kraftiekortie wrote:
Like I said...just because both parents are smart doesn't mean the kid will come out smart. Two mechanical geniuses who are socially adept could conceivably conceive a clumsy, asocial Asperger's-type kid.
Eugenics is bad for a similar reason that having babies by your own father is bad. It contracts the gene pool. This sort of thing has led to extinction of species in the past.
I've been thinking about exactly this, and I wonder if eugenics as practiced in the past, such as the European upper level nobility, results in accentuation of BOTH positive and negative characteristics.
My dad was very interested in European heraldry and noble bloodlines, and towards the end of his life he actually met a few mid-level nobles whose families had been forced into exile after WW1. They tended to be extremely intelligent, but also to have severe physical ailments that got progressively worse over time to the point that a lot of them died young, in their 50s or 60s. We're talking about families who had interbred in isolation for over a millenium to the point that their blood and gene makeups had evolved into a separate subclass from commoners, a subclass that could be detected with modern gene testing.
So, any culture that engaged in eugenics would over time see people who had exaggerated expression of characteristics that would fall in both "good" and "bad" camps. If you had a culture that engaged in selective breeding, which is what I really think Ann means when she says "eugenics", eventually people would have exaggerated expression of the positive qualities that were intended, but also of qualities that were deemed unimportant/negative.
For example, European nobility in the Middle Ages had to be very smart in order to rule effectively. BUT they did not need to do much physical labor. So, now you have a group of people who are very intellectually gifted but physically weak. OTOH, it has been noted that many Black Americans, those who were brought here as slaves and bred for 200 years for slave labor, have qualities that would make for good slaves-great physical strength and stamina in order to do extremely difficult menial labor, and low intelligence so they would not be able to revolt or run away.
I am not trying to "bash" anybody, I am simply pointing out examples of how selective breeding can be used to create positive alongside of negative outcomes.
It is true that eugenics when practiced with a small randomly chosen subset of people, such as fundamentalist Mormons, eventually leads to generally unpleasant outcomes. However, when we are not talking of eugenics but selective breeding, where the people allowed to breed have both positive and negative qualities that are considered desirable, that eventually the desired qualities will be expressed in an exaggerated fashion.