make no mistake: the videos we put on for our kids—or the video games we pull up on our phones in our own moments of boredom—are designed, unconsciously or consciously, to produce a bewitching effect. And that effect is achieved by filling a screen with a level of vividness and velocity that does not exist in the real world—or only very rarely. Because it is rare, we instinctively respond to it, and indeed take delight in it.