Not long ago, I received a very angry letter from an old friend. It was a response to my suggestion that liberal arts colleges might give students some instruction in technology; that is, give them some feeling for how the world they are living in works. My friend’s argument was that, from the Love Canal to Three Mile Island, and from the grid locks of Manhattan to the boeuf bourguignon on the plastic airline trays, the technological world was not working very well and never would. To explain its necessary malfunctions to the young would do no more than contaminate the view of things put forward in the Platonic Dialogues, Restoration comedies, and whatever other subjects undergraduates were studying these days. The fact was, so the argument ran, that while technological advance increased the Gross National Product and created a glut of creature comforts, it worked inevitably against decency and our saving graces. The thing to do was to stay as far away from it as possible.