Sleeping reshuffles the deck

Schedule your sleep. Everyone likes flexibility but this you need to maintain and keep to a regular system. I remember hearing of a genius who wore the same clothes every day so he didn't have to think about it. It is that kind of thing. Sleeping reshuffles the deck, and you need to it function at a high rate. This is a case of maximizing your resource when awake, and to do that, you need sleep.

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