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

Ideas Roadshow Podcast

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Is Inflation a Standard Inlationary Cosmology?

Inflation needs a universe which is rather smooth and flat. And that was the thing inflation was supposed to be doing for you. So we're tring to explain why the universe is uniform and smooth, and we say, comeeg out of the big bang. That's very unlikely. It's unpossible. It just seems like it requires a conspiracy over large scales. Ah, so in order to explain your first unlikeliness, you've actually had to go to a situation which is expedentially more unlikely. What other concerns do you have? I youre alluding to something before. Well, ok, so am. But already, shortly after inflation was developed, two big issueso

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