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Sean Carroll

๐Ÿ‘ค Speaker
12280 total appearances

Appearances Over Time

Podcast Appearances

StarTalk Radio
Cosmic Queries โ€“ The Complex Universe with Sean Carroll

All right.

StarTalk Radio
Cosmic Queries โ€“ The Complex Universe with Sean Carroll

Yeah.

StarTalk Radio
Cosmic Queries โ€“ The Complex Universe with Sean Carroll

Just in case there's anyone who really wants it out there, I mean, Neil's given a very good reason to think that entropy should go down.

StarTalk Radio
Cosmic Queries โ€“ The Complex Universe with Sean Carroll

And the secret to, you know, for a little bit more technicality, because this is the end of the podcast, we should care about phase space, not space.

StarTalk Radio
Cosmic Queries โ€“ The Complex Universe with Sean Carroll

That is to say, we should think about both the positions of particles and also their velocities.

StarTalk Radio
Cosmic Queries โ€“ The Complex Universe with Sean Carroll

So the positions of particles are indeed going to get squeezed together if the universe collapses.

StarTalk Radio
Cosmic Queries โ€“ The Complex Universe with Sean Carroll

But the velocities are going to spread all out and do crazy things and increase the entropy of the whole configuration.

StarTalk Radio
Cosmic Queries โ€“ The Complex Universe with Sean Carroll

And in fact, it's going to look wildly inhomogeneous with black holes and empty regions.

StarTalk Radio
Cosmic Queries โ€“ The Complex Universe with Sean Carroll

And it's going to look nothing like our early universe looked.

StarTalk Radio
Cosmic Queries โ€“ The Complex Universe with Sean Carroll

Man, you're good.

StarTalk Radio
Cosmic Queries โ€“ The Complex Universe with Sean Carroll

I'm old.

StarTalk Radio
Cosmic Queries โ€“ The Complex Universe with Sean Carroll

I've done this before.

StarTalk Radio
Cosmic Queries โ€“ The Complex Universe with Sean Carroll

Not my first rodeo.

StarTalk Radio
Cosmic Queries โ€“ The Complex Universe with Sean Carroll

What can I tell you?

StarTalk Radio
Cosmic Queries โ€“ The Complex Universe with Sean Carroll

That was 2024.

StarTalk Radio
Cosmic Queries โ€“ The Complex Universe with Sean Carroll

And the one I'm supposed to be finishing up right now is called Complexity and Emergence 2026.

StarTalk Radio
Cosmic Queries โ€“ The Complex Universe with Sean Carroll

Tolkien it should work well for me too so I'm waiting for the adaptation and then you escape to middle earth and all as well right we find you online with the preposterous universe that's right and a lot of my work these days you know talking out there is in the podcast format with the mindscape podcast yeah

StarTalk Radio
Cosmic Queries โ€“ The Complex Universe with Sean Carroll

Mindscape.

StarTalk Radio
Cosmic Queries โ€“ The Complex Universe with Sean Carroll

Wow.

StarTalk Radio
Cosmic Queries โ€“ The Complex Universe with Sean Carroll

Absolutely.