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The best art divides the audience. If you put out a record, and half the people who hear it absolutely love it, and half the people who hear it absolutely hate it, you’ve done well, because it’s pushing that boundary.”

Tools of Titans

Timothy Ferriss

Chang stood up and walked over to the insignia, where he addressed the assembled officers with words they would remember for the rest of their lives: “Comrades, the space force has a tough road ahead of it. Initial predictions see basic research taking at least fifty years across all disciplines, with at least another hundred years before practical use of the technology required for large-scale space travel becomes possible. Then, after its initial construction, the space fleet will require another century and a half to achieve its planned scale. That means that full combat capacity will take the space force three centuries from its establishment. Comrades, I’m sure you all understand what that means. None of us sitting here will make it to space, much less have the chance to see our space fleet, and we may not even see a credible model of a space warship. The first generation of officers and crew won’t be born until two centuries from now, and two and a half centuries from that, Earth’s fleet will meet the alien invaders. Aboard those ships will be the fifteenth generation of our grandchildren.” The assembly fell into a prolonged silence. Ahead of them stretched the leaden road of time, terminating somewhere in the mists of the future, where all they could see were flickering flames and luster of blood. The brevity of a human lifespan tormented them as never before, and their hearts soared above the vault of time to join with their descendants and plunge into blood and fire in the icy cold of space, the eventual meeting place for the souls of all soldiers.

The Dark Forest

Cixin Liu

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

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