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Conversely it’s impossible to prove there is life beyond earth. PROOF is a high standard. All our existing evidence seems to point to the fact that we are indeed alone in the universe.


> it’s impossible to prove there is life beyond earth.

why do you say that? If SETI finds unambiguous signals, and they're independently confirmed several times, why would that not be "proof"?

As for the last sentence, the less said the better. "All our existing evidence" is pathetically small.


Our lack of evidence tends to suggest that we are alone. But it's a mere conjecture. A single counterexample would invalidate it.




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