setting the stage?

what if the degree/type of relatedness between the members of a society affects the selection pressures on those individuals?

what i’m thinking is: if my little hypothesis is correct that europeans quit being tribal because we started (and continued) outbreeding, what then? which individuals will do well (and succeed reproductively) in the new environment as opposed to the old?

the old, tribal social environment was one in which family/clan units were tightly knit and social stuff (like who gets to punish a lawbreaker, for instance) was based on the family/clans.

the new, corporate social environment is one in which clan units disappeared to be replaced with individuals/nuclear families as the basic units in society, and social stuff (like who gets to punish a lawbreaker) is based on the corporate groupings of a bunch of individuals (in the case of enforcing the law, the state).

so, who’s going to do well in such a society? what, for instance, personality traits might be selected for (or against, for that matter)? one possible example i thought of: might the “genes for” reciprocal altruism (whatever they might be) be more frequent in a corporate society than in a tribal one? makes sense to me. conversely, maybe the “genes for” altruism towards family members (whatever they might be) are more frequent in a tribal society.

just some thoughts.

previously: and so my next question naturally is…

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