In the affluent world, we stalk Froot Loops, buffalo wings, and chicken nuggets rather than fruit, buffalo, and wild fowl. Most of our foods are rich in calories, and the time, effort, and monetary costs involved in acquiring and preparing them have drastically declined. If we apply OFT to this situation, it becomes clear that we’re surrounded by an enormous variety of extremely valuable foods—foods that are an outstanding deal because they deliver a large number of calories and cost very little. Despite the fact that we live in a radically different environment than a hunter-gatherer, our
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