[powderhorn]

Well, Phoenicians have lived in North Africa for several millennia by now -- a period of time comparable to that from the initial alleged exodus. How come no poeple seem to develop Negroid features because it lives in Africa after migrating from elsewhere?

"Several millennia" is just a speck of time compared to 80,000 years. And "environment" is not just geographical location. Environment is all of the factors that existed at a certain period of time: desease, weather, air quality, competition with other species, etc., etc., etc.,....

If Africa had been empty of people, and a group from say, Europe or America migrated there in our current time, there would be no way to predict how they would turn out 80,000 years from now. There would be just too many factors to consider in their environment.

[TopQuark]

"Several millennia" is just a speck of time compared to 80,000 years. Sorry, just the opposite is true, and that was my point: eight millennia is 10% of 80,000 years, and that is no "speck." Even 1,000 is the same proportion as one year of your life. That is not a negligible amount.

And "environment" is not just geographical location. Environment is all of the factors that existed at a certain period of time: desease, Sorry, you appear to be confusing the endogenous and exogenous features: a desease is that of a population, it is endogenous thus and not a part of the environment.

weather, air quality, are most certainly parts of geography.

competition with other species, the same, if you consider geography in a broad sense, as it has been done for decades now.

etc., etc., etc.,.... So, besides these "etc." and a few misused quasi-scientific words, what did you really say in your post?