Quantum 2.0, Gravity, and the Search for a Theory of Everything | Paul Davies

Quantum mechanics and general relativity are the two pillars of modern physics, yet they remain fundamentally incompatible. Quantum theory describes the strange behavior of particles at the smallest scales, while Einstein’s general relativity explains gravity, spacetime, and the structure of the universe. Both theories have been experimentally confirmed to extraordinary precision, but when physicists attempt to combine them, the mathematics breaks down. Reconciling quantum mechanics with gravity is widely considered the biggest unsolved problem in physics. In this episode of Event Horizon, John Michael Godier speaks with physicist and cosmologist Paul Davies about the deep conflict between quantum mechanics and relativity and what it might take to resolve it. The conversation explores the origins of quantum theory, the mystery of quantum entanglement, the limits of theoretical physics, and why a theory of quantum gravity remains one of the most important goals in science. Paul Davies also discusses the implications of quantum physics for information, technology, and the future of physics itself, as well as broader questions about the role of observers in the universe, the search for extraterrestrial intelligence, and whether advanced civilizations might leave detectable technological signatures in space. Quantum 2.0: The Weird Physics Driving a New Revolution in Technology https://press.uchicago.edu/ucp/books/... 00:00 Introduction 05:55 Quantum Entanglement and Nonlocality 11:52 Interpretations of Quantum Mechanics and the Multiverse 17:56 Measurement and the Nature of Reality 23:59 Is Theoretical Physics Near Completion? 29:16 Limits of New Physics and Anti-Gravity Speculation 35:16 Quantum Communication and Information Limits 41:56 Technology vs Wisdom in the Future of Science 47:58 Are We Alone in the Universe? 53:57 Intelligence and the Rarity of Life 59:44 The Search for Technological Civilizations 1:05:40 SETI and Signs of Alien Technology 1:11:32 The Role of Observers in the Universe 1:17:20 Consciousness and the Quantum World 1:23:18 The Future of Physics 1:29:14 The Biggest Problem in Physics: Quantum and Relativity 1:35:05 Final Thoughts YouTube Membership:    / @eventhorizonshow   Podcast: hhttps://creators.spotify.com/pod/show... Apple: https://apple.co/3CS7rjT More JMG    / johnmichaelgodier   Want to support the channel? Patreon:   / eventhorizonshow   Follow us at other places! @JMGEventHorizon Music: https://stellardrone.bandcamp.com/ https://migueljohnson.bandcamp.com/ https://leerosevere.bandcamp.com/ https://aeriumambient.bandcamp.com/ FOOTAGE: NASA ESA/Hubble ESO - M.Kornmesser ESO - L.Calcada ESO - Jose Francisco Salgado (josefrancisco.org) NAOJ University of Warwick Goddard Visualization Studio Langley Research Center Pixabay Guest: Paul Davies Host: John Michael Godier Channel: Event Horizon