Hawking: Aliens may pose risks to Earth - Space- msnbc.com - 2 views
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"We only have to look at ourselves to see how intelligent life might develop into something we wouldn’t want to meet,"
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The 68-year-old scientist said a visit by extraterrestrials to Earth might well be like Christopher Columbus arriving in the Americas, "which didn't turn out very well for the Native Americans."
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Hawking said an attack by interstellar predators is just one of the dismaying possibilities in the search for intelligent life beyond Earth. Another possibility is that intelligence itself might be inimical to life. Hawking pointed out that humanity has put itself on the edge of its own destruction by creating nuclear bombs and other weapons of mass destruction.
