Comics featuring Ponytail]]
[[Category:Comics featuring White Hat]]
[[Category:Animals]]