The fact that cognitive diversity matters does not mean that if you assemble a group of diverse but thoroughly uninformed people, their collective wisdom will be smarter than an expert's. But if you can assemble a diverse group of people who possess varying degrees of knowledge and insight, you're better off entrusting it with major decisions rather than leaving them in the hands of one or two people, no matter how smart those people are.

Traditionally, tours were a means of promoting a record. Today, the record promotes the tour.

It may be that the very qualities that help people get ahead are the ones that make them ill-suited for managing crises. It's hard to prepare for the worst when you think you're the best.

You can't fuel real economic growth with indiscriminate credit. You can only fuel it with well-allocated, long-term investment.

As technology improves, on-screen avatars look more and more like real people. When they start looking too real, though, we pull away. These almost-humans aren't quite right; they look creepy, like zombies.

If we want our regulators to do better, we have to embrace a simple idea: regulation isn't an obstacle to thriving free markets; it's a vital part of them.

When Americans are asked to rank professions in terms of honesty and ethics, insurance agents routinely end up near the bottom of the list - somewhere between politicians and car salesmen. Generally, insurers are seen as clever hucksters who prey on insecurity and ignorance to sell people what they don't need at prices they shouldn't have to pay.