“And in this year of 1Q84, there are two moons in the sky, aren’t there?” “Correct: two moons. That is the sign that the track has been switched. That is how you can tell the two worlds apart. Not that all of the people here can see two moons. In fact, most people are not aware of it. In other words, the number of people who know that this is 1Q84 is quite limited.”
