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submitted 1 year ago by inkican@kbin.social to c/scifi@kbin.social

The ability to jump forward and backwards in time has long fascinated science fiction writers and physicists alike. So is it really possible to travel into the past and the future?

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[-] Knusper@feddit.de 0 points 1 year ago

I'm no physicist, but this is such massive horseshit:

One of the peculiar observations that has emerged from the study of the quantum realm is non-locality. A change in a particle's state in one location can instantaneously influence another "entangled" particle somewhere else [...]

"A lot of physicists are very unhappy with the possibility of non-locality," says Adlam. That's because, for the effect to be instantaneous, the information must be conveyed from place to place at faster than the speed of light. This is supposed to be impossible.

Imagine, you've got a printed photograph. You rip it in half and put each half into identical envelopes. You mix them up and send one of them to Australia.
Now you open the envelope you kept and see that it's the left half. Boom! Instantaneous knowledge that the envelope in Australia contains the right half. Faster than light!

As far as my understanding goes, this is all there is to quantum entanglement. But because it's quantum, everyone loses their minds over it.

this post was submitted on 13 Nov 2023
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