I agree that KA is not a perfect substitute, but one thing I will say is that there is a huge difference in the intrinsic motivation behind someone that wants t

I agree that KA is not a perfect substitute, but one thing I will say is that there is a huge difference in the intrinsic motivation behind someone that wants to watch a series of KA videos vs. someone that is told they must take a class. As we know, classrooms are not perfect either. But if we could get classroom education and KA education to both be better (after all, some university courses are shown on vidcast and sections are replaced by digital discussion forums), then I do think KA could be a very viable alternative for the traditional classroom. Instead of telling a student s/he needs to learn calculus, you wait until they recognize the need for it in their daily lives and take the class. Honestly if you don't need it, it really might not be helpful. I can't say I've used any skills from many classes (calculus, accounting, earth science, etc.) other than being able to recount obscure but interesting facts. For those that say well my inherent problem-solving skills have been influenced by the logic of these classes, well they really haven't (and I had great teachers). Everything I learned about framing and solving a problem I learned from real world work experience as a consultant (why schools didn't find a way to teach this to me is a different argument). And in case it sounds like it, yes I do believe I'm more in the "unschooling" movement.