this post was submitted on 11 Dec 2023
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Uh, no shit? That's how light works once you're able to travel at relativistic speeds - communication over interstellar distances using light is going to take ages.
Even within our own solar system interplanetary travel will have significant communication time delays.
Edit: also, we already know that matter and light can't exceed c, but I wouldn't be surprised if we discover that other forces (gravitation, or another that we haven't understood yet) can transmit information at speeds >c. I wouldn't be surprised if we turned to quantum entanglement for instantaneous communication over extreme distances either.
Quantum entanglement is like ripping a photo in half, putting both halves in seperate envelopes and carrying them to opposite ends of the world.
As soon as you open your envelope, you instantly know which half of the photo is on the other side of the planet - Faster Than Light Information Transfer!
This is a great analogy. Consider it ~~stolen~~ pirated.