[Age of Reason]

Overpopulation is a liberal myth.

The moment mankind became too many to exist directly off nature by hunter gathering in a congenial climate, mankind became over populated.

And it hasn't gotten any less crowded since.

[Modernman]

The moment mankind became too many to exist directly off nature by hunter gathering in a congenial climate, mankind became over populated.

That's a strange definition. There is nothing "unnatural" about humans farming. As the old saying goes, Hoover Dam is just as natural as a beaver dam.