Psychologically as well as physically, there are no longer any remote places on Earth. When a friend leaves for what was once a foreign country, even if he has no intention of returning, we cannot feel that same sense of irrevocable separation that saddened our forefathers. We know that he is only hours away by jet liner, and that we have merely to reach for the telephone to hear his voice. And in a very few years… we will be able to see friends on the far side of the Earth as easily as we talk to them on the other side of the town. Then the world will shrink no more, for it will have become a dimensionless point.