303 | AMA | February 2025

8624.829 - 8646.783 Sean Carroll

So you might hope to find a renormalizable theory that reduces to gravity at low energies. No one has been able to do that. They tried. Okay. Well, actually, sorry, that's not true. String theory is exactly an example of this. In fact, maybe it's worth saying that, you know, to a lot of people who wonder why string theory is so popular, this is really the reason. At the end of the day,