New Books in Science, Technology, and Society cover image

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

New Books in Science, Technology, and Society

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Einstein Equations - The Scaling Out of the Big Bang

In order to express the einstein equations in this conformal description, you need a field which keeps track of the scaling. A positive cosmological constant and creation of dark matter are needed for consistency. And thirdly, you need rest mass to come in again. Dark energy without thecerny stent is inconsistent with other ideas about how universe formed. But i think it's correct now that we know what entrope means - even if some people don't believe me.

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