Quote:
Originally Posted by Mr. Charlie
I think aliens probably exist. I don't think they've visited Earth. But what do I know. I'll tell you. Nothing.
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Supposing that life on earth is a natural phenomenon, which it appears to be, then there's no reason to assume that, given the size of the universe, it is a one off anomaly.
But, I agree, that has nothing to do with whether or not they've visited us.