Selected Works (in chronological order)
The spread of farming from those few sites of origin usually did not occur as a result of the hunter-gatherers’ elsewhere adopting farming; hunter-gatherers tend to be conservative…. Instead, farming spread mainly through farmers’ outbreeding hunters, developing more potent technology, and then killing the hunters or driving them off of all lands suitable for agriculture.
The shift from hunting-gathering to farming began only about 11,000 years ago; the first metal tools were produced only about 7,000 years ago; and the first state government and the first writing arose only around 5,400 years ago. “Modern” conditions have prevailed, even just locally, for only a tiny fraction of human history