I've often wondered if 20th century cars were designed with human faces -- headlights for eyes and a grille and bumper forming a mouth-- or whether people have an inclination to graft their own features on any machinery remotely resembling themselves. One of my earliest television memories involved an animated character named Otto the Auto, spokescar for the American Automobile Association. The talking grille and googly headlight eyes seemed such a perfectly natural fit that I never questioned it. Psychologists have backed this up. Of all animals, human beings have the strongest desire to identify familiar faces where none exist....