Sean Carroll
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seanmcarroll.bsky.social
Sean Carroll
@seanmcarroll.bsky.social
41K followers 580 following 8.1K posts
Physics, philosophy, complexity. @jhuartssciences.bsky.social & @sfiscience.bsky.social. Host, #MindscapePodcast. Married to @jenlucpiquant.bsky.social.
Latest books: The Biggest Ideas in the Universe.
https://preposterousuniverse.com/
Posts Replies Media Videos
seanmcarroll.bsky.social
Oh we have! Jennifer's cassoulet is famous.
Cassoulet mid-process, in a big cassole.
November 10, 2025 at 1:31 PM
seanmcarroll.bsky.social
Mindscape 335 | Andrew Jaffe on Models, Probability, and the Universe. #MindscapePodcast

www.preposterousuniverse.com/podcast/2025...
Title card for Mindscape podcast episode with Andrew Jaffe.
November 10, 2025 at 12:15 PM
seanmcarroll.bsky.social
I would be jealous except @jenlucpiquant.bsky.social made coq au vin, so I have no complaints.
Coq au vin, with brown-butter gnocchi on the side
November 10, 2025 at 2:44 AM
seanmcarroll.bsky.social
Gorgeous day on JHU campus. Not sure why the pumpkins don’t look happier about it.
Row of gradually decaying jack o lanterns on a beautiful autumn day in Baltimore
November 3, 2025 at 4:51 PM
seanmcarroll.bsky.social
Mindscape 334 | Daniel Whiteson @danielwhiteson.bsky.social on the Physics of and by Aliens. #MindscapePodcast

www.preposterousuniverse.com/podcast/2025...
Title card for Mindscape Podcast episode with Daniel Whiteson.
November 3, 2025 at 1:00 PM
seanmcarroll.bsky.social
Ariel sends good vibes
November 2, 2025 at 3:57 PM
seanmcarroll.bsky.social
Caliban wishes a Happy Halloween to all!
Handsome tuxedo cat posing in front of a pumpkin toy
October 31, 2025 at 9:05 PM
seanmcarroll.bsky.social
But the real fun thing in my quantum class today is that all the students came in costume ... as me. They are the best.
Students in Quantum Mechanics I at Johns Hopkins, all dressed in costume as their professor.
October 31, 2025 at 4:49 PM
seanmcarroll.bsky.social
Today in #QM1 we thought about the simple harmonic oscillator in terms of raising/lowering operators. Wrote them down, related them to x and p, figured out the Hamiltonian in terms of them, derived commutation relations.
"It ain't much, but it's honest work" meme
October 29, 2025 at 2:42 PM
seanmcarroll.bsky.social
Mindscape 333 | Gordon Pennycook @gordpennycook.bsky.social on Unthinkingness, Conspiracies, and What to Do About Them. #MindscapePodcast

www.preposterousuniverse.com/podcast/2025...
Title card for Mindscape episode with Gordon Pennycook.
October 27, 2025 at 11:51 AM
seanmcarroll.bsky.social
Hahahahaha FTC
Win probability graph showing the Celtics far ahead in 3rd/4th quarters, before incredible Sixers surge at the very end
October 23, 2025 at 2:18 AM
seanmcarroll.bsky.social
Tyrese Maxey and VJ Edgecombe giving me life! Basketball is back. @sixersnba.bsky.social
I Love This Game graphic
October 23, 2025 at 2:11 AM
seanmcarroll.bsky.social
Joel Embiid being adorable
October 22, 2025 at 12:19 AM
seanmcarroll.bsky.social
Mindscape 332 | Dmitri Tymoczko on the Mathematics Behind Music. Here's where you understand where scales come from once and for all. #MindscapePodcast

www.preposterousuniverse.com/podcast/2025...
Title card for Mindscape podcast episode with Dmitri Tymoczko.
October 20, 2025 at 11:47 AM
seanmcarroll.bsky.social
Joel Embiid bobblehead
October 14, 2025 at 10:10 PM
seanmcarroll.bsky.social
Mindscape Ask Me Anything | October 2025. Hopefully this one answers once and for all why the universe isn't a black hole if it was so densely packed at early times. #MindscapePodcast

www.preposterousuniverse.com/podcast/2025...
Title card for Mindscape AMA episode.
October 13, 2025 at 11:49 AM
seanmcarroll.bsky.social
This adds the MacArthur to the Oscar and Nobel as prestigious awards that people have won after appearing on my podcast. #MindscapePodcast gets results!

www.preposterousuniverse.com/podcast/2024...
Title card for Mindscape episode with Hahrie Han.
October 8, 2025 at 5:56 PM
seanmcarroll.bsky.social
The notion being stolen was "any allusion to conscious LLMs is an illusion; it’s a deep fake on steroids."

The podcast in question:

www.preposterousuniverse.com/podcast/2025...
Title card for Mindscape podcast episode with Christof Koch on Consciousness and Integrated Information.
October 7, 2025 at 1:37 PM
seanmcarroll.bsky.social
Mindscape 331 | Solo: Fine-Tuning, God, and the Multiverse. In which I shamelessly steal material from the #PhilosophyOfCosmology course I am teaching to talk about some big questions. #MindscapePodcast

www.preposterousuniverse.com/podcast/2025...
Title card for Mindscape Podcast episode on Fine-Tuning, God, and the Multiverse.
October 6, 2025 at 11:42 AM
seanmcarroll.bsky.social
Mindscape 330 | Petter Törnberg @pettertornberg.com on the Dynamics of (Mis)Information. #MindscapePodcast

www.preposterousuniverse.com/podcast/2025...
Title card for Mindscape podcast episode with Petter Törnberg
September 29, 2025 at 12:01 PM
seanmcarroll.bsky.social
Mindscape 329 | Steven Pinker on Rationality and Common Knowledge. #MindscapePodcast

iykyk

www.preposterousuniverse.com/podcast/2025...
Title card for Mindscape episode with Steven Pinker.
September 22, 2025 at 11:11 AM
seanmcarroll.bsky.social
I have purchased a mid-sized cat tower so that Ariel can sit next to me at my desk and get scritches while I am writing. Everyone wins here.
Ariel, an extremely adorable kitty, turning on the charm.
September 22, 2025 at 1:37 AM
seanmcarroll.bsky.social
Mindscape 328 | Mary Roach @maryroach.bsky.social on Replacing Parts of Our Bodies. Noses, teeth, limbs, bones, hearts & more. #MindscapePodcast

www.preposterousuniverse.com/podcast/2025...
Title card for Mindscape podcast interview with Mary Roach.
September 15, 2025 at 11:51 AM
seanmcarroll.bsky.social
Mindscape Ask Me Anything | September 2025. Entropic gravity, democratic equilibrium, discrete space, exorcising Laplace's Demon, and so much more. #MindscapePodcast

www.preposterousuniverse.com/podcast/2025...
Title card for Mindscape AMA, Sept 2025.
September 8, 2025 at 11:39 AM
seanmcarroll.bsky.social
Ariel thinks you’re great if and only if she is getting scritches.
Very happy kitty getting her scritches
September 5, 2025 at 1:06 AM