[Quinn]

Originally Posted by Delphinus

I don't know if I buy the argument that it's not bad to inbreed. Sure you can get away with a generation or two or whatever, but when its generation after generation .... you just have to look at any of the purebred breeds of dogs or cats and the plethora of ailments that are common to those that your average mutt just doesn't have to worry about to know that this can't really be a good thing.

Theoretically, you should end up with an equal number of superior individuals and inferior individuals. Of course, if you happen to loose the superior individuals along the way, and cross breed the inferior individuals, then you've just stabilized the inferior genes. Or something like that.

I should have noted that the hawaiian kinship system was used on a number of pacific islands, and there is one pacific island where a large percentage of the population is fully colourblind (versus the forms of partial colourblindness that are actually rather common).