In the beginning of the human race there was no genetic load which would cause undesirable traits such as appear in offspring of marriages between relatives today.
It is easy to see why a diversity of cultures should confront power with a problem. If culture is about plurality, power is about unity. How can it sell itself simultaneously to a whole range of life forms without being fatally diluted?
I even lived on campus to get the college experience. I had five roommates and I still keep in touch with them while I'm on the road.

