[squarecat]

Interesting that a highly transient society has managed to apparently reduce genetic diversity to an observable degree in such a short span of time.

Having recently rewatched Gattaca and falling in the Asperger range of ASD, I can't help but wonder if studies of this nature will nudge us closer to passive forms of eugenics. We're certainly within the realm of feasibility at this point...

[Symmetry]

Wait, isn't this an example of a genetic diversity increase?

[squarecat]

I will freely admit that most of what I attempted to read beyond the first few pages was over my head (and certainly my attention span), but the gist of my interpretation would be that humans are increasingly mating with sameness in mind, or as I will henceforth (egotastically--not a typo) call "self-identifying physiopsychological compatibility".

[aidenn0]

But increased mating with sameness in mind causes increased variability in phenotype. For example heights in the US span a larger range now.

[gwern]

No, he constructs his model specifically to leave the underlying genetics the same in a static population, as a simplification.