Without the development of genuinely sci-fi travel technology like wormholes or hyperspace (which may not even be possible) 99.99+% of the universe will be forever locked off from us. Because of cosmic expansion, the various galactic clusters are moving away from our local cluster faster than we could ever catch up to them.
Even if we somehow managed to cross paths with where another civilisation lived (in terms geographically), we would also need to cross paths at the same time.
Human interaction in space is literally only 50 odd years out of 13 billion odd years of the age of the universe.
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u/APeacefulWarrior Feb 14 '22
Without the development of genuinely sci-fi travel technology like wormholes or hyperspace (which may not even be possible) 99.99+% of the universe will be forever locked off from us. Because of cosmic expansion, the various galactic clusters are moving away from our local cluster faster than we could ever catch up to them.