- https://www.youtube.com/c/SimonsInstituteTOC simons institute (UC Berkeley): advanced academic math, cs, and other interdisciplinary seminars, streamed live

- https://www.youtube.com/user/IPAMUCLA (UC LA): institute for pure and applied mathematics: more advanced academic math and cs seminars

- https://www.youtube.com/user/NaSESYNC national socio-environmental synthesis center: interdisciplinary science seminars

- https://www.youtube.com/channel/UCcr5vuAH5TPlYox-QLj4ySw alan turing institute: variety of advanced cs

- https://www.youtube.com/watch?v=ENpdhwYoF5g Schwartz Reisman Institute: inter-agent friendliness/game theory

- https://www.youtube.com/channel/UCCcrR0XBH0aWbdffktUBEdw mutual information: visual explanation of ML fundamentals

- https://www.youtube.com/user/JimBobJenkins game theory and international relations

- https://www.youtube.com/channel/UCLB7AzTwc6VFZrBsO2ucBMg robert miles: "ai safety"-crowd ai safety videos. don't let this be your only perspective on ai safety, the ai safety people are great but their whole community has a shared anxiety disorder. heed their warnings but don't have the meltdowns they accidentally encourage; just imagine yourself petting the ai safety researchers on the head and going "there there, the ais will be friendly because of your work, thanks for getting me up to speed" and listen thoughtfully. emotional tone warning aside, I do like this channel. just not as much as the simons institute's videos on ai bias, alignment, safety, objectives, etc etc etc.

- https://www.youtube.com/user/PaulHBeckwith large scale climate science dude who I think isn't crazy but I'm not sure

- https://www.youtube.com/channel/UCFXBh2WNhGDXFNafOrOwZEQ/vid... oxford vgg continues to be an impressive vision group

- https://www.youtube.com/c/NormalizedNerd/featured same kind of stuff as mutual information

- https://www.youtube.com/playlist?list=PLbg3ZX2pWlgKV8K6bFJr5... art of the problem makes very good visual explanations of middling to advanced cs topics

- https://www.youtube.com/user/TheRoyalInstitution popsci talks that typically get fairly advanced. better ted talks, in a sense.

- https://www.youtube.com/channel/UC8aRaZ6_0weiS50pvCmo0pw institute for advanced study is not messing around with their name

- https://www.youtube.com/channel/UCwG9512Wm7jSS6Iqshz4Dpg ACM SIGPLAN: formal methods, formal verification, formal languages, etc

- https://www.youtube.com/c/Cirm-mathFr another advanced math channel I watch too little to remember details about. browse it yourself if you want

- https://www.youtube.com/c/RationalAnimations animations about the future and stuff

- https://www.youtube.com/c/Sevish exceptionally weird music

- https://www.youtube.com/c/JordanHarrod ai and ml stuff

- https://www.youtube.com/channel/UCX3XfA9qjWjymue2I_hcW1A formal verification and stuff

- https://www.youtube.com/channel/UCUBpU4mSYdIn-QzhORFHcHQ more formal verification stuff

- https://www.youtube.com/channel/UC9infsKo33_2LUoiqXGgQWg society analysis and stuff

- https://www.youtube.com/c/DanWorrall really good audio dude

- https://www.youtube.com/c/12voltvids small electronics channel I don't see mentioned here yet

- https://www.youtube.com/c/THUNKShow STEM video essays and explainers

- https://www.youtube.com/channel/UCrCTC5_t-HaVJ025DbYITiw alice cappelle: video essays I guess idk

- https://www.youtube.com/channel/UCecF2icZlEIJ__9XS6woPGw zoe bee: how to talk to angry strangers on the internet and stuff like that

- https://www.youtube.com/channel/UC4V_jMdRbbTrmBVJB6FDzgw unlearning economics: a dissenting perspective on economics; don't skip the other economics channels just because you watch this one, but it combines well with the others imo

- https://www.youtube.com/channel/UC_7FDEMkBBWWcol7QPzToaw one dude's commentary on native history; don't skip other commentaries on native history just cuz you watch this one, but again, combines well imo

there, some channels. there are a ton of channels already mentioned here; it's great having an index of them, but remember to browse them yourself and skim some videos.