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Thomas Edison used sleep too. It is written that he would would would sit holding two metal objects in a chair over metal pans. He would sit and contemplate a hard problem until he dozed off and dropped the items in to the pans, waking him up, after which he would rapidly write down what conclusions or ideas he came to in that few moments of sleep.

He is not alone in this regard among the elite thinkers, “healers”, and inventors throughout history