I'm reading "Battle of the Big Bang", by Afshordi and Halper. It's about before the Big Bang, and I can tell you there're *many* theories proposed.
Nowadays, many cosmologists think the universe has existed forever, whether through eternal inflation, cyclic cosmologies with a bounce or other variant. (Fred Hoyle must be turning in his grave).
Indeed, an important part of the book is about inflation. The best definition of the current status of inflation is given by the applied cosmologist (and a world expert on the CMB) Douglas Scott: "something like inflation is something like proven".😅
David Quintero
npub1qf…ar5tc
2026-10-25 00:36:24 UTC
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