Stephen Hawking and Extraterrestrial Life

Stephen Hawking believes that the existence of extraterrestrial life is a certainty. Furthermore, he believes that humans should be extremely cautious about interacting with it:

“To my mathematical brain, the numbers alone make thinking about aliens perfectly rational…The real challenge is to work out what aliens might actually be like…We only have to look at ourselves to see how intelligent life might develop into something we wouldn’t want to meet. I imagine they might exist in massive ships, having used up all the resources from their home planet. Such advanced aliens would perhaps become nomads, looking to conquer and colonize whatever planets they can reach.”

Hawking concludes that trying to make contact with alien races is “a little too risky”.

“If aliens ever visit us, I think the outcome would be much as when Christopher Columbus first landed in America, which didn’t turn out very well for the Native Americans.”

Hawking has made the argument in the past that humans must colonize space in order to survive and thrive:

“Sooner or later disasters such as an asteroid collision or a nuclear war could wipe us all out…But once we spread out into space and establish independent colonies, our future should be safe.”

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