Talk:3251: Time Machine Conversation

Explain xkcd: It's 'cause you're dumb.
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Spoilers for boats. 64.201.132.210 21:25, 27 May 2026 (UTC)

The barman says "Sorry, we don't serve time-travellers". A time-traveller walks into a bar. 81.179.199.253 21:31, 27 May 2026 (UTC)

Before explanation/transcript --OceanLord (talk) 21:38, 27 May 2026 (UTC)

Cool I’ve never been early enough to see an explanation-less comic also help me I’ve never commented before did I mess it up :( 73.148.10.13 (talk) 21:47, 27 May 2026 (please sign your comments with ~~~~)

You messed up slightly -- you forgot to sign your comment with 4 tildes. Barmar (talk) 21:48, 27 May 2026 (UTC)
Like this tilde tilde tilde tilde 82.13.184.33 (talk) 09:02, 28 May 2026 (please sign your comments with ~~~~)
(That's not necessarily helping...)
If you can't find it on your keyboard (or it's awkward... I have to tap a bit of my on-screen keyboard twice to get to the 'secondary set of other characters' layout that features it), you can copy-and-paste it from somewhere else (hmmm... It is usually is mentioned in a comment at the top of a recent Talk page -- edit: and it still is... sorry, went looking for when it vanished, but it never had ...must have been sticky scrolling that stopped me panning up enough to see it... Anyway, it's the "Please sign your posts with" thing at the top of the page. You can copy-paste the four tildes from there, if anyone ever finds it easiest to do that for any reason).
Or, click on the penultimate button in the button-bar immediately above this (as I write) editing window. Has a scrawly 'signature'-like image in it (like the Bold button has a bold B, italics has an italic I, etc) and it will give you "<hyphen><hyphen><tilde><tilde><tilde><tilde>" wherever your cursor is in this textbox (assuming you don't have a custom signature, as a registered user, the effective text of that may appear instead). The hyphens/etc are't strictly important, though a newline starting with two hyphens used to be a standard "this line is the start of a signature" marker in more civilised days. But I'll leave them in here, so you can see how they precede the (more vital, for conversation readability) who-I-am and when-I-posted information that the four-tildes generates for me. --82.132.238.245 12:23, 28 May 2026 (UTC)
It was necessarily not helping ;o) 82.13.184.33 13:07, 28 May 2026 (UTC)

https://en.wikipedia.org/wiki/Polynesian_navigation Sebastian --88.217.185.170 21:50, 27 May 2026 (UTC)

i think it should be "this page was created in the past" not "this page was created in the future". im changing that (its more like present here cause its 22:15, 27 May 2026 (UTC))

Aren't they all created in the past by the time we read it? Barmar (talk) 22:22, 27 May 2026 (UTC)
It could have been created in the future and then sent back in time. 82.13.184.33 15:07, 28 May 2026 (UTC)

"'North Star'? I guess I'm not familiar with that. What's a 'north'? ... Primary direction, you say? So it's the direction the sun appears every morning?" 2604:2D80:AB87:B700:5456:ED28:D284:B682 23:08, 27 May 2026 (UTC)

They would have been quite familiar with the fact that the Little Bear remained in the same direction all night every night. Though, to avoid confusing them, remember that during the Iron Age, the polar point in the sky would have been closer to Kochab (Beta Ursae Minoris) rather than Polaris (Alpha Ursae Minoris) RegularSizedGuy (talk) 03:43, 28 May 2026 (UTC)
Welll... The Little Bear spun every night, around the (at any given time in history) polar point. Any small amount of interest in the patterns and (if patient, noticable) motion of the stars in a suitably clear night sky would reveal the roughly marked (or rather more unmarked, for those more antipodean) hub of the 'spinning firmament' to which everything (except birds, clouds, 'hairy stars', shooting stars, 'wanderers' and of course Sol and Luna... but pretty much everything else!) seems to be stuck to.
The path of the Sun and the Moon around (or at least close to!) the ecliptic is more important for its seasonal variation. Where the Sun is rising/setting (depending upon your interpretation, either of these could be your prime focus), ever-cycling across the year, is more a time clue (for a given location) than an accurate direction (and possibly latitude) clue when trying to derive your culture's core elements of navigation.
Which is not to say that Sun-chasing (or waiting to see where it popped up, then going that way) might not be part of your over-the-horizon navigation planning, but you had to be wise to the fact that sometimes that would lead you more towards one or othe tropic line than it might do the equator (if you're between the tropics - or varying degrees closer to eventually spiralling in towards the equator if you're currently beyond either tropic).
The presence/absence of some asterisms (either seeing if they appear over the horizon or knowing whether or not they should be in the current night sky at all) might usefully substitute for, or enhance, the concept of the annually changing solar-sunset/-sunrise position, with enough aquired (experienced/learnt) knowledge of these cycles, and clearly it (and posssibly other paleolithic lifehacks) worked well enough for enough proto-polynesian families to make enough successful journeys across enough of the Pacific to have settled so many places so far apart, and likely was also useful for far less expansive trade-routes in other parts of the world where sailing (or walking) in roughlybtue right direction was good enough most of the time, so long as you weren't unlucky and/or perhaps knew how to recognise and avoid particularly troublesome coastlines/etc.
But each culture's travellers probably made use of whatever they had at hand, whether it was lodestones or oases or just following the tracks/milemarkers laid between neighbouring settlements by those already established there. 82.132.238.245 12:23, 28 May 2026 (UTC)

People had been tracking the sun for thousands of years - building megaliths and celebrating solstices, I am sure they had concepts of direction. Lodestones are noted in Greek writing and may have been known earlier. Long distance navigation was also solved in the Bronze Age, in fact you cannot have bronze without shipping tin or copper from one of the few known mines. Definitely no more than a C for History. 92.19.86.70 06:39, 28 May 2026 (UTC)

Surely they would understand the concept of things, like food, being spoiled? Dogman15 (talk) 00:16, 28 May 2026 (UTC)

I honestly think there should be a category for things common now yet ridiculous then. I've seen 4 comics with that theme already, and there must be more GSLikesCats307 (talk) 09:37, 28 May 2026 (UTC)

The concept of the spoiler probably would only be relevant to someone with a recreational viewpoint and relatively free access to information, something that wouldn't have been common, or even possible, until recent times, except perhaps in limited circumstances with those who were very wealthy and influential. In other cases, such as with the example in the comic, such information would have been highly desirable to pretty much anyone with the ability to understand it and utilize it, and instead it would have been a Disruptive innovation. SammyChips (talk) 16:35, 28 May 2026 (UTC)

Why is the explanation clearly written by an LLM? Half the explanation has nothing to do with anything the comic is about, like time travel paradoxes are not involved at all. 2A00:23C6:AB94:B601:BFF5:69F3:97C5:4571 22:05, 28 May 2026 (UTC)