ok
I have a question for anybody
With the technology we have and that SETI is using, from how far out in space could we detect evidence of human life on earth?
To clarify this question let me ask it another way.
If there were another identical earth with the exact same life on it as ours, from what distance could we detect with full confidence that there is “intelligent” life on the other earth?
Keep in mind that if it’s 50 light years away it could only detect whatever we were up to 50 years ago or vice versa
|