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"Slight variations in physical laws such as gravity or electromagnetism would make life impossible.
The necessity to produce life lies at the center of the universe's whole machinery and design."
John Wheeler, Princeton University professor of physics
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". . . the universe and the laws of physics seem to have been specifically designed for us. If any
one of about 40 physical qualities had more than slightly different values, life as we know it could
not exist: Either atoms would not be stable, or they wouldn't combine into molecules, or the stars
wouldn't form the heavier elements, or the universe would collapse before life could develop, and so
on . . . "
Stephen Hawking, considered the best-known scientist since Albert Einstein
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