"I am thinking particularly of a shower I took where the lower half of my body was under the running water and the upper half was laid out on the bath mat, eating a loaf of bread."

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The creative act always requires a stepping back. It's called the incubation period. The incubation period - one of the four phases of creativity - is when you're not consciously thinking of a problem, and you're letting it marinate. So this is why you hear time and again, people saying they had that "Eureka" moment in the bath, like Archimedes, or in the shower, or while going for a walk or in a coffeehouse.

— Eric Weiner