Nowhere.

Brain Pickings reviews Jonah Lehrer's lastest book, Imagine: How Creativity Works ...

How does one measure the imagination? The daunting nature of the subject led researchers to mostly neglect it; a recent survey of psychology papers published between 1950 and 2000 revealed that less than 1 percent of them investigated aspects of the creative process. Even the evolution of this human talent was confounding. Most cognitive skills have elaborate biological histories, so their evolution can be traced over time. But not creativity—the human imagination has no clear precursors. There is no ingenuity module that got enlarged in the human cortex, or even a proto-creative impulse evident in other primates. Monkeys don’t paint; chimps don’t write poems; and it’s the rare animal (like the New Caledonian crow) that exhibits rudimentary signs of problem solving. The birth of creativity, in other words, arrived like any insight: out of nowhere.”

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