We know how ninety-nine percent of the universe works," he told Carter shortly after they met, "and that's the clockworks, that's what we build with. But the other one percent makes the clockworks wind down. That's inertia. No one knows how that works, but it does. It's that one percent mystery that's the way of our maker. Put everything together, energy and inertia, the explicable and the inexplicable, and that's how you and I make our living.