this post was submitted on 18 Aug 2023
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Portals already break the laws of physics. The virtual world inside the orange portal is moving at the same velocity as the trolley, think about how much kinetic energy that is
I don't think the portal contains anything within itself, though. The portal is a non-entity - it's just that if you pass through the portal, you suddenly find yourself in a different location, as if that location were right next to you. The portal itself has no other properties of its own, I'd think.