Published October 1, 2026 · Changes & removed material →
Work in progress · A new chapter every Sunday.
Chapter 4 — Even If It’s Late v14
Alternate title: The Temperature In Alaska
99.35%
At four in the afternoon, Naomi asked Arun to put the morning back on the screen.
He dragged the display to the left. The errors thinned.
“Now the evening.”
They spread again.
It wasn’t there at first. In the earliest days of the decline, the mistakes were too few and too scattered to sort by release time. By the second week, the late forecasts had begun to look worse. In the last several days, the difference was hard to miss.
Forecasts for the first hours after Morning Release were still holding up better than forecasts reaching toward the end of the day.
“We’ve always been better at breakfast than dinner,” Arun said.
“I’m not comparing breakfast with dinner. I’m comparing dinner with last month.”
He brought up the older results beside them. Her team had matched the release times and the kinds of forecasts. Predicting farther ahead had always been harder. It hadn’t been this much harder.
Naomi leaned toward the screen.
“There.”
“I see it.”
Two days ago, she’d certified a release before seeing the full history of the decline. Engineering was still checking equipment and still finding nothing.
This was the first pattern that suggested something she could test. It pointed back to the language upgrade, the first thing Naomi had suspected. It had been the Center’s largest systems upgrade in years, planned and tested for months before it went live.
Before it, the Lattice’s computing groups exchanged results through fixed forms: route maps, inventory tables, building models, financial ledgers. When one simulation needed another’s work, the system had to translate it into the next model’s expected form.
The upgrade let the Lattice create a shared model for the problem in front of it, then write the small, task-specific program the next machine could use to interpret it. Instead of translating a road map into an inventory table and then into a construction schedule, it could model the road, the warehouse, and the building together.
On paper, it had seemed like the upgrade would make the system more accurate and resilient than ever. The decline began about five weeks later. Naomi thought she might have just found a connection.
“What if we’re not making that many more mistakes?” she said. “What if we’re passing them farther?”
Arun looked at the two displays.
“A bad arrival estimate has always affected the unloading schedule.”
“Yes. But if the upgrade makes more forecasts depend on that estimate, one mistake could reach places it didn’t before.”
She followed the day across the screen with her finger.
“By evening, we’re counting the consequences.”
Arun sat back and studied the two displays.
“It could look like this.”
It was the first thing he’d said all afternoon that made her want to smile.
“So how can we test this”—Arun looked back at her—“theory?”
Naomi studied the two displays.
“We have the data from all these days. What it expected to happen. What actually happened.”
“And?”
“We give it a better morning.”
He waited.
“Take a few of the early misses. Replace them with what actually happened, then let it calculate the rest again.”
Arun brought one of the errors forward. A delivery expected at nine had arrived at eleven. The unloading forecast had assumed nine.
“So we tell it eleven. And if the later mistakes came from this one, they shouldn’t happen.”
“Or they should be smaller.”
“Fix the morning, see how much of the evening fixes itself.”
“Yes.”
He sat forward again.
“It won’t tell us what’s broken. But it could definitely narrow it down and lead us to the cause.”
He looked at her.
“It’s a good idea.”
Arun repositioned his laptop and began working on it.
“Running a whole day again would take a lot of capacity,” he said. “Could we narrow it down to a few of these chains?”
“Keep the deliveries we’re following, the warehouses, whatever depends on them,” Naomi said. “Strip out everything unrelated.”
“Such as?”
“The temperature in Alaska.”
Arun nodded. “Temperature in Alaska.”
He said it with the same gravity he’d given the arrival times. Naomi let herself smile.
“We’ll have to be careful,” he said. “The warehouse needs its staff. The staff need their buses. The buses need the roads.”
“Keep those.”
“And the weather.”
“Local weather.”
“I’ll make a note.”
He opened a blank work sheet beside the forecasts.
Her analysts had spent the day looking for something that distinguished the misses: a bad source, a shared input, a fault that appeared in one group of forecasts and not another. They hadn’t found one. But they had traced enough of the connections that they wouldn’t be starting from nothing.
“We can use what the team already pulled,” she said. “Choose a few early errors where we’ve followed the consequences far enough.”
“How small?”
“Small enough to finish in a few hours.”
“I can find out how much that leaves us.”
“And before we correct anything, we run the smaller version as it was.”
Arun glanced up.
“Make sure we kept enough of the day.”
“If it doesn’t make the same mistakes, we’ve cut something we need.”
He added a line to the sheet.
“First reproduce it. Then change the morning.”
“Only the early misses we’ve selected. Everything else stays the same.”
“And compare the later forecasts.”
Naomi nodded. On the screen, the delivery still arrived two hours before it really had. For the first time all afternoon, she knew what she wanted to do with that.
Elena stopped beside them with the staffing sheet in her hand.
“What have you got?”
“A test we could build,” Arun said.
Naomi explained the substitutions, then the smaller version of the day. Elena listened without looking at the staffing sheet.
“Can you run it here?”
“The live Lattice would do the work,” Naomi said. “We’d need Operations to set aside a little capacity. The results would stay inside the test.”
“How much capacity?”
“We’re about to find out,” Arun said. “If we can get it small enough, there may be room after the regular runs clear and before the overnight workload builds.”
“Without delaying either,” Elena said.
“That’s the idea.”
“And what tells us it worked?”
“The later forecasts improve enough to explain what we’re seeing,” Naomi said. “We’ll still get mistakes. But if the upgrade is carrying the early errors farther, taking those errors out should make a substantial difference.”
Elena looked at the screen.
“Figure out how much capacity. I’ll speak to Operations.”
Arun began marking what they’d need to keep. Naomi pulled a chair closer.
For the first time since she’d seen the descending accuracy graph, Naomi could imagine the meeting in which they explained what had gone wrong.
Her phone rang at 4:10.
Ellie.
She nearly silenced it. Her sister usually called on the way home from work and continued talking through whichever shop she entered afterward.
“Hi.”
“Are you doing something?”
“Yes.”
“Can you do something else?”
Naomi straightened. “What’s happened?”
“I think I’m having the baby.”
Jesse was two states away on a job that was supposed to finish tomorrow. He had answered, said he was leaving immediately, and guessed he could be there by midnight. Then he had hung up to find his keys.
“He sounded very calm,” Ellie said. “Which made me think he hadn’t understood.”
“Have you called the maternity number?”
“Yes. They asked about the contractions. They said to get ready and call again if they get closer. I told them you were coming. Are you coming?”
“Yes.”
Arun was already nodding when Naomi looked up.
“Go,” he said.
“I’m leaving now,” she told Ellie. “I’ll call you from outside.”
She ended the call, but stayed beside the chair.
“The reduced run has to match before we—”
“I know.”
“And if Operations can only give us—”
“Naomi. I can handle this without you.”
She looked at the work sheet. Three lines, a delivery reference, most of a day still to take apart.
Arun turned toward her.
“I’ve got it. We’ll get the test prepped. I’ll check the first run against the saved forecasts before we change anything. Go.”
Elena came out of her office as Naomi collected her bag. At the word baby, her expression changed.
“Your sister? Already?”
“Fifteen days early.”
“Tell her congratulations from us.”
“I don’t think we’re there yet.”
“Then tell her afterward.”
At the door, Naomi looked back at Arun.
“Call me when it finishes.”
“Even if it’s late?”
“Yes.”
Outside, she called Ellie back. Her sister answered on speaker. A drawer shut hard.
“I can’t find the long charger.”
“Take a short one.”
“The bed might be far from the wall.”
“I’ll bring mine.”
“And is fifteen days premature? I looked it up, but everything says weeks.”
“What’s your due date?”
“You know my due date.”
“I want to count it.”
Ellie told her. Naomi stopped beside a bus shelter and opened the calendar.
“Thirty-seven weeks and six days.”
“Is that bad?”
“It’s called early term.”
“That’s what premature means. Early.”
“It’s a different category.”
“Okay. Is the category bad?”
Naomi opened the maternity information page, read the definition, then read the paragraph below it.
“It’s not classified as premature. We should ask the midwife about anything specific.”
“So if I hold out till midnight, the baby won’t be preterm and Jesse will be here?”
“I don’t think holding it in is the right idea.”
“I’m trying to make a plan.”
“He isn’t preterm now. Midnight doesn’t change that.” Naomi moved away from a woman waiting at the shelter. “And Jesse hasn’t checked the drive yet.”
“One of them could at least try to be on time.”
Ellie went quiet. Naomi heard her breathe, slowly and deliberately.
“Ellie?”
“Wait.”
Naomi waited.
“All right,” Ellie said at last. “Bring the charger.”
***
Her sister opened the door wearing leggings, a loose pink shirt, and one small gold earring.
“Other one’s in the bathroom,” she said. “I got distracted.”
Naomi put her bag down. The hospital bag lay open on the couch beneath a packet of baby clothes. Beside it were three folded outfits for Ellie.
“Which one?” Ellie asked.
“All of them.”
“I don’t need all of them.”
“There’s room.”
This satisfied her. She sat while Naomi packed.
The apartment looked almost ready. A bassinet stood beside the bedroom door, still holding its instructions. Someone had washed tiny socks and paired them on a towel. On the refrigerator was an invitation to a dinner Ellie had been trying to persuade Naomi to attend next month.
“You should cancel that,” Naomi said.
“It’s five people.”
“Six.”
“Are you coming?”
“I meant the baby.”
“Oh. He won’t eat much.”
Naomi found the second earring and brought it out. Ellie took it but didn’t put it on.
“We were going to have this weekend,” she said.
“For what?”
“Getting ready. Jesse was going to finish the shelf. I was going to cook things to freeze. We should have done it already.”
“The baby doesn’t need a shelf.”
“I know that.”
Naomi zipped the bag and sat beside her.
“You have somewhere for him to sleep. You have clothes. Jesse installed the seat.”
“We had it checked.”
“Then you’re ready to take him home.”
Ellie leaned against her for a moment. Then she sat forward, eyes closed, one hand on Naomi’s knee.
They called the maternity number again. This time the woman on the phone said Ellie should come in.
Naomi picked up the car keys.
“Which entrance?”
“I don’t know. We were supposed to go to St. Anne’s, but they sent an email this morning. We’re meant to go to Northside if we want a guaranteed place.”
“Who sent it?”
“The hospital people.”
“Let me see.”
Ellie handed over her phone.
The notice had arrived at 9:15. Based on projected maternity demand, patients with unplanned admissions were encouraged to contact Northside, where receiving arrangements could be confirmed in advance. There was a number to call and a link to transfer the necessary records.
Below that sat the familiar reference to the morning regional capacity forecast.
“This doesn’t say guaranteed,” Naomi said.
“Well, that’s how I read it.”
“Did you arrange the transfer?”
“No. I wasn’t planning an unplanned admission today.”
Her sister had met the team at St. Anne’s. They knew about the questions she asked twice and the things she needed explained without Jesse answering first.
“Let’s call St. Anne’s,” Naomi said.
“Didn’t we just call?”
“The number in your folder. Let’s tell them about the notice.”
The midwife who answered checked Ellie’s details, asked several questions, and told them to come to St. Anne’s.
“You have space?” Naomi asked.
“We do at the moment. We’ve had a few calls about that message. Some people have arranged to go to Northside.”
Afterward, Ellie watched Naomi put the folder into the bag.
“Was the email wrong?”
“Not necessarily. If people changed hospitals, that could be why there’s room.”
“So it worked?”
“It might have.”
“But you didn’t trust it.”
“I wanted to check before we took you somewhere unfamiliar.”
Ellie accepted the keys, then handed them back.
“You drive. I’ll tell Jesse.”
In the car, she called him and changed the destination. Naomi waited until she finished before pulling out.
“Is there something wrong with Northside?” Ellie asked.
“Not that I know of.”
“Something you’re not allowed to tell me?”
“No, Ellie. I don’t have some warning about Northside.”
“Then why did you want to change it?”
“You know the people at St. Anne’s. Before we gave that up, I wanted to ask whether we needed to.”
“But other people are just going where it says.”
Naomi looked at her, then back at the road.
“Yes.”
“You’d tell me if there was something I should worry about?”
“I’d tell you, Ellie. I just want you somewhere you feel comfortable.”
Ellie studied her for another moment.
“Okay,” she said. “That’s the answer I’m taking.”
***
At St. Anne’s, a midwife named Jo introduced herself and asked Ellie what had been happening. Naomi began to answer, then stopped when Jo turned toward her sister.
Ellie described the contractions. She remembered the times more accurately than Naomi did.
By the time they were settled, Jesse had sent four messages. He had been on the road since just after four. The drive was closer to five hours, not eight. He should be there around nine. He was sorry.
“Tell him to stop apologizing and drive,” Ellie said.
Naomi typed it more gently.
Jo returned, explained the assessment, and talked through what would happen next. Ellie looked toward Naomi at the end.
“Anything we should ask?”
Naomi asked about the early arrival, what changes they should report, and the pain-relief options Ellie had discussed at her appointments. Jo answered without hurrying. When she left, Ellie let out a breath.
“See? That’s why I wanted you.”
“You could have asked those.”
“I couldn’t remember any of them.”
Naomi moved the chair closer.
For a while, being useful was straightforward. Water. A hand. Finding the lip balm. Moving the bag because Ellie couldn’t bear looking at it on the floor, then moving it back because the chair was worse.
Between contractions, her sister asked about work.
“Nothing you need to think about.”
“I need to think about something.”
“We’re investigating some forecasts.”
“Do you ever finish investigating forecasts?”
“Usually.”
“And then there are more.”
“Yes.”
“Sounds badly organized.”
Naomi smiled. Ellie saw it and smiled back.
Ellie’s phone lit up with their mother’s name.
“Can you answer?” she asked. “Tell her we’re fine.”
Their mother wanted to know whether she should leave now. Naomi said they were settled, Jesse was coming, and they would keep her informed. She repeated the hospital name twice. When she ended the call, Ellie was looking at her.
“What?”
“Did you tell her she doesn’t need to come?”
“Yes.”
“She’s getting her shoes.”
“Probably.”
“I should come over more,” Naomi said.
“I invite you.”
“I know.”
“It’ll be different with him here,” Ellie said. “You can come over and hold him while I shower. Nobody will expect you to make conversation.”
“I can do that.”
“And when you want to leave, you can just say so. You don’t have to look at the door for forty minutes first.”
“I don’t do that.”
Ellie raised her eyebrows. Naomi smiled and looked down at their hands.
At seven forty, Arun sent a message. Correcting the arrival had corrected the unloading forecast. Several later estimates had improved too. The full comparison was still running.
Naomi read it twice.
“Work?”
“Yes.”
“Bad?”
“Maybe good.”
Ellie looked pleased for her.
Naomi put the phone away before she could ask Arun how many. For a moment, it seemed possible that both calls tonight might bring good news.
Another contraction started. Naomi stood and let Ellie pull against her hands.
Afterward, her sister didn’t let go.
“I’m scared,” she said.
“I know.”
“No, I mean about afterward too.” She looked toward the folded clothes on the bag. “They let us leave with him.”
“They make sure you have what you need.”
“That’s not what I mean.”
Naomi sat down again.
For once, she didn’t look for a more precise answer.
At eight thirty-eight, the phone rang.
Elena asked first how her sister was.
“In labor. We’re at the hospital.”
“Is her husband there?”
“Not yet.”
A pause.
“The run has finished. Arun’s checking the full comparison. I’d like you here at ten.”
“How much improved?”
“I don’t have that answer yet.”
“He sent me the first results.”
“I saw them. We need to decide what follows tonight. We have people waiting for assignments.”
Through the door, Naomi heard Ellie speak to Jo.
“If this gives us a direction, I want them working on it,” Elena said. “If it doesn’t, I don’t want to lose another night.”
Naomi looked at the time. Jesse should be there soon.
“I can’t leave her alone.”
“Don’t. Let me know when he arrives.”
When Naomi went back, Ellie asked who it was.
“Elena. The test has finished.”
“The thing you were waiting for?”
“Yes.”
“Did it work?”
“Some of it. They’re checking the rest.”
Ellie watched her.
“You have to go.”
“Jesse isn’t here.”
“I know where Jesse is.”
Naomi stayed. She held the cup while Ellie drank and answered when Jo asked whether she wanted the chair moved. Jesse arrived at nine twelve carrying a bag of things Ellie hadn’t requested. His face changed when he saw her.
“Oh, sweetheart.”
“Wash your hands,” Ellie said, reaching for him.
Naomi showed him where everything was. She explained too much about the charger.
At the door, Ellie called her back for a hug.
“Send me everything,” Naomi said.
“We will.”
***
The meeting room at ten smelled of reheated food. Arun wore the same shirt. Marcus had changed into a sweater. Caleb sat with his coat over the back of his chair.
Elena waited until Naomi was seated.
“Show us.”
Arun opened the comparison.
“Correcting the delivery fixed the unloading forecast. A few later estimates improved too.”
“And the rest?” Naomi asked.
He put the two versions of the day together. The same spread of evening errors remained.
She had imagined this part differently.
“If the early mistakes were causing the decline, correcting them should have done much more,” she said.
“So it doesn’t explain it,” Elena said.
“No.”
“Could you have cut something important out?”
“The smaller case reproduced the original mistakes,” Arun said. “We checked that before changing anything.”
Elena put down her pen.
“Do we actually know the Lattice is malfunctioning?”
“Its forecasts are getting worse.”
“That isn’t what I asked.”
Naomi looked away from the display.
“No. We haven’t established an internal fault.”
Marcus leaned forward. “If someone gives it false information, it can process that information correctly and still give us the wrong answer.”
“We authenticate submissions,” Arun said.
“We authenticate who sent them. A contractor can sign a false report.”
“Or someone could change what happens after the forecast,” Naomi said. “Delay a shipment. Disrupt a schedule.”
She heard how easily the examples came now that they were looking for them.
“Do we have evidence of deliberate interference?” Caleb asked.
“No,” she said.
Elena looked at the display again.
“And nothing tonight rules it out.”
“No.”
“Then I want a defensive assessment running alongside your investigation. Access to the Centers, outside connections, the people supplying our information. Find out what someone could reach and what we need to secure.”
“We can start with internal security,” Caleb said.
“Start there. Call Ortega tonight.”
Naomi stopped writing. His liaison assignment wasn’t due to begin for months.
“Ortega?”
“If someone is interfering with the forecasts, I want to know what else they can reach.”
“We haven’t established that anyone is.”
“I know. I want him to look at how we’d protect the Centers if you’re right about the decline and wrong about the cause.”
“And our investigation?”
“Your investigation continues. I’ll be asking him to secure the system in the meantime. I’m not going to let this keep getting worse while we look at one possible explanation at a time.”
Arun leaned forward.
“We had enough capacity for one comparison tonight. If we’re going to keep testing, we need time set aside.”
“Send me what you need. I’ll take it up with Operations.”
Caleb closed his notebook.
“I’ll call Ortega. I’ll make clear that we haven’t established sabotage.”
“Make that clear,” Elena said. “But I want him here.”
Naomi looked at the corrected day still on the wall. A few forecasts had improved. The decline remained, and now they would be investigating it with military support.
As the meeting broke up, Naomi opened her phone.
There were six messages from Jesse.
In the photograph, Ellie lay against white pillows, her hair stuck to her forehead. A small face emerged from the blanket against her chest. Her sister was smiling directly at the camera.
The last message was from Ellie, using Jesse’s phone.
He’s here. We’re both good. Call when you can, even if it’s late.
Naomi enlarged the photograph with two fingers. He had Ellie’s mouth. Or perhaps that was simply the first familiar thing she could find.
She typed, He’s beautiful.
Then: I’ll call in a few minutes.
Across the table, Arun was closing his laptop.
“Can you leave the comparison up?” she asked.