

Into the Impossible With Brian Keating
Big Bang Productions Inc.
Think like a physicist. Wonder like a human. Into the Impossible is where Cosmic Conversations happen — uniting Nobel Prize winners, iconoclasts, authors, and technologists to explore reality’s deepest questions. From AI to aliens, from biophysics to the brain, from the cosmos to the multiverse, Brian Keating, Chancellor’s Distinguished Professor of Physics at UC San Diego covers it all.If you’ve ever asked What’s out there? or What’s next?, this is where curiosity meets clarity.Learn to think like this. 🎙 Full episodes, notes & more: briankeating.com/podcast
Episodes
Mentioned books

Apr 26, 2023 • 1h 12min
Brian Keating on the Modern Wisdom Podcast with Chris Williamson (#313)
In this interview with Chris Williamson on the Modern Wisdom Podcast, Brian Keating talks about what it takes to build a telescope that can detect the farthest regions of space in the Antarctic, what the Nobel Prize originally set out to achieve and how the politics of the physics community can often get in the way of progress. He discusses his book Losing The Nobel Prize and his motivations for writing it.
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Apr 23, 2023 • 1h 29min
Marc Kamionkowski: Crises In Cosmology (#312)
Watch the video of this episode here: https://youtu.be/RVLMnBsJgKI?=sub_confirmation=1
Marc Kamionkowski is a theoretical physicist, who’s research is in cosmology, astrophysics, and elementary-particle theory. His main focus has been on particle dark matter, inflation the cosmic microwave background, and cosmic acceleration. His 1999 paper, A Polarization Pursuer’s Guide inspired Professor Keating to create the BICEP experiment. He is the William R. Kenan, Jr. Professor of Physics at Johns Hopkins University.
00:00:00 intro
00:04:39 The BICEP 2 Press Conference St. Patrick’s Day 2014 and how Professor Kamionkowski inspired the BICEP collaboration and the story of the well known cosmology paper: A Polarization Pursuers' Guide, 1999 ( https://arxiv.org/abs/astro-ph/9909281 ), the inspiration for BICEP.
00:06:58 Did you realized the implications of your paper for telescope design at the time? Marks’s proposition to measure the amplitude of primordial gravitational waves, even with a small aperture telescope. The origins of BICEP and the Simons Observatory.
00:15:40 Optical surveys are still a cornerstone of observational cosmology like weak gravitational lensing and comparisons to E/ B mode curl components measurements.
00:28:50 Is a theory of everything possible? Are physicists “lost in math”? What to you think make good mathematical models? Little attention has been given to alternatives to symmetries in string / super-symmetry theories which have not been productive? Behold the examples of Bohr and Balmer’s formula and the breakthroughs of the 20th century. The luck of 20th Century Physics. The price tags and time scales are much bigger now. Don’t abandon the notion of symmetry!
00:34:53 The cosmological principle; should it go away? What would you do if it did? All models are approximations. We have good descriptions.
00:41:00 The social contagion of Eric Lerner and the controversy over the refutation of the Big Bang Theory. https://iai.tv/articles/the-big-bang-didnt-happen-auid-2215 Does it make you re-evaluate the standard model of the Universe?
00:45:5l0 About the Hubble Tension. What is it? Why worry? Or not!
00:56:00 Professor Kamionkowski’s explanation of early Dark Energy and his 2018 paper.
00:59:10 Anti-helium and anti-matter clouds
01:01:10 What theoretical physics “crisis” or anomalies should we most focus on? How do you choose? Let’s not all focus on the same problems! What about the cosmic optical background found by the New Horizons Long Range Reconnaissance Imager?
01:10:35 Is there an Axion Persurer’s Guide to be written?
01:12:00 What is the status of the theory of Inflation and where will it go? A field Marc helped initiate.
01:17:50 First existential question: What would you put on your monolith?
01:21:20 What have you changed you mind about?
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5 snips
Apr 11, 2023 • 1h 3min
Sir Roger Penrose | The Emperor’s New Mind: Consciousness & Computer | INTO THE IMPOSSIBLE Podcast (#311)
Watch the video of this episode here: https://youtu.be/5Ag6jpvIa2w?=sub_confirmation=1
On 6 October 2020 The Royal Swedish Academy of Sciences has awarded the 2020 #NobelPrize in Physics with one half to Roger Penrose and the other half jointly to Reinhard Genzel and Andrea Ghez.I was delighted to have had this chance to discuss life, physics and everything with my friend Sir Roger Penrose, who endorsed my book Losing the Nobel Prize back in 2018. Well, now Sir Roger has WON the Nobel Prize.We discussed the first popular science book your host Professor Keating ever read: The Emperor's New Mind: Concerning Computers, Minds, and the Laws of Physics https://amzn.to/306hUG1 and Shadows of the Mind: A Search for the Missing Science of Consciousness https://amzn.to/2QFbt9MSir Roger Penrose OM FRS (born 8 August 1931) is an English mathematical physicist, mathematician and philosopher of science. He is Emeritus Rouse Ball Professor of Mathematics in the University of Oxford, an emeritus fellow of Wadham College, Oxford and an honorary fellow of St John's College, Cambridge.Penrose has made contributions to the mathematical physics of general relativity and cosmology. He has received several prizes and awards, including the 1988 Wolf Prize for physics, which he shared with Stephen Hawking for the Penrose–Hawking singularity theorems.Penrose sat down with Professor Brian Keating to discuss artificial intelligence, consciousness, cosmology, and the many fascinating developments in physics since the publication of The Emperor’s New Mind in 1989.Additional Talks by Sir Roger Penrose:
Conformal Cyclic Cosmology: https://www.youtube.com/watch?v=zt1WH_SkazQ&t=2284s
New Theory of Dark Matter: https://www.youtube.com/watch?v=xlSMME-Cl5g
Physics and Fantasy: https://www.youtube.com/watch?v=aaIdJMxP6bA
www.twitter.com/RogerPenrosePhy Summary of Professor Prenrose Concepts from Think Like A Nobel Prize Winner: https://briankeating.com/roger_penrose.php
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Apr 9, 2023 • 2h 9min
“I only had 30 minutes to Invent Eternal Inflation!” Andrei Linde | INTO THE IMPOSSIBLE Podcast (#310)
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Andrei Linde is one of the main authors of inflationary cosmology. At present, it is the leading candidate for the theory of the very early stages of expansion of the universe and formation of its large scale structure. In this podcast Linde will describe some of the popular versions of this theory, as well as observational evidence it favor of inflationary cosmology.We also discuss Andrei’s career, the big problems in cosmology, and how Andrei invented eternal chaotic inflation which can lead to a universe which is constantly inflating, where new universes are constantly being created.Eternal inflation is a theory that states that the universe is constantly inflating, and that new universes are constantly being created. Here's his 1986 paper about it ETERNAL CHAOTIC INFLATION http://cds.cern.ch/record/167897/files/CM-P00066672.pdfProfessor Linde’s seminal book PARTICLE PHYSICS AND INFLATIONARY COSMOLOGY is available in PDF format: https://arxiv.org/pdf/hep-th/0503203.pdfHere are some past episodes that complement this one:
Anna Ijjas: Bouncing cosmology https://youtu.be/aGlLjq4OcmE
Will Kinney: An Infinity of Worlds https://youtu.be/iDsqy9QVGoI
Neil Turok Endless Universes: https://youtu.be/Dt5cFLN65fI
Note there are a number of alternative theories to cosmic inflation. Some of the most popular alternatives include:
The ekpyrotic universe: This theory suggests that the universe began in a state of contraction, rather than expansion. The contraction would have eventually led to a singularity, at which point the universe would have bounced back into expansion.
The cyclic universe: This theory is similar to the ekpyrotic universe, but it suggests that the universe goes through a series of cycles of contraction and expansion.
The varying-speed-of-light universe: This theory suggests that the speed of light was not constant in the early universe. If this is true, it could explain how the universe could have expanded rapidly without violating the laws of physics.
The string gas universe: This theory suggests that the early universe was filled with a gas of strings. The strings would have interacted with each other, causing the universe to expand rapidly.
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Apr 2, 2023 • 53min
Superconductor Smackdown: Breakthrough or ‘Probable Fraud’? (#309)
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Here come maglev trains, fusion reactors, cheap MRI scanners in every clinic…. Or not?Since the discovery of superconductors in 1911 by Heike Kamerlingh Onnes, earning the 1913 Nobel Prize in Physics, they have been the subject of much fascination and inquiry. Some of the greatest minds in physics have grappled with how superconductivity works to drive electrical resistance to 0. The 1972 Nobel prize in Physics was awarded to John Bardeen, Leon Neil Cooper, and John Robert Schrieffer "for their BCS theory of superconductivity. Now the race is on to get the highest temperature superconductor possible; another Nobel Prize was awarded just for getting the temperature up to 35K or -396 Fahrenheit! So superconducting has remained impractical, until now... Maybe! The HUGE claim: zero resistance, at temperatures up to 65 degrees Fahrenheit. Is it a scientific breakthrough, or is it very probably fraud?
00:00:00 Intro
00:01:11 Eisenhower’s warning https://youtu.be/mHDgsh6WPyc?t=562
00:01:55 Jorge Hersch and High Tc Superconductors
00:04:32 Conflict between Hersch and Diaz
00:06:25 What is a superconductor?
00:20:45 Cooper Pairs and Quantum Effects
00:25:00 100 years of superconducting materials
00:28:13 The experiment and the diamond anvil!
00:33:31 The Unearthly Materials Controversy
00:40:00 Academic Freedom and Moderation
00:43:26 Conclusions and Takeaways
Sources
https://www.nature.com/articles/s41586-023-05742-0
https://www.nature.com/articles/s41586-022-05294-9
https://www.unearthlymaterials.com/
https://techcrunch.com/2023/03/17/unearthly-materials-superconductors-investors/?guccounter=1&guce_referrer=aHR0cHM6Ly93d3cuZ29vZ2xlLmNvbS8&guce_referrer_sig=AQAAALsG2YvRnsu4H0m6ds6fJexDuCNHetasRbCFcu_DbioYuWHi0WKx7idn5wM3Uz2Ko12Zc-4U6SuufQHLbq-QbdfCqzDwEhObBA4bw9BB_rVisKKZTufyfmbPBi_4Oe1kOnBGVIdFjlK9SAOc0yAGRPAPfN1LIdvZ5bdTutI9wP5b
https://undark.org/2023/03/27/a-potential-triumph-in-physics-dogged-by-accusation-and-doubt/
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Apr 2, 2023 • 19min
Eric Weinstein: The Crazy Structure of the Universe (#308)
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Mar 28, 2023 • 1h 5min
Avi Loeb: `Oumuamua is EXTRATERRESTRIAL (#307)
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Recently, Bergner and Seligman explained the behavior of the first interstellar object, ‘Oumuamua, as a rare form of a quite common object, a comet. They claim it "began as an icy planetesimal that was irradiated at low temperatures by cosmic rays during its interstellar journey, and experienced warming during its passage through the Solar System. This explanation is supported by a large body of experimental work."But Avi Loeb disagrees: “In a new paper published recently in Nature -- https://www.nature.com/articles/s41586-022-05687-w Acceleration of 1I/‘Oumuamua from radiolytically produced H2 in H2O ice -- Jennifer Bergner and Darryl Seligman suggest that the peculiar acceleration observed by the first known interstellar object `Oumuamua, can be explained if `Oumuamua was made of water ice which was partly dissociated into hydrogen by cosmic-rays along its interstellar journey. In the abstract of the paper, the authors admit that past models involving a pure hydrogen iceberg or a pure nitrogen iceberg do not work due to theoretical or observational inconsistencies. In fact, the hydrogen iceberg model was proposed in a previous 2020 paper by Darryl Seligman himself. A few months later, Avi wrote a paper with Thiem Hoang, showing that heating by interstellar starlight would destroy hydrogen icebergs too quickly and not allow them to reach the solar system from their likely formation sites of giant molecular clouds.https://www.nature.com/articles/s41586-022-05687-wRead Hoang and Loeb's response paper:https://lweb.cfa.harvard.edu/~loeb/Hoang_Loeb_23.pdf
Essay: https://avi-loeb.medium.com/oumuamua-was-not-a-hydrogen-water-iceberg-1dd2f7a6107f
https://arxiv.org/pdf/2208.00092.pdf
https://www.theguardian.com/world/2023/mar/24/harvard-physicist-pacific-expedition-first-interstellar-meteor
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Mar 27, 2023 • 57min
Can Scientists Be Spiritual? Alan Lightman | Into The Impossible Podcast (#306)
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Is the brain a computer? Where does the soul lie? Can quantum mechanics explain consciousness? Alan Lightman takes on these ancient questions and more in this fabulous new book chock-full of cutting-edge research and the latest discoveries in brain science.Watch Alan's first episode on the Into the Impossible Podcast https://youtu.be/MG2cPltzCdYLightman is currently a Professor of the Practice of the Humanities at the Massachusetts Institute of Technology. Alan has written several books on topics ranging from relativity and gravitation to personal development. The topic of this episode of the Into The Impossible Podcast is his new book, The Transcendent Brain: Spirituality in the Age of Science.
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Mar 24, 2023 • 1h 23min
Martin Bauer: The Revolutionary Stern-Gerlach Experiment (#305)
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Watch the video of this episode here: https://www.youtube.com/live/hiw3aJwc7TU?feature=share?sub_confirmation=1 The Stern-Gerlach experiment is one of the most important results in physics history. Shockingly, the paper had never been translated into english until today's guest, Prof. Martin Bauer set himself to the task. We'll discuss the experiment, as well as Martin's research. Bring your questions for this renowned science popularizer and scientist!Read the paper: The Stern-Gerlach Experiment, Translation of: "Der experimentelle Nachweis der Richtungsquantelung im Magnetfeld" by Martin Bauer https://arxiv.org/abs/2301.11343The following is a translation of the paper by Walther Gerlach and Otto Stern that reported the first evidence for the quantization of atoms in a magnetic field. The atoms have quantum states corresponding to a limited number of possible angles between the directions of the angular momenta of the atoms and the magnetic field, also called space quantization. The wording and layout have been chosen to be as close to the original as possible. For context we recommend the recent review.Martin Bauer is Assistant Professor (Research) - UKRI FLF in the Department of Physics . His Research interests include:
Dark Matter
Heavy Quark and Lepton Flavour Physics
Higgs Physics
Research groups
Elementary Particle Theory
Institute for Particle Physics Phenomenology
https://twitter.com/martinmbauer
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Mar 20, 2023 • 1h 13min
Studying Autism with BRAINS Grown In Space | Alysson Moutri on The INTO THE IMPOSSIBLE Podcast (#304)
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Where does consciousness come from? Can we cure autism? Can we grow a human BRAIN in Space? Dr. Alysson Muotri joins me to discuss all these fascinating questions and more.Brain organoids are lab-grown minibrains that mimic structural and functional features of full-size brains. They are created by culturing pluripotent stem cells in a three-dimensional rotational bioreactor, and they develop over a course of months. Brain organoids have emerged as novel model systems that can be used to investigate human brain development and disorders34, as well as evolutionary studies and neural network researchMuotri is a Professor at the Departments of Pediatrics and Cellular & Molecular Medicine at UC San Diego, an Associate Director of CARTA, The Center for Research and Training in Anthropology, and Director of the Stem Cell Program, and of the Archealization Center (ArchC) at UC San Diego.He moved to the Salk Institute as Pew Latin America Fellow in 2002 for postdoctoral training in the fields of neuroscience and stem cell biology. His research focuses on brain evolution and modeling neurological diseases using human-induced pluripotent stem cells and brain organoids. He has an additional focus on solving one of life's greatest mysteries: What is it that makes us uniquely human? Our unique social brains are one of the key distinguishing factors between humans and other primates. We are even very different from our closest relatives, the Neanderthals.His work has implications for the generation of human disease models by determining the molecular and cellular mechanisms driving neurological complex disorders, such as autism. It is also creating opportunities for identifying and testing novel therapeutic approaches. Understanding the evolutionary path and the tradeoffs of the modern human brain will likely illuminate the origins of human disease.Dr. Moutri has received several awards, including the prestigious NIH Director’s New Innovator Award, NARSAD, Emerald Foundation Young Investigator Award, Surugadai Award, Rock Star of Innovation, NIH EUREKA Award, and two Telly Awards for Excellence in Science Communication.Links:
Department of Cellular and Molecular Medicine: cmm.ucsd.edu
Center for Academic Research and Training in Anthropogeny: carta.anthropogeny.org/users/alysson-muotri
the Archealization Center: Archc.ucsd.edu
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