Theoretical / mathematical physics at the graduate level and above.
This is NOT a popular science channel. Here you find real theoretical physicists doing real theoretical physics.
For TASI lectures, see the official channel:
youtube.com/channel/UCjCY_TFgnwlUVP-2IEWcHqQ
For Strings 2021 talks, see the official playlist:
youtube.com/playlist?list=PLg0_ydgtbHGFViBI-9HW-G6…
For Strings 2020 talks, see the official playlist:
youtube.com/playlist?list=PLNk9anDuDKt2xLA-_yu5InP…
For Strings 2018 talks, see the official channel:
youtube.com/user/oistedu/search?query=strings+2018
For Strings 2017 talks, see the official channel:
youtube.com/channel/UCFeW8O-DWElfT436yuivT6g