>>11105807Incest is taboo for two major pragmatic reasons:
1)While a single instance of inbreeding probably isn't going to lead to major issues. The problem is with generational inbreeding. The more times you do it the more your concentrating "bad" genes until you're reliably spitting out sports and stillbirths and are probably retarded yourself.
2) Marriage has been a way to make political bonds and climb the social ladder. If you never marry out, then you would accumulate all the wealth and power into a few insular units while everyone else is disenfranchised. If you've got a cousin you can marry off to another family and the wealth spreads over generations.
