Heredity: good or bad.
The Eugenics movement is said to be dead, yet with the advancement in our understanding of the human genome, we can locate those genes that are considered handicaps, even those that are today considered benign (poor eyesight). The first link describes cases where the knowledge of these handicaps could be used against an individual, the other links discuss the issue of Eugenics in its history and development. The question is has culture been used to “improve” the human species and if so, is this, not Eugenics? Consider that if you asked most blind people whether they were a handicap, they would say no, particularly those whose handicaps began at birth.
Also, consider the article “Curse and Blessing of the Ghetto”(attached) and discuss how heritability applies, perhaps not as a “success”, but what then?