Stefan Molyneux and Hank Pellissier discuss Intelligence (IQ) including ways in which human intelligence can be decreased by chosen behavior. Why is the IQ of Ashkenazi Jews so high compared to the general population? What religious tradition has had a fascinating dysgenic impact on intelligence? Should college education be free?
Hank Pellissier is a humanitarian writer, editor, speaker and producer, especially on futurist and transhumanist topics. He’s the author of several books including "Brighter Brains: 225 Ways to Elevate or Injure IQ" and "Why is the IQ of Ashkenazi Jews so High?"
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Within Christianity, there were no prohibitions of cousin marriages until a religious council in France banned it a few decades after the fall of the Western Roman Empire. Orthodox Christians also enacted a ban on the practice.
As far back as the 5th century AD, Saint Augustine argued that incestuous relationships diminish social cohesion by promoting family tribalism.
Jews, on the other hand, never had any bans on cousin marriages. Instead, they adopted the practices of the local dominant culture. Ashkenazi Jews, for example, very rarely married their cousins due to European influences, whereas non-Ashkenazim had relatively high rates of cousin marriages.
During the Reformation, the Protestant branches, such as Baptists, Lutherans, and Methodists, rejected the Catholic ban, which is the reason why cousin marriages in the largely-Protestant United States were legal in all states prior to the Civil War.