meta_pixel
Tapesearch Logo
Log in
Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas

271 | Claudia de Rham on Modifying General Relativity

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

Sean Carroll | Wondery

Society & Culture, Physics, Philosophy, Science, Ideas, Society

4.84.4K Ratings

🗓️ 1 April 2024

⏱️ 82 minutes

🧾️ Download transcript

Summary

Einstein's theory of general relativity has been our best understanding of gravity for over a century, withstanding a variety of experimental challenges of ever-increasing precision. But we have to be open to the possibility that general relativity -- even at the classical level, aside from any questions of quantum gravity -- isn't the right theory of gravity. Such speculation is motivated by cosmology, where we have a good model of the universe but one with a number of loose ends. Claudia de Rham has been a leader in exploring how gravity could be modified in cosmologically interesting ways, and we discuss the current state of the art as well as future prospects.

Blog post with transcript: https://www.preposterousuniverse.com/podcast/2024/04/01/271-claudia-de-rham-on-modifying-general-relativity/

Support Mindscape on Patreon.

Claudia de Rham received her Ph.D. in physics from the University of Cambridge. She is currently a professor of physics and deputy department head at Imperial College, London. She is a Simons Foundation Investigator, winner of the Blavatnik Award, and a member of the American Academy of Arts and Sciences. Her new book is The Beauty of Falling: A Life in Pursuit of Gravity.


See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

Transcript

Click on a timestamp to play from that location

0:00.0

What do I do? What do I say? What do I say? In the Macmillan online community, we know what it's like to have cancer, because we have it too.

0:11.0

So, whatever you're thinking,

0:14.6

whatever you're feeling,

0:16.3

whatever you need to ask about cancer,

0:19.1

whatever the time of day or night,

0:22.2

we'll do whatever it takes to help you. To join us, search Macmillan

0:28.3

online community.

0:30.3

Hello everyone and welcome to the Mindscape podcast. I'm your host Sean Carroll.

0:34.0

There's a talk that I sometimes give. I've been giving for the last year and a half.

0:38.0

I'm sure you can find versions of it online.

0:40.0

It's related to volume one, the biggest ideas in the universe where I go through classical mechanics,

0:46.7

space time, all the way up to general relativity, Einstein's theory of gravity.

0:51.1

So in the talk, I have the high aspiration of in one hour explaining to you Einstein's equation

0:58.9

in all of its specific real glory.

1:01.6

The real equation, R-mu-nu minus 1-halfN-New-N-Nu, not just E-C-Mee-square. That's easy enough. Everyone can understand that.

1:10.0

And one of the themes of this talk that I give is the equations are smarter than we are.

1:17.5

This is why I think it's worth the effort in a book like the biggest idea series of talking about the equations.

1:25.0

Not that it's the only way to talk about physics etc.

1:28.0

Just because I have some equations in my recent book doesn't mean that I'm suddenly

1:32.0

looking down upon people who don't have equations in their books.

1:35.0

I think that all different levels, all different approaches are interesting and important, but one of those interesting ones is the equation-based one.

1:42.0

And the reason why is because as I said

...

Please login to see the full transcript.

Disclaimer: The podcast and artwork embedded on this page are from Sean Carroll | Wondery, and are the property of its owner and not affiliated with or endorsed by Tapesearch.

Generated transcripts are the property of Sean Carroll | Wondery and are distributed freely under the Fair Use doctrine. Transcripts generated by Tapesearch are not guaranteed to be accurate.

Copyright © Tapesearch 2025.