“We find attractive,” says Miller, “those things that could have been produced only by people with attractive, high-fitness qualities such as health, energy, endurance, hand–eye coordination, fine motor control, intelligence, creativity, access to rare materials, the ability to learn difficult skills, and lots of free time.”32 Artists, in turn, often respond to this incentive by using techniques that are more difficult or demanding, but which don’t improve the intrinsic properties of the final product. “From an evolutionary point of view,” writes Miller, “the fundamental challenge facing
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