> This gets particularly interesting when we consider that most people would be absolutely horrified at the idea of killing humans which are "imperfect" in some way, yet as one of the sibling comments says:

>> Its perfectly fine to take an active hand in evolution by selective breeding through marriage, thus "remove "bad" genes from a family tree and potentially adding "good" ones.

Eugenics got itself a bad name early in the 20th century, but if you discard that cultural meme, the basic idea of purposefully improving genetic traits does make quite a lot of sense. It's that meme that makes people discard the concept wholesale.