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Portal Paradox (lemmy.world)
submitted 10 months ago by YoorWeb@lemmy.world to c/science_memes@mander.xyz
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[-] Spzi@lemm.ee 1 points 10 months ago

Consider these two pixel-oval portals:

  xx         oo
x    x     o    o
x    x     o    o
x    x     o    o
x    x     o    o
  xx         oo

They are the same size, and you can easily make a bijective mapping for each of their pixels.

Rotate one two times in 3D space by 90°, and it fits through the other. If you want more wiggle room, make them taller.

this post was submitted on 06 Jan 2024
227 points (90.4% liked)

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