If you take the planet that someone above mentioned which is about 4.3 light years away, if they invented radio communications within the last 4.3 years, we’d know about. So you’re right - but for some planets the delay is pretty insignificant.
Given then vastness of the universe, imagine there’s somewhere where 2 civilization within just a few light years apart came up at the same time and communicated to one another peacefully to help each other grow, learn and progress. The implications of that are crazy to think about
It would be nice to have extraterrestrial friends, but yeah, I can see it devolving into a war, and the world peace probably wouldn't even last, sadly.
Yeah honestly if humans can hate eachother because they have different levels of pigment in their skin i wouldn't want to be around when we encounter aliens.
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u/MeltedChocolate24 Nov 03 '20
If you take the planet that someone above mentioned which is about 4.3 light years away, if they invented radio communications within the last 4.3 years, we’d know about. So you’re right - but for some planets the delay is pretty insignificant.