The Disagreement of Stephen Hawking

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When Hawking argued that black holes are not completely black, if you take quantum mechanics into account, they radiate, how did that strike you? I can tell you exactly what happened. You see, I think I was away from Cambridge. So I was working in Cambridge at the time. But Dennis Sharma, who is a great friend of mine and I learned a lot of cosmology from, and he was Stephen Hawking's supervisor. He knew all the physics that was going around. It didn't take me long to come to the conclusion that it was probably right.

Sir Roger Penrose has had a remarkable life. He has contributed an enormous amount to our understanding of general relativity, perhaps more than anyone since Einstein himself -- Penrose diagrams, singularity theorems, the Penrose process, cosmic censorship, and the list goes on. He has made important contributions to mathematics, including such fun ideas as the Penrose triangle and aperiodic tilings. He has also made bold conjectures in the notoriously contentious areas of quantum mechanics and the study of consciousness. In his spare time he's managed to become an extremely successful author, writing such books as The Emperor's New Mind and The Road to Reality. With far too much that we could have talked about, we decided to concentrate in this discussion on spacetime, black holes, and cosmology, but we made sure to reserve some time to dig into quantum mechanics and the brain by the end. See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.