Under a web of shimmering fire at the far side of the room the table still stood with a body stretched out on it. Here most of the figures were at work on their second-stage Mechandroid, waiting for it to come alive.
“That’s the most important thing that’s happening here now,” Belem said gravely. “I’m needed. I have no time nor mental energy to spare to solve your puzzles for you. Later, if we live, I’ll try.”
He turned swiftly away from me and crossed the big room toward the table. I followed in silence.
The second-stage Mechandroid lay quiet on its table, its eyes, closed, the face serene and not quite human. There was, I thought, a remote familiarity about it too. Belem? I glanced at him, recognizing a likeness but not enough to explain the feeling that I had seen this man before. Man? Machine? Both and either.
“Is he alive yet?” I asked.
“It should take about four days more,” one of the workers answered in English, speaking with mechanical precision. He sounded as if he had learned the language from records, so accurately that he reproduced even the buzz and click of the recording machine.
“He is beginning to think and be alive already, but he will not be finished for four days. Before then our defenses will have gone down, I think. We haven’t enough power to maintain the blocking screens for long.”
“Couldn’t we all go out the way I came in?” I asked.
“We could not take him along. No, it’s impossible. All we can do is defend ourselves as long as we can and hope to finish in time. I doubt if we will,” he added casually.
“The other time a second-stage Mechandroid was attempted,” I said rather tactlessly, “they blew up the whole city, didn’t they? Why don’t they do it now?”
“That was recognized as an error at the time,” Belem told me. “They have improved siege weapons now and they will be curious about our devices. We must do the blowing up ourselves to prevent them when the time comes.”
“But you’ll go right on working until—”
“Naturally.” Belem sounded surprised. “There is a demonstrable mathematical chance that we may succeed. It would be foolish to throw such a chance away. I was set a problem, you see, and I must work to solve it as long as I am able to move and think. This is part of the solution—this second-stage Mechandroid.”
“I should think,” I said with even less tact, “that you’d have a sort of built-in block against making anything really dangerous to civilization.”
“So we have, within limits. This creation will not be basically destructive. Paynter is wrong. Human thinkers are very often wrong. The Man-Machine will endanger only obsolete things that should be destroyed. Humans ignore the obvious fact that machines can evolve exactly as men can. They have evolved.
“What is a city but a machine? Sooner or later it would have been necessary to create a second-stage Mechandroid anyhow. The coming problems will be too complex for solution by either humans or Mechandroids.”
BELEM looked down impassively at the serene sleeping face. Then he turned and walked away with a purposeful stride. I trailed him curiously. We ducked under griders and circled groups of workers who ignored us, reaching at last a rusty wall that opened under Belem’s touch. I looked into the time-worn room of matter-transmission from which I had first glimpsed this scene, On the rusted floor a silver marble lay. That was all.
“It was gold before,” I said stupidly. “Simple transmutation. It’s a tricky pattern of radio-elements.”
“It’s so small,” I said.
“Pick it up.”
I tried. I could easily slip my fingers around it but it wouldn’t budge. It might have been riveted to the floor.
“Nothing—no known force—has power enough to move a negatively-charged activated matrix of this type,” Belem said. “The well-known immovable body.”
“Eh?”
“You know that paradox. What happens when an irresistible force meets an immovable body?”
“But the existence of one automatically negates—”
“That’s just my compensatory humor,” I said. “I’m scared to death, so I’m joking.” He didn’t seem entirely satisfied. Well, neither was I.
I kicked at the thing, and hurt my toes.
I can’t describe that battle because I didn’t understand what was going on. It was probably an epic. I couldn’t tell. Outside the windows the shining wall occasionally sparkled and sometimes bells would ring and the needles on gauges would jump wildly. From outside our protective shell it was probably a more spectacular scene.
Inside there wasn’t even a feeling of tension because the Mechandroids went calmly about their duties and showed no sign of nervousness. Belem got busy on tasks of his own. I wandered around and watched, trying to make myself believe I was a war correspondent. Sometimes I went back and looked into the matter-transmitter at the silver marble. It just lay there.
That was the strange, yet obvious point about this future—I didn’t understand the simplest basic things. I got glimpses of the Galaxy in operation, but I didn’t know why it worked that way. A Neanderthaler legman on the Piltdown Chronicle might have had some similar difficulty in writing a feature story about Oak Ridge so his hairy readers could understand it.
Well, with matter-transmission, you could live on a planet named South Nowhere, right on the edge of the Galaxy at the jumping-off-place, and yet be able to reach out your hand and pick up a California orange, practically fresh off the tree.
Space didn’t mean anything any more, so concepts of thinking based on familiar spatial frames of reference had to change. Except, perhaps, as far as initial exploration went. The first matter-transmitter had to be taken bodily to its destination. After that you could step into a transmitter on earth and step out on South Nowhere.
So, in a war in this time, the trick was to immobilize your opponent. Nail him down—as we were nailed down. After that, just keep pounding.
What we needed was a claw-hammer to pull up that nail.
I had seen enough of this future to begin thinking Galactically. Stray thoughts crossed my mind—random concepts involving yanking Centaurus II out of its orbit, damping on a tractor-beam—what the devil was a tractor-beam?—and letting Centaurus pull up the silver marble, as a tractor pulls a mired car out of the ditch. I mentioned this idea to Belem. He said it was a striking bit of fantasy but not very practical—and what was a tractor-beam?
Discouraged, I sat down and thought some more.
“What makes you think the second-stage Mechandroid can destroy the nekron?” I asked Belem.
HE KEPT working on a cryptic device composed chiefly of vari-colored lenses. His placid face never changed.
“I can only hope so,” he said. “He was designed expressly to solve that problem and he will have a fifty-five-power brain, compared to my twenty-power one. He’ll be a tool—an extension of the social mechanism.”
“With free will?”
“Yes—within obvious limits. He’ll have to fulfil his purpose. He wouldn’t be functional unless he did that.”
“What is his purpose? Besides destroying the nekron?”
“I told you he was an extension. Like the specialized tool of your hand.”
“But I can control my hand.”
“Not always consciously,” Belem pointed out. “If you suddenly found yourself falling your hand would seize the nearest grip. Extend that parallel a bit farther and imagine your hand has a brain of its own.
“It will do—within its limits—what a hand can do best and it would know its potentialities better than you could. And it wouldn’t try to rebel because it’s part of the unit. The second-stage Mechandroid is a better hand for humanity—or a better brain in matters of intellect and logic.”
He turned to his work again, flashing lights on and off at what looked like random. After a moment he went on speaking.
“As for the nekronic matter itself, it may be symbiotic or vampiric. I wonder. Thought and matter are very similar. It
may be that nekronic matter has the potential ability to embody itself provided it finds a suitable host. It’s significant that the creature itself is superficially manlike. Quite possibly it uses whatever prey it feeds on as a pattern from which to shape itself.”
“You think it feeds?”
“You know as much as I about that. Probably more if you were capable of thinking the thing through. We don’t know why the embodied nekronic entity kills. The most obvious solution is to replenish itself, to spread. Even a null-entropy organism might do that, in a sort of reverse pattern from the norm.”
He flashed a blue light thoughtfully and considered the results. So far as I could tell, there had been none but Belem seemed to fall into a minor trance for a few minutes, considering his work.
I was watching a rift like black lightning that ran across the light-wall outside. A red cloud puffed through but the gap healed swiftly and the cloud was dissipated.
Belem twisted a dial, bringing two lenses into sharper focus. “Very likely we’ll never know,” he said. “We can’t last much longer now. A War Council has taken command of this planet.”
“Not Paynter?”
“He’s one of them. That’s odd They’ve outvoted him three times already on the question of attack. He doesn’t want us destroyed—which means he doesn’t want you destroyed.”
“Nice of him,” I said. “After he tried to kill me in the Subterrane.”
“Paralyze, not kill,” Belem corrected.
SILENCE after that, while Belem worked and I watched.
“What would happen if you had time and material enough to make another of those marbles?” I inquired idly, after a while.
“A great deal. Both matrix-weapons—technically they’re electronic matrices—would be negatively charged, and would repel each other. Unfortunately we have neither time nor equipment for that.”
“What you need is a hacksaw to split that marble in two,” I said. “Then they’d both change from immovable bodies to irresistible forces and; shoot each other out of the galaxy. Right?”
“Wrong. Besides being impossible it wouldn’t help. You wouldn’t have two electronic matrices of the same pattern as before. It’s exactly the same reason why the second-stage Mechandroid wouldn’t be dangerous to the social body. The whole is never larger than the sum of its parts, and the sum of the parts always equals the whole.”
“Then you never heard of Banach and Tarski,” I said.
“Who?”
“Once I was assigned to write a feature science story on their experiment. I did plenty of research, because I had to find human interest in it somewhere and it was pure mathematics. The Banach-Tarski paradox, it was called—a way of dividing a solid into pieces and reassembling them to form a solid of different volume.”
“I should remember that,” Belem said, “since I have all your memories. It was only theoretical, wasn’t it?” He searched my memory. I felt uncomfortable as though, under partial anaesthesia, I watched a surgeon investigating my digestive tract.
“Theoretical, sure,” I said. “But I did a repeat on the subject later. It took twenty-three years before somebody figured out how to apply the trick to a physical solid. I forget the details.”
“No you don’t,” Belem said, turning from his work and staring at me. “You have no control over your mind, that’s all. But the information is stored there. Apparently I didn’t get all the details when Paynter searched your memories. There’s a name—Robinson?”
“It could be. I don’t know.”
His face showed no change but I thought I sensed a growing excitement within him. “Cortland,” he said, “I want to enter your mind again. I think—”
CHAPTER XX
Last Defense
APPARENTLY he thought I might object—not that that would have made any difference—for the next thing I knew the quicksilver eyes were growing larger and the next instant they had changed and refocused so that I saw them, as it were, behind my own eyes. I could see the motionless body of Belem standing before me but his face was blanker than ever.
Within my head, he spoke to me. “Remember. It’s all there, in your memory. The right associations will recall it. The unconscious never forgets anything. Robinson. The University of—”
“California,” I thought and something clicked and swung open and I saw a page open before me—a page I had first read thousands of years ago—and the fine print swam into remembered visibility.
“ ‘Professor Raphael M. Robinson of the University of California now shows that it is possible to divide a solid sphere into a minimum of five pieces and reassemble them to form two spheres of the same size as the original one. Two of the pieces are used to form one of the new spheres and three to form the other.
“ ‘Some of the pieces must necessarily be of such complicated structure that it is impossible to assign volume to them. Otherwise the sum of the volumes of the five pieces would have to be equal both to the volume of the original sphere and to the sum of the volumes of the two new spheres, which is twice as great.’ ”
That was all. It wasn’t as much as Belem would have liked—I could feel his impatience and the way he seemed to be shaking my mind over for more details but I couldn’t give him what I hadn’t got. After awhile the metallic mind unlinked from mine and in a moment the motionless figure before me stirred, turned without a word and began making tentative drawings on the corner of a chart convenient upon the wall.
When I asked him questions he told me remotely to go away.
That was how it started. There’s no use in my trying to tell you how it ended. I didn’t understand. It would be ridiculous for me even to pretend I know how it was done in concrete fact before my eyes. But it was done.
Not easily. Not quickly. In fact it came dangerously close to not being done at all, simply because it took so long.
I was able to watch the first stages of Belem’s experiments. He knocked down the problem of lenses and lights upon which he’d spent so much time and began setting up theoretical paradoxes in three dimensions, following the Banach-Tarski geometric plan. I watched him playing with ghostly spheres and angles of light until my head began to ache from following the changing shapes.
What he was attempting was clearly impossible.
I wandered away after awhile and watched the play of lights outside. The display had recently become a lot more spectacular and more interesting to watch but that was not good. Even I could see that, though nobody would answer my questions. The methodical machine-men were not panicky but you could see they had accelerated their pace. They were recognizing the need for hurry.
The second-stage Mechandroid on its table had changed, too. The brilliant neural webbing above it had simplified. Light ran now only in the main channels, letting the finer nerve-wires run very pale, but the synapse-points glowed like stars along the major lines.
And there was a pale glow hanging like a cocoon of radiance low over the motionless figure.
I watched little groups of workers cluster around it, bending their heads together over the table, and I had the impression that they were communicating with their new-born super-kinsman. I even got the idea that he was advising them, for those who left the group went directly to work with a fresh impetus.
It was a little like what must go on in a hive as the workers cluster around the queen-mother.
They were very definitely working against time now—perhaps against hours, even minutes.
IT WAS when the black lightning opened a second rift in the wall of shielding light that the last galvanic spasm of activity before the end stirred the workers to their final tasks.
Another red cloud puffed through the wall where the lightning had ripped it but this time the breach did not close. Instead, a horizontal pillar of red light lengthened through the smoke, unfolding straight toward the laboratory walls.
It was then that a bell rang behind me. The effect was electrifying upon every Mechandroid in the building. Like everyone els
e I turned to stare. Belem was standing back from his work-table, a look of smugness upon his otherwise expressionless face. “This is it,” he said.
Even the crowd around the neural-web table thinned as the workers in the laboratory flocked around him to watch.
He had a sphere about the size of a grapefruit, floating in mid-air above his table. He did things to it with quick flashes of light that acted exactly like knives, in that it fell apart wherever the lights touched, but I got the impression that those divisions were much less simple than knife-cuts would be. The light shivered as it slashed and the cuts must have been very complex, dividing molecules with a selective precision beyond my powers of comprehension.
The sphere floated apart. It changed shape under the lights. I am pretty sure it changed shape in four dimensions, because after a while I literally could not watch any more. The shape did agonizing things to my eyes when I tried to focus on it.
When I heard a long sigh go up simultaneously from the watchers I risked a look again.
There were two spheres floating where one had floated before.
“Amoebas can do it,” I said. “What’s so wonderful about reproduction by fission?”
“Don’t bother me,” Belem said, “But get ready to leave when I give the word. There isn’t much time left.” He cast a worried glance at the window.
All over the enormous room an orderly withdrawal was in progress. They had taken down the neural webbing over the big table and were setting up a lower webbing on the table itself, just within the radiation of that cocoon of light. I could see now that the table was no longer supported on legs but floated free of the floor. They were ready to move it, obviously, which must mean that matter-transmission was about to resume operation.
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