What if 'my' marriage systems were instituted globally *here* and *now* on RL Earth?
Posted: Posted August 12thEdited August 12th by chiarizio
@elemtilas: @linguistcat: @yukta: @EN: @Xhin:
What if “my” marriage systems were instituted globally *here* and *now* on RL Earth?
Suppose Earth’s current population were divided into 44 (jointly exhaustive and pairwise exclusive) patriclans, such that everyone were in one and only one of them, namely the one their father was in.
And suppose, simultaneously and independently, the current population of the globe were divided into 44 matriclans, such that everyone was in one and only one of them, namely the one their mother was in.
And suppose, again, independently and simultaneously, the global population were divided into 44 “alterclans”, such that everyone was in (only) the one their parent-of-the-opposite-sex was in.
There’d be 44^3 = 85,184 combinations of patriclan and matriclan and alterclan. There’d be on average around at least 82,175 people in each such combination.
Suppose that each such combination included roughly equal numbers of marriageable men and marriageable women.
Now suppose the following rules of marriage.
Two people can’t marry unless neither is in any of the same clans any of the other’s grandparents is in;
and neither of either one’s parents is in any of the same clans as either of the other’s parents is in;
and none of either one’s grandparents is in any of the clans the other is in.
That rule, by itself, doesn’t rule out the possibility that the groom’s father’s mother and the bride’s mother’s father are full-siblings, and so the groom and bride are full-second-cousins.
So let there be an additional rule that a couple can’t marry if they are full second-cousins; but they can marry if they’re half-second-cousins, that is, the groom’s father’s mother and the bride’s mother’s father are half-siblings.
It also allows that each party’s FFM (father’s father’s mother) is the full sister of the other party’s MMF (mother’s mother’s father), and each party’s MMF is the full-brother of the other party’s FFM. So they could be double-full-third-cousins. But I’m going to allow that.
For each type of clan, the fraction of otherwise-eligible MOTOS (members of the opposite sex) who are NOT ruled out because of too near co-eponymy in that clan-type, is (41*40*41*40)/(44*43*42*41) = about 82.55%.
The fraction who won’t be ruled out by any clan-type is the cube of that, which is about 56.26%.
So more than half — around 9/16 — of the otherwise-eligible MOTOS a person meets, will be fully eligible.
I think this would be suitably “mixing”.
What does anyone else think?
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