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this post was submitted on 29 Jun 2024
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Maybe it's impossible to travel faster than the speed of light? So it may not be a thing where aliens can just swing by our solar system to snap a few photos before heading off to the next one.
I'm sure that's the case. You can travel to other stars without ftl, it's just a lot slower and probably one way. It's really pretty limiting for society, for instance, without ftl an interstellar "civilization" is basically out of the question, you can't govern another star system without at the very least faster communication.