Perhaps not surprisingly it was Balzac who wrote one of the all-time best descriptions of how it feels to be overcaffeinated, a state that he said produces a kind of animation that looks like anger: one’s voice rises, one’s gestures suggest unhealthy impatience; one wants everything to proceed with the speed of ideas; one becomes brusque, ill-tempered, about nothing. One assumes that everyone else is equally lucid. A man of spirit must therefore avoid going out in public. It is one thing to live in a shared culture of caffeine, in which everyone’s mind is running at more or less the same
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