Smart people breed smart children, then cultivate that intelligence and their child will eventually repeat the cycle by picking a smart mate and breeding a smart child.
Are you asking where smart people come from originally?
I assumed you meant smart people in general. As in people who can process information and problem solve at a higher degree than the people they are being compared to.
According to WebMD parentage and culture have more to do with it.
https://www.webmd.com/baby/features/what-makes-kids-intelligent
Smart people breed smart children, then cultivate that intelligence and their child will eventually repeat the cycle by picking a smart mate and breeding a smart child.
I don't understand your line of questioning.
Are you asking where smart people come from originally?
I assumed you meant smart people in general. As in people who can process information and problem solve at a higher degree than the people they are being compared to.