Quote:
Originally Posted by Max Cow Disease
Stephen Hawking's babbled about this from time to time. He figures that it's nearly impossible that there is not extraterrestrial life out there in some form, and likely in many forms (interestingly enough, he also advises that we avoid contact with any such life).
The chance of actually encountering intelligent life from another solar system/galaxy seems so immensely remote. With higher intelligence come more varied and advanced methods of self-destruction; on this planet alone we already deal with nuclear bombs, bio-weapons, etc. and yet haven't even begun to scratch the surface of exploration outside our own planetary realm. A hypothetical species of intelligent beings from elsewhere who could actually reach us before we reach them could very well be a near impossibility if for no other reason than the fact that they'd likely have destroyed themselves already somewhere upon the path of advancement, as we already almost have on so many occasions.
Fun conjecture, though...
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You are making the assumption that other forms of intelligent life would have the same human nature to destroy eachother. That is a human trait, highly unlikely all other forms of life out there would share that trait.