explain xkcd - User contributions [en]

2501: Average Familiarity

2021-08-14T08:05:45Z

172.69.68.184: /* Explanation */ ?

{{comic
| number = 2501
| date = August 11, 2021
| title = Average Familiarity
| image = average familiarity.png
| titletext = "How could anyone consider themselves a well-rounded adult without a basic understanding of silicate geochemistry? Silicates are everywhere! It's hard to throw a rock without throwing one!"
| imagesize =
}}

==Explanation==
{{incomplete|Created by A SILICATE (DON'T WE ALL KNOW THE FORMULA?). do NOT delete this tag too soon.}}

This comic claims that experts vastly overestimate how familiar other people are with their own field of study. As an example, [[Randall]] shows a conversation between [[Ponytail]] and [[Cueball]] as two {{w|geochemistry|geochemists}} specializing in {{w|silicate}} chemistry. Although the two scientists understand that the layman does not know all that they know about silicates, they are still under the impression that other people at least know the chemical makeup of {{w|olivine}} and some {{w|feldspar}}s. Cueball also mentions {{w|quartz}}, an even simpler mineral taken for granted by Ponytail.

In truth, the average person can't be expected to know the chemical makeup of ''any'' arbitrarily-chosen substance reliably (or any material at all, if that average person's job and hobby do not involve chemistry — aside from the few that made their way into {{w|common knowledge}}, like NaCl for salt<ref>"Formulae of Common Minerals" Tulane University. Fall 2013. Accessed August 12th, 2021. https://www.tulane.edu/~sanelson/eens211/mineralform.htm</ref> ({{w|Halite}}), H2O for water/ice, or CO2 for carbon dioxide), and may not even know the definition of "feldspar" beyond "a mineral", if at all.

It even goes so far as to initially gloss over the 'everyday' knowledge of quartz... until prompted by the slightly-less-overestimating partner in the conversation. Perhaps like a gardener forgetting to mention the lawn he maintains (along with the 'actual' plants in the borders or vegetable patches), there seemed no need to include such a common mineral as a subject of silicate chemistry. Quartz is a basic silicon oxide (SiO2) that many non-chemists ''have'' heard of because it is common and has a variety of uses, though they would not know its chemical structure. Quartz ''can'' be found as distinct large-scale crystals (probably obvious to the layman, as an ice-cube is in a drink) but also features as a hard-wearing micro-constituent of many rocks. Quartz is a major component of most sand (except for coral sands, which are calcium carbonates). Quartz crystals are sometimes made into jewelry and other decorative objects. Most modern clocks use {{w|Crystal oscillator|the resonance frequency of quartz}} to keep time.

In the title text the two geologists express belief that the average person ''should'' be more familiar with silicates because of how ubiquitous they are. Their somewhat-exasperated statement plays on the phrase "you can't throw a rock without hitting one," a standard hyperbole about how common something is. Indeed, {{w|Silicate mineral|silicate}} rocks are extremely common on Earth — not only would a rock thrown in a random direction stand a decent chance of striking a silicate mineral rock but the randomly-selected rock being ''thrown'' also has a very high chance of being a silicate mineral rock. With the exception of a few carbonate deposits, rocks found in large deposits on Earth's surface nearly all have silica in them, even extraterrestrial rocks. The Earth's crust is about 60% silica by weight.<ref>"Constraining crustal silica on ancient Earth" C. Brenhin Keller, T. Mark Harrison. ''Proceedings of the National Academy of Sciences'' Sep 2020, 117 (35) 21101-21107; DOI: 10.1073/pnas.2009431117</ref>

==Transcript==
:[Ponytail and Cueball are talking. Ponytail has her hand raised, palm up, towards Cueball.]
:Ponytail: Silicate chemistry is second nature to us geochemists, so its easy to forget that the average person probably only knows the formulas for olivine and one or two feldspars.
:Cueball: And quartz, of course.
:Ponytail: Of course.

:[Caption below the panel]
:Even when they're trying to compensate for it, experts in anything wildly overestimate the average person's familiarity with their field.

== References ==
<references />

{{comic discussion}}

[[Category:Comics featuring Ponytail]]
[[Category:Comics featuring Cueball]]
[[Category:Geology]]
[[Category:Science]]

Talk:2498: Forest Walk

2021-08-09T19:30:59Z

172.69.68.184: Asking the tough questions

Have just added a transcript. Hope I did good! :) -Lance ([[Special:Contributions/172.70.126.211|172.70.126.211]] 02:40, 5 August 2021 (UTC))
:You did good, Lance. *pats head* [[Special:Contributions/162.158.74.197|162.158.74.197]] 18:06, 5 August 2021 (UTC)

Wonder what Beret Guy would do if Cooper said, "I don't have it any more," since some of the money was discovered, badly deteriorated and partially buried, along the banks of the Columbia River back in 1980, as verified by serial numbers on the found currency. Given the absence of any other evidence, it was assumed that the hijacker had gotten separated from the money either during or right after the jump, the found currency had been deposited as flotsam at its discovery point through the actions of the river itself, and the rest of the money was still somewhere in the Pacific Northwest awaiting similar discovery, [[User:RAGBRAIvet|RAGBRAIvet]] ([[User talk:RAGBRAIvet|talk]]) 04:23, 5 August 2021 (UTC)

If it can be considered that the comic is a reference to random walk (in a forest), can it also be considered a reference to [https://en.wikipedia.org/wiki/Random_forest random forests] ? [[Special:Contributions/141.101.68.73|141.101.68.73]] 07:14, 5 August 2021 (UTC)
:I don't get why the comic is supposed to be a reference to random walks or to random forests. Nothing points to that. Real forests exists, and people walk in them. The only peculiarity of this particular forest is that D.B. Cooper hangs in one of its trees. --[[Special:Contributions/188.114.103.244|188.114.103.244]] 08:20, 5 August 2021 (UTC)

I feel like there should be a D.B. Cooper category at this point. --[[Special:Contributions/141.101.104.52|141.101.104.52]] 07:51, 5 August 2021 (UTC)

Hey there, I think the alt text is also a reference to https://xkcd.com/2390/ ? Kind regards :) [[Special:Contributions/162.158.89.61|162.158.89.61]] 08:13, 5 August 2021 (UTC)

Typo: "he might have simply inherited it form his mom". --[[Special:Contributions/162.158.255.39|162.158.255.39]] 12:40, 5 August 2021 (UTC)
: Done, now. I'd seen it, but apparently missed it, in preparing for my first big corrective edit of the day (little tyops, a lot less awful than ones ''I'' have previously left for others to correct). Or maybe I thought I should leave it suspended from the tree until some other issue had been resolved. :P [[Special:Contributions/162.158.158.105|162.158.158.105]] 12:53, 5 August 2021 (UTC)

Not to question the artistic representation, but rather than Forest (tree canopy and dense undergrowth), I'd say that was more Woodland Savanna (individual tree growth smattered around grass/shrubland at most). Or maybe we just can't properly see the woods for the trees... (Or the action is set at the edge of a clearing, of course!) [[Special:Contributions/141.101.98.184|141.101.98.184]] 13:32, 5 August 2021 (UTC)
:It's Southwest Washington, where Pyroculture practiced over centuries changed the nature of the forests. Your average forest, until recently when fire suppression came in, had very little undergrowth, and sometimes whole fields of Camas Lilly or Tarweed or other food plants valued by the Yakima.[[User:Seebert|Seebert]] ([[User talk:Seebert|talk]]) 19:43, 5 August 2021 (UTC)

Doesn't it seem likely, that Beret Guy's trees have soup outlets on them? Like his Business does? (Or, maybe Ghosts (like the business))

'You help me down this instant!' is not an "unlikely combination of words" or an unusual phrase. I'm not sure if it is regional, but as a native US English speaker, this is a completely normal wording to use if you are frustrated and insisting that someone do something, especially someone much younger, so perhaps it is meant to further indicate the man's age. As an example, a parent might say to their unruly child who is refusing to do their chores, "young man, you clean your room this instant!" (or "right this instant") It can also be used playfully: you are taking a walk along a river with some friends, when one of them suddenly playfully splashes water on you and takes off running (to avoid retaliation) and you run after them shouting "I'm going to get you for that! You get back here right this instant!" [[Special:Contributions/172.70.131.28|172.70.131.28]] 15:36, 5 August 2021 (UTC)
:I had the same reaction to both the title text and the explanation (although I believe it refers to the "help me down" part and not the "this instant" part). Either way, neither part of the phrase nor the entire phrase seems unlikely or unusual. I actually first came to this page to see if I was missing a reference in the title text, but it appears Randall just finds our dialectic somewhat strange. [[Special:Contributions/172.70.114.73|172.70.114.73]] 16:28, 5 August 2021 (UTC)
::IANALinguist, but I took it that "Help me down" is a (potentially, enough to be linguistically nerdsniped upon) ambiguous. 'Down' as a verb is strange, maybe ("to down, I wish you to help me") which might even be more feather-based in regards to the action conveyed. Or "lower the amount of help you shall grant me". Or even "(I) require assistance (for) I (am) feeling a certain amount of ennui". And "I wish to fall" is obviously not meant... Or is it? Some people would wish to consider this... [[Special:Contributions/162.158.158.211|162.158.158.211]] 19:06, 5 August 2021 (UTC)
:::It was I who added that part about the "unlikely combination of words". Today I have checked it on https://www.english-corpora.org/coca/ (where you have to annoyingly register with your real email address as throwaway mails are effectively blocked). Expression 'right know' has 151 795 results. 'this instant' has only 558 including phrases such as:
:::"Get the fuck out of my office this instant." from Silicon Valley (2017 TV Series, episode The Keenan Vortex);
:::"Shh. Stop that this instant! 'Stop that this instant.' You sound like my teacher." Justice League Action (2016, Galaxy Jest);
:::"Put those drapes down this instant. ... I will grab a spatula and put you Over my knee this instant! - You sound like mommy." The Haunted Hathaways (2014, Haunted Viking);
:::"Applebloom! You come back here right this instant! (blustering)" My Little Pony: Friendship Is Magic (2010, Bridle Gossip).
:::There were also some result from spoken word, newspapers and blogs but they were not relevant. In conclusion, 'this instant' is much less frequent than more common 'right know', however, it is used. On the other hand, it is infrequent enough that characters in TV series comment on how out of place that phrase sounds. I have deleted my explanation, feel free to undo the deletion, rewrite the explanation or leave it as it is now.
::: To clarify, I have deleted this part of explanation: As mentioned in [[1400: D.B. Cooper]], Cooper was also known for ambiguous, possibly affected speaking style and use of unusual phrases such as 'negotiable American currency', he seems to hold to this habit and instead of much more common 'Help me right now!' or 'Put me down immediately!' he used rather unlikely combination of words 'You help me down this instant!'. [[User:CryptoNut1269|CryptoNut1269]] ([[User talk:CryptoNut1269|talk]]) 11:06, 6 August 2021 (UTC)
::::I assume you mean "right now" not "right know". [[Special:Contributions/172.70.126.165|172.70.126.165]] 01:05, 7 August 2021 (UTC)Pat
::: My input: the "this instant" bit is not even mentioned as the focus of the linguist's attention, so I'd not consider that important. D.B. may also have only started to say that ''since'' the prior visitor, or only when directly addressing BG (with the long history of ignoring/refusing him). "Help me down" is an interesting construct in and of itself, as mentioned. But I could not tell you in what ways. [[Special:Contributions/162.158.158.106|162.158.158.106]] 14:39, 6 August 2021 (UTC)

Anyone else think that D.B. Cooper in this comic looks a bit like Don Quixote from alternate energy revolution? --[[User:4D4850|4D4850]] ([[User talk:4D4850|talk]]) 02:13, 6 August 2021 (UTC)
: Kind of, but when you looked closer at [[556: Alternative Energy Revolution]] Don Quixote's beard is definitely better groomed and his hair is trimmed. I would rather compare this Cooper with the guy form [[725: Literally]]. [[User:CryptoNut1269|CryptoNut1269]] ([[User talk:CryptoNut1269|talk]]) 11:06, 6 August 2021 (UTC)
:: <humor> What if literally guy is alternate universe D.B. Cooper? </humor> Seriously speaking though, it seems the similarity is just because there aren't many different ways to draw stick figures. --[[User:4D4850|4D4850]] ([[User talk:4D4850|talk]]) 19:41, 6 August 2021 (UTC)

Where's the page for yesterday's 2499:Abandonment Function? I know it was published late (after midnight last night), but is that a reason not to explain it? [[User:Barmar|Barmar]] ([[User talk:Barmar|talk]]) 12:54, 7 August 2021 (UTC)
:Sometimes DGBRTBot (however it's capitalised, etc, I forget) needs a nudge. It's a long long time since I last saw that need so seriously doing, so can't remember how difficult it was when everyone was last complaining about it... I'm sure others are checking that, but I'll poke around to see if it's possible to poke as an AnonIP too... [[Special:Contributions/141.101.99.12|141.101.99.12]] 17:55, 7 August 2021 (UTC)
:: I think my desire to archive the comic along with everything else in case the universe ends is simplifying down to just pasting a link in here: https://xkcd.com/2499/ . Presently accessible for me on xkcd.com . Has a single panel showing a drone asking to be charged by an owner it gifts itself to. Somewhat triggering around human slavery. Caption describes an abandonment function that provides for unwanted drones to find new owners. Reminds of discarded autonomous robots. archive.org will be crawling it soon, hopefully before the universe ends, but I wrote a small summary here. [[Special:Contributions/172.70.114.87|172.70.114.87]] 20:04, 7 August 2021 (UTC)
:: commentary: this probably actually works to give drones away, comparable to leaving furniture by the side of the street. [[Special:Contributions/108.162.219.11|108.162.219.11]] 20:06, 7 August 2021 (UTC)
::: The way to get rid of things by the side of the street is not to have a "free to a good home" sign, but to make it actually tempting to just take it. Many a broken fridge has been given a price-tag and "see owner" label and ended up (even less responsibly) taken away by someone who thinks that even if that price is a steal, they'll happily do their own stealing. (Anyway, the article now exists, after a fashion.) [[Special:Contributions/141.101.98.157|141.101.98.157]] 23:07, 7 August 2021 (UTC)

If D. B. Cooper is hanging from his parachute from a tree branch, why are the parachute lines slack? [[Special:Contributions/172.69.68.184|172.69.68.184]] 19:30, 9 August 2021 (UTC)

2499: Abandonment Function

2021-08-08T01:04:39Z

172.69.68.184: Added transcript.

{{comic
| number = 2499
| date = August 6, 2021
| title = Abandonment Function
| image = abandonment function.png
| titletext = Remember to only adopt domesticated drones that specifically request it. It's illegal to collect wild ones under the Migratory Drone Treaty Act.
| imagesize =
}}

==Explanation==
{{incomplete|Created by a HUMAN BEING because the bot seems to have been left abandoned. Do NOT delete this tag too soon.}}

{{W|abandoned_pets|Pet abandonment}} is a situation of concern among biological pets, and is part of the reason there are animal rescue organisations providing for adoption in most regions. Since drones are automated, they can be programmed to have an automatic abandonment function.

With the drone responsible for finding its own new owner, one can imagine it becoming more and more fervent as its charge runs down, to prevent the accumulation of derelict drones in the streets.

Triggering abandonment based on extended close proximity to the device's own controller could produce issues such as accidental activition, or malicious activation by a party who could send the proximity signal from a great distance, possibly to many drones at once, via {{W|software defined radio}}.

==Transcript==
:[Multi-Rotor drone is flying though the air. Movement lines behind drone indicate a shaky flight path.]
:Drone: Hi, I'm yours now! Please charge me!
:Drone: Hi, I'm yours now! Please charge me!

:[Caption below the frame:]
:Tech Tip: If you ever get tired of a toy drone, tie the controller to it and set it outside. Its abandonment function will activate and it will find a new home.

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