Robinson's Podcast

Tim Maudlin is Professor of Philosophy at NYU and Founder and Director of the John Bell Institute for the Foundations of Physics. This is Tim’s seventh appearance on the show. He last appeared on episode 210 with David Albert for a discussion of the measurement problem in quantum mechanics. In this episode, Tim and Robinson talk about Albert Einstein’s theory of special relativity, explaining it from the ground up and elucidating some common misconceptions. More particularly, they get into Einstein’s magnificent mind, how special relativity displaced the theory of the ether, absolute and relative space, the speed and nature of light, the possibility of time travel, relativistic quantum mechanics, and more. If you’re interested in the foundations of physics, then please check out the JBI, which is devoted to providing a home for research and education in this important area. Any donations are immensely helpful at this early stage in the institute’s life. Tim’s Website: www.tim-maudlin.site The John Bell Institute: https://www.johnbellinstitute.org OUTLINE 00:00 Introduction 01:59 The Amazing Fertility of Einstein's Mind 08:50 The Mysterious Ether and Why It Isn't All Around Us 25:01 Einstein Versus Relative and Absolute Space 29:58 The Single Most Important Experiment in Physics 45:23 Special Relativity and Absolute Space 53:56 The Conceptual Clarity of Genius Physicists 1:01:05 A Thought Experiment to Explain Einstein's Theory of Special Relativity 1:13:48 Is the Speed of Light an Illusion? 1:23:33 Richard Feynman's Big Mistake About Einstein 1:34:23 On Einstein and the Possibility of Time Travel 1:42:53 Is Special Relativity Compatible with Quantum Mechanics? 1:49:55 Relativistic Bohmian Mechanics 1:57:00 Does Anything Move Faster than Light? 1:59:03 The John Bell Institute for the Foundations of Physics Robinson’s Website: http://robinsonerhardt.com Robinson Erhardt researches symbolic logic and the foundations of mathematics at Stanford University. --- Support this podcast: https://podcasters.spotify.com/pod/show/robinson-erhardt/support

David Albert is the Frederick E. Woodbridge Professor of Philosophy at Columbia University, director of the Philosophical Foundations of Physics program at Columbia, and a faculty member of the John Bell Institute for the Foundations of Physics. This is David’s ninth appearance on Robinson’s Podcast. He last appeared on episode 221 to discuss the measurement problem of quantum mechanics. In this episode, David gives a pedagogical and introductory overview of the problem of time’s arrow, which is one of the most enduring of all physical and philosophical puzzles. David’s most recent book is A Guess at the Riddle (2023). If you’re interested in the foundations of physics, then please check out the JBI, which is devoted to providing a home for research and education in this important area. Any donations are immensely helpful at this early stage in the institute’s life. A Guess at the Riddle: https://a.co/d/6qcsidl The John Bell Institute: https://www.johnbellinstitute.org OUTLINE 00:58 The Tension Between Past and Future in Physics 8:56 The Arrow of Time in Life and Physics 12:26 The Three Arrows of Time 18:12 Entropy and the Direction of Time 29:12 Thermodynamics and the Problem of the Past 38:26 Why Do We Remember the Past But Not the Future? 48:46 Two Ways to Understand the Past 1:04:21 Why Can We Affect the Future But Not the Past 1:17:51 Why Can Agents Control the Future but not the Past? 1:26:57 Can the Laws of Quantum Physics Be Run Backward? 1:33:11 The Connection Between the Foundations of Quantum Physics and Statistical Mechanics 1:41:53 Cosmology and the Past Hypothesis 1:44:25 Why are Left and Right Different from Past and Future? 1:49:28 The Difference Between Space and Time 1:57:14 Is Time a Fundamental Part of Reality? 1:59:14 Future Work Robinson’s Website: http://robinsonerhardt.com Robinson Erhardt researches symbolic logic and the foundations of mathematics at Stanford University --- Support this podcast: https://podcasters.spotify.com/pod/show/robinson-erhardt/support

Janna Levin is the Claire Tow Professor of Physics and Astronomy at Barnard College of Columbia University. She is also the Chair and Founding Director of the Science Studios at Pioneer Works. In this episode, Robinson and Janna talk all about black holes and how to survive them. More particularly, they discuss how black holes were discovered both theoretically and empirically, common misconceptions about black holes, their role in theories of quantum gravity, and how they do and will contribute to both the life and death of the universe. If you’d like to learn more about black holes, read Janna’s latest book, Black Hole Survival Guide (Anchor, 2022). Janna’s Website: https://jannalevin.com Black Hole Survival Guide: https://a.co/d/biGGqZc Pioneer Works: https://pioneerworks.org OUTLINE 00:00 Introduction 06:10 The Original Theory of Black Holes 14:45 Is There Gravity in Space? 20:40 Just What IS a Black Hole? 38:47 Why Physicists Resisted the Possibility of Black Holes 50:44 What’s at the Center of a Black Hole? 55:34 What Happens When Something Falls into a Black Hole? 1:03:23 Is Leonard Susskind a Genius Physicist? 1:12:07 What Is the Fine-Tuning Problem? 1:17:52 How Close Can You Get to a Black Hole and Still Survive? 1:25:10 Why Are Black Holes Perfect Objects? 1:32:12 How Do Black Holes Form? 1:41:31 What Will Happen to the Sun When It Dies? 1:50:38 Black Holes, Dark Energy, and the Fate of the Universe 1:54:45 The Heat Death of the Universe 1:59:18 Pioneer Works Robinson’s Website: http://robinsonerhardt.com Robinson Erhardt researches symbolic logic and the foundations of mathematics at Stanford University. --- Support this podcast: https://podcasters.spotify.com/pod/show/robinson-erhardt/support

This episode came on the heels of a traumatic, eight-interview sprint in NYC. As you’ll see, this one was particularly chaotic, but the stars aligned to make it happen. Camera switches, bathroom breaks, health concerns, equipment malfunctions, and even a robbery didn’t prevent the conversation from coming together. With this in mind, I hope you’ll forgive how crazy and inconsistent the video is; the fact that it even got put together is courtesy of my friend and editor Yu Guo (a philosopher who got his PhD from NYU with past guest Paul Boghossian). Given that there’s some new intro music, and you’re already getting an abundance of distracting production nuggets, I decided to show the soup being made. My thanks go to Richard, who met with me twice in three days (not to mention his wife, who allowed it), and Michael, who put up with me for over four hours. - Robinson P.S. Toward the end of the episode Michael eats a jerky stick from Maui Nui Venison, which is a company operating out of Hawaii that manages the invasive deer population of Maui that is decimating the landscape. Instead of culling the animals and disposing of their bodies, the meat is butchered and sold. It is the only meat I eat, full-stop, and the ethical reasons are sufficient for this, but it is also the best meat that I have ever had. I reached out to Maui Nui and told them that I support what they are doing and would like to be of any help that I can. They gave me this coupon code—ROBINSON—which you can use for 15% off. I am not being paid for this in any way. I believe in what they are doing and I want this model to succeed. People are going to be eating meat for the foreseeable future and I would be happier if it was not factory-farmed meat. So please check Maui Nui out and give them a try! Richard Wolff is Professor Emeritus of Economics at the University of Massachusetts Amherst and a visiting professor at The New School, where he works on economics in the Marxist tradition. Michael Hudson is Distinguished Research Professor of Economics at the University of Missouri, Kansas City and President of the Institute for the Study of Long-Term Economic Trends. He researches domestic and international finance, the history of economics, and the role of debt in shaping class stratification, among many other topics. OUTLINE 00:00 Introduction 00:51 Michael and Rick's Histories with Marx 16:50 A Marxless Education 29:42 Marxism and the West 35:18 Marx and the Emergence of Capitalism 43:59 Socialism Vs State Capitalism 49:21 The Culmination of Economics in Marx 57:16 The Crucial Features of Marxism 1:12:15 Marx, China, and the BRICS 1:25:57 The Laws of Motion of Finance Capitalism 1:28:58 Why Won't Mainstream Media Interview Michael Hudson and Richard Wolff? 1:42:16 Why is the American Empire Crumbling? 1:54:51 Is the Dollar Destroying the United States? 2:01:38 Marx as the Culmination of Classical Economics 2:10:19 Will Trump's China Tariff Policy Spell Disaster for America? 2:22:43 Is Trump's Policy on Russia Idiotic? 2:27:23 Does It Matter for America Who Wins the Election? 2:37:13 Michael's Rhetorical Abilities 2:43:54 How Can We Use Economics to Forecast the Future? 2:54:48 Does Paul Krugman Know Anything About Economics? 2:57:57 How Michael Got His PhD 3:04:59 What's Wrong With the Nobel Prize in Economics? 3:10:04 The Long and Short of Marx's Kapital 3:17:20 Capitalism and Labor 3:31:51 The Biggest Myth About Karl Marx --- Support this podcast: https://podcasters.spotify.com/pod/show/robinson-erhardt/support