The central thesis of this extraordinary little book is that civilization is a pyramid scheme in which the people of the present rob from the people of the future. Like bacteria in a petri dish of nutrients, people multiply until they have overrun and despoiled their resources, and then the population crashes. Historian and novelist Ronald Wright (not to be confused with Robert Wright, author of e.g., The Moral Animal) explores in some fascinating detail examples as ancient as Sumer and as recent as Easter Island and the Americas.
The main resource is arable land which soon or late becomes exhausted. We exhaust the soil with continual planting, or we irrigate the soil until the salt content becomes so high that crops will not grow on it, and then we abandon it to the winds and move on. Or we pave it over with roads and buildings. There are exceptions of course, China and Egypt have maintained continuous civilizations for several millennia, but Wright argues they were able to do this because in the case of Egypt, the Nile continually revitalized the soil and prevented the Egyptians from building on it because of the yearly floods. In the case of China he argues that it was a fortuitous circumstance that allowed the Chinese to grow crop after crop on the same land for century after century because the land had topsoil hundreds of meters thick, blown there by ancient winds. Exhaust one layer, let it blow away. No problem, the next layer is fertile. Not so almost anyplace else in the world.
Wright begins before agriculture, which would be before civilization of course. The hunters and gathers of the Upper Paleolithic period, Wright avers, killed off their way of life in "an all-you-can-kill wildlife barbecue." He explains, "The perfection of hunting spelled the end of hunting as a way of life. Easy meat meant more babies. More babies meant more hunters. More hunters, sooner or later, meant less game." (p. 39) The mastodons, the giant bison, the giant sloth, the great herds of horses...they constituted the nutrients of the petri dish, and the hunters the bacteria.
We are aware that this happened in North America. We have found the bones. And it happened in Russia where great dwellings were constructed from the tusks and bones of the woolly mammoth, hunted to extinction. But Wright points out that this happened in western Europe as well. The cave paintings of the Cro-Magnons "falter and stop. Sculptures and carvings become rare. The flint blades grow smaller, and smaller. Instead of killing mammoth they are shooting rabbits." He adds that the hunters at the end of the Old Stone Age "broke rule one for any prudent parasite: Don't kill off your host. As they drove species after species to extinction, they walked into the first progress trap." (pp. 39-40)
Progress as a trap--that is also Wright's thesis. With the discovery of agriculture and the rise of civilizations, were people better off? Wright answers in the negative, calling agriculture and civilization "a series of seductive steps down a path leading, for most people, to lives of monotony and toil." (p. 47) Elsewhere Wright points out that the bodies of people living in the first agricultural societies were stunted and there was more evidence of malnutrition compared to the bodies of the hunters and gathers. (Too much reliance on a monoculture starchy diet can do that.) They were also smaller in stature, and according to some recent ideas, not as smart. We are domesticated animals. We have domesticated ourselves. (Or, our staple crops have domesticated us.) Domesticated animals are not as smart as wild ones. So it is said.
Wright goes on to cite the experience of the Maya whose civilization collapsed as did that of Sumer and for much the same reasons. He writes, "As the crisis gathered [the crop failures], the response of the rulers was not to seek a new course... No, they dug in their heels and carried on doing what they had always done, only more so. Their solution was higher pyramids, more power to the kings, harder work for the masses, more foreign wars. In modern terms, the Maya elite became extremists, or ultra-conservatives, squeezing the last drops of profit from nature and humanity." (p. 102) Compare this to the infamous story of Easter Island. Almost exactly the same thing happened.
Wright applies this scenario to the modern world. He calls the invention of agriculture "a runaway train, leading to vastly expanded populations but seldom solving the food problem because of two inevitable (or nearly inevitable) consequences. The first is biological: the population grows until it hits the bounds of the food supply. [Which is what is happening today.] The second is social: all civilizations become hierarchical; the upward concentration of wealth ensures that there can never be enough to go around." He adds that the Chinese have an illustrative saying, "A peasant must stand a long time on the hillside with his mouth open before a roast duck flies in." (p. 108)
Referring to the United States, Wright calls our prosperity (the greatest in human history, by the way), a "two-century bubble of freedom and affluence." We tend to think of it as normal and even inevitable, but he calls it "an anomaly: the opposite of what usually happens as civilizations grow. Our age was bankrolled by the seizing of half a planet, extended by taking over most of the remaining half, and has been sustained by spending down new forms of natural capital, especially fossil fuels." (p. 117)
Wright's is an eloquent and persuasive argument. You don't want to miss this book. It is an outstanding piece of work, beautifully written.