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Science cannot yet answer a simple question: why do we need to sleep? [1]. However the question could be easily transposed to a much more fundamental one: why are we awake? And we should not forget that whenever there is a dead-end in answering something, the solution could be that we are not asking the right question. Could it be that the distinction between awake and sleeping is void of meaning?

Simple questions. Research. Crazy. Definitions...