The Neolithic (7,000 BCE–3,000 BCE) was a time of intense ecological, technological, and sociological transition. Ecologically, climactic conditions in the Northern Hemisphere were shifting from Ice Age to Global Warming. Warmth in the Northern Hemisphere peaks every 22,000 years and bottoms out 11,000 years after that. Ever since the last glacial maximum (18,000 BCE), the climate had been heating up. Glaciers melted, sea-levels rose, and lands that were once barren and unproductive were now very lush and green (including, for example, the Sahara). Technologically, the process used to make stone tools was shifting from flaking to grinding. Stone tools made with ground edges are smoother, stronger, and more durable than their flaked counterparts, just the kind of tools you would need to cut down the forests for building material or to make room for other endeavors. Sociologically, the lifestyle enjoyed by Stone Age humans was shifting from mobile, egalitarian, clan-based hunting and gathering to sedentary, hierarchical, tribe-based farming, hunting, and herding. It is these three occupations that the “Flood” story…