Episode
The Good News Is That One Side Has Definitively Won The Missing Heritability Debate
Astral Codex Ten Podcast · Dec 17, 2025 · 13 min
…the bad news is that they can't agree which one. I explained the debate more here , but the short version is: twin studies find that most traits are at least 50% genetic, sometimes much more. But molecular studies - that is, attempts to find the precise genes responsible - usually only found enough genes for the traits to be ~10-20% genetic. The remaining 35% was dubbed "missing heritability".…