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Chapter 7. The Thud Of One Dropped Shoe

Janet could hardly believe her ears. What kind of a way is that to greet someone you havent seen in years?

Derec looked properly sheepish. He also looked as if hed slept in his clothing and hadnt bothered to look in a mirror before hed left the apartment. One lock of hair stuck straight out from his right temple.

Sorry, he said. Hello, Mother. Ive missed you. Hows Dad? He looked through the window, but before Janet could answer him he lost his sheepish look and said, Looks like hell live. But without a power pack Lucius wont last more than an hour or so. Ive got to get enough power to his brain to keep him going or well lose the chance to find out what made him do this.

Janet couldnt suppress a grin. He sounded just like his father. Or maybe like herself, she admitted, if shed been thinking a little more clearly.

Ariel wasnt as amused. Robots, robots, robots! Is that all you can think about? she nearly screamed at him.

Theres more to life than robots!

Derec shook his head, but Janet could see the determination in his eyes. No, thats not all I think about. Its just that this happens to be about the most important thing to happen in the entire history of robotics. If we lose this chance to study it, we may never get another.

Derecs right, Janet said. If I hadnt been so rattled Id have thought of it myself. Basalom, where-

The robot at Ariels side interrupted. I do not think it would be wise to revive him. He is dangerous.

I agree with Mandelbrot, the wolflike learning machine beside him said. Much as we regret the loss of our companion, his experiences have damaged him beyond repair. It would be best to let his pathways randomize.

Janet looked at the old, Ferrier-model robot. Mandelbrot? Shed thought shed heard that name shouted earlier. Could this be the one? It seemed impossible, but he did have a dianite arm

Maybe so, Derec said, but not until I get a recording of them first. Now where is his body?

In the lab next door, said Mandelbrot.

Great. Derec turned to go, but stopped and looked at Janet again. I, uh, could probably use your help if you want to come along.

She felt the tension in the room ease slightly. She looked from him to Ariel to Wendell in the operating room, wondering if she should go. She didnt want to leave Wendell, but the medical robot had given him a general anesthetic in order to stop him from thinking about his injury, so it really made no difference to him. Going with Derec, on the other hand, might matter to him. A little stunned that she might actually care about what either of them felt, or that she might feel something herself, she said, I dont think Im doing anyone any good here, so sure, why not?

Ill stay here, Ariel said.

Janet couldnt tell if she meant that angrily or helpfully. She didnt suppose it mattered much; the same response would work for either case. Thank you, she said, and let Derec lead her from the room.

Basalom followed along, as did the two learning machines. They found the remains of the third, Lucius, resting like a battered starfish on the floor just inside the door to the lab. It looked as if part of the battle had gone on in there as well, but Derec, stepping over Luciuss body, said, 1 guess I forgot to clean up. Central, fix these exam tables, please. And go ahead and reabsorb the loose cells on the floor. All but what belongs to Lucius, of course.

The sandy grit surrounding the pedestals on the floor sank into the surface, and the pedestals simultaneously grew taller and spread out at the top to form three separate exam tables. Janet nodded to Basalom and said, Go ahead and put him on one. Then go out and scrape up what you can from outside.

Basalom lifted Lucius easily with his one remaining hand and deposited him on the middle table, then left the room. The Ariel-shaped learning machine went with him. Janet was itching to speak with one of the learning machines, but she supposed there would be time for that later. She was itching to speak with Derec as well, but he was already absorbed in the task of hooking up a variable power supply and a brain activity monitor to Lucius.

She supposed she could be helping with that, at least. She walked over to stand across the exam table from him and said, Plus and minus five volts will do for his memories. If you hold it at that, he shouldnt wake up, and even if he does, hell still be immobilized because the body cells take twenty volts before they can move.

Derec nodded. The stray hair at his temple waved like a tree limb in a breeze. Good, he said. Any special place I should attach the leads? The few times Ive worked on these guys, Ive just stuck stuff anywhere and let the cells sort it out, but I wasnt sure if that was the best way.

Janet couldnt resist reaching out and brushing his hair down. He looked surprised at first, then smiled when he realized what she was doing.

Anywhere is fine, she said. When I designed the cells, I gave them enough hard wiring to figure out what to do with all the various types of input they were likely to get.


She watched Derec clip the power supplys three leads to the ends of three different arms, then turn up the voltage to five. He then took the brain monitors headphone-shaped sensor and moved it over the robots unconventional body, searching for its positronic brain. The monitor began to beep when he reached the base of one of the arms, and he wedged it in place with one pickup underneath and one on top.

The monitor flickered with sharp-edged waveforms, hundreds of them joining to fill the screen until it was a jumble of multicolored lines. Looks like we caught him in time, Derec said. There seems to be quite a bit of mental activity. He reached up and switched in a filter, and the jumble diminished to a manageable half-dozen or so waveforms. They werent actual voltage traces, but rather representations of activity in the various levels of the brain, useful for visualizing certain types of thoughts.

Janet frowned. Are those supposed to be the Three Laws?

Thats right.

The pattern was still recognizable as the one built into every positronic brain at the time of manufacture-but just barely. Each of the laws showed in a separate hue of green, but overlaying them all were two companion waves, a deep violet one that split and rejoined much as the Three Laws did, and a lighter blue one weaving in and out around the laws and linking up with other signals from all over the screen. The effect looked as if the violet and blue waves were purposefully entangling the laws, preventing them from altering their potential beyond carefully delineated levels. Janet suspected that was just what they were doing. Visual analogy didnt always work in describing a robots inner workings, but in this case it looked pretty straightforward.

Id say that explains a lot, she said.

Derec flipped to another band, following the two waves as they wove from the Three Laws through the self-awareness section and into the duty queue. Looks like hes built a pretty heavy web of rationalization around just about all the pre-defined areas of thought, he said. Normal diagnostic procedure would be to wake him up and ask him what all that means, but I dont think we want to do that just yet. Adam, you know how he thinks; can you make sense of it?

The one remaining learning machine stepped over to Derecs side. Adam? Had he known the significance of that name when he chose it, or had it been given to him? Janet supposed the other one would be Eve, then. And this one, the renegade, was Lucius. Why hadnt he gone for the obvious and called himself Lucifer? She itched to ask them. She had to talk with them soon.

In answer to Derecs question, Adam said, The violet potential schematic corresponds to the Laws of Humanics. The blue one is the Zeroth Law of Robotics.

Beg your pardon? Janet asked. Laws of Humanics? Zeroth Law? What are you talking about?

Her learning machine looked over at her and said, We have attempted to develop a set of laws governing human behavior, laws similar to the ones that govern our own. They are, of course, purely descriptive rather than compulsory, but we felt that understanding them might give us an understanding of human behavior which we otherwise lacked. As for the Zeroth Law, we felt that the Three Laws were insufficient in defining our obligations toward the human race in general, so we attempted to define that obligation ourselves. I

Janet was careful not to express the joy she felt, for fear of influencing the robot somehow, but inside she was ecstatic. This was perfect! Her experiment was working out after all. Her learning machines had begun to generalize from their experiences. And what did you come up with? she asked.

Bear in mind that these laws describe potential conditions within a positronic brain, so words are inadequate to describe them perfectly; however, they can be expressed approximately as follows. The First Law of Humanics: All beings will do that which pleases them most. The Second Law of Humanics: A sentient being may not harm a friend, or through inaction allow a friend to come to harm. The Third Law of Humanics: A sentient being will do what a friend asks, but a friend may not ask unreasonable things. He paused, perhaps giving Janet time to assimilate the new laws meanings.

Not bad. Not bad at all. Like hed said, they certainly werent compulsory as far as most humans went, but Janet doubted she could have done any better. And what is your Zeroth Law? she asked.

That is much more difficult to state in words, but a close approximation would be that any action should serve the greatest number of humans possible. Adam nodded toward Lucius. Lucius has taken the Law a step farther than Eve or I, and we believe it was that step which led him to do what he did to Dr. Avery. He believes that the value of the humans in question should also be considered.

Eve. Shed guessed right. And you dont?

Adam raised his arms with the palms of his hands up. It took Janet a moment to recognize it as a shrug, since shed never seen a robot use the gesture before. Adam said, I amuncomfortable with the subjectivity of the process. I had hoped to find a more definite operating principle.

But Lucius is satisfied with it.

That seems to be the case.

Why do you suppose he is and you arent?

Because, Adam said, again hesitating. Because he believes himself to be human.

If the robot were hoping to shock her with that revelation, he was going to be disappointed. Janet had expected something like this would happen from the start; indeed, in a way it was the whole point of the experiment. She waited patiently for the question she knew was coming.

Adam didnt disappoint her. He looked straight into her eyes with his own metallic ones and said, Each of us has struggled with this question since we awakened, but none of us have been able to answer it to our mutual satisfaction. You created us, though. Please tell us: are we human?

Janet used the same palms-up gesture Adam had used. I dont know. You tell me.

Adam knew the sudden surge of conflicting potentials for what it was: frustration. He had experienced enough of it in his short life to recognize it when it happened. This time the frustration came from believing his search for truth was over and suddenly finding that it wasnt.

He felt a brief Second Law urge to answer her question with a simple declarative statement, but he shunted that aside easily. She obviously wanted more than that, and so did he. She wanted to see the reasoning behind his position; he wanted to see if that reasoning would withstand her scrutiny.

He opened a comlink channel to Eve and explained the situation to her. Together they tried to establish a link with Lucius, but evidently the five volts Derec was supplying him hadnt been enough to wake him. They would have to do without his input. Adam wasnt all that disappointed; Luciuss reasoning had led him to violate the First Law.

Janet was waiting for Adams response. Carefully, consulting with Eve at every turn, he began to outline the logic that had led them to their conclusion that any intelligent organic being had to be considered human. He began with his own awakening on Tau Puppis IV and proceeded through the incident with the Ceremyons, through Luciuss experiments in creating human beings in Robot City, through the robots return to Tau Puppis and their dealings with the Kin, to their final encounter with Aranimas. He explained how each encounter with an alien being reinforced the robots, belief that body shape made no difference in the essential humanity of the mind inside it, and how those same contacts had even made differences in intelligence and technological advancement seem of questionable importance.

Throughout his presentation, Adam tried to judge Janets reaction to it by her facial expression, but she was giving nothing away. She merely nodded on occasion and said, Im with you so far.

At last he reached the concept of Vitalism, the belief that organic beings were somehow inherently superior to electromechanical ones, and how the robots could find no proof of its validity. He ended with, That lack of proof led Lucius to conclude that Vitalism is false, and that robots could therefore be considered human. Neither Eve nor I-nor Mandelbrot, for that matter-were able to convince ourselves of this, and now that Lucius s belief has led him into injuring a human, we feel even less comfortable with it. We dont know what to believe.

Adam waited for her response. Surely she would answer him now, after he had laid out the logic for her so meticulously.

His frustration level rose to a new height, however, when she merely smiled an enigmatic smile and said, Im sure youll figure it out.

Derec felt just as frustrated as Adam. He had hoped that finding his mother would knock loose some memories from his amnesic brain, but so far nothing had come of the encounter except a vague sense of familiarity that could be easily attributed to her similarity to Avery.

She seemed just like him in many ways. He was a competent roboticist, and so was she. Avery never divulged information to anyone if he could help it, and evidently neither did she. Avery was always testing someone, and here she stood, leading poor Adam on when it was obvious she didnt know the answer to his question either.

He glanced up at the monitor, checking to see if the signal was any clearer. While Janet and Adam had been talking, he had been trying to trace another unfamiliar potential pattern in Luciuss brain, this one an indistinct yellow glow surrounding an entire level of activity, but the monitors trace circuitry couldnt isolate the thought it represented. Whatever it was, it fit none of the standard robotic thought patterns.

He heard Janet say, Im sure youll figure it out, and took that as his cue. Adam, maybe you can help me figure this out. Whats that pattern represent?

Adam looked up to the monitor. I do not recognize it, he said.

Can you copy it and tell me what it does?

I do not wish to contaminate my mind with Luciuss thought patterns.

Put it in temporary storage, then.

Adam looked as if he would protest further, but either the Second Law of Robotics or his belief that Derec would follow the Third Law of Humanics made him obey instead. He fixed his gaze on the monitor for a moment, then looked away, toward the wall.

Derec wondered what was so interesting all of a sudden about the wall. Adam didnt seem inclined to clue him in, either; he merely stood there, hands clenching and unclenching.

Then Derec realized what was behind the wall. Just on the other side was the hospital where Avery was still undergoing surgery.

Erase that pattern, he commanded, and Adam relaxed. What was it?

Adam turned to face Derec and Janet again. It was a potential like those I have come to associate with emotions, he said. However, I have not felt this one before. It was an unspecified negative bias on all thoughts concerning Dr. Avery.

Derec glanced over at Janet, saw that she wore an expression of triumph.

Adam saw it, too. How can you approve? he asked. I have never felt this emotion, but I know what it had to be. Lucius was angry. Considering the degree of bias and the ultimate influence it had upon his actions, I would say he was furious.

Whats one thing a human can do that a robot cant? Janet asked in return.

You wish me to say, feel emotion, said Adam, but that is incorrect. Every robot experiences a degree of potential bias on various subjects. If you wish to call it emotion, you may, but it is merely the result of experience strengthening certain positronic pathways in the brain at the expense of others.

And everything you know comes from experience, doesnt it?

Nearly everything, yes.


Derec could see where her argument was leading. A tabula rasa! he exclaimed. He saw instant comprehension written in Janets smile, but Adam remained unmoved. Derec said, Tabula rasa means blank slate. Its a metaphor for the way the human mind supposedly starts out before experience begins carving a personality into it. Thats one side of the Nature-versus-Nurture argument for the development of consciousness. Dad told me about that just a couple weeks ago, but he was talking about erasing the city Central on the Kins planet, and I didnt make the connection. He looked back at his mother. Thats what you were trying to prove with Adam and Eve and Lucius, wasnt it? You were trying to prove that the tabula rasa argument is valid.

Guilty, she said.

You were trying to produce human minds? Adam asked.

Janet looked as if she wouldnt answer, but after a moment she sighed and said, Ah, what the heck. Looks like that aspect of the experiments over anyway. Yeah, thats one of the things I was trying to do. I was trying to create intelligence. I gave you what I consider the bare minimum in a robot: curiosity and the Three Laws, and I turned you loose to see if any of you would become anything more. Of course I didnt count on you all getting together, but that doesnt seem to have hurt anything. Youve all surpassed anything I expected. Welcome to the human race. She held out her hand.

Adam reached out gingerly, as if after all this time spent searching for the truth, he was now unsure he wanted the honor she conveyed. He took her hand in his and shook it gently. and still holding on, he asked, What about Basalom?

Janet shook her head. The jurys still out on him. I think I gave him too much initial programming for him to develop a human personality.

But youre not sure?

No, Im not sure. Why?

Because if you re not sure, then neither could Lucius be, and he was right in protecting Basaloms life.

Derec had to admit that Adam s argument made sense. So why were the hackles standing up on the back of his neck? He looked back to the monitor, saw the fuzzy yellow glow that Adam said indicated anger. That was why. With only five volts going to his brain, Lucius was effectively in suspended animation at the moment. He was still furious at Avery, and if they woke him up, he might very well continue to be furious. If they were going to reanimate Frankenstein s monster, Derec wanted to calm him down first, at least. If possible, he wanted to do even more.

What can we do to make sure it doesnt happen again? he asked aloud.

Treat him better, Janet said. Follow the Laws of Humanics theyve set up for us.

Derec couldnt suppress a sardonic laugh. That may be fine for us, but what about Dad? Hes not going to do anything he doesnt want to.

His mother tossed her head, flinging her blond hair back over her shoulders. Leave your father to me, she said.

Avery woke from the anesthetic with the impression that his tongue had swollen to twice its normal size. He tried to swallow, but his mouth was too dry for that. His vision was blurry, too, and when he tried to raise his right hand to rub his eyes, it didnt respond.

He was in bad shape, that much was clear. Damn that meddlesome robot! Damn him and damn Janet for building him.

He was evidently sitting up in bed, judging from the few somatic clues he could gather. He opened his mouth and used his swollen tongue and dry mouth to croak out the single word: Water.

He heard a soft clink of glassware, the blessed wet gurgle of liquid being poured, and then a dark shape leaned over him and held the glass to his lips. He sipped at it, blinking his eyes as he did in an effort to clear them so he could see his benefactor.

She spoke and saved him the effort of identification. Well, Wendy, it looks like we have a lot to talk about, and finally plenty of time to do it in.

Turning his head away from the glass, he said, We have nothing to discuss. It came out more like, We a uthi oo ithcuth.

She understood him anyway. Ah, well, yes we do. Theres us, for instance. I cant really believe its just coincidence that brought us back together after all this time.

Avery blinked a few more times, and his vision finally began to clear. Janet was sitting on a stool beside his bed, wearing a soft, light blue bodysuit with a zippered neck, which shed pulled strategically low. Watch yourself, he thought as his eyes immediately strayed to the target shed provided.

She smiled, no doubt recognizing her slight victory.

I don know wha youre talking abou, he said carefully.

Her smile never wavered. I think you do. She held the glass to his lips and let him drink again while she said, Face it; this whole city project of yours seems almost designed to attract my attention. You didnt really think Id ignore it once I heard about it, did you?

Avery, s tongue seemed to be returning to normal. When Janet removed the glass, he said, I tried not to think about you at all.

Didnt work, did it? I tried the same thing.

Her question made him distinctly uncomfortable. What do you want from me? he demanded. Im not going to take you back, if thats it.

I didnt ask that, she said, frowning.

What, then?

Janet set the glass down. Ah, Wendy. Always business. All right, then, well start with my learning machines. I want you to leave them alone.

I told you I would before you had Lucius attack me. Ill be glad to be rid of them.

I didnt have Lucius attack you. He decided to do it on his own. Considering the provocation, I think he showed admirable restraint.

He injured a human to protect a robot. You call that restraint? Avery looked down to his right hand, found the reason why it didnt respond. I1 was encased in a sleeve of dianite from his elbow to the ends of his fingers. Tiny points of light winked on and off along its length, each one above a recessed slide control. No doubt tiny robot cells were busy inside his arm as well, repairing the damage Lucius had done.

He injured a human to protect another human, Janet said. Or so he thought. Evidently thats a trick you taught him.

Another of my many mistakes.

Janet laughed. My, how times do change us. The Wendell Avery I knew could no more have admitted a mistake than he could fly.

And the Janet Anastasi I knew could no more have cared about a robot than she did about her son.

She blushed; he had scored a hit. She didnt back away, though. Lets talk about David for a minute, she said. You wiped his mind after I left. Care to tell me why?

Avery looked around for the medical robot, thinking maybe he could claim fatigue and get it to usher Janet out, but there was no robot in sight. No doubt she had given it some line of rationalization to convince it to leave them alone. He wished hed had the forethought to hide a Key to Perihelion in his pockets; hed have gladly taken his chances with the teleportation device rather than face any more of Janets questions. It looked like he was going to have to, though. She didnt look like she was prepared to let him off the hook just yet.

Sighing in defeat, he said, I wish I could tell you. I went a little crazy there for a while, Im afraid. He says I told him it was a test to see if he was worthy of inheriting my cities, but whether that was really it, or if I had a different reason, I dont know.

You dont suppose you could have been trying to eliminate his memory of me, do you?

Avery shrugged. I have no idea. Possibly. I was quiteangry with you.

Ah, yes, anger. 1t makes people do things they later regret. Well return to that in a minute, but lets not change the subject again just yet. You and David had pretty much patched things up again, hadnt you? You were getting along pretty well. Almost like a normal father and son. What happened to that?

He betrayed my trust, Avery said. His voice came out harsh, and he held out his left hand for more water.

Pouring, Janet asked, Betrayed how? What did he do?

Avery accepted the glass and drank half of its contents in two gulps. He turned my city into a zoo, thats what. Worse, he turned it into a caricature of a zoo. Behind my back.

Janets laugh was pure derision. You were ready to sacrifice everything youd gained with him because of that?

It wasnt the act itself, but the betrayal.

Which you cant bring yourself to forgive. Not even after all you did to him, and all the forgiving he had to do.

Avery gulped down the rest of his water. He had no answer for her. He was thinking of all the times in the last few weeks he had tried to open up to Derec, tried to make up for his earlier failings as a father. At the time it had seemed the most difficult thing hed ever done, which was why the sudden discovery of Derec s subterfuge had affected him the way it had.

Janet got up off her stool and stood beside the bed, looking down on him with angry eyes. I wouldnt come back to you even if youd have me. Why do you think I left you in the first place? Because you could never forgive anything, thats why. The least little mistake and youd be sore for a week, and Frost help me if I made a big one. Is it any wonder I learned to prefer the company of robots? She turned away and stalked to the window separating the recovery room from the rest of the hospital. Beyond it, Derec and Ariel were discussing something with the medical robot. Janet said, Youve learned to admit to your own mistakes; isnt it time you learned to forgive other people for theirs?

Is that what you want from me, then? You want me to forgive our son for hismistake?

Janet turned back to face him. Thats right, I want you to forgive him. I dont think he even made a mistake, but thats beside the point. The practice will do you good, because when youre done forgiving David, then I want you to forgive Lucius for what he did, too.

Avery looked for signs of a joke, but she seemed to be serious. He snorted. You dont forgive robots. You melt them down and start over. Which is what I should have done with your three the moment I found them.

Youd have been committing murder if you had. In fact, according to David, you almost did just that. If he hadnt revived them, youd have been guilty of that, too.

Janet, I think youve been away from human companionship a little too long. Theyre robots.

Theyve got intelligent, inquisitive minds. They feel emotion. You know what was going on in Luciuss mind when he saw you again? He was mad. Furious, to hear Adam tell it. Does that sound like a robot to you?

Avery waved his free arm. Oh, theyre accomplished mimics, granted. You did a wonderful job with them in that regard. But theres no way they can be anything but robots. Theyve got positronic brains, for Gods sake. Its like- He searched for an example as unlikely as a robot becoming human. Ah, it s like Derec s precious ecosystem just over our heads. Most of the trees are robots. They do just about everything a tree can do, including feeding the birds, but could you seriously suggest that any of them really are trees? Nonsense. Theyre robots, just like your learning machines.

Janet sat back down on the stool and took the empty glass from Avery. I think were arguing semantics here. My robots may not be human in the most technical sense, but in every way that counts, they are. Theyre every bit as human as any of the aliens youve met, and youve granted human status to most of those.

Reluctantly, Avery growled. He remembered an earlier thought and asked, Was that what you were attempting to do? Create your own aliens?

I was trying to create a true intelligence of any sort. Alien, human, I didnt care. I just wanted to see what Id get.

And you think youve got both. Avery didnt make it a question. He ran a hand through his hair, then let out a long sigh. I dont care. Im tired. Call them what you want if itll please you, but keep em away from me. As soon as this heals-he nodded toward his right arm-Im leaving anyway, and you can do whatever you please.

Janet shook her head. No, youre not going anywhere until we agree on a lot more than just my learning machines. I dont much like your cities, either.

Fat lot you can do about that, Avery said.

Janet smiled sweetly, but her words were a dagger of ice. Oh, well, as a matter of fact, there is. You see, I patented the entire concept, from the dianite cell all the way up, in my name.

Chapter 6. A Meeting Of Minds | Humanity | Chapter 8. The Other Shoe Drops