Roger Penrose, “The Cyclic Universe” (Open Agenda, 2021)
New Books in Science, Technology, and Society
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What Happened Before the Big Bang?
When i first heard about this, because i don't pretend to have any deep understanding of this stuff, whatever. But one thing i can say with complete certainty is, when you're a physics undergraduate or physics graduate student, and if anybody would ask a question like, er, what happened before the big bank? That's not only a stupid question, that's a nonsensical question. And nowi i'm doing the stupid thing. This argument would be shooting down. A useful point, and also an embarrassing one, because you're describing me when you say, these s itsa mtis question. You say, well, time is meaningless. To talk about time all before the big ban
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