"Wolf, take a look at this." Jimmy picked up one of the baseballs that had squirted under the batting cage's canopy. He held it under a small lamp built into the batting cage. As he rotated it slowly, I saw a purplish grid play like faerie light over its white horsehide. On the helmet's faceplate I saw a nearly life-size simulacrum of the ball, complete with grid, track along with the ball's movement.