Ehh, this is just factually wrong and discounts the histories of Europe and e.g. Africa in such a grand way that it's hard to even know where to start. If you w

Ehh, this is just factually wrong and discounts the histories of Europe and e.g. Africa in such a grand way that it's hard to even know where to start. If you wanted to restrict your claim to something like "nations have memetic characteristics that often follow from genetic lineage that don't make membership in that nation strictly genetic" then I'd be inclined to agree. But back to the point, sup-replacement levels of natural population growth is a recent phenomenon and it's hard to say what comes next - since we don't have any perfectly analogous historical parallels.