The Wild Ethics Of Human Genetic Enhancement - Dr Jonathan Anomaly - #598

Episode Summary

Executive Summary: The conversation argues that heredity already shapes social inequality through assortative mating and that embryo selection, IVF, polygenic scores, and future gene-editing tools will intensify this trend. The speakers debate whether “eugenics” is simply any deliberate use of heredity knowledge, weigh ethical concerns against parental duties, and forecast major impacts on class inequality, culture, fertility, and social cohesion.

Main Topics: Eugenics, genetic enhancement, and embryo selection (Priority: 5/5): The guest reframes eugenics broadly as intentional use of heredity to influence offspring traits, arguing that genetic enhancement and embryo selection are essentially euphemisms for the same project. Assortative mating and existing genetic inequality (Priority: 5/5): The discussion emphasizes that genetic inequality is already rising because educated, high-status people increasingly pair with each other, especially around intelligence and related traits. Current and emerging reproductive technologies (Priority: 5/5): IVF, embryo screening, polygenic risk scores, and future in vitro gametogenesis are presented as the practical mechanisms that will make selection for health, intelligence, and personality more precise. Ethics, coercion, and disability concerns (Priority: 4/5): They distinguish voluntary enhancement from coercive Nazi-style eugenics and address objections about disability rights, moral responsibility, and the risk of devaluing certain communities. Trade-offs, pleiotropy, and limits of enhancement (Priority: 4/5): The guest argues there are real biological trade-offs, especially for complex traits, because genes can have multiple effects; however, he believes selection can still yield net benefits. Social inequality, cultural consequences, and access (Priority: 5/5): The conversation explores whether enhancement will widen inequality or be democratized over time like other technologies, with subsidies and market diffusion potentially reducing gaps. Fertility decline, masculinity, and civilizational future (Priority: 4/5): The speakers connect genetics to pronatalism, declining fertility, male aggression, nationalism, and the possibility that societies will need stronger cultural incentives to reproduce.

Key Arguments: Heredity already matters: before any gene editing, education-driven assortative mating has increased genetic inequality in the West. Eugenics, in the broad sense, means using heredity knowledge to influence children’s traits; selective breeding in animals and mate choice are longstanding forms of it. The Nazi association is historically justified but also politically weaponized to shut down discussion of heritability and parenting choices. Embryo selection via IVF and polygenic risk scores is already real and can select against disease and, to some extent, for intelligence and other traits. The moral difference between embryo selection and gene editing depends mainly on technical safety; if editing were precise and mutation-free, it would be morally comparable or even preferable. Parents have duties to children analogous to feeding and educating them; if they can improve a child’s health or prospects safely, they may have an obligation to do so. Complex traits involve pleiotropy, so altering one variant can affect multiple outcomes; this makes current CRISPR use risky for polygenic traits. Selection for traits like conscientiousness, intelligence, health, and symmetry is usually beneficial, but extreme optimization can create downsides and trade-offs. The rich will adopt enhancement first, but technological diffusion usually makes innovations cheaper and more accessible over time. A major social risk is widened inequality and possible class divergence, though subsidies and broader access could offset some of it. Fertility decline is a deeper civilizational threat than many people recognize, and technologies that extend control over reproduction may reshape pronatalism rather than solve it. Culture, religion, and nationalism may become more important if liberal societies cannot maintain fertility and cohesion. Masculine traits and intergroup competition still serve civilizational functions; eliminating them entirely would likely weaken society.

Data Points: Year the term “eugenics” was coined: 1883 - Francis Galton coined the term during the 19th-century rise of heredity and evolution research. German disabled citizens sterilized under Nazi eugenics: about 300,000 - Used as an example of coercive, abusive eugenics. IQ heritability by adulthood: about 80% - Cited to argue that intelligence is strongly heritable and relevant to parenting and selection. Heritability of many personality traits: about 50% - Used to support the claim that personality can be influenced by genetic selection. Tay-Sachs and aneuploidy screening: already possible through IVF testing - Mentioned as current embryo screening applications for simple genetic disorders. Genome-wide association study datasets: millions of people - UK Biobank, Japan Biobank, and other biobanks are used to derive polygenic risk scores. Number of biobanks mentioned: 10 or 12 - Referenced as the global set of large genetic databases enabling trait prediction. Expected IQ spread across embryos: roughly 9.5 points - Estimated difference between the lowest- and highest-scoring embryo among 10–12 embryos. Count of embryos in a typical IVF selection: 10 or 12 - Used to illustrate current selection limits and the expected variance among embryos. Potential future embryo count with IVG: 500 to 1,000 - Projected increase if in vitro gametogenesis makes many more embryos available for selection. Correlational risk between extremely high IQ and Asperger’s: about 0.1 to 0.2 - Suggested as a small possible downside at the high end of intelligence. Korea fertility rate: 0.8 per couple - Used as a stark example of demographic collapse risk in East Asia. Estimated time horizon for wider enhancement adoption: 10–20 years for broadening embryo selection; 20–30+ years or more for gene editing - The guest speculates embryo selection will scale sooner than CRISPR-based enhancement. Selective breeding example: corn: 3,000 years ago - Illustrated how domestication transformed crops through selection over millennia.

Pivotal Quotes: "Eugenics, in the broadest sense, is any attempt to harness the knowledge that we have about heredity to influence the traits of our kids." — Jonathan Anomaly: He defines eugenics expansively to include voluntary, noncoercive forms of genetic selection. "What the technology will do? It'll accelerate those inequalities." — Jonathan Anomaly: He describes how gene selection and related tools may intensify existing genetic stratification. "I think the moral difference would only stem from the empirical realities." — Jonathan Anomaly: He argues that embryo selection versus gene editing differs mainly by safety and technical feasibility, not principle.

Implications: Genetic selection is moving from theory to practice, raising urgent questions about fairness, disability rights, fertility, regulation, and access. If costs fall, enhancement may become mainstream; if not, inequality and black markets could deepen.