YouTube has had the content and engineering UI to beat Coursera or iTunes U since 2009. As a nerdy little kid from Bangalore, I remember _really_ learning how to write code from Mehran Sahami's programming paradigms videos from back in the day. (While we're on the subject of Mehran-appreiciate: we're all still geometers living in the times of Euclid OR we're all coders living in the times of Mehran? :)).
Couple that with benefits of YT Premium, there's a ton of engaging features they can build here that very likely make it a super sustainable product long term. I'm super excited!