Sigmund Freud postulated that dreaming is a reflection of the unleashed id; it represents one’s deep sexual fantasies and frustrations implanted during childhood. But what happens when we fall asleep is usually much less dramatic; we dream about the problems of everyday life. Now scientists understand dreaming as an integral part of the creative process – it’s not just about the problems of everyday life, it’s about solving them.
In 2004, the neuroscientists Ullrich Wagner and Jan Born published a paper in Nature that examined the relationship between sleep and problem solving. In one experiment, they tasked participants with transforming a long list of number strings. The task required participants to apply a set of algorithms that would scare off most save a handful of math geeks. However, the researchers integrated an elegant shortcut that made the task easier. How many people, Wagner and Born asked, would catch it?
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