About this episodeThe discussion explores the history, limitations, and future of IQ testing and genetic selection, arguing that…AI summary
The discussion explores the history, limitations, and future of IQ testing and genetic selection, arguing that denying genetic differences in intelligence is socially and politically dangerous. The guest predicts that embryo selection technology will become widespread within a decade, driven by a 'preference cascade' where elites publicly condemn but privately utilize these tools to enhance offspring traits like intelligence and health.
Key takeaways 6
IQ tests have been reliable for 80 years after early cultural biases were removed; they predict educational attainment, income, marital stability, and inversely correlate with criminality and addictive behavior even when controlling for socioeconomic status.
The 'treatment vs. enhancement' distinction is conceptually flawed; just as we use braces for crooked teeth (a natural variation) or glasses for poor eyesight, selecting embryos for higher intelligence or health is a form of enhancement that prevents genetic erosion (accumulation of deleterious mutations) caused by modern medicine.
Cousin marriage practices in certain religious groups (e.g., Islam, parts of the Middle East) increase the risk of recessive genetic disorders; embryo selection offers a way to mitigate this 'mutation load' without requiring harsh eugenic policies.
Elites currently practice 'preference falsification' regarding genetics (publicly denying heritability while privately selecting for smart partners); this will collapse into a 'preference cascade' similar to the fall of the Berlin Wall once companies publicly offer embryo selection for traits like IQ.
Moral enhancement via genetics is risky if it creates unconditional cooperators; game theory suggests 'conditional cooperation' (cooperating with cooperators but punishing defectors/psychopaths) is the evolutionarily stable strategy for group success.
Religiosity and political orientation are moderately heritable (approx. 0.4); over generations, differential birth rates between religious conservatives and secular liberals may lead to genetic shifts in these traits, potentially exacerbated by future embryo selection.
Notable quotes 5AI-generated: wording and quote attribution may be wrong. Use the play link to verify.
“Hitler had Jews and non-Jews cognitively tested and he found that Jews consistently scored higher on IQ tests than Germans did and he banned IQ tests... actually being anti IQ is a Nazi policy is pro-Nazi.”
▶ 0:37Explaining the historical stigma around IQ tests post-WWII, noting that the ban was ironic given the data Hitler received.
“If you leave a thing alone you leave it to a torrent of change... if you particularly want it to be white you must always be painting it over... entropy is this universal force that dissolves boats in the water... that degrades our genome over time.”
▶ 37:53Guest's argument using Chesterton's Post metaphor that maintaining genetic health requires active selection (eugenics/enhancement) rather than passive acceptance, due to accumulating deleterious mutations.
“Blank slatism in the streets, hereditarian between the sheets.”
Describing the cognitive dissonance of elites who publicly deny genetic influences on intelligence/behavior but privately select for these traits in mates and children.
“Selfishness actually wins within a group, but groups of selfish people lose to groups of altruistic people.”
▶ 1:03:30Quoting E.O. Wilson to explain why moral systems and cooperation evolved, and why 'moralistic aggression' (punishing defectors) is necessary for group cohesion.
“We're in East Germany in 1988... everyone knows communism is [__]... once the first person starts breaking the wall... then everyone gets on the wall destroys it.”
▶ 1:23:00Analogy for how public opinion on genetic enhancement will shift rapidly once elites stop hiding their use of the technology.
Chapters & Sections (82)▼
0:00History of IQ Tests and Misusechapter3
0:00Criticisms of IQ Tests and Their History
2:18Genetic Basis of Human Intelligence
3:45Criticisms of IQ Tests and Cognitive Ability
6:10Limitations of IQ Tests and Intelligencechapter4
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