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

Join my mailing list https://briankeating.com/list to win a real 4 billion year old meteorite! All .edu emails in the USA 🇺🇸 will WIN! 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  — Additional resources: 📝 Get one month of Snipd Premium for free with this link: https://get.snipd.com/Cx7S/brianSnipd Snipd lets you take Smart Notes 🧠 with AI 💡 — it’s my favorite podcast player 😀 ! ➡️ Learn more about George Efstathiou: 💻 Website: https://people.ast.cam.ac.uk/~gpe/ ➡️ Follow me on your fav platforms: ✖️ Twitter: https://twitter.com/DrBrianKeating  🔔 YouTube: https://www.youtube.com/DrBrianKeating?sub_confirmation=1  📝 Join my mailing list: https://briankeating.com/list  ✍️ Check out my blog: https://briankeating.com/cosmic-musings/  🎙️ Follow my podcast: https://briankeating.com/podcast Into the Impossible with Brian Keating is a podcast dedicated to all those who want to explore the universe within and beyond the known. Make sure to subscribe so you never miss an episode! Learn more about your ad choices. Visit megaphone.fm/adchoices