> so much of the content was in the exercises I have this reaction to some Coursera courses (Odersky's Scala course did this to me). I mean it's wonderful if

> so much of the content was in the exercises I have this reaction to some Coursera courses (Odersky's Scala course did this to me). I mean it's wonderful if you get the "ah hah" to figure out the exercise, and it's probably the most meaningful learning, but it shouldn't be the ONLY way. It's like working on some super expensive niche car; if you have the magic tool that fixes your issue it's trivial, if you don't it's almost impossible.