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

Sean Carroll

Quantum Mechanics

Artificial Intelligence

Consciousness

Democracy

Climate Change

Cosmology

Philosophy

Complex Systems

Black Holes

Neuroscience

Longevity

Dark Matter

Free Will

Quantum Field Theory

Entropy

Cancer

Aging

Emergence

Time

Exoplanets

Ever wanted to know how music affects your brain, what quantum mechanics really is, or how black holes work? Do you wonder why you get emotional each time you see a certain movie, or how on earth video games are designed? Then you've come to the right place. Each week, Sean Carroll will host conversations with some of the most interesting thinkers in the world. From neuroscientists and engineers t... more

9.8k ratings

Publishes	Weekly	Episodes	437	Founded	8 years ago
Number of Listeners		Categories	PhysicsScience

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Latest Episodes

362 | Luis Bettencourt on the Universal Properties of Self-Organizing Cities

People who live in large cities produce more patents per person than those who live in small towns. They also walk faster down the street, and use less infrastructure per person. Indeed, the relationships between these quantities and city population ... more

Yesterday • 1 hr 20 min

361 | Bonnie Bassler on How Bacteria Talk and Work Together

One of the characteristics of life is that living organisms gather information and put it to use. Even one of the simplest lifeforms, bacteria, are able to sense features of their surroundings and alter their behavior accordingly. Most impressively, ... more

20 Jul 2026 • 1 hr 15 min

Mindscape Ask Me Anything, Sean Carroll | July 2026

Welcome to the July 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 ... more

13 Jul 2026 • 4 hrs 3 min • Most popular

360 | Marc Berman on the Science of Touching Grass

Modern life has, in many ways, removed us from the environments in which our ancestors lived and adapted. Not only do we spend time looking at screens, but we spend time indoors, or outdoors but in urban spaces. How does this affect how we think and ... more

6 Jul 2026 • 1 hr 29 min

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Recent Guests

Bonnie Bassler

World-leading expert on quorum sensing; guest discussed her work and discoveries

Princeton University (implied by context as a leading researcher in quorum sensing)

Episode: 361 | Bonnie Bassler on How Bacteria Talk and Work Together

Marc Berman

Professor and author, expert in Environmental Neuroscience

University of Chicago

Episode: 360 | Marc Berman on the Science of Touching Grass

Jeff Coller

Professor of RNA Biology and Therapeutics, Johns Hopkins University

Johns Hopkins University

Episode: 357 | Jeff Coller on mRNA, Vaccines, and Bespoke Therapeutics

Andrea Wulf

Historian of science and author

Episode: 356 | Andrea Wulf on Enlightenment, Nature, Romanticism, and Modernity

Christian List

Philosopher; director at Munich Center for Mathematical Philosophy

Munich Center for Mathematical Philosophy (MCMP)

Episode: 354 | Christian List on Free Will and Levels of Reality

Alvin Roth

Nobel Prize-winning economist, Stanford University

Stanford University

Episode: 353 | Alvin Roth on the Economics of Morally Contested Markets

Bing Brunton

Neuroscientist and biologist at the University of Washington

University of Washington

Episode: 352 | Bing Brunton on Connecting the Connectome to the Body

J. Eric Oliver

Political scientist at the University of Chicago, author of How to Know Yourself

University of Chicago

Episode: 350 | J. Eric Oliver on the Self and How to Know It

Daniel Harlow

Physicist at MIT, expert on quantum gravity

Massachusetts Institute of Technology

Episode: 349 | Daniel Harlow on What Quantum Gravity Teaches Us About Quantum Mechanics

Host

Sean Carroll

Host of Mindscape; engages guests across physics, philosophy, and culture with thoughtful, rigorous questioning.

Reviews

4.8 out of 5 stars from 9.8k ratings

Wrong
Ideas, theories and thoughts should not end with the word”right”making the listener agree with you rather than letting one decide if something is right or wrong or needs more time to think. Stop ending your sentences with the word -right. You are not always right.
Apple Podcasts
3
johnfivethousand
United Statesa month ago
Ad nauseum
Great content and a great show, but the new ad inserts kill everything good about it. Nothing like trying to unwind and listen to a nice talk and then have someone randomly start screaming into your ears about airfare or whatever. The ad volume alone is like 40x the volume of the podcast. How dare you, Sean…
Apple Podcasts
1
largestoof
Denmarka month ago
A true gem
Exceptional podcast. SC is providing a much needed service to modern culture by engaging a diverse group of intellectuals and broadcasting their ideas.
Apple Podcasts
5
Wittgeinstein86
United Kingdoma month ago
Adscape
The dynamic ads are making it virtually unbearable for me to listen to episodes. I no longer care for the AMAs; the solo episodes are not properly structured; and the main episodes are almost all book promotion, the host having almost never actually done his homework beforehand. Carroll doesn’t need my money and the quality doesn’t make it worth it to pay for the ad free version.
Apple Podcasts
2
NicolasAJD
United States2 months ago
Thank you
Thank you for taking the time to do this podcast! I found you thru Brian Greene’s World Science Fest and your guest appearances in Startalk! I am so intrigued and awed by the topics you explore ! Thank you again! 🙏💎🤗
Apple Podcasts
5
BrendaLMFT
United States2 months ago

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Listeners praise accessible deep dives into complex topics and engaging guest lineups.

Ads and sponsor reads are occasionally criticized for loudness or intrusion.

Some reviews note political discussions at times dominate or color the tone, which may polarize portions of the audience.

Chart Rankings

How this podcast ranks in the Apple Podcasts, Spotify and YouTube charts.

Spotify	#23	United States/Science
Apple Podcasts	#3	United States/Science/Physics
Apple Podcasts	#25	United States/Science
Spotify	#25	United Kingdom/Science
Apple Podcasts	#2	United Kingdom/Science/Physics
Apple Podcasts	#2	Canada/Science/Physics

Talking Points

Recent interactions between the hosts and their guests.

Mindscape Ask Me Anything, Sean Carroll | July 2026

Q: What is the role of mixed states in quantum mechanics, and could they affect how we think about the universe as a whole?

Sean explains mixed states as a broader, more flexible description than pure states when predicting experimental outcomes, especially in quantum systems with entanglement. He notes that entanglement makes a subsystem's state described by a density operator rather than a pure state, and discusses the idea that density operators might reflect a more fundamental aspect of quantum reality than classical mixtures. This ties into the broader conversation about whether the universe's state should be treated with density operators and how that affects notions like Boltzmann fluctuations and time's emergence. Timestamp around 3077909.

Mindscape Ask Me Anything, Sean Carroll | July 2026

Q: Could you give an overview of the current state of debate on Boltzmann brains?

Sean outlines that Boltzmann brains became a popular hypothesis in the late 1990s as a possible outcome in universes with a positive cosmological constant, but the problem is not the prevalence of Boltzmann brains per se; it is the epistemic and probabilistic incoherence of trusting a current state that could have arisen from random fluctuations. He emphasizes issues like the Boltzmann brain blindness and the difference between Boltzmann brains and Boltzmann you, arguing that the latter poses deeper problems for underpinning theories in cosmology. He also discusses possible resolutions, such as dynamical dark energy or the Swampland ideas, and the possibility that Hilbert space is infinite dimensional, which could suppress recurrence and fluctuations. Timestamp roughly 1|175329.

361 | Bonnie Bassler on How Bacteria Talk and Work Together

Q: What got you interested in bacteria of all things?

Bonnie explains that an early lab experience shifted her toward bacteria as a model system; despite initial interest in cancer, she was drawn to bacteria for their rapid experimentation and the way they reveal fundamental questions about life, growth, and collective behavior. This set the stage for a lifelong focus on how simple cells can coordinate in sophisticated ways.

353 | Alvin Roth on the Economics of Morally Contested Markets

Q: Can you explain kidney exchange and how it demonstrates market design in medicine?

Kidney exchange uses matching algorithms and non-directed donors to connect donors and patients in chains, increasing transplants and saving lives by expanding the pool of compatible donors without paying donors directly.

353 | Alvin Roth on the Economics of Morally Contested Markets

Q: Why are some transactions considered controversial markets, and how do laws split them across jurisdictions?

Controversial markets are those where moral or religious objections intersect with economic incentives, and legality varies by place; what is illegal in one jurisdiction may be legal in another, prompting cross-border and policy questions about design and reform.

Audience Metrics

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The show combines deep science, philosophy, and culture through long-form conversations with prominent thinkers. Episodes span quantum physics, cognitive science, economics, biology, law, and the history of science, often exploring how big ideas intersect with everyday life, society, and technology. Listeners likely appreciate rigorous inquiry tempered by accessible explanations, with occasional debates about politics and public policy that reflect the host's broad curiosity. A standout hook is the blending of technical depth with clear storytelling, drawing in both specialists and general audiences who enjoy thinking critically about science and its broader implications.

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Which podcasts are similar to this podcast?

These podcasts share a similar audience with this podcast:

1. The Origins Podcast with Lawrence Krauss
2. Theories of Everything with Curt Jaimungal
3. The Quanta Podcast
4. Into the Impossible With Brian Keating
5. The Michael Shermer Show

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this podcast launched 8 years ago and published 437 episodes to date. You can find more information about this podcast including rankings, audience demographics and engagement in our podcast database.

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What guests have appeared on this podcast?

Recent guests on this podcast include:

1. Bonnie Bassler
2. Marc Berman
3. Jeff Coller
4. Andrea Wulf
5. Christian List
6. Alvin Roth
7. Bing Brunton
8. J. Eric Oliver

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