The second model, on the other hand, shows that to explain the stability of success from one generation to the next, we only need explain the stability of the genetic endowment of the population (talent). That stability, now called the Hardy-Weinberg equilibrium, received a satisfactory mathematical explanation in the work of G. H. Hardy and Wilhelm Weinberg in 1908. And yes, they used yet another causal model—the Mendelian theory of inheritance.
