The principles of connectivity state that as a system makes more connections to other parts of itself, the connectivity of that system increases in an exponential fashion to staggering levels. The subway under Boston had been growing in complexity for years. It was so complex, in fact, that the best mathematicians could not calculate its connectivity.
Then the first train disappeared. The system was closed, so it couldn't have gone anywhere, but when all the trains were pulled, they still couldn't find it. The searchers would see a red light, wait curiously, and hear a train passing in the distance, sometimes so close that it appeared to be just around the next bend. Where was the train? What happened to the passengers? Professor Tudor has a theory.
