Malcolm Gladwell’s bestselling book, Blink: The Power of Thinking Without Thinking, has a provocative thesis. Contrary to commonsense, which warns against “snap judgments,” Gladwell argues that, often, our automatic, largely unconscious way of making decisions throughout the day is a fairly reliable way to navigate life in the modern world. “There can be as much value in the blink of eye,” writes Gladwell, “as in months of rational analysis.”