Wonkish, but an important trend to keep an eye on, and speaks to the "shrinking middle":
David Autor, a Massachusetts Institute of Technology economics professor, argues in a paper to be presented Friday to central bankers at the Kansas City Fed’s Jackson Hole symposium that automation is creating a different kind of problem for the economy. Rather than destroying jobs broadly, it is polarizing the labor market. While thinning out the ranks of middle-class jobs easily replaced by machines, he argues automation is increasing the ranks of low-skilled workers who perform tasks that can’t easily be displaced by machines — like cooks or home health workers — and the ranks of high-end workers with abstract thinking skills that computers can’t match.