If you were to regularly air-drop Cheetos over the entire territory of a game preserve, you would probably find that all the herbivores preferred them right away to whatever pathetic grubs and roots they had been eating before. A few years later, the lions would have decided that hunting is not only barbaric but, worse, inconvenient. The cheetahs would come around eventually—all that running!—and the savannah would be ruled by three-toed sloths. With orange fur. I recently visited Las Vegas, a place designed for the single purpose of separating you from your money—by tapping into your
...more
