It's called eugenics and it's very bad. At the very least it suffers from this self-referential craziness that nearly guarantees bad results. People are econom

It's called eugenics and it's very bad. At the very least it suffers from this self-referential craziness that nearly guarantees bad results. People are economically unproductive because the economy slowly gets more and more hostile to more and more people. Tyler Cowan and others call this problem "Zero Marginal Product Workers".