Addressing the Biggest Controversies in Modern Cosmology with George Efstathiou [Ep. 436]

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Modern cosmology is full of controversies, challenges, and
unresolved tensions. This can, of course, be very frustrating. But
it’s also extremely fun!  Especially if we approach these
challenges with brilliant minds who aren’t afraid to tackle them
head-on.  One such luminary is the renowned George Efstathiou.
George is a British astrophysicist and Professor of Astrophysics at
the University of Cambridge. He was the first Director of the Kavli
Institute for Cosmology at the University of Cambridge from 2008 to
2016.  George joins me today for a cosmological episode in
which we look at cosmic acceleration, Hubble tension, Sigma-8
tension, inflation theory, BICEP2, Planck collaboration, and
more.  Tune in! Key Takeaways: 00:00:00 Intro 00:04:25
Baseless claims in cosmology  00:13:57 Solving the Hubble
tension 00:23:11 Axion-like early dark energy  00:28:03
Primordial magnetic fields  00:30:36 Solving the Sigma-8
tension  00:38:37 Inflation and the Multiverse  00:48:30
BICEP2  00:54:50 Existential question 00:56:42 Outro  —
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Learn more about George Efstathiou: Website:
https://people.ast.cam.ac.uk/~gpe/ ️ Follow me on your fav
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