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Heritability can be either genetic or learned, and there is good evidence for a genetic component.
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that’s fascinating, thanks for sharing that link!
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I would suspect that it is mostly learned, but can be taught to children who are reared the right way. My parents and their parents were both low time preference, and they have passed that on to me through their teaching.
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That's in line with the study. It found about a quarter attributable to genetics.
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