Historians primarily focus on proximate causes & they don't test hypotheses. Jared Diamond's comparative method in Guns, Germs & Steel does.
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Replying to @michaelshermer
@michaelshermer These#HBD people would see anything as genetic in spite of demonstrable evidence of cultural change without genetic change.3 replies 1 retweet 2 likes -
Replying to @christopherburd
@christopherburd@hbdchick I'm quite sure genetic variation plays a role. But it's a smaller one than basic human mental processes.2 replies 0 retweets 0 likes -
Replying to @christopherburd
@christopherburd@hbdchick Absolutely - but all societies are exogamous. Except for hillbillies in Australia. http://www.dailytelegraph.com.au/news/it-looks-like-a-normal-aussie-shed-but-these-walls-hid-horror-beyond-comprehension-the-telegraph-eyes-compound-where-incest-family-lived/story-fni0cx4q-1226782594190 …2 replies 0 retweets 0 likes -
Replying to @AlWest13
@AlWest13 Surely cousin marriage (discouraged by medieval Catholic Church) is widespread in some places. http://www.consang.net/images/0/0e/Globalcolorsmall.jpg …@hbdchick2 replies 0 retweets 0 likes -
Replying to @christopherburd
@christopherburd@hbdchick It is, but usually 1st cousins don't actually marry. Timor is full of 'cousin marriage', but....3 replies 0 retweets 0 likes
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