Schoen has talked himself up into a disturbingly heavy sweat, now, and is almost bodily flinging himself into a historical overview of the science of CRYPTOLOGY, as the union of cryptography and cryptanalysis is called. There’s some talk about an English fellow name of Wilkins, and book called Cryptonomicon that he wrote hundreds of years ago, but (perhaps because he doesn’t rate the intelligence of his audience too highly) he goes very easy on the historical background, and jumps directly from Wilkins to Paul Revere’s "one if by land, two if by sea" code. He even makes a mathematics in-joke about this being one of the earliest practical applications of binary notation. Lawrence dutifully brays and snorts, drawing an appalled look from the saxophonist seated in front of him.