This is the single most important trend in the world today. And it is a critical reason why, to get into the middle class now, you have to study harder, work smarter and adapt quicker than ever before. All this technology and globalization are eliminating more and more “routine” work — the sort of work that once sustained a lot of middle-class lifestyles.

The merger of globalization and I.T. is driving huge productivity gains, especially in recessionary times, where employers are finding it easier, cheaper and more necessary than ever to replace labor with machines, computers, robots and talented foreign workers. It used to be that only cheap foreign manual labor was easily available; now cheap foreign genius is easily available. This explains why corporations are getting richer and middle-skilled workers poorer. Good jobs do exist, but they require more education or technical skills. Unemployment today still remains relatively low for people with college degrees. But to get one of those degrees and to leverage it for a good job requires everyone to raise their game. It’s hard.