The microspheres developed by New Wave were one four-thousandth the size of a microchip. Each was imprinted with a quarter-million circuits. This had been achieved by the application of a radically new form of X-ray lithography that made it possible to etch circuits on amazingly small surfaces and without having to hold those surfaces perfectly still.
Conversion of Old People into New People began with the injection of hundreds of thousands of these microspheres, in solution, into the bloodstream. They were biologically interactive in function, but the material itself was biologically inert, so the immune system wasn’t triggered. There were different kinds of microspheres. Some were heart-tropic, meaning they moved through the veins to the heart and took up residence there, attaching themselves to the walls of the blood vessels that serviced the cardiac muscle. Some spheres were liver-tropic, lung-tropic, kidney-tropic, bowel-tropic, brain-tropic, and so on. They settled in clusters at those sites and were designed in such a way that, when touching, their circuits linked.
Those clusters, spread throughout the body, eventually provided about fifty billion usable circuits that had the potential for data processing, considerably more than in the largest supercomputers of the 1980s. In a sense, by injection, a super-supercomputer had been put inside the human body.
Moonlight Cove and the surrounding area were constantly bathed in microwave transmissions from dishes on top of the main building at New Wave. A fraction of those transmissions involved the police computer system, and another fraction could be drawn upon to power-up the microspheres inside each of the New People.
A small number of spheres were of a different material and served as transducers and power distributors. When one of the Old People received his third injection of microspheres, the power spheres at once drew on those microwave transmissions, converting them into electrical current and distributing it throughout the network. The amount of current needed to operate the system was exceedingly small.
Other specialized spheres in each cluster were memory units. Some of those carried the program that would operate the system; that program was loaded the moment power entered the network.
To Watkins, Shaddack said, “Long ago I became convinced that the basic problem with the human animal is its extremely emotional nature. I’ve freed you from that burden. In so doing, I’ve made you not only mentally healthier but physically healthier as well.”
“How? I know so little of how the Change is effected.”
“You’re a cybernetic organism now—that is, part man and part machine—but you don’t need to understand it, Loman. You use a telephone, yet you’ve no idea of how to build a phone system from scratch. You don’t know how a computer works, yet you can use one. And you don’t have to know how the computer in you works in order to use it, either.”
Watkins’s eyes were clouded with fear. “Do I use it … or does it use me?”
“Of course, it doesn’t use you.”
“Of course …”
Shaddack wondered what had happened here tonight to have put Watkins in such a state of extreme anxiety. He was more curious than ever to see what was in the bedroom at the threshold of which they had halted. But he was acutely aware that Watkins was in a dangerously excited state and that it was necessary, if frustrating, to take the time to calm his fears.
“Loman, the clustered microspheres within you don’t constitute a mind. The system’s not in any way truly intelligent. It’s a servant, your servant. It frees you from toxic emotions.”
Strong emotions—hatred, love, envy, jealousy, the whole long list of human sensibilities—regularly destabilized the biological functions of the body. Medical researchers had proved that different emotions stimulated the production of different brain chemicals, and that those chemicals in turn induced the various organs and tissues of the body to either increase or reduce or alter their function in a less than productive fashion. Shaddack was convinced that a man whose body was ruled by his emotions could not be a totally healthy man and never entirely clearthinking.
The microsphere computer within each of the New People monitored every organ in the body. When it detected the production of various amino-acid compounds and other chemical substances that were produced in response to strong emotion, it used electrical stimuli to override the brain and other organs, shutting off the flow, thus eliminating the physical consequences of an emotion if not the emotion itself. At the same time the microsphere computer stimulated the copious production of other compounds known to repress those same emotions, thereby treating not only the cause but the effect.