Critics of consumer capitalism like to think that consumers are manipulated and controlled by those who seek to sell them things, but for the most part it's the other way around: companies must make what consumers want and deliver it at the lowest possible price.

Bubbles and crashes are textbook examples of collective decision making gone wrong. In a bubble, all of the conditions that make groups intelligent - independence, diversity, private judgement-disappear.

In effect, dividing your attention means that neither (or none) of the things you're working on is really getting the full effect of your intelligence, and that it in the end takes you longer than it would if you did one thing at a time.

Disasters redistribute money from taxpayers to construction workers, from insurance companies to homeowners, and even from those who once lived in the destroyed city to those who replace them. It's remarkable that this redistribution can happen so smoothly and quickly, with devastated regions reinventing themselves in a matter of months.

Businesses that have gone through an episode of hyperinflation become understandably alert to the threat of it: at the first hint of inflation, they're likely to increase prices, since they've learned that if they don't, and inflation hits, their businesses will be wrecked.

The U.S. is excellent at importing cheap products from the rest of the world. Let's try importing some human capital instead.

Capitalism, after all, is no fun when real failure becomes a possibility.