The Portal Paradox

Published on July 7, 2019
21

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This video is about the Portal Paradox – a paradox in the video game Portal (and Portal 2) regarding whether or not a companion cube passing through a moving portal plops out of the other end with no speed (velocity, momentum), or shoots out at high speed. It’s a question of conservation of momentum, relativity of velocities, wormholes, 3D printers and quantum teleportation, glitches, and more.

REFERENCES

Conservation of momentum

https://en.wikipedia.org/wiki/Momentum#Conservation_in_a_continuum

Principle of Locality

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

YouTube video of testing the Portal 2 game engine on the portal Paradox https://youtu.be/S85nudR6D-Y

Tutorial for how to program the Portal portals on your own: https://www.gamasutra.com/view/feature/132164/games_demystified_portal.php

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Created by Henry Reich

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