this post was submitted on 14 Apr 2024
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Science Memes

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[–] BeefPiano@lemmy.world 1 points 11 months ago (1 children)

Time and space are the same thing, if you’re traveling in time it seems like you could travel in space at the same time.

[–] GoodEye8@lemm.ee 1 points 11 months ago* (last edited 11 months ago)

I think that's the joke. Media presents time travel as just inputting the date and off you go, but really you need to input time AND space because the two are interconnected.

Of course we could just imagine that all time machines somehow calculate the space itself just by knowing the current spacetime and the inputted time, but now we're giving writers too much benefit of doubt. In most cases time travel is used as plot device and very little thought is given to how it could work.

And an interesting sidenote. This also means that teleportation is a special case of time travel and if you've solved time travel you've probably also solved teleportation.