“Policy Tensor writes,”
[IF] Henrich is right, Todd must be wrong about the archaic character of the Western nuclear family. Examination of the evidence shows that Todd is right and Henrich is wrong. The reason is simple — we can rule out the Henrich hypothesis. The alternate hypothesis is that the Church’s war against cousin marriage was directed at the nobles, who did indeed practice it in a manner that isolated them from the dominant family system of their societies. Just as socialism could spread easily over the exogamous communitarian anthropological base and found itself blocked on its boundaries and Islam likewise for the endogamous communitarian base, the Church’s influence may have been greatest in exogamous anthropological terrain. In other words, the alternate hypothesis inverts the causal arrow between family systems and the Church’s influence. The correlation between them is explained by a causal vector pointing in the reverse direction — the exogamous anthropological base explains the extent of medieval Christendom.
Pointer from Tyler Cowen. This is not lowering by very much my probability that Henrich is right.