ARE SNAP DECISIONS UNDERRATED? We assume the quality of a decision is directly related to the time and effort that went into making it. But there can be as much value in the blink of an eye as in months of analysis.

WHAT KIND OF JUDGMENTS ARE BEST MADE FAST? In matters of taste, people lose something by taking a long time. With romantic choices, for example, you know whom you're attracted to in the first two seconds. When you try to rationalize it, you do a much worse job.

SO OVERTHINKING IS COUNTERPRODUCTIVE? Often. In emergency rooms, doctors act in the moment. And we know cops make fewer errors when they're alone than with a partner. With decision making, there's real value in having a smaller information flow.

DO SOME PEOPLE MAKE BETTER SNAP DECISIONS THAN OTHERS? If you have experience with something, you can trust your gut feelings more. A mom may look at her child and know instantly if something's wrong. That's called women's intuition, but it's based on experience.