Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas

All ideas have a history, no matter how inevitable and well-entrenched they may seem to us today. The later Enlightenment was a heady time when people were exploring new conceptions of nature, humanity, and the self. Andrea Wulf is a writer of narrative histories, examining the origins of ideas through the lives of the people who explored them. In this episode we discuss three of her books: The Invention of Nature, about Alexander von Humboldt and environmentalism; Magnificent Rebels, about the Jena circle of Romantics including Goethe, Schiller, Schlegel, and others; and most recently The Traveller, about George Forster, an early naturalist, ethnographer, and champion of human equality.





Blog post with transcript: https://www.preposterousuniverse.com/podcast/2026/06/08/356-andrea-wulf-on-enlightenment-nature-romanticism-and-modernity/







 


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Andrea Wulf was born in India, raised in Germany, and studied design history at the Royal College of Art, London. She is the author of seven books. She is a Miller Scholar at the Santa Fe Institute and a Fellow of the Royal Society of Literature. The Invention of Nature won multiple prizes, including the Royal Society science book prize and the LA Times book prize.
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Welcome to the June 2026 Ask Me Anything episode of Mindscape! These monthly excursions are funded by Patreon supporters (who are also the ones asking the questions). We take questions asked by Patreons, whittle them down to a more manageable number -- based primarily on whether I have anything interesting to say about them, not whether the questions themselves are good -- and sometimes group them together if they are about a similar topic. Enjoy!
Blog post with AMA questions and transcript: https://www.preposterousuniverse.com/podcast/2026/06/01/ama-june-2026/
New paper I talk about in the beginning of the episode:
S.M. Carroll, N. Diachenko, and S. Dulani, "Toward a Phenomenologically Acceptable Quantum Cyclic Universe."

One of the major obstacles to understanding quantum mechanics is the difficulty we have in simply accepting what the theory itself is telling us. The problem is that we know what the everyday world looks like -- stuff, arranged in space, evolving through time. So we can't resist the temptation to impose that picture on the quantum description, even if it's not actually there. In this solo episode I talk about what it means to take quantum mechanics at face value, and the difficult work involved in understanding how the everyday world of our experience fits into the picture.
Blog post with transcript: https://www.preposterousuniverse.com/podcast/2026/05/25/355-solo-looking-quantum-mechanics-in-the-eyeball/






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Here is the survey on physicists' opinions about unsettled big-picture questions:
Afshordi, Halper, Rini, and Schirber, "Big Mysteries Survey: Physicists' Views on Cosmology, Black Holes, Quantum Mechanics, and Quantum Gravity."
And here is a short technical overview on the ideas described in this episode:
Carroll, "Reality as a Vector in Hilbert Space."
If you want further papers, look at the papers cited in this one.

Did I have any freedom in choosing this particular podcast guest? At the level of particles, fields, and the fundamental laws of physics; no. At the level of human agents navigating the world, yes. Today's guest, Christian List, is a philosopher and political scientist who has arguably done the most to articulate the "compatibilist" perspective on free will, according to which the freedom of rational agents is entirely compatible with underlying mechanistic laws. The reconciliation depends on thinking carefully about emergence and the relationship between levels of reality.
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Blog post with transcript: https://www.preposterousuniverse.com/podcast/2026/05/18/354-christian-list-on-free-will-and-levels-of-reality/






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Christian List received his D.Phil in Politics from Oxford University. He is currently Professor of Philosophy and Decision Theory and Co-Director of the Munich Center for Mathematical Philosophy at LMU Munich. He is a Fellow of the British Academy and a member of Academia Europaea the Bavarian Academy of Sciences and Humanities. Among his honors are the Joseph Gittler Award from the American Philosophical Association. He is the author of Why Free Will Is Real and (with Philip Pettit) Group Agency.
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Economic markets are efficient ways of deciding fair prices, at least in ideal circumstances of perfect competition, information, and choice. But there is more to life than fair prices. Two people might decide on a fair price to carry out a contract killing, but society generally frowns on the idea. Many examples of morally contestable markets feature less consensus than that one: sex work, drugs, selling organs, adopting children. In his new book Moral Economics, economist Alvin Roth investigates how we should reason through such tricky cases, and what we can learn from them.
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Blog post with transcript: https://www.preposterousuniverse.com/podcast/2026/05/11/353-alvin-roth-on-the-economics-of-morally-contested-markets/






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Alvin Roth received his Ph.D. in operations research from Stanford University. He is currently the Craig and Susan McCaw Professor of Economics at Stanford University and the Gund Professor of Economics and Business Administration Emeritus at Harvard. He was President of the American Economic Association in 2017. He and Lloyd Shapley shared the 2012 Nobel Prize in Economics for "the theory of stable allocations and the practice of market design."
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