“It was funny, Grey thought. Not funny ha-ha, but funny strange, the whole idea of time. He'd thought it was one thing but it was actually another. It wasn't a line but a circle, and even more; it was a circle made of circles made of circles, each lying on top of the other, so that every moment was next to every other moment, all at once. And once you knew this you couldn't unknow it. Such as now the way he could see events as they were about to unfold, as if they'd already happened, because in a way they had.”