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this post was submitted on 15 Nov 2023
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Where does the energy go if you are already moving when you teleport? Do you somehow lose all mass for a brief second? Instant transportation from point A to point B means that there is no in-between state to change the variables of nature. Zero time passes between being here one second and there the next.
Most everything that has mass and is moving has momentum. If momentum were to somehow be cancelled, which it can't be, your body would probably just stop completely. Even electrons have mass (9.1093837 × 10-31kg) and just stopping all electrical signals in your body at the same time seems like a bad thing. (I say "most everything", because there are these strange things called photons. It doesn't have mass, but has momentum. It's also a particle (err.. "energy packet"?) and a wave, which is even weirder.)
Sure, we are taking about a completely fictional situation when it comes to teleporting so this conversation is just really just a thought experiment.
If you were granted any wish, but you only received an extremely literal version of that wish, what are the consequences? That is humorous to think about, actually.
If you are in fact moving, there'd be momentum, like you say. But if you don't? If you just sit there, and teleport from one comfy armchair into another, not changing anything about your position?
Well you see, there’s also the problem that if you teleported and it got rid of your momentum, unless something immediately speeds you back up to the speed of the earth, it will just woosh past you. Even if something like the air sped you up, while it’s speeding you up, the friction would likely tear you apart.
That goes back to my point about the humble electron.
There are a ton of things moving in your body all the time regardless if you are sitting still of not. The only thing that I can think of that would be drastically impacted by instant cancellation of momentum is electrical signals. I admit, that is absolutely pushing the boundaries of what I know about physics at that scale.
Stopping every electrical signal in your body simultaneously and assuming it will just resume spontaneously seems odd to me, is all.