> If you look at IQ and the kinds of jobs people sub-100 IQ can retain, you begin to realize very quickly that about half of the population is going to need to be retrained in some kind of intellectual job going forward.

This is a troubling thing to think about. What I can see happening is that increasingly, the utility of the labor of people in that subpar, but still adequate, IQ band is steadily decreasing as automation tears out the bottom of semi-skilled labor. You can take somebody with an 85 IQ and put them on an assembly line, and they'll make a good living in 1970, but you can't realistically send that person to a dev bootcamp and make them into a web developer in 2018. So what do they do? Low skilled service industry work sure isn't the answer. My suspicion would be that the trades are most likely to combine reasonable return and resistance to automation, along with a probable shortage once the boomers retire, but it's a thorny question.

I think it's become obvious that the "Everybody needs to go to college" narrative has been borderline disastrous, given the mountains of student loan debt and stunted development that my generation has experienced.