I realized that if one reversed the direction of time in Penrose’s theorem so that the collapse became an expansion, the conditions of his theorem wo… - Stephen Hawking

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Engraved portrait of Stephen Hawking, facing right

I realized that if one reversed the direction of time in Penrose’s theorem so that the collapse became an expansion, the conditions of his theorem would still hold, provided the universe were roughly like a Friedmann model on large scales at the present time.

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About Stephen Hawking

Stephen William Hawking CH CBE FRS (8 January 1942 - 14 March 2018) was a British theoretical physicist, cosmologist, author and Director of Research at the Centre for Theoretical Cosmology within the University of Cambridge.

Biography information from Wikiquote · Portrait adapted from Wikimedia Commons, NASA (Public domain / CC0)

Also Known As

Native Name: Stephen William Hawking
Alternative Names: Hawking S. W. Hawking stephen S. Hawking

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