"If we generally like the way things are now, we must also ask whether our current situation is really so different from the open ages of radio, film, or the telephone. Might it not also have seemed in those times that the orgy of limitless entrepreneurism would never end? The point is that we are near the high end of a pendulum arc that, so far, has aways begun to swing in the opposite direction -toward greater integration and centralization- with a force that can seem inexorable."