April 9: Physicists

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April 9

Once we accept our limits, we go beyond them.
~Albert Einstein

If aliens visit us, the outcome would be much as when Columbus landed in America, which didn’t turn out well for the Native Americans. … We only have to look at ourselves to see how intelligent life might develop into something we wouldn’t want to meet.
~Stephen Hawking, Into the Universe with Stephen Hawking (2010), also quoted in “Stephen Hawking warns over making contact with aliens” at BBC News (25 April 2010).