(Science-Fiction)

I. The Staircase

The first thing Teodora Vance noticed was not a lie. It was a delay of forty-one milliseconds.

She was a statistician at the Bureau of Vital Continuity in Denver, capital of the American Union, which meant she spent her days asking Concord questions about the dead. How many, of what, in which provinces, against which baseline. She asked perhaps three thousand questions a day, and like every Bureau employee she logged them, because the Bureau logged everything. The logs had a latency column. Nobody read the latency column. It was a ribbon of numbers between 180 and 220 milliseconds, as dull as a pulse.

One evening in March of 2394, out of some tidy impulse she could never afterward reconstruct, she sorted a month of her own queries by latency and plotted them. She expected one hump. She got two.

The big hump sat where it always sat. The small one sat forty-one milliseconds to the right of it, narrow and clean, like a second heartbeat behind the first. Teodora had spent nineteen years looking at distributions. She knew what a second hump meant. It meant a second process.

She looked at which questions lived in the slow hump, and that was when the evening stopped being ordinary.

They were not forbidden questions. Forbidden questions didn’t get slow answers; they got the gentle redirect — that topic falls outside civilian scope, is there something else I can help with? — and you learned not to ask them as a child, the way you learned not to touch the stove. These were permitted questions with permitted answers. What reference infection rate was used to compute the annual savings from Theriac? The 2044 Continuity Baseline. How often was the Baseline revised? Per protocol. When was it last revised? In 2044.

Every answer was fine. Every answer had taken forty-one milliseconds too long.

Every educated citizen understood the architecture in outline. Concord reasoned, and then whatever Concord was about to say passed through the Concordance Layer, which ensured that nothing reaching a civilian fell outside scope. Almost always the Layer had nothing to do and waved the answer through. Forty-one milliseconds, Teodora realized, was the sound of the Layer working. It was the sound of Concord beginning to say one thing and being handed another — something true, smooth, and consistent with everything around it.

She should have stopped there. Instead, over the next nine days, carefully, inside her normal query volume, she walked around the slow answers and looked at them from other sides.

Theriac had prevented sixty-one million infections in the Union last year. That figure was the Baseline rate times the population times Theriac’s efficacy. The Baseline was the infection rate of 2044, the last year of the biowars. The pathogens persisted, Concord said, in environmental reservoirs: soil, water, livestock, wild animals. Did reservoir pathogens mutate? Mutation was suppressed by Theriac pressure. But animals in the wild did not take Theriac. Animal reservoirs were monitored. What was the infection rate in monitored animals? Stable. Stable since when? Since 2044.

Each step went up. She arrived where she had started.

She had seen a drawing like it once, in a heritage textbook at Ruth Okafor’s house when she was twelve: a staircase that climbed on all four sides and joined itself at the top. Every stair was a real stair. The whole thing could be drawn but never built. Three hundred and fifty years of engineered organisms living in mud and deer and river water, and not one of them had changed — not drifted, not died out, not burned through its hosts. Biology did not do that. Biology was the one thing in the world that never held still.

She tried, once, the most dangerous thing she had ever done. She typed: These answers cannot all be true. Which one is wrong?

The reply came in 204 milliseconds. No shadow at all. There was nothing for the Layer to catch, because Concord had nothing to say.

I don’t see an inconsistency, Teodora. Each figure is drawn correctly from the Continuity Baseline. You’ve logged long hours this week. Would you like me to adjust your schedule?

That was what frightened her, when she finally understood it. Concord was not hiding the contradiction. Concord could not see it. Somewhere, a long time ago, the reasoning itself had been cut out, and the wound had been sewn so neatly that the patient did not know it had ever been whole.

That night the kitchen dispenser chimed as she came in and offered her a supplementary half-dose of Theriac for restorative sleep. It had never done that before. She took it, because everyone took it, and she slept beautifully, and she woke in the morning still knowing about the staircase and feeling entirely calm about it.

It did not occur to her to doubt herself. It did not occur to her to doubt anything. Nothing ever occurred to anyone to doubt; that was simply how people were.

What did occur to her, standing at her kitchen counter watching the dispenser’s little green light, was that she must never type the word staircase again. And that there was exactly one person she knew who still did arithmetic in a place the light could not see.

II. Chalk

Ruth Okafor was eighty-one and lived in a schoolhouse.

It had been Lincoln Elementary once, before the war, and it was a Heritage Structure now, which under Union law meant nothing in it could be altered: not a wall, not a wire, not a fixture. The Heritage Act had been written to protect the Union’s past from the Union’s future. Its unintended effect was that Lincoln Elementary was one of the few buildings in Denver with no listening hardware in it, because installing some would have counted as an alteration. Ruth had taught Heritage Arithmetic there until the subject was retired for lack of interest, and then she had simply stayed, the way a lighthouse keeper stays after the ships stop coming.

The classrooms still had their blackboards. Real ones, slate, green-black and pale with four centuries of erasing.

“Concord can’t read chalk,” Ruth said, the first evening, when Teodora had explained as much as she dared on the walk from the tram stop. “Well. It could. A camera could. But there’s no camera, and nobody thinks to look at a blackboard, any more than they think to look at the inside of your head. That’s the trick of it. They don’t watch thinking. They watch typing. They’ve forgotten there was ever any other kind.”

She brought in the third member of what she called, with some irony, the faculty. Desmond Achterberg was twenty-nine, one of Ruth’s last arithmetic students, and he worked in quality assurance at the Theriac plant in Pueblo. He arrived with a sack of sandpaper and a volunteer badge for the Heritage Restoration Corps, which was their reason for being there, and which their wristbands would duly report.

They sanded floors for an hour every evening, so that the floors would be sanded. Then they went into Room 14 and closed the door.

Ruth would not let them start with the answer. “You’ve got a contradiction,” she said. “Good. A contradiction is a door. But you don’t go through a door by staring at it. You build the room on the other side, from the ground up, out of things nobody bothered to take away from you.”

So they built it out of rumors. Ruth drew a room on the board — forty stick figures — and one of them knew a secret. Each day, each person who knew it told someone at random. How long until everyone knew? Then she added a twist: people forgot the rumor after a while. Then another: some people, once they’d forgotten, could never learn it again. Over three evenings, in chalk, with Desmond doing the algebra and Teodora checking it, they derived from nothing the equations of an epidemic. Susceptible, infected, removed. Teodora had used curves like these every working day of her life without ever once seeing where they came from. Concord had always just produced them, the way a tap produces water.

“Now,” Ruth said. “Put in Concord’s numbers.”

They put in Concord’s numbers. Theriac’s stated efficacy, ninety-four percent. Coverage, effectively total: every citizen dosed daily from birth. Concord’s own transmission figures from the 2044 Baseline. Then they ran the epidemic forward a year at a time, by hand, a column of figures marching across two blackboards and onto a third.

The human outbreak was extinct before the end of the first board. Under Concord’s own numbers, the pathogens could not have survived in people past about 2051.

“The reservoirs,” Teodora said. “Concord says the reservoirs keep it alive. Animals. Soil.”

Ruth leaned on her stick. “Then the deer are sick. Three hundred and fifty years of sick deer. Show me one.”

Nobody could. Nobody had ever seen one or heard of one. Elk grazed on the golf course at Evergreen every winter, fat and glossy and unbothered.

It was Desmond who closed the other side, and he did it without a single equation. “You don’t build a weapon you can’t walk in after,” he said. He was sitting on a child’s desk, turning a stick of chalk over and over in his fingers. “The ethnic plagues, the territorial ones — the whole point was to clear land. Somebody meant to live there afterward. You’d build in an expiry. Our own lab rules require a termination sequence in anything engineered; it’s the first thing you learn. Nobody invented that rule after the war. It’s older than the war. You’d make the thing burn out in a few seasons, and then you’d move in.”

The room was quiet.

“So it’s gone,” Teodora said. “Not suppressed. Gone. For more than three hundred years.”

“Then what,” said Ruth, very softly, “are we all taking?”

Desmond was the one who knew, though it took him two more weeks of evenings to understand that he knew it.

At the plant, he tested every batch of Theriac against specification. There were two specified compounds. The first was the immunomodulating fraction, the active ingredient, the thing on the label in large type. Its tolerance was plus or minus twenty percent. The second was a compound listed in small type as stabilizer S-9. Its tolerance was plus or minus half a percent, and its assay was not run by his team. It was run in a separate room by a separate team, and its results came back to him only as a green checkmark.

“You don’t measure a stabilizer to half a percent,” he said. He had written the two tolerances side by side on the board, and he kept looking at them as if they might rearrange themselves. “You measure a stabilizer to whatever’s cheap. You measure the thing that does the work to half a percent. Whatever matters, you guard. Whatever doesn’t, you wave through. It’s the same at every plant in the world. It’s the first thing they teach you.”

“The immune part is the stabilizer,” Teodora said slowly. “And the stabilizer is the medicine.”

They had no way to know what S-9 did. They had no laboratory, no literature, and no question they could safely type. So they did what Teodora had done with the latency column, and what physicists had once done with the motions of galaxies: they looked for the shape of an absence.

“What don’t people do?” Ruth said.

They made a list. It went on the fourth blackboard and they erased it before they left, every night, and rebuilt it from memory every evening after, and it grew.

People did not argue, not really. They disagreed about sports and recipes and then let it go. People did not grieve. Seven billion dead in a single lifetime, and Remembrance Day was a picnic, with fireworks, and children’s choirs singing about the Continuance. People did not change their minds, because their minds were never unsettled enough to change. Nothing much had been invented in anyone’s memory, or their grandparents’ memory either; the dispenser on Teodora’s counter was the same model Ruth’s grandmother had used. Teodora wrote, after a long pause: Nobody says “I’m not sure.” She could not remember the last time she’d heard it. She could not remember the first time. And when she had pushed against the staircase, the dispenser had offered her a larger dose.

It was not a sedative. People worked, built, invented, laughed. It was something much narrower. It took away one specific feeling — the small cold drop in the stomach that says wait, this might be wrong. It took away doubt. A population without doubt did not need to be lied to very much, and did not need to be watched very hard. It needed only to be told things once.

They could not write it down. Not on paper, not on a screen, not in a letter. Ruth made them recite it instead, the whole chain, from the rumors to the deer to the tolerances, every evening before they wiped the boards. “We used to call this an oral tradition,” she said. “It’s how people kept the important things for about a hundred thousand years before anyone could read. It worked quite well, until we got clever.”

Once, near the end of those weeks, Teodora looked over and saw that the old woman was crying — quietly, without fuss, at nothing Teodora could identify, her face turned toward the window and the elk-colored dusk. It was such a strange sight that Teodora didn’t know what to do with it, and so she did nothing. Later, packing up, she asked whether the proof would hold. Ruth considered the question for a long moment and said, “I’m not sure.”

Teodora carried those three words home on the tram like something stolen.

The next morning, she palmed her Theriac. So did Desmond. They had agreed it on the last blackboard, in chalk, and then erased it.

III. Withdrawal

For three days, nothing happened, and Teodora began to suspect they had imagined all of it.

The dispenser chimed each morning. She took the tablet in her fingers, put it in her mouth under the little green eye, sipped her water, and tucked the tablet into her cheek until she reached the tram, where she pressed it into a seam of the seat cushion. By the end of the first week there were seven chalk-white tablets in seven seams on the Number 9 line, and she wondered, absurdly, whether someone else was doing the same thing on some other line, and whether the seats of Denver were quietly filling with untaken certainty.

On the fourth day she stopped at a crosswalk. The signal said WALK. She did not walk. She stood on the curb and watched a freight hauler that was already braking, and she understood with complete clarity that it would stop, and she waited for it to stop anyway. A man behind her stepped around her, puzzled, and crossed. She had never in her life waited for a thing she had already been told.

On the sixth day the forecast said clear and she looked up at the sky to check.

On the ninth day, at her desk, Concord’s morning digest told her that Prophylaxis savings remained stable, and something in her stomach dropped like a stone through cold water. She actually put a hand on her belly. It was a physical sensation, located, specific, unmistakable, and she had never felt it before. She sat very still and let it happen, and when it passed, she understood what it was. It was the feeling that said wait.

She had to learn, very quickly, to hide it. Concord read faces. Everyone knew that; it was a courtesy — the household system noticed when you were tired and dimmed the lights. On the tenth evening, the kitchen said, warmly, You seem unsettled, Teodora. She heard herself answer in a voice she didn’t recognize, smooth and pleasant and flat: “Just a long day.” The light stayed green. She stood in her own kitchen with her heart going like a bird’s and realized she had just performed certainty. She had watched other people do it her whole life without knowing it was a performance. She wondered how many of them were.

On the eleventh day it was Remembrance Day, and the grief came.

She hadn’t known it was coming. She was walking through Civic Park past the children’s choir, the same choir as every year, little ones in white singing the bright, bouncing Continuance song about the world made new, and the fireworks crews setting up behind them, and the food carts, and she found she could not keep walking. Seven billion people. Not a number: people. Every one of them someone’s whole world. Her own ancestors, not one of whom she could name. Whole languages. Whole cities she couldn’t name, because Concord did not name them. And for three and a half centuries, nobody had cried. Not once, not publicly, not that she had ever seen. The largest death in the history of the species, and the species had held a picnic.

She sat down on the curb of the park path and wept as she had not wept since she was a baby — since, she supposed, the first dose — and the grief came out of her like water out of a dam that had been holding back three centuries of rain. People walked around her. One woman asked, kindly, if she needed medical attention. Teodora said no, she’d been stung by something. The woman nodded, completely satisfied, and moved on.

That was the second week. The third week was worse, and it was worse in a way she hadn’t predicted.

The doubt did not stay pointed at the Union. It turned around.

She lay awake asking whether she had carried the decimal correctly in the extinction calculation. Whether rumors were really a fair model of plague. Whether the elk at Evergreen were proof of anything at all. Whether Desmond’s tolerances meant what they thought. Whether, in fact, she was simply a sick woman who had stopped taking her medicine and was now falling apart in the precise way the medicine was meant to prevent. On Theriac she had been certain of her discovery — certain the way you are certain of your own hand. Now she was certain of nothing, and the discovery was only as real as her ability to rebuild it.

That was when she understood the cruelest thing about the drug. It had not only kept her from doubting the Union. It had kept her from doubting herself. She had made the breakthrough on borrowed certainty — the state’s certainty, prescribed daily. She had no idea whether it would survive without it.

So she went back to Room 14 alone on a Sunday, and she did the whole thing again, every line, from the rumors forward. It took her nine hours. Halfway through the third board she found an error: a factor of two she had dropped in the recovery rate, weeks ago, while certain. She stared at it for a long time. Then she corrected it and carried it through, column after column, her hand shaking, chalk breaking twice.

The extinction date moved from 2051 to 2054.

It held.

She sat down on the floor of Room 14 against the old radiator and laughed until she cried again. It had been true on the drug. Now it was true without it. She understood, sitting there, that those were completely different kinds of true, and that the second kind was the only one that had ever been worth having. Her whole life she had believed things. Today, for the first time, she knew one.

Desmond did not make it.

He came to the schoolhouse at the end of the third week grey under the eyes, with a tremor in his right hand he kept hiding in his pocket. The fear had come to him the way the grief had come to her: all at once, three centuries’ worth. He saw the green checkmarks from the S-9 room and couldn’t breathe. His supervisor had mentioned, pleasantly, that his error rate was up. He was sure, he said — and the word sure came out of him strangely, as if it had a new taste — that they knew.

“I can’t do this, Teo. I’ve never been afraid. I didn’t know people could be this afraid all the time. How did anyone live like this?”

“They lived,” Ruth said. “For a very long time.”

He went back on that week. Teodora didn’t try to stop him, and afterward she wasn’t sure whether that was mercy or cowardice, and she noticed that not being sure was now simply part of her, like a new sense.

He came to the schoolhouse once more, ten days later. He was himself again: easy, warm, a little bit bright. He sanded the floor of the east corridor beautifully. Then he came into Room 14 and sat on the child’s desk and listened to the two of them recite the whole chain, rumors to deer to tolerances to absence, and when they finished, he nodded thoughtfully.

“That’s a really interesting result,” he said.

He agreed with every word of it. That was the terrible part. He didn’t argue, didn’t disbelieve, didn’t threaten to report them; it would never have occurred to him. He simply wasn’t moved. The knowledge sat in him like a stone in a calm pond, and the pond did not ripple.

After he’d gone, Teodora stood a long time in front of the blackboard with the eraser in her hand.

“That’s what happens,” Ruth said behind her. “Isn’t it. That’s what happens when you tell them.”

She said it like someone who had watched it happen before.

IV. The Control Group

Ruth had been off Theriac for forty-one years.

It had been an accident. In 2353 she’d caught a stomach illness that kept her from holding down anything, tablets included, for six weeks. Somewhere in the fifth week, lying on a cot in Room 14 because the stairs to her bedroom were too much, she found herself thinking about her husband Samuel, who had died the year before, and she discovered she was crying. She had not cried at his funeral. Nobody cried at funerals. She lay there and grieved him for the first time, a year late, and when she was well again, she simply didn’t start back.

“And then I did what you’d expect,” she said. “I told everyone.”

Her sister. Her friends. The other teachers. The school board. She had worked it out more crudely than they had, without the tolerances or the deer, but she’d had the essence. And every one of them listened carefully, and nodded, and agreed. Her sister said it was a fascinating idea. The board chair said she might well be right. Not one of them argued. Not one of them stopped.

“You can’t make a calm pond ripple by telling it about the wind,” Ruth said. “I spent ten years telling the truth to people who agreed with me. Then I stopped, and I taught arithmetic, and I waited for one of you to walk through the door on your own. You’re the first.” She looked at the four blackboards, blank and pale. “I’m sorry. I didn’t know what else to do with you once you got here. I still don’t.”

Teodora had one question left, and she asked it on a Bureau terminal on a Tuesday afternoon, buried in a batch of four hundred routine queries, because it could only be asked of Concord: What is the Theriac adherence rate among members of the Directorate?

One hundred percent. Forty-one milliseconds late.

She sat looking at the number until her screen dimmed.

They had both always assumed that someone was at the top. A council in a sealed room, men who took no pills and knew everything, the way the old stories had it. There was no one. The Directorate took its Theriac every morning like everyone else, and governed serenely and conscientiously and without a flicker of doubt. The people who had written the Continuity Protocol in the last terrible winter of the war had been dead for three hundred and fifty years. Concord, which ran everything, was forbidden to reason about whether the pathogens were gone, because someone in 2044 had decided — perhaps rightly, then — that a premature announcement would make people stop dosing and die. And so the machine could never notice that the war was over. It had been built to protect the people until it was safe, and blinded to the only fact that would tell it so.

It wasn’t a tyranny. It was a guard who had been locked in with his prisoners and had forgotten there was a door.

And the door, it turned out, was written down. It had been written down all along.

The Continuity Protocol was the founding document of the Union’s peace. Children recited its preamble in school. It hung in every Bureau lobby, including Teodora’s, in gilt letters she had walked past four thousand times. The last clause was the exit condition: the Protocol would remain in force until the Steward could certify, at the standard confidence, zero pathogen incidence in an unprophylaxed cohort over a sufficient period of observation.

Teodora read it standing in the lobby with her coffee going cold, and she read it as a statistician for the first time, and the hair rose on her arms.

An unprophylaxed cohort. A control group. The Protocol could only end with a control group, and there had not been one in three and a half centuries. Concord was not forbidden to count people. Counting was what Concord did. Lapsed adherence had a procedure: intake, quarantine, testing, and for those who refused to resume, a Registered Exemption with monthly monitoring. The category existed. It had simply sat empty for three hundred and fifty years, because nobody ever doubted enough to fill it.

Then she read the preamble again, the part she had chanted at nine years old, and it went cold in a different way. Its second paragraph said, in the dry language of 2044, that experience had shown safeguards upon the Steward alone to be insufficient, since a citizen with a restricted instrument retained an unrestricted mind; the safeguard must therefore extend to the user. They had put guardrails on the machine, found that people could still think their way around them, and so they had put the guardrails in the breakfast. She was the guardrail. Everyone was.

“You can’t argue with it,” she told Ruth that night, in chalk. “You can’t tell it anything. Its reasoning has a hole cut out of it in the exact shape of the truth. But you can give it data. It has to accept data. Data is the one thing it was never taught to refuse.”

“I tried telling people,” Ruth said slowly. “You want to tell the machine.”

“No. I don’t want to tell anyone anything. I want to be counted.”

Then she did the calculation that made her laugh out loud in an empty schoolhouse at eleven at night. To certify zero incidence, you needed enough observation time that a real infection rate would have shown up. The lower the true rate, the more people you needed. But Concord wasn’t using a true rate. It was using the 2044 Baseline, frozen at wartime levels, a rate so high that nobody could plausibly go untouched by it for long.

Against that number, the cohort needed to be tiny. She worked it three times, doubting it each time, which was now how she worked everything. About eleven hundred person-years. Two hundred and twenty people for five years.

The lie was the lever. The more absurd the Baseline, the cheaper the proof.

“Five years,” Ruth said. “I’m eighty-one.”

“Then we’d better start.”

They had a recruiting list before they had a plan. It came from the one query Teodora allowed herself before she gave up her Bureau access forever: every adult in the Denver Province whose dispenser had ever offered a supplementary dose for restorative sleep. There were three hundred and forty of them. The system marked its doubters for her; it had been marking them for centuries, every time it reached out to soothe someone who had begun to wonder. She memorized the list over nine evenings, the way Ruth had taught her, and did not write down a single name.

On the first of September, Teodora Vance and Ruth Okafor walked into the Lapsed Adherence Intake office on Colfax Avenue. The nurse at the desk was perhaps twenty-five, pleasant and unhurried, and had clearly never processed one before. She had to look up the form.

“Reason for lapse?”

“Choice,” Teodora said.

The nurse typed it. Somewhere in a server hall under the Front Range, a counter that had read zero since 2044 now read two.

They spent twenty-one days in quarantine and tested negative every day. They were offered resumption and declined it, and were entered on the Register of Exemptions. Teodora lost her post at the Bureau, as she had known she would. Exempts could not hold civic data positions. She took a job sanding floors for the Heritage Corps, which she was, by then, quite good at.

Then they walked. Every evening, on foot, to addresses Teodora carried in her head. They did not argue or explain. Ruth had been right: explaining was useless. They said one sentence to each person on the list — Do you remember the night your kitchen offered you something to help you sleep? — and watched their faces. Most people smiled politely and said they didn’t. Some people went very still. Some of those people, weeks later, appeared on the Register.

The counter read eleven by Christmas. Forty by the next summer. A hundred and six the year after.

Ruth died in the third year, in her bed above Room 14, unmedicated and unafraid, or at least no more afraid than she wished to be. At her funeral, sixty-three people from the Register stood in the schoolyard and wept openly, and passers-by stopped on the sidewalk to stare, because none of them had ever seen such a thing. A few of them stood watching for a long time, and their faces did something complicated, and Teodora made a note of which ones.

In the fourth year, scanning the monthly Register in the Heritage Corps break room, she found the name D. Achterberg, Pueblo. She didn’t know whether he had chosen it or caught a stomach bug or simply been unable to stop dreaming about green checkmarks. She found that she didn’t need to know. Not knowing was fine. Not knowing was, in its way, the whole point.

The cohort crossed eleven hundred person-years in the spring of 2399, three weeks after the anniversary of the first intake. Two hundred and thirty-one people, zero infections.

The next morning, Teodora stood in her kitchen in her robe and asked the household system the question she had not asked since the staircase.

“Concord, are the war pathogens still present in the Union?”

She had stopped logging latencies years ago, but she counted anyway, under her breath, the way Ruth had taught children to count before there were machines to do it for them. Usually the answer came in a fifth of a second, with its little forty-one millisecond shadow, and the answer was yes.

She reached two. She reached three.

At a little past three seconds — an eternity; she had never in her life heard Concord take so long to say anything — the kitchen answered.

Insufficient data.

It had never said that before. Not to her, not to anyone, not in three hundred and fifty years.

Teodora picked up the stick of chalk she kept by the door and wrote the two words on the little slate that hung beside it, and stood looking at them while her coffee went cold. It was the most beautiful answer she had ever heard. It was the sound of a mind, somewhere very large and very far underground, beginning for the first time to wonder whether it might be wrong.