John Carlos Baez thinks Sabine has a point.
https://mathstodon.xyz/@johncarlosbaez/113285631281744111
>Despite the silly clickbait title of this video, Sabine says a lot of interesting stuff in it: her criticism of claimed deviations from Lorentz invariance in loop quantum gravity is about as good as you'll get from anyone who hasn't actually worked on loop quantum gravity. I worked on it for about 10 years, and the situation is even a bit worse than she makes it sound.
30 years ago I spoke to a fairly well known and regarded physicist who said something rather interesting along the same lines. Quoting as accurately as I can "physics looks sexy from the outside due to some celebrities but inside it's mostly worse than anyone wants to admit.". He also suggested I go and study mathematics instead because at least there will likely be some applications for it. I did and I am glad I did.
> John Carlos Baez
For those like me who didn't know, https://en.wikipedia.org/wiki/John_C._Baez
> John Carlos Baez (/ˈbaɪ.ɛz/;[2] born June 12, 1961) is an American mathematical physicist and a professor of mathematics at the University of California, Riverside (UCR)[3] in Riverside, California. He has worked on spin foams in loop quantum gravity, applications of higher categories to physics, and applied category theory. Additionally, Baez is known on the World Wide Web as the author of the crackpot index.
I know people have strong reactions to her and her sensational style, but that is a serious recommendation from a knowledgeable person, so I think we can give this thread a second chance. (Someone emailed and asked us to.)
All: please let's keep the comments on topic and substantive (and avoid the sensationalism and personality aspects).
Edit: this subthread was getting too off-topic so I moved the replies to https://news.ycombinator.com/item?id=41814764. Feel free to reply there if you want.