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TagAdam Frank (on multiverse)

exploring-the-multiverse-some-elements-provided-courtesy-of-nasa-stockpack-adobe-stock
Exploring the Multiverse Some elements provided courtesy of NASA

Astrophysicists Lock Horns Over Whether Multiverse Must Exist

Ethan Siegel says it follows naturally from inflation; Adam Frank says inflation is not that robust a theory

Recently, online magazine Big Think challenged two astrophysicists, Ethan Siegel (Yes) and Adam Frank (No) to debate the question. From Ethan Siegel’s argument for the multiverse: If cosmic inflation and quantum field theory are both correct, then the Multiverse arises as an inevitable consequence of the two, combined… Those regions of space where inflation end and the hot Big Bang begins are each their own, independent Universe, and together, they make up a Multiverse. We may not be able to measure these other Universes, at least not just yet, but there’s every reason to expect that if inflation and quantum field theory are both correct, then the Multiverse inevitably exists. Ethan Siegel and Adam Frank, “Is the Multiverse real? Two…