Let’s say you’re the boss of a big, complex company. President Brain is your name.
You’re trapped in a small, dark room with no windows or doors. How would you find your workers? How would you tell them what to do? How would you know what to do? Disaster could be at hand, and you’d be clueless!
If you were a real brain, you’d run phone lines (nerves) into every inch of the company. They’re your link—your only link—to your workers (the rest of the body). Next, you’d hire scouts and messengers. The scouts are eyes, ears, a nose, a mouth, and skin. They’re anything that can tell what’s going on outside your company. And the messengers? These speedsters tear along the wires to bring you reports from the scouts. They take your orders to folks who can carry them out.
One last thing: Every message has to pass through you. That way, there are no slip-ups. For example, suppose your eye scouts report that you’re standing at a window. And your right-hand assistant decides on its own to throw a baseball. Can’t happen. You’re the boss. You get all the reports. You give all the orders.
