But if you really listen to people, I've found that most can think pretty deeply about grand and overarching subjects. And it's people from all walks of life - auto mechanics, high school dropouts, civil servants, retirees, in addition to the engineers and executives and authors you'd expect. Look at how many people had opinions on the bailout, for example, or how many think they could do a better job than Ben Bernanke at steering the economy. Or look at the traffic to forums like Reddit, where people are invited to leave their comments about all sorts of stories. Most of them are wrong, but that's still an awful lot of thinking going on about pretty abstract subjects.
