This is somewhat in line with what I was stating re the more "mentally-challenged" humans having way more children than the more gifted individuals, ever since the advent of the Neolithic era . Admittedly, modern education is not exactly synonymous with higher intelligence, especially with modern education being dumbed-down and politically-correct/Marxist - but, perhaps,the solution is to have home-schooling for one's children and get them working from age 16 or 18, if one wants lots of grandchildren. Well, a case of devolution/evolutionary-regression, not evolution, really.