Different races as the first step of speciation

[Calpalned]

4) RACE AND SPECIATION It seems that different races of modern humans

arose after being isolated for about 80,000 years. Are different

races the first stage of speciation? That is to say, for example, if

the people of Vietnam and the people Germany stopped having children

with foreigners outside of their respective countries, would they

eventually become different species?

online...

 

[Pythagorean]

Even if one population of germans got isolated into two, they would speciate.

 

[Calpalned]

How long would it take? Neanderthals and modern humans drifted apart about 600,000 years ago, but according to some they could still interbreed...