Wittgenstein, the philosopher, distinguished two methods of communication and representation: “saying� and “showing.� Saying, in the sense of propositionizing, is assertive and requires a tight coupling of logical and syntactic structure with what it asserts. Showing is not assertive; it presents information directly, in a nonsymbolic way, but, as Wittgenstein was forced to concede, it has no underlying grammar or syntactic structure.
