Of course the couples described in this statement are consolidating their gains not simply by passing on their genes to their offspring but also by investing resources in their children to give them a special boost over others in the social competitions they will face as adults. So the trend involves behavior that if unopposed produces continuous large violations of FEO. But notice that in theory a sorting of people with more favorable genetic endowment into higher income classes could yield a situation in which the favorably endowed rich lavish resources on their children to enhance their competitive skills, so rich kids get far better education and socialization than poor kids, yet those with the same native talent potential and the same ambition still end up with the same chances of competitive success, so FEO is satisfied. In theory a perfect meritocracy (satisfying both careers open and non-inclusive FEO) can be a rigidly stratified class hierarchy with no movement of individuals from the social class of their birth.