If allowed to continue, this process will turn the United States into a declining, unfair society with an impoverished, angry, uneducated population under the control of a small, ultrawealthy elite. Such a society would be not only immoral but also eventually unstable, dangerously ripe for religious and political extremism.

The real challenge is figuring out how the United States can regain control of its future from its new oligarchy and restore its position as a prosperous, fair, well-educated nation. For if we don't, the current pattern of great concentration of wealth and power will worsen, and we may face the steady immiseration of most of the American population.

A very high fraction of America's economic problems come not from our difficulties with education or globalization or competition with the Chinese or whatever. But they come from the fact that a small number of wealthy and powerful people who run dangerous and/or inefficient companies are able, through the use of money in the political process, to prevent the government from regulating them properly.

It is no exaggeration to say that since the 1980s, much of the global financial sector has become criminalised, creating an industry culture that tolerates or even encourages systematic fraud. The behaviour that caused the mortgage bubble and financial crisis of 2008 was a natural outcome and continuation of this pattern, rather than some kind of economic accident.

But that's not how most of the people mentioned in this book became wealthy. Most of them became wealthy by being well connected and crooked. And they are creating a society in which they can commit hugely damaging economic crimes with impunity, and in which only children of the wealthy have the opportunity to become successful.

If allowed to continue, this process will turn the United States into a declining, unfair society with an impoverished, angry, uneducated population under the control of a small, ultrawealthy elite. Such a society would be not only immoral but also eventually unstable, dangerously ripe for religious and political extremism.

Everyone knows, or has strongly suspected, that capital theory is difficult.