Quote:
Originally Posted by cheerfulgreek
Yep. I have, and I don't necessarily totally disagree with it. Have you ever seen "What the bleep do we know?" It's a really cool documentary that kind of elaborates on something like this. I really don't believe aliens have been travelling to Earth. At least not now. I mean, if they are, I think they've already done it. I'm open to a lot of things, it's just that I can't see why other intelligent life forms would be travelling here, or even know of our existence. And if by chance they have, I just think it's already been done.
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I never heard of what the bleep do we know. But the main point Fermi was making was why have we found no sign yet of them. Even if they came and left, we would have found some sign. But he also calculated, being Fermi, roughly how long it would take them to do so if they wanted to. I think the figure was like 50 million years? I forget, but it was insignificant compared to the total age of the galaxy.
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