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DudesworthMannington t1_j0znwpb wrote

Reply to comment by Few-Swordfish-780 in What if time travel is impossible because of this? by [deleted]

I think instant long distance communication isn't often considered and it's more realistic. Imagine if we could communicate with aliens a million light years away that possess a hypothetical super telescope that could view the surface of the Earth. They could send us a live feed of dinosaurs walking around.

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IsoscelesCircle t1_j0zpci7 wrote

If my understanding is correct, with quantum entanglement it very well might be feasible. There have been a few experiments using quantum entanglement for instantaneous communication regardless of distance. Now the question would be how we go about quantum entangling particles that are physically nowhere near each other, such as light years away from each other.

Here is an interesting article on the subject:
https://newatlas.com/telecommunications/quantum-entanglement-atoms-distance-record/

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