Why are people always so disinterested in this topic when its the exact difference between first and 3rd world. This is the most important feature we have and anyone who actually bothers to think he will realize that improving his intelligence is the most important task as it helps him become the best thinker he can be. Its like a competing athlete refusing to abuse all the advantages he has like proper nutrition and better workouts, form etc. Its insane... It seems like most people just become completely silent when they hear that topic.