The "Eugenics Wars" will of course occur far before this occurs…
This story is from
Mark Henderson, Science Editor
HUMANS could evolve into two sub-species within 100,000 years as social divisions produce a genetic underclass.
The mating preferences of the rich, highly educated and well-nourished
could ultimately drive their separation into a genetically distinct
group that no longer interbreeds with less fortunate human beings,
according to British scientist Oliver Curry.