this post was submitted on 14 Jan 2026
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There is a guy on YouTube that simulates portals using real physics and science stuff, turns out that if you model the gravity on all sides of the portal it balances out and you would stop right in the middle of the two portals at least if they were perfectly over each other in a case like this you would stop somewhere in the middle of the slide because the gravity would travel between both portals
https://youtu.be/DydIhwLrbMk
The gravity is going down parallel to the portal opening though, so both portals have the same gravity direction, the only thing speeding you up is the slide
That's not how it works, when you actually simulate it it doesn't violate the laws of thermodynamics, the gravity would be bending outside of the portal so that it would be pulling up from the portal on the top, you should watch the video it is really technical but it explains almost every question you could ask about portals (except when it gets to relativity) because it is an actual simulation of gravity, and if that isn't enough he has an entire series, 3 portals? Portal inside of Portal? Portal moving onto a cube? Literally all of it and more.
Well thank god a magic portal doesn't violate the laws of thermodynamics, I was getting worried about science for a while there
Magic portals are one option but portals are actually completely allowed in relativity they probably don't exist but my point is you can make physically consistent portals that actually have laws they obey.
the fact that would violate the laws of thermodynamics (infinite energy) is a pretty good indication that's wrong.
Portals already violate the laws of thermodynamics. We’re arguing about whether gravity would work here.