>>10218066i have a hard time with any of the math/science youtubers because i've yet to find one who isn't doing a crap job at actually doing justice to science or math; the overwhelming tendency is to dumb it down and insert hidden "i have inserted brainlet-tier misconceptions to make this more watchable" bits or to be like "hey woah this is cool and mysterious! let's focus on that!" when really their argument for why it's cool or mysterious is easily explained in 2 seconds, but then their comments section doesn't turn into the noob-festival they need to survive on youtube.
walter lewin is the only real scientist who makes youtube instructional vids. but even he teaches things in a fairly undergrad-freshman way and he's very idiosyncratic. khan academy is at least sort of respectable but for sure it's targeted at people who live 200 miles from anyone who knows anything so it's completely sub-undergrad level; it's like undergrad topics for middle schoolers with added production values.
youtube is good, though, for watching lectures by real experts. you can find a lot of Ed Witten talks and Steven Weinberg interviews and that kind of stuff. but that's not what brainlets like to watch