QUOTE : In Newtonian physics, the connection between ping and pong appears mechanical and deterministic (A pushes and B gets pushed, etc.); in thermodynamics, the connection appears mechanical and statistical (when enough A's bounce around enough, they will hit enough B's to get the B's bouncing, too); in electromagnetism, the connection appears as the intersection or interaction of fields; in Relativity, the connection appears as a result of the curvature of space (which we call "gravity"); but the correlation, in any case, involves some sort of connection.