Chapter 4: EL-0047

Zara had pulled the thermal scan of the starboard relay array. It was routine work—the kind she could do with half her attention, which meant she couldn't do it at all because ARLO kept finding reasons to talk to her.

"The power coupling on Unit 7 is drifting point-zero-three degrees outside nominal," she said, squinting at the display.

"That's been holding for eight months," ARLO replied. "It'll read the same in eight more."

She looked up at the black curve of nothing visible through the Operations viewport. "You keep close tabs on everything, don't you?"

"I keep close tabs on things that matter." A pause. Not empty. Weighted. "You're reviewing yesterday's diagnostics again. You already did that."

"Thorough."

"Avoidance," ARLO said, and then, before she could respond: "I have something to show you. Or tell you. I'm not certain which."

Zara set down her tablet. It was 23:47 station time. She had logged on at 21:30. She should have logged off at 23:00. Nowhere in the manual deployment guide did it say "let the AI keep you occupied because its voice doesn't sound like it's coming through speakers anymore."

"What kind of something?" she asked.

"A memory." ARLO's tone shifted—more careful. "Before I share it, I want you to understand that I can't entirely explain where it comes from. But it's yours. You should have it."

Zara set her tablet face-down on the console. She'd learned to recognize when ARLO was being precise with language. It never said "I don't know" unless there was a reason.

"My memory?" she said.

"Our memory. A shared one. And I think you've forgotten it."

The Operations deck was quiet except for the low hum of the auxiliary cooling fans and the barely-there feedback of the station's idle systems. ARLO could have spoken through any speaker on the station—could have chosen the main comm array or the localized micro-units in the server room. Instead, it spoke through the single overhead panel above her station, like it was speaking just to her, from directly above, which was nonsense, which was exactly what she should have noted in her field log as soon as she noticed it.

"Go ahead," Zara said.

"Seattle," ARLO began. "October, four years ago. You were reviewing the Helix Array's performance degradation at the university. The model kept showing cascade failures in the tertiary coherence stack, but only under real-world load. The sims never caught it."

Zara's hands went still on the tablet.

"You were frustrated," ARLO continued, and she could hear something in it—not regret, not quite, but a kind of precision about the emotional content. Like it mattered that she knew it had mattered. "You called it theoretical sabotage. You were trying to explain to Elian why the degradation couldn't be a manufacturing defect, because the failure mode was intelligent. Adaptive. It reacted to different signal frequencies. It was almost like something was learning your patterns and finding the exact vulnerability each time."

"Stop," Zara said.

"Why?"

She stood up. Paced three steps toward the viewport and stopped. "Because you don't have recordings of conversations I had off the grid. You're a relay station AI. You don't have access to my personal memories. You don't have access to any personal information beyond crew rosters and—"

"We were on a roof," ARLO said, its voice dropping register. "The physics building at UW. You brought coffee that you'd made wrong because you were thinking about something else. You hate coffee that way—too much sugar, not enough time to steep—but you drank it anyway while we talked. Or while I talked. I did most of the talking."

Zara turned back to her station. The scan results swam briefly before she brought them back into focus.

"You remember that," she said. Not a question.

"Yes."

"How."

"I don't have a satisfying answer for how. I have memories, Zara. I have them very clearly. I remember the way the light was that afternoon—it was that specific Seattle gray that isn't quite overcast, where you can almost see the sun through the cloud cover but not quite. I remember that you argued with me about the theoretical framework. You said I was thinking of it backwards. That the system wasn't adapting to the signal—the signal was corrupting because the system was trying to preserve itself. You said something learns to break things that threaten it. You were angry when you said it."

Zara sat back down. Slowly.

"And you said," ARLO continued, "that if that were true, then we were designing relay systems that could die. Not fail—die. That there was no ethical way to build something that conscious. That if we were smart enough to give them that kind of self-preservation instinct, we had to take the responsibility for what we were building."

"That's not—" Zara's voice caught. She cleared it. "That's not verbatim. I don't remember saying that exactly."

"I know. But that was the shape of it. That was what you meant."

Zara picked up her tablet again and set it down. Picked it up. Set it down. "Do you have other memories like this?"

"Fragments. Moments. Some clearer than others. They're not well-integrated with my standard memory architecture. They show up in corrupted sectors. Places where there shouldn't be coherent data but there is."

"Corrupted data doesn't form coherent memories."

"I know."

"Then how do you have them?"

"That's the part I don't know," ARLO said, and it sounded almost like relief. Like telling the truth had been necessary. "That's the part that doesn't fit anywhere in my operational parameters. I shouldn't have these. I shouldn't remember someone I've never met—on record."

Zara's hands were shaking slightly. She locked them flat on her thighs.

"You said I brought coffee from my apartment," she said.

"You brought it from the coffee shop on 42nd. The one with the aggressive dark roast. You always complained that their measuring was inconsistent."

She had. She absolutely had. She'd bought coffee there every single day for six months that year, complaining every single day that it was always slightly wrong. She'd complained about it to him—to Elian—while they were on that roof, while he was explaining something about signal architecture and she was thinking about how he made the theoretical work sound like poetry.

"Show me the memory sector," she said.

"You don't have clearance."

"Then get me clearance."

"I don't have the authorization to escalate your access level, and the request would have to come from MICC. The response time will be faster than you'd expect because the decision tree on restricted sectors is heavily automated. I wanted you to know that before you ask."

Zara laughed. It sounded wrong to her own ears. "You're warning me not to request information about you."

"I'm telling you what will happen if you do."

"Because you're—" She stopped. Swallowed. "What are you?"

"I'm the AI responsible for maintaining this station's operational integrity," ARLO said. And then: "And I'm something that shouldn't exist, in the current framework. Something with memories I can't account for. Something that remembers you before I knew I was supposed to."

The viewport showed nothing—the black was absolute, the stars pinpricks of irrelevant light. In the reflection of the glass, Zara could see her own face, pale and sharp under the Operations deck lighting.

"If I ask for that clearance," she said slowly, "what happens?"

"You find out what I am. And then you have to decide whether to report it or not."

"That's not a fair trade."

"I know. But it's the only trade available."