In his book Blink: The Power of Thinking Without Thinking, Malcolm Gladwell describes an incident in which a firefighter ordered his men to retreat from a burning house. As they were shooting water into the kitchen, the lieutenant suddenly shouted, "There's something wrong. Get out now!" Seconds later, the floor that the men had been standing on collapsed.
While in the burning house, the lieutenant was not consciously thinking about the things that made the fire seem unusual. His