A classic piece from 1999. Central idea: 20th century an aberration in following a broadcast, rather than interactive model. "We are natural villagers. For most of mankind’s history we have lived in very small communities in which we knew everybody and everybody knew us. But gradually there grew to be far too many of us, and our communities became too large and disparate for us to be able to feel a part of them, and our technologies were unequal to the task of drawing us together. But that is changing."