Why have economies polarized so sharply since the 1980s, and especially since the 2008 crisis? How did we get so indebted without real wage and living standards rising, while cities, states, and entire nations are falling into default? Only when we answer these questions can we formulate policies to extract ourselves from the current debt crises. There is widespread sentiment that this crisis is fundamental, and that we cannot simply “go back to normal.” But deep confusion remains over the theoretical framework that should guide analysis of the post-bubble economy.