Education intersects with two problem areas that have historically been correlated: 1. Knowledge sharing. Books no longer take three months of a person's time

Education intersects with two problem areas that have historically been correlated: 1. Knowledge sharing. Books no longer take three months of a person's time to copy, but <$0.01 of electricity. Video lectures are now freely available. This is awesome! But it's not the full picture when it comes to education. You also need frisbee games and poetry nights. 2. "Social". This includes credentialing, social networking, and creation of an environment (in college, a mostly parentally funded and artificial one) conducive to rapid learning. The second of these is much harder, because people still believe that exclusivity is necessary to preserve quality (and, sadly, they are not entirely wrong). I've said before that there are two sub-problems in social. One is documenting existing relationships. That's lucrative but does little real good for the world. The second is to expand the social graph. That does a lot of good but it's also risky and rarely remunerative because some people (and the vast majority of the powerful) like exclusivity. The problem with "disruption" is that it assumes the disrupted are old fogeys who won't fight back, and that's never true.