When people complain about entrepreneurs building social networks instead of curing cancer, they need to understand that this is a big part of the reason. The internet attracts so much innovation in large part because it's very open to innovation. In more regulated/corrupt (the two are closely related) fields, such as health care, there are many barriers to competition that kill innovative new companies. Mobile was a…
I don't know if anybody has read Thomas Kuhn, but this has a parallel in how science works. Science gets "stuck" in one way of thinking. During this time, people work on small details and innovate in tiny ways around the edges. After enough pressure builds up for a change, there's a paradigm shift (he was the guy who coined the phrase) and people start working in the new world.
Complex, rule-based systems of people are mostly quantum by nature. Progress is never a straight line. Instead, it stays frustratingly far away, then it jumps. The stuff you read about in school where everything happened in a linear, step-by-step fashion was just a bowdlerized version of things they tell kids.
Hopefully the system does not require an extreme amount of pressure and our next jump is not too far away. (Apologies to students of Kuhn if I butchered his thesis badly. This is what I got from his work)