Cold-turkey deficit reduction would cause a significant recession. A recent analysis by the Congressional Budget Office estimated that going headlong over the cliff would cause our gross domestic product, which has been growing at an annual rate of around 2 percent, to fall at a rate of 2.9 percent in the first half of 2013.

If you look at the studies coming out of the Congressional Budget Office, the number one thing that's going to blow a hole in the deficit as we go forward 20, 30 years is government spending on healthcare.

The stock market crash in October 1929 didn't destroy a particularly large amount of wealth or make people highly pessimistic. Rather, it made companies and consumers very unsure about future income, and so led them to stop spending as they waited for more information.

In the four decades after World War II, manufacturing jobs paid more than other jobs for given skills. But that is much less true today. Increased international competition has forced American manufacturers to reduce costs. As a result, the pay premium for low-skilled workers in manufacturing is smaller than it once was.