Chapter 2“Space-Time Harmonics,” Janet said, squinting into the lights, her voice echoing from the back of the auditorium, “allows us to bend the space-time fabric between two points and open a doorway between them. When first deployed forty years ago, doorports altered the fabric of our society. Planes, trains, and automobiles suddenly became obsolete. In less than ten years, the United States changed its primary mode of travel from hydrocarbon-powered vehicles to electricity-powered doorports, and the industrialized world is now but a few steps behind us. Doorports line our streets. Instead of cars in our garages, we now have three to five doorports each. Our houses used to be valued in part on how many cars fit in the garage. Now, it's doorports. “But even that may become superfluous.