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Nobody is arguing that there are not other drives. But also the fact that people do discount future rewards is well established.
I agree it's well-established. But most of the modeling about why discounting exists seems to take a very individualistic, almost solipsistic approach, as if personal death renders all future benefits irrelevant to one's blood-line or civilization.
I'm not quite following. I don't think there's much modeling about *why* the discounting exists, but I agree that modeling of the discounting itself is very individual-centric.
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