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! Previously on Thirty Minute Thesis I've explored alternatives to string theory, such as Loop Quantum Gravity. But I realized I hadn't yet explored the basics of string theory itself. So in today's video I ask: "What would It take for String Theory to move beyond the realm of pure math, Into verifiable territory"? Is the fact that many 'discoveries' in string theory revolve around the math of theory itself or already disproven facts about our universe -- such as the fact that AdS/CFT correspondence relies on a negative cosmological constant, in contrast to the observed positive cosmological constant -- already fatal to this once-most-promising of all theories? Or could it be salvaged and, if so, how? Do we need new predictions, or would even a retrodiction suffice? This episode of Thirty Minute Thesis explores the experimental minimum -- the very basics that any purported theory of everything should aspire to achieve. We discuss the basics of the theory as delightfully explicated by Ed Witten in Physics Today and compare it to other approaches, such as Loop Quantum Gravity and more. Welcome to another episode of Thirty Minute Thesis -- a solo deep-dive into a fascinating topic in cosmology, physics, or science itself. Today's video explains what String Theory must do in order to prevail as a candidate Theory of Everything. References: 2:29 Loop Quantum Gravity: A new contender https://www.youtube.com/watch?v=-6A6myur--c 6:45 Bouncing Cosmology ?DUNKS? on the Big Bang! https://youtu.be/Gvi2hL2FnOc 7:27 https://www.youtube.com/watch?v=GMdW5zNFTYA 7:41 Muon g-2 with Dan Hooper https://www.youtube.com/watch?v=GMdW5zNFTYA 7:54 Fifth Force? With James Beacham https://www.youtube.com/watch?v=3to9ymn-XKIJ ? Watch my most popular videos:? A New Contender is Here! https://www.youtube.com/watch?v=-6A6myur--c Frank Wilczek https://youtu.be/3z8RqKMQHe0?sub_confirmation=1 Weinstein and Wolfram https://www.youtube.com/watch?v=OI0AZ4Y4Ip4?sub_confirmation=1 Sheldon Glashow: https://youtu.be/a0_iaWgxQtA?sub_confirmation=1 Michael Saylor The Physics of Bitcoin https://youtu.be/CaN_CDKqXOg?sub_confirmation=1 Sir Roger Penrose, Nobel Prize winner: https://www.youtube.com/watch?v=AMuqyAvX7Wo?sub_confirmation=1 Jill Tarter https://youtu.be/O9K9OBd3vHk?sub_confirmation=1 Sara Seager Venus LIfe: https://youtu.be/QPsEDoOTU6k?sub_confirmation=1 Noam Chomsky: https://youtu.be/Iaz6JIxDh6Y?sub_confirmation=1 Sabine Hossenfelder: https://youtu.be/V6dMM2-X6nk?sub_confirmation=1 Sarah Scoles: https://youtu.be/apVKobWigMw Stephen Wolfram: https://youtu.be/nSAemRxzmXM ➡️ 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 A production of http://imagination.ucsd.edu/ Support the podcast: https://www.patreon.com/drbriankeating Credits: Script and Research by Taiqoor Ahmad Produced by Lucas Sheinbach Thanks to UCSD's StudioU's Treb Padula -~-~~-~~~-~~-~- Please watch: "Neil DeGrasse Tyson: Plays the Race Card!" https://www.youtube.com/watch?v=Cs4QCSe05I4 -~-~~-~~~-~~-~- ... https://www.youtube.com/watch?v=fbIso1SFwu4

In this episode of The Michael Shermer Show, based on the cover story from Skeptic magazine 26.1 (2021), Michael speaks with University of California professor of physics Brian Keating about: time, infinity, the shape of the universe, the multiverse, quantum gravity, string theory, the laws of nature, and more… Listen to this fascinating episode for free and order a copy of the Skeptic magazine 26.1 to read Keating’s cover story, complete with splendid graphics, charts, and illustrations (in print or digital formats). SKEPTIC 26.1 https://www.skeptic.com/magazine/archives/26.1/ SAVE 25-40% on SKEPTIC Magazine Subscriptions 1 year/4 issues 25% off print subscriptions (now US $22.50. Reg. US $30) 40% off digital subscription (now US $8.99. Reg. US $14.99) Digital subscribers get the current issue instantly, and three more issues follow as they are released throughout the year. Digital subscription can be synchronized to your favorite handheld devices: https://www.skeptic.com/magazine/app/#sync-devices Subscribe to the digital editionhttps://pktmags.com/keatingSubscribe to the print editionhttps://shop.skeptic.com/subscribeThen enter coupon code at checkout: keating A Conversation with Michael Shermer and Brian Keating Part 1: How it All Began: Cosmic Inflation, the Multiverse, and the Nature of Scientific Proof In this episode, Shermer and Keating discuss: cosmology and Intelligent Design, the fine-tuning of the universe, the multiverse and theism: many worlds or one God? How does the Intelligent Designer or God as a disembodied mind interact with the physical universe? If the origin of the universe and its fine-tuned nature points to an intelligence or mind behind it, why don’t most cosmologists, physicists, and astronomers accept that conclusion? What are laws of nature? Can you explain the origin of the universe by laws and rules of things in the universe? What came before the Big Bang? What caused the bang that gave rise to our universe? Why there is something rather than nothing? inflationary cosmology, What is gravity? What is quantum gravity? How did the Big Bang theory win out over the Steady State theory? the difference between Popperian falsification, Kuhnian paradigm, and consensus science, Is string theory physics, metaphysics, or mathematics? What shape is the universe? Open, closed, or flat? What is dark energy and dark matter? What is time? What is infinity? cyclic universes and the multiverse. Join this channel to get access to perks: https://www.youtube.com/channel/UCmXH_moPhfkqCk6S3b9RWuw/join Support the podcast: https://www.patreon.com/drbriankeating And please join my mailing list to get resources and enter giveaways to win a FREE copy of my book (and more) http://briankeating.com/mailing_list.php ? ? ? ... https://www.youtube.com/watch?v=l0sHQOKoKDI