the stone was full of potential energy—potential energy, the names we give things!—and how when the stone is dropped all that potential energy gets converted into motion, into kinetic energy, action, something like that. And that transformation, potential energy into motion, is what makes stones powerful, terrible, how they can crush people. Sometimes I feel like that, like I’m walking around all stuffed up with potential energy, a stone hanging in the air with no knife sharp enough to cut the rope.
