You're right but I'd like to add that MOOC added a new path to my options into learning, a less atomic one, I can put the effort and complete x% before dropping out of exhaustion, and come back not long after that and gather x% more.

It might better fit adult learning process as, at least I, get distracted more easily (less focus power, more things to handle, different brain). Actually that may be why Thrun is going into corporate education...