Honoré de Balzac, widely considered as one of the founders of realism in European literature, drank 50 cups of coffee each day.

He was well regarded for having keen observation of detail — undoubtedly owing to the fact that the world seemed to be moving in extreme slow motion compared to his hyper-caffeinated mind. He once claimed to have worked for 48 hours with only 3 hours of rest in the middle.

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