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 Strings 2020 talks, please see the official playlist:https://www.youtube.com/playlist?list=PLNk9anDuDKt2xLA-_yu5InPfuI53BIBP6For Strings 2018 talks, please see the official channel:https://www.youtube.com/user/oistedu/search?query=strings+2018For Strings 2017 talks, please see the official channel:https://www.youtube.com/channel/UCFeW8O-DWElfT436yuivT6g