"There are people in the world all the time who know" the professor said. "But they keep quiet. They just move about quietly, saving the people who know they are in the trap. And then, for the ones who have got out, it's like coming around from chloroform. They realize that all their lives they've been asleep and dreaming. And then it's their turn to learn the rules and the timing. And they become the ones to live quietly in the world, just as human beings might if there were only a few human beings on a planet that had monkeys on it for inhabitants..."