But what are the moral dilemmas raised by this new technology? Will it help or hurt us to know the diseases that may lie in our future? What if such information falls into the hands of insurance companies, employers, or prospective mates?
This is clearly not science like evolution, heliocentrism, vaccinations, and anthropogenic climate change. That something as seemingly natural as relatedness could in fact vary widely among peoples, based on ideas that may defy genetic relationships, was one of the earliest discoveries of anthropology. Today we can see genetic ancestry testing as a cultural site for contrasting ideas and assumptions about descent, the nature of human groups, and the role of science in modern life.
In the course of this diaspora, we mated with other human-like species and assimilated some of their DNA, but eventually replaced all of these other close evolutionary cousins, without exception – leaving only one human species today. A flood of new information from Ancient DNA, Fossils, Archeology and Population Studies calls us to revisit the matter, summarizing knowledge and updating conclusions since the last CARTA symposium on the subject six years ago.