My additional theory on top of that was that in warm countries nature often provides free food. Don’t need to hustle. Don’t need to hustle to create shelter also. So the environment sort of discourages any extra effort.
Good point, plus what if some cultures evolved to tolerate heat or cold more so than others. With different cultures having different numbers of eons available you would expect quite a bit of dissimilarity. About as much dissimilarity as the extremes of climate found in the places settled for long-term habitation.
At the same time there could also be some with natural flexibility to adapt to more extremes than others, realistically outside the realm of one extreme or another dominating, but instead for some the ability to adapt is what's extreme enough to be uncommon.
Sometimes maybe even beyond the range of both cold lovers and warm lovers combined.
At the same time there could also be some with natural flexibility to adapt to more extremes than others, realistically outside the realm of one extreme or another dominating, but instead for some the ability to adapt is what's extreme enough to be uncommon.
Sometimes maybe even beyond the range of both cold lovers and warm lovers combined.