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alex20_202020 OP t1_jc2lz6i wrote

Disclaimer: below is a hypothesis. Please argue against if know what to say, i like to argue.

Less sleep needed means one can more likely raise a child w/out sleep deprivation. So ones with the trait night have more kids on average. Hence back to my initial statement.

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TheRealDestian t1_jc39eib wrote

That’s an advantage, yes, as needing only four hours sleep would help with many things, but it will take tens of thousands of years for such a trait to work its way into the general population.

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