Based Camp | Simone & Malcolm Collins

Heritability of Pronatalism: Can We Evolve Our Way Out of Demographic Collapse?

Feb 27, 2025
This discussion dives into Jacob Hornstein's insights on genetics and declining birth rates, challenging views held by prominent figures. It traces the heritability of fertility from the 1930s to modern studies, revealing how environmental pressures shape reproductive choices. The episode contrasts France's high birth rates with broader trends and cultural influences, especially the role of Catholic beliefs. Personal anecdotes enrich the conversation, highlighting how cultural and societal contexts impact family planning decisions in today's world.
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INSIGHT

Fertility Is Context-Dependent

  • Heritable fertility doesn't mean higher fertility is evolutionarily better.
  • Varying fertility rates indicate changing environmental pressures, not a consistent advantage.
INSIGHT

Rapidly Shifting Fertility Profiles

  • The personality profiles linked to high fertility change rapidly with evolving technology and societal norms.
  • This rapid shift makes it hard for evolution to optimize for any single profile.
INSIGHT

Accidental Birth Decline

  • The decline in accidental pregnancies is a major factor in the recent fertility collapse, especially in the US and Latin America.
  • This suggests a shift away from impulsive reproductive strategies.
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