439
submitted 2 months ago by Stamets@lemmy.world to c/memes@lemmy.world

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[-] ccunning@lemmy.world 77 points 2 months ago

Fools!
…limiting themselves to Euclidean geometry…

[-] mmddmm@lemm.ee 21 points 2 months ago

Only one of them is limiting himself to Euclidean geometry. The others are perfectly calm.

[-] ccunning@lemmy.world 2 points 2 months ago

“…waving a gun around!?…”

[-] cmgvd3lw@discuss.tchncs.de 1 points 2 months ago

You beat me to it.

[-] Septimaeus@infosec.pub 1 points 2 months ago

Also perhaps one of the middle lines is unlabled and the diagram isn’t at all to scale (or is the result of forced perspective?) but I think that exhausts my interpretive charitability quota for the day lol

[-] owenfromcanada@lemmy.ca 47 points 2 months ago

Looks like a tetrahedron to me.

[-] smuuthbrane@sh.itjust.works 20 points 2 months ago

Exactly! The diagram is simply a schematic.

[-] Isa@feddit.org 5 points 2 months ago

Just wanted to … nevermind.

Too late is too is too late is …

[-] untakenusername@sh.itjust.works 2 points 2 months ago

exactly what I came here to say

[-] gedaliyah@lemmy.world 47 points 2 months ago

Saddle shaped universe confirmed

[-] RandomStickman@fedia.io 20 points 2 months ago
[-] GoodLuckToFriends@lemmy.today 9 points 2 months ago

Pffft, Dnd had the 'first diagonal 5, second diagonal 10' rule. It worked well enough, aye?

[-] brown567@sh.itjust.works 5 points 2 months ago

It doesn't anymore =(

5e uses diagonal = 5'

[-] edgemaster72@lemmy.world 3 points 2 months ago

Alternating diagonals is in the (2014) DMG as an optional rule at least

[-] brown567@sh.itjust.works 2 points 2 months ago

Oh good! Octagons are a much better approximation of a circle than squares

[-] Zagorath@aussie.zone 2 points 2 months ago

4e just used "squares" instead of 5 feet, but it, like 5e, used chebyshev distances.

Pathfinder 2e uses alternating diagonals though.

[-] Vespair@lemm.ee 1 points 2 months ago

Well anything after 3.5e is a watered-down, bastardized version of the game anyway.

[-] BombOmOm@lemmy.world 17 points 2 months ago

Well you see, space isn't flat in this very localized area!

[-] DavidGarcia@feddit.nl 15 points 2 months ago

calm down, they're constraints on distance, not distance

[-] xia@lemmy.sdf.org 10 points 2 months ago
[-] bampop@lemmy.world 1 points 2 months ago

ikr? It's like some people don't even recognize a tetrahedron

[-] untakenusername@sh.itjust.works 9 points 2 months ago

if the people were aranged in 3d in the shape of a tetrahedron (triangular pyramid) this would work out fine

[-] Uranus_Hz@lemm.ee -1 points 2 months ago* (last edited 2 months ago)

No

Unless the measurement is from the corner to where the lines cross (peak of the pyramid), but that is not at all clear from how the diagram is drawn.

[-] davidagain@lemmy.world 6 points 2 months ago

It's not a square based pyramid, it's a triangular based pyramid. Imagine the top right hand one floating up onto the air and moving to hover above the centre of the other three (which move to make an equalateral triangle). The distances work but the layout changes.

[-] Danitos@reddthat.com 7 points 2 months ago

Funnily enough, this is valid under Chebyshev metric, same that kings in chess follow.

[-] mumblerfish@lemmy.world 6 points 2 months ago

What? Everytime I meet other people we always arange ourselves in the shape of a simplex of the appropriate dimension. Doesn't everyone?

[-] davidagain@lemmy.world 3 points 2 months ago* (last edited 2 months ago)

So the fifth person to arrive moves to the centre of the tetrahedron and shifts roughly 1.299m into the past or future.

I have a few questions.

  1. How do you attain time offset?
  2. Doesn't that make conversation difficult?
  3. What even is the fifth dimension?
  4. How do you convert a distance in metres into a distance in time? You would surely then have a universal m/s? Oh, wait, there is a universal speed, it's the speed of light, which means 1.299m is equivalent to about 4.3 billionths of a second, which is considerably less impressive for question 1 and just not at all problematic for question 2.
  5. If you're using very fast motion for your time offset, doesn't that make conversation even more difficult? How fast would you need to be going to dilate time for a few billionths of a second? Doesn't Heisenberg uncertainty start to have an impact here? How can you be sure you got it right?
[-] Randelung@lemmy.world 3 points 2 months ago

No one said right angles.

[-] Cruxifux@feddit.nl 3 points 2 months ago

This is so good hahaha

[-] middlemanSI@lemmy.world 3 points 2 months ago
[-] samus12345@lemm.ee 1 points 2 months ago* (last edited 2 months ago)

Middle one should be 2,12m. 😤

Or the other 4 should be 1,06m if the middle one is correct.

[-] possiblylinux127@lemmy.zip 3 points 2 months ago

It clearly says 1.5m

[-] Luffy879@lemmy.ml 1 points 2 months ago

Explanation:

So, Theres the sentence of Pythagoras. It says that c^2^ = a^2^ + b^2^ when the triangle has a 90° corner

Since a square is just 2 triangles, it applies. That means c (the distance from Person a to Person c) should be √(2×1.90^2^). But that is 2.7m.

[-] Knock_Knock_Lemmy_In@lemmy.world 1 points 2 months ago

These instructions are in 3d.

[-] Luffy879@lemmy.ml 1 points 2 months ago

Even if we would take it from the head of person a to the toe of c, its still a triangle

[-] regdog@lemmy.world 1 points 2 months ago

Middle one should be the square root of 4.5 meters, or 2.12 meters

[-] LovableSidekick@lemmy.world 0 points 2 months ago

Tetrahedrons man, tetrahedrons.

[-] intensely_human@lemm.ee 0 points 2 months ago

So this makes me wonder if one could force a move into a higher dimension by somehow constraining a set of connected distances in this way.

Sort of like protein folding as a way to bootstrap a dimensional jump.

[-] LovableSidekick@lemmy.world 1 points 2 months ago* (last edited 2 months ago)

You might like And He Built a Crooked House by Robert Heinlein - the story of a tesseract-shaped house that folds itself into a real tesseract during an earthquake.

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

this post was submitted on 15 May 2025
439 points (98.2% liked)

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