https://www.explainxkcd.com/wiki/api.php?action=feedcontributions&user=162.158.155.158&feedformat=atomexplain xkcd - User contributions [en]2020-01-22T13:20:15ZUser contributionsMediaWiki 1.30.0https://www.explainxkcd.com/wiki/index.php?title=Talk:2061:_Tectonics_Game&diff=164556Talk:2061: Tectonics Game2018-10-22T17:22:43Z<p>162.158.155.158: "Achievements" in last panel are not atolls but evolutionary stages of life</p>
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Are you sure the second row of achievements is about atolls? It looked more like evolution of life to me (single celled, multicellular, something, fish). -- [[Special:Contributions/162.158.62.33|162.158.62.33]] 11:35, 21 October 2018 (UTC)<br />
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'''Please never move discussions to other sections; the chronological order has to be respected.''' --[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 19:51, 20 October 2018 (UTC)<br />
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Wrote my first transcript. Hopefully it isn't terrible, haha. [[User:IYN|IYN]] ([[User talk:IYN|talk]]) 17:13, 19 October 2018 (UTC)<br />
:Not bad, but please do not remove the incomplete tag too soon. Even my smaller changes don't convince me right now that it's complete. --[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 17:34, 19 October 2018 (UTC)<br />
:There's no explanation ''OR'' transcript for the Title-text, yet. Sooo... <br />
:[[User:ProphetZarquon|ProphetZarquon]] ([[User talk:ProphetZarquon|talk]]) 18:41, 19 October 2018 (UTC)<br />
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I know very little about stars. Can anyone explain what the type in the title text is? [[Special:Contributions/162.158.63.70|162.158.63.70]] 18:23, 19 October 2018 (UTC)<br />
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The nice thing about this game is you could represent the Earth by a 1000-pixel wide map, and it would take over a decade before anyone could tell whether you'd actually implemented anything. -- [[User:Dtgriscom|Dtgriscom]] ([[User talk:Dtgriscom|talk]]) 20:53, 19 October 2018 (UTC)<br />
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In Panel 2, there is a box with the following information<br />
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<pre><br />
Single Multi<br />
LT 80 GT 440 T<br />
LM 15 GT 3 GT<br />
LA 2 MT 0 T<br />
LL 580 GT 0 T<br />
</pre><br />
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What does this mean? The measurements seem to be in gigatonnes, hence a measure of mass. CO2 releases are often measured in Gigatonnes. The geochemical carbon cycle is a significant long term negative feedback loop, so I guess these relate to CO2, but I can't guess the specifics. [[User:Zeimusu|Zeimusu]] ([[User talk:Zeimusu|talk]]) 15:00, 20 October 2018 (UTC)<br />
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:Just a guess, but I think it could be the amount of life, as a goal is to "keep your biosphere rich". Single and multi then mean single- and multicelled, and the terms on the left could be "Life-Terrestrial", "-Marine", "Aerial" and "Littoral" [[User:Emil|Emil]] ([[User talk:Emil|talk]]) 11:29, 21 October 2018 (UTC)<br />
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::And if you look at the [https://imgs.xkcd.com/comics/tectonics_game_2x.png high-DPI image] you can see that the second row of achievements in the last panel, underneath the stages of mountain, is not "{{diff|164457|achievements in the formation of an atoll}}" but evolutionary stages of life: (1) non-cellular (or cellular but prokaryotic?), (2) cellular with a nucleus (eukaryotic), (3) multicellular, and (4) what looks like a side-view of a mammalian eye. [[Special:Contributions/162.158.155.158|162.158.155.158]] 17:22, 22 October 2018 (UTC)<br />
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'''An Actual Game'''<br />
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Here is a section for people who are looking into actually developing a game. (With time warp obviously.)<br />
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Seriously though, this could actually be a fun (and educational) simulator, similar to KSP. --[[Special:Contributions/172.69.142.10|172.69.142.10]] 02:31, 20 October 2018 (UTC)<br />
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My wife is trying to physically restrain me from immediately starting to write this game...int main ( int arggggg...ow...get off [[User:SteveBaker|SteveBaker]] ([[User talk:SteveBaker|talk]]) 16:52, 19 October 2018 (UTC)<br />
:If the comment section of this comic is anything to go by, you could sell it for a buck a pop and get...I dunno...$12 at least? [[User:GreatWyrmGold|GreatWyrmGold]] ([[User talk:GreatWyrmGold|talk]]) 19:01, 19 October 2018 (UTC)<br />
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Who wants to help me make this? [[User:Blacksilver|Blacksilver]] ([[User talk:Blacksilver|talk]]) 17:24, 19 October 2018 (UTC)<br />
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With a sufficiently large time warp, this actually sounds like it would be pretty fun. [[User:Ahiijny|Ahiijny]] ([[User talk:Ahiijny|talk]]) 18:20, 19 October 2018 (UTC)<br />
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Hey, guys reading your comments I can see several people, including myself, might be interested in making a game like this. Perhaps we should coordinate efforts to make one? [[Special:Contributions/162.158.246.100|162.158.246.100]] 23:15, 19 October 2018 (UTC)<br />
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I came here specifically to see if this game existed and I'm irritated it doesn't yet. People with better coding and geological skills than me, you have an interested party. {{unsigned ip|108.162.221.83}}<br />
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I'm fully on board. If and when this thing hypothetically gets popular, I'll be like, "Hey, I was there!" [[Special:Contributions/172.68.46.5|172.68.46.5]] 04:12, 20 October 2018 (UTC)<br />
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I have a feeling that making this game would be an awful like No Man's Sky, all the physics would be extremely difficult to manage and take years to iron out fully. [[Special:Contributions/162.158.246.88|162.158.246.88]] 15:03, 20 October 2018 (UTC)<br />
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I would love to help. I'm thinking something like https://en.wikipedia.org/wiki/Reus_(video_game). But just with planetary modification abilities. {{unsigned ip|108.162.237.58}}<br />
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If anyone's interested I made a discord server where we can talk about making this: https://discord.gg/4MGZT7n [[User:MutedAjar|MutedAjar]] ([[User talk:MutedAjar|talk]]) 05:18, 21 October 2018 (UTC)<br />
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'''Other Real Time Games'''<br />
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This is for discussion of other real time games. (I.E. Desert Bus) --[[Special:Contributions/172.69.142.10|172.69.142.10]] 02:34, 20 October 2018 (UTC)<br />
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I have this horrible urge to find the Desert Bus source code and mod it to make "Desert Bus 2: Walt Disney Land to Walt Disney World" [[Special:Contributions/172.68.90.88|172.68.90.88]] 21:53, 19 October 2018 (UTC)SiliconWolf<br />
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It's like playing Desert Bus for the rest of your life... :) [[Special:Contributions/162.158.63.154|162.158.63.154]] 18:23, 19 October 2018 (UTC) Scott<br />
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:I thought it appropriate to add Desert Bus to the main description as a real world example of a tedious real-time game that goes to a ridiculous extreme... though much less extreme and ridiculous than the one in the comic. [[User:N0lqu|-boB]] ([[User talk:N0lqu|talk]]) 21:17, 19 October 2018 (UTC)<br />
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Does anyone else remember the old DOS game: 688 Attack Sub? Where it felt like you were waiting forever for your torpedo to hit? I liked that they told you that, in the real world, it's much slower than it is in the game.[[Special:Contributions/172.68.65.6|172.68.65.6]] 18:46, 19 October 2018 (UTC)<br />
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Not really sure where to put this, so posting it here: Too bad the comic wasn't a bit longer. Could have had Ponytail respond to "It's real time" with "Of course not. It's a million times faster." "Whew." "Yeah, just 400 more years until your first mountain achievement."<br />
: Actually, at 1 million times faster, it would only take 0.4 years, or about 5 months.<br />
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I was immediately reminded of Wobbler's (or Pratchett's, depending on which side of the 4th wall you look from) "Journey to Alpha Centauri" - and it turns out it was actually made into a "real" game too. [[Special:Contributions/162.158.210.22|162.158.210.22]] 09:03, 22 October 2018 (UTC)<br />
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Didn't / doesn't have the MS Flight Simulator a real time mode? I think I somewhere read something about that some time ago. Dunno if true, wikipedia doesn't say anything about that. [[User:Elektrizikekswerk|Elektrizikekswerk]] ([[User talk:Elektrizikekswerk|talk]]) 10:23, 22 October 2018 (UTC)<br />
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@Elektrizikekswerk: yes, it did. I recall one of the challenges on Message Boards at the time was to complete Sydney-LAX in real time (~12 hours continuous flying) in poor weather. I'm searching for evidence of this and will update once I can link it together. [[Special:Contributions/162.158.63.88|162.158.63.88]] 14:03, 22 October 2018 (UTC)</div>162.158.155.158https://www.explainxkcd.com/wiki/index.php?title=2052:_Stanislav_Petrov_Day&diff=1633922052: Stanislav Petrov Day2018-09-28T14:30:31Z<p>162.158.155.158: /* Explanation */</p>
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<div>{{comic<br />
| number = 2052<br />
| date = September 28, 2018<br />
| title = Stanislav Petrov Day<br />
| image = stanislav_petrov_day.png<br />
| titletext = I was going to get you an alarm clock that occasionally goes off randomly in the middle of the night, but you can ignore it and go back to sleep and it's fine.<br />
}}<br />
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==Explanation==<br />
{{incomplete|Please edit the explanation below and only mention here why it isn't complete. Do NOT delete this tag too soon.}}<br />
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Stanislav Yevgrafovich Petrov (Russian: Станисла́в Евгра́фович Петро́в; 7 September 1939 – 19 May 2017) was a lieutenant colonel of the Soviet Air Defence Forces who became known as "the man who single-handedly saved the world from nuclear war" for his role in the 1983 Soviet nuclear false alarm incident.<br />
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==Transcript==<br />
{{incomplete transcript|Do NOT delete this tag too soon.}}<br />
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{{comic discussion}}</div>162.158.155.158https://www.explainxkcd.com/wiki/index.php?title=Talk:2049:_Unfulfilling_Toys&diff=163053Talk:2049: Unfulfilling Toys2018-09-21T16:55:39Z<p>162.158.155.158: Unattached</p>
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The no string attached yo-yo exists and works rather well for those who know how to yo-yo<br />
: Blinking heck, my Lord. I thought you meant one of those yo-yos with a loop at the end, but I've now seen people yo-ing into the air with detached strings and catching them again by whipping the spinning beast. [[Special:Contributions/162.158.155.158|162.158.155.158]] 16:55, 21 September 2018 (UTC)<br />
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Pondy contributed a video for: "This also exists, is rather functional, and is the only way to make fun Rubik's cube shapes such as 1x5x5. See [https://www.youtube.com/watch?v=_x6leUqKbqE this video] for a good example of this."<br />
:But this doesn't appear to be a good example at all. Those cubes are most definitely attached and you can see the presenter has to use quite a bit of force at some points to rotate. Can someone find a better example if it exists? [[User:N0lqu|-boB]] ([[User talk:N0lqu|talk]]) 16:51, 21 September 2018 (UTC)</div>162.158.155.158https://www.explainxkcd.com/wiki/index.php?title=Talk:2046:_Trum-&diff=162720Talk:2046: Trum-2018-09-14T17:06:17Z<p>162.158.155.158: </p>
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This is not that weird. If names were random then it would be a 1 in 26^4 = 456976 chance of a particular president matching another for the first 4, but this is a "Birthday Problem" with 44 presidents, so the probability of any two presidents sharing the first 4 characters is 1-(456976!/(456976^44 (456976 - 44)!)), which wolfram alpha is giving as 0.206%<br />
:Yes, but we already "fulfilled our obligation" after the sixth president :) [[User:Zachweix|Zachweix]] ([[User talk:Zachweix|talk]]) 15:59, 14 September 2018 (UTC)<br />
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An approximation to the correct probability would be to do 44^2/(2 x 26^4) which would give about 0.2% chance of this happening. So fairly weird, but as the comic suggests, many things about this presidency are weirder than 0.2%.<br />
:I love that we are now having a mathematical discussion about how weird things are in the presidency. [[User:Zachweix|Zachweix]] ([[User talk:Zachweix|talk]]) 15:58, 14 September 2018 (UTC)<br />
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Should we mention Andrew Johnson and LBJ, perhaps in a "Trivia" section? Obviously Johnson is a very common surname, but they're still unrelated presidents that share the first (and only) 7 characters of their last name. (Are there other pairs of presidents that share at least the 3 first letters of their surnames besides AJ/LBJ and HST/DJT?)<br />
[[Special:Contributions/172.69.62.160|172.69.62.160]] 16:25, 14 September 2018 (UTC)<br />
...And, upon reflection, I just realized Harding shares the first 3 letters with the Presidents Harrison, so that's one(?) more example.<br />
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So we discount Presidents Adams, Bush, Cleveland, Harrison and Rosevelt as being related, or being the same person. <br />
We have the following common starts: Bu (3 names), Cl, Ha (3 names), Ta, Har, Trum and Johnson. Also A, B, C, F, G, H, J, M, P, R, T and W. [[Special:Contributions/162.158.154.241|162.158.154.241]] 16:49, 14 September 2018 (UTC)<br />
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If you count Buren as opposed to Van Buren then you have 4 starting Bu and 2 starting Bur [[Special:Contributions/162.158.155.146|162.158.155.146]] 16:52, 14 September 2018 (UTC)<br />
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Tyler and Taylor is weirdly close, in a "look elsewhere effect" kind of way. Although the fact that you elected a president whose name means "fart" in British English has got to be weirder.</div>162.158.155.158https://www.explainxkcd.com/wiki/index.php?title=Talk:2046:_Trum-&diff=162704Talk:2046: Trum-2018-09-14T15:56:52Z<p>162.158.155.158: Fixed math</p>
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This is not that weird. If names were random then it would be a 1 in 26^4 = 456976 chance of a particular president matching another for the first 4, but this is a "Birthday Problem" with 44 presidents, so the probability of any two presidents sharing the first 4 characters is 1-(456976!/(456976^44 (456976 - 44)!)), which wolfram alpha is giving as 0.206%<br />
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An approximation to the correct probability would be to do 44^2/(2 x 26^4) which would give about 0.2% chance of this happening. So fairly weird, but as the comic suggests, many things about this presidency are weirder than 0.2%.</div>162.158.155.158https://www.explainxkcd.com/wiki/index.php?title=Talk:2042:_Rolle%27s_Theorem&diff=162391Talk:2042: Rolle's Theorem2018-09-06T11:08:24Z<p>162.158.155.158: </p>
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Now we wait for https://en.wikipedia.org/wiki/Munroes_theorem. [[Special:Contributions/172.69.54.165|172.69.54.165]] 15:51, 5 September 2018 (UTC)<br />
:Can't wait to see how long it takes to remove the article. [[User:Linker|Linker]] ([[User talk:Linker|talk]]) 17:05, 5 September 2018 (UTC)<br />
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:Proposed ideas for Munroe's Law:<br />
::- Any seemingly simple idea will be difficult to prove; the simpler it seems, the harder the proof.<br />
::- Any proof which is discovered by a layperson will have been previously discovered by an expert (or an "expert") in the field.<br />
:[[User:Rajakiit|Raj-a-Kiit]] ([[User talk:Rajakiit|talk]]) 17:57, 5 September 2018 (UTC)<br />
:I do not have the time to do it good, so here a suggestion: Would someone go to the wikipedia page of Rolle's theorem and add a "in popular culture" section? may be a first? Not even "Nash equilibrum" has that :-) [[Special:Contributions/162.158.234.16|162.158.234.16]] 08:13, 6 September 2018 (UTC)<br />
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I feel like Euclid beat Randall to the punch here, a couple millennia. [[Special:Contributions/162.158.155.146|162.158.155.146]] 16:54, 5 September 2018 (UTC)<br />
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I don't see that Thales has proven Randall's theorem. Do not to be confused with {{w|Thales's theorem}}, that's about right angles. Maybe I'm blind or just dumb, but if so it has to be explained with more traceable background. I just believe that this diagonal is so trivial that even the ancient Greeks weren't engaged on a proof. --[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 21:38, 5 September 2018 (UTC)<br />
* From {{w|Thales|Wikipedia}}: Other quotes from Proclus list more of Thales' mathematical achievements: "They say that Thales was the first to demonstrate that the circle is bisected by the diameter, the cause of the bisection being the unimpeded passage of the straight line through the centre." [[User:Alexei Kopylov|Alexei Kopylov]] ([[User talk:Alexei Kopylov|talk]]) 05:39, 6 September 2018 (UTC)<br />
* On the other hand not all historian believe Proclus. But van der Waerden does: [https://books.google.com/books?id=HK3vCAAAQBAJ&pg=PA88#v=onepage&q&f=false]. [[User:Alexei Kopylov|Alexei Kopylov]] ([[User talk:Alexei Kopylov|talk]]) 05:49, 6 September 2018 (UTC)<br />
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:''Rolle's Theorem counterexample?''<br />
Isn't the TAN(x) function a counterexample to this? Starting at a given point, it rises to infinity, then returns from negative infinity to the same point without ever having a slope of zero. [[Special:Contributions/172.68.58.89|172.68.58.89]] 06:58, 6 September 2018 (UTC)<br />
:TAN(x) isn't differentiable at pi/2, hence the theorem doesn't apply--[[Special:Contributions/162.158.92.40|162.158.92.40]] 07:48, 6 September 2018 (UTC)<br />
::And tan(x) has a slope of 0 at pi, so even if it applied, it wouldn't prove it wrong. A better example would be 1/x, but still invalid. [[User:Fabian42|Fabian42]] ([[User talk:Fabian42|talk]]) 08:01, 6 September 2018 (UTC)<br />
:::Nope: tan(x) has a slope of 1 at pi, and its slope is never less than 1. Of course, that doesn't make it a counterexample. Zetfr 09:17, 6 September 2018 (UTC)<br />
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The math in the comic is well explained, but shouldn't there be something about the "math equivalent of the clueless art museum visitor..." part? Zetfr 09:17, 6 September 2018 (UTC)<br />
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Just so we're on the same page, while the proof of Rolle's theorem is not completely trivial, neither is it difficult by any means. Proving it seems to be a pretty common homework assignment in undergrad math classes, for example, so one might legitimately ask why it deserved to be named. Perhaps it's simply that it's old enough that the methods at the time were crappy, and so modern proofs are much easier. [[Special:Contributions/172.69.22.140|172.69.22.140]]<br />
: It is named because it's a very important theorem in calculus, used to prove many other theorems or results. So when you need to prove something using this property, instead of re-demonstrating it or merely saying "it is well known that..." (which often raises alarm bells in the mind of the reader/corrector), all you have to do is reference Rolle's theorem.[[Special:Contributions/162.158.155.158|162.158.155.158]] 11:08, 6 September 2018 (UTC)</div>162.158.155.158