
A few weeks ago I listened to an episode of This American Life with an unfortunate title: Batman.[1] The title, which really doesn’t set the right tone for the episode to follow, refers to Daniel Kish, a blind man who taught himself to echolocate as a child. He gets around the world relatively unaided (including, for example, riding a bike) by clicking and then listening to the echoes. This ability has made him world famous, but it really shouldn’t be so unusual. And perhaps the most chilling thing is the fact that most blind kids will intuitively start clicking or snapping or stamping to test out their environment with sound. But they are so often discouraged that they never get the chance to develop their skill to the level Daniel did. They are discouraged, of course, because clicking or snapping repetitively isn’t conducive with normal social expectations. Thus far the tale is sad, but it is not unusual. The idea that social conventions can be repressive isn’t unusual. But it’s not just the freedom to break with social convention that allowed Kish to develop his talent. It was also having a mother who, in ways that seem cruel or uncaring, treated Kish more or less as though he could see even though he couldn’t. Kish says: From the fifth grade on, I walked to school almost every day. I had to cross major streets. I participated in extracurricular activities. I made my own breakfast. I…