"Vilayanur Ramachandran, of the Center for Research on Brain and Cognition in San Diego, California, has a competing metaphor for who's the boss. Slightly stooped, dark-featured and serious, he gesticulates energetically and paces sometimes while he speaks. He says the left hemisphere is like a general who planned a battle using conventional weapons, and the right hemisphere is like a scout who provided an update to the general right before battle1. "The report said that the enemy had nuclear weapons. The general would be very foolish, if he adhered to the original plan. He must now abandon his previous plan and formulate a new one, for the consequences, if the scout is correct, are just too great." "