New Books in Science, Technology, and Society cover image

Roger Penrose, “The Cyclic Universe” (Open Agenda, 2021)

New Books in Science, Technology, and Society

00:00

The Second Law of Thermodynamics

Most of our equations, it seems, are actually time symmetric. It doesn't really matter whether we change change. So why do things go the way they do? Why do we have the sense that time is going in one particular direction? If we incorporate gravity, and we look at the arro of time with the second law of thermodynamics, it works in a completely different way.

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