It's definitely a fascinating idea, I could see it fit as even an embedded service in online classes(Of trad university, or even new-age course-suppliers) where

It's definitely a fascinating idea, I could see it fit as even an embedded service in online classes(Of trad university, or even new-age course-suppliers) where professors who make videos or have cleared-videos on a class playlist use that as class-participation etc. It's interesting indeed.