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Paul Steinhardt, "Inflated Expectations: A Cosmological Tale" (Open Agenda, 2021)

New Books in the History of Science

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Is Quantum Physics a Real Threat?

Inflation was so effective that it seemed to make the universe so glassy, smooth that you'd never make structure in the universe. So could quantum physics solve this problem? After all, inflation wasii. Without quantum physics would make it asy smooth. That means the energy everywhere in space would be identically the same. Quantum physics doesn't allow that to hap en energy. It's going to produce some kinds of fluctuations. And we thought we made the universe smooth, but now we actually may have ruined things. We put in the quantum physics. The idea doesn't work after all.

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