It is interesting to consider how many jobs (globally) have been created, or shall we say, how many people's professional life has been shaped, by the software framework that DHH released to the world. So in a way, he has created jobs. Without ever diluting his revenue from 37signals. (comments?)<p>Personally I really enjoyed this talk. As a business school grad who taught himself to programme and now works for a bootstrapped web startup, I still value what I learned at business school. I think DHH is a bit harsh with the 'unlearn' label. I consider the core principles learned at b-school to be very important to shaping my everyday thinking. It is the specifics (DHH's example of Porter's five forces applies here) that can be forgotten. But those specifics were a great tool for developing the overall business mindset that he also describes. I don't regret my time there whatsoever.