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Have we seen any proof of life out there? Well, no... So if there's an alien race out there that's at the same level of technology as we are, could they prove t

Have we seen any proof of life out there? Well, no... So if there's an alien race out there that's at the same level of technology as we are, could they prove that we exist? Well no... Let's think about that for a second, because to me, it's too early to tell since we don't possess the necessary technology for interstellar travel or any other technology that could prove it. And no other alien race might not either. Since we simply don't broadcast our location to half the galaxy that we exist we can't expect another race to it. Finding something that might not want to be found has proven to be tricky and I think drawing the conclusion that there's no other advanced life out there is arrogant at best.

ben_w 8y ago
From what I’ve read, we do have the technology, but not the desire to spend so much money on what would be a vanity project with no return on investment possible due to the timescales involved. Especially as we expect our costs to come down and our early ships to be overtaken. An alien civilisation with our technology and a million year headstart, trivial compared to the age of Earth, would have had time to build a K3 civilisation. (Assuming you can call things with that sort if time lag “a civilisation” rather than “a collection of civilisations the size of a K3”).