In his book Sources of Power: How People Make Decisions, Gary Klein tells the story of a group of firemen fighting a fire inside a one-story house, spraying water at the flames in the kitchen: “The lieutenant starts to feel as if something is not right. He doesn’t have any clues; he just doesn’t feel right about being in that house, so he orders his men out of the building—a perfectly standard building with nothing out of the ordinary.” The commander later said that he couldn’t explain what had led him to shout the warning, attributing it to a “sixth sense.” It was a very good thing that he
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