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the agglomeration of US farms, which started out – except in the southern plantation belt – as much smaller units in the early nineteenth century when the country was opened up by immigrants, is the story of gradually rising labour costs and the consequent pressure for mechanisation over two centuries.
How Asia Works
Joe Studwell
It’s easy to recognize two reasons why my impression that New Guineans are smarter than Westerners may be correct. First, Europeans have for thousands of years been living in densely populated societies with central governments, police, and judiciaries. In those societies, infectious epidemic diseases of dense populations (such as smallpox) were historically the major cause of death, while murders were relatively uncommon and a state of war was the exception rather than the rule. Most Europeans who escaped fatal infections also escaped other potential causes of death and proceeded to pass on their genes. Today, most live-born Western infants survive fatal infections as well and reproduce themselves, regardless of their intelligence and the genes they bear. In contrast, New Guineans have been living in societies where human numbers were too low for epidemic diseases of dense populations to evolve. Instead, traditional New Guineans suffered high mortality from murder, chronic tribal warfare, accidents, and problems in procuring food. Intelligent people are likelier than less intelligent ones to escape those causes of high mortality in traditional New Guinea societies. However, the differential mortality from epidemic diseases in traditional European societies had little to do with intelligence, and instead involved genetic resistance dependent on details of body chemistry. For example, people with blood group B or O have a greater resistance to smallpox than do people with blood group A. That is, natural selection promoting genes for intelligence has probably been far more ruthless in New Guinea than in more densely populated, politically complex societies, where natural selection for body chemistry was instead more potent. Besides this genetic reason, there is also a second reason why New Guineans may have come to be smarter than Westerners. Modern European and American children spend much of their time being passively entertained by television, radio, and movies. In the average American household, the TV set is on for seven hours per day. In contrast, traditional New Guinea children have virtually no such opportunities for passive entertainment and instead spend almost all of their waking hours actively doing something, such as talking or playing with other children or adults. Almost all studies of child development emphasize the role of childhood stimulation and activity in promoting mental development, and stress the irreversible mental stunting associated with reduced childhood stimulation. This effect surely contributes a non-genetic component to the superior average mental function displayed by New Guineans.
Guns, Germs, and Steel
Jared Diamond
It was inaccurate to say that the receipt of the extra-Trisolaran message had no influence on his life. After confirmation, Trisolaris would surely reduce the number of listening posts. And posts like this one, behind the times, would be among the first to be cut. Then he would be unemployed. A listener’s skills were very specialized, consisting only of some routine operations and maintenance. It would be very difficult to find another job. If he couldn’t find another job within five thousand Trisolaran hours, he would be forcibly dehydrated and then burnt. The only way to escape this fate was to mate with a member of the opposite sex. When that happened, the organic material making up their bodies would meld into one. Two-thirds of the material would then become fuel to power the biochemical reaction that would completely renew the cells in the remaining one-third and create a new body. Then this body would divide into three to five tiny new lives: their children. They would inherit some of the memories of their parents, continue their lives, and begin the cycle of life anew. But given the listener’s low social position, lonely and enclosed workspace, and advanced age, what member of the opposite sex would be interested in him? In the last few years, the listener had asked himself millions of times: Is this all there is to my life? And millions of times he had answered himself: Yes, this is all there is. All that you have in this life is the endless loneliness in the tiny space of this listening post. He couldn’t lose that paradise, even if it was only in a dream.
The Three-Body Problem
Cixin Liu and Ken Liu
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