As for Enypt, well what can I say, they were advanced when looked from the standpoint of hunter-gatherers but quite backward from our modern standpoint ;-) but I respect your views.
Ummm....backward in what sense, exactly? How exactly do you think modern people are more 'advanced'?? Outside of some technologies.
You are aware that the concept of "social evlution" is rejected by social science now, right?
For that matter...how are foraging societies (formerly known as hunter-gatherers) more backward thatn ancient Egyptians? You've never heard of the 'original affluent society' argument? Modern foragers, even when pushed by more powerful agricultural (or otherwise modern) societies to the very edges of livable ecosystems only spend a couple of hours a day 'working'...hardly "living by the sweat of their brow". Course, they consider grubs and other such things edible but most, when interviewed after being forced into 'modern' society, remember 'the good old days' when they were still foragers and lived better and worked less.
(fresh minted MAs in anthropology know all this stuff )