It's an interesting parallel to musicians but I think we are far from the tech actually being good enough to scale that well. The problem for most courses is no

It's an interesting parallel to musicians but I think we are far from the tech actually being good enough to scale that well. The problem for most courses is not recording the lectures, it is trying to replicate the one on one (or small group) time available with at least TAs, if not professors. This does work decently well over Zoom for an existing class, where the course staff is selected based on the ~# of students enrolled, but I don't see how it would work for a more broadly taught online class. I got free access to a MOOC this summer that usually costs money just to view (HMX), and even at that scale the course forum is low quality and the "assignments" that have open ended questions just give you an automatic check mark, so you get zero feedback on your thinking. It's a solid class still and I'm enjoying it as a for fun learning experience, but it is not even close to what I would want out of a subject I am more seriously studying. Anyway, I think a large part of that is just the lack of interaction with anyone trained in the material. Maybe I live in a bubble, but the best advice I got as a frosh at orientation was "if you only go to one thing in person, make it office hours", and I think many of my friends would agree.