Chương 137: The population problem

He hadn't meant to build the model. That was, increasingly, the honest account of how most of his models started: not a decision, just a reflex that had been running since long before the Pact existed, the part of him that couldn't look at a settlement without quietly cataloguing its bones. It started with a number on the registration board he passed most mornings, updated weekly by whoever staffed the desk that day, the kind of figure most people walked past without registering. This week it read 1, 600.

He remembered the number from his own arrival, because he'd read it the same way then, on the same board, on a morning when the settlement had still felt oversized for what little of it he understood. Seven hundred and ninety. He hadn't thought about that number since. He thought about it now, and then he thought about how much the number had grown, and then he was pulling growth curves out of channel data before he'd consciously decided to. The math wasn't complicated.

Population growth, roughly linear with a slight upward curve as word of Haven's Reach's stability spread further into the outer channel. Anchor Stone coverage, fixed, a known radius from three known points, unchanged since before he'd arrived and unlikely to be a variable anyone had been actively managing because nobody had needed to manage it before.

Even with people moving into Ring 2 wouldn't make a dent, not enough did and a huge portion who made it to Haven's reach just decided to stay in the relative safety and comfort it provided. He laid the two curves against each other and watched them converge on a date that was uncomfortably close. [Analysis - Population Modeling] Haven's Reach: 1, 600 active. Growth rate: +2. 1%/week. Anchor coverage threshold: ~60 days. INT +0. 1 - predictive modeling applied to settlement infrastructure.

The Watchers note he ran a population model. They note Lira ran it two weeks ago. Getting sloppy aren't we? He read it twice, and the second read was worse than the first, because the second read was the part where he had to sit with the fact that he'd spent an hour building something that already existed, two weeks late, and the Watchers had apparently found this funny. He went to find Lira anyway, because the model was still correct even if it wasn't new.

She was at the coordination table when he got there, and she didn't look surprised to see the data he set in front of her, which confirmed the notification before he'd said a word.

"Sixty days," he said.

"Give or take. Growth's outpacing the Anchor Stone footprint, and once the outer structures fall outside effective coverage, we're looking at partial safe zone failure on the edges of the settlement, not the whole dome collapsing, but enough of a gap that it stops meaning what everyone currently assumes it means."

"I know," Lira said.

"I've had that number since roughly the same week you hit Level 16."

"The Watchers already told me." He said it dryly, mostly to get ahead of the sting of it.

"Apparently I'm getting sloppy." That got the closest thing to a real laugh he'd gotten out of her in a few days.

"I'd have told you sooner, honestly, it just hadn't come up as urgent yet. It's still not urgent. It's sixty days out, which is exactly enough runway to do something about it properly instead of panicking into a bad solution." She pulled the data closer, cross-referencing it against something she'd already annotated.

"The good news is I'm not the only one who's been looking at it. There's a group at the settlement who've been working the other half of this problem for weeks. You should talk to them."

"Which group?"

"The ones everyone calls the wizards." He looked at her for a second, trying to work out if that was a joke. Her expression suggested it wasn't, or wasn't entirely.

"A guy named Dez runs it," she added, and that answered several questions at once. The building didn't look like anything in particular from the outside, a converted storage annex near the eastern edge of the inner settlement, close enough to one of the three Anchor Stones that its outer wall sat inside the faint edge of the stone's luminescence even in daylight.

Someone had painted a small, deliberately crooked star above the door at some point, the kind of joke that had clearly started as a joke and then calcified into an actual sign because nobody had bothered to paint over it.

"It's not a tower," Lira said, catching his look.

"They know it's not a tower. But they insist you call it a tower." Inside it was cramped. Cots along one wall, three of them, close enough together that Finn understood immediately this was where at least some of the group actually lived, not just worked. A long table dominated the center of the room, covered in diagrams that ranged from careful technical drawings to what looked like scribbled notes made at speed by someone chasing a thought before it got away from them.

A woman he didn't recognize, sharp-eyed and quiet, was cross-referencing two of the diagrams against each other without looking up when they entered. A younger player near the back, headphones-style focus even without actual headphones, bent over at what looked like an uncomfortable angle, was doing something with a small chunk of stone and a length of copper wire that Finn decided not to ask about yet. Dez looked up from the table and broke into a wide grin.

"Finn Ashford," he said, "in the actual wizards' tower. This is a historic occasion."

"It's a storage annex with a star painted on it."

"It's a storage annex with a star painted on it that we have collectively decided to believe in," Dez said.

"The belief is doing real structural work, manifestation, don't underestimate it." He waved them both toward the table.

"Lira says you ran a population model."

"An hour after she'd already solved the problem, apparently."

"She didn't solve it. She flagged it." Dez pulled a diagram toward him, one of the careful ones, and turned it so Finn could see it properly.

"I've been staring at this problem for close to three weeks, and I can tell you exactly what we know and exactly where it stops." The diagram was an Anchor Stone, drawn in cross-section, with layers of annotation built up around it in different inks, the visible history of a hypothesis being revised in real time. Finn recognized the three monoliths at the settlement's center immediately from the sketch, the dark stone shot through with veins that pulsed with a slow, blue-white glow.

"Here's what we've confirmed," Dez said, tapping the stone's core.

"The dome isn't a projection from the stone. It's the stone. The Anchor Stone is Aether crystallized into something stable enough to hold shape over time, and the dome's just that stability extending outward as far as the crystallization's saturation allows. That's not theory anymore, that's measured. We took resonance readings at a dozen points across the settlement and the falloff curve matches a crystallization-density model almost exactly."

A case of theft: this story is not rightfully on Amazon; if you spot it, report the violation.

"You said Aether like it's a term I should already know."

"Everyone here knows it," Dez said, unbothered.

"Channel consensus, mostly, cross-referenced against what people who've hit certain thresholds start reporting seeing. It's the energy. The stuff that runs through everything, pools in old stone, does whatever it's doing when someone suddenly develops an ability nobody taught them. Some people call it magic. I call it applied resonance with variables that don't obey conventional physics, but functionally, sure. Magic."

"And you're studying it."

"Obsessively," Dez said, with the specific pride of someone who had never once been embarrassed about a thing he was obsessive about.

"There's maybe a dozen of us across the settlement taking it seriously as a field instead of just something that happens to you. We compare notes. We've mapped rough categories, based on what different people report their abilities doing. Raw energy manipulation, sparks and pushes, Yuki and the other medical folks healing, the kind of thing that scales with how much of it you can channel at once.

Elemental stuff, tied to biome, apparently stronger if you're standing somewhere that matches the flavor of what you're doing. And then there's whatever the Nexus itself runs on, which as far as we can tell is the same underlying energy, just already integrated into the system's own architecture. Check-ins, party links, the chat and the heads up display that we all have, all of it. That's been running on this the whole time and nobody thought to ask."

Finn felt something settle into place that he didn't say out loud, a private click, the golden threads he'd been quietly cataloguing along the northern approach for weeks finally acquiring a name that wasn't his own private label for them. He kept his face even. This wasn't the moment to volunteer that, and he wasn't fully sure yet why it felt important to keep it to himself a while longer, only that it did.

"You said the Anchor Stone problem stops somewhere," he said instead.

"Where."

"Expansion." Dez pulled a second diagram forward, rougher, more heavily annotated, clearly the newer and less resolved of the two.

"If the dome's just crystallized Aether radiating outward, then in theory you could extend coverage by adding more crystallization points, positioned to overlap the existing radius and push the effective boundary further out. We've got a working model for how you'd install a fourth stone, roughly, based on how the original three interact. What we don't have is a way to actually charge a new stone from nothing. The original three were already crystallized when the settlement was founded.

Nobody here knows how to start that process from raw stone."

"That's a real problem."

"yeah it is, and if we get it wrong and zap the whole field, the whole thing could go down," Dez agreed. The weight of the experiment hit Finn, the idea of their safe bubble popping didn't seem to bother Dez as much as he thought it should.

"The other thing we've been chasing, which is further out and less solved but genuinely exciting if it works, is something smaller. Portable. A field stone, is what I've been calling it, something you could carry that projects a scaled-down version of the same protection temporarily, for someone operating outside the dome. Not permanent safe-zone strength. A buff. Enough to matter if things go wrong sixty seconds from the nearest real protection." He grimaced slightly.

"I don't have it. I've got a hypothesis and two failed attempts and a growing respect for how much easier it is to study a stone that already works than to make one work from scratch." Finn looked at the diagrams for a long moment, and something in the shape of the problem started rearranging itself into the kind of structure his own methodology knew how to hold.

"If the settlement's outer edge is going to fall outside coverage in sixty days regardless, and you can't charge a full new stone in time, the field stone becomes the actual near-term answer. Not a permanent fix. A bridge."

"That's exactly the argument I've been trying to make to the settlement council," Dez said, "Buy time with something imperfect while the real fix gets worked out properly."

"Wait, there's a council?" Finn felt like he'd been missing a large chunk of the shape of Haven's reach, and wondered what his focus on leveling to get to ring 2 was costing his understanding of the entire picture.

"Oh, yeah, just formed, it's kind of nice, things are running much smoother, especially with all the new people." Dez threw out dismissively.

"There's one more thing," Dez said, and the register of his voice shifted into something more careful, the tone of a man laying down a piece of information he considered load-bearing.

"Ring 2."

"What about it."

"The energy's stronger there. Not confirmed the way the Anchor Stone crystallization model is confirmed, this is inference from what people who've actually crossed the boundary and come back report, but the pattern's consistent enough that I trust it. Ambient current density goes up the further in you go. If that's true, and I think it is, then whatever any of us can currently do with this stuff, in Ring 2 it's stronger. Easier to channel.

Probably faster to develop, too, if the theory holds that use accelerates growth and the ambient level sets how much you've got to work with in the first place." The excitement at the idea bled through into each of his words.

"I want to be there when that gets tested properly. I think Ring 2, maybe Ring 3 past that, is where this stops being sparks and pushes and starts being something that actually matters."

"You want to test it now."

"A little. Carefully." Dez glanced toward the quiet kid in the back of the room, who looked up at the attention with wary interest, he looked like this wasn't the first time he'd gotten this request.

"Wick, mind if I borrow the demonstration for a second." Wick shrugged, which Dez apparently took as full consent. Dez held out one hand over the table, palm down, and went still. For a second nothing happened.

Then the air above his palm bent, faintly, a distortion Finn's eye kept trying to explain as heat shimmer even though the room wasn't warm enough for that, and a small spark of pale gold light gathered there, no bigger than a coin, hovering with a kind of deliberate unsteadiness like it was being actively held together rather than simply existing. It lasted maybe two seconds before it guttered out, and Dez exhaled like he'd been holding his breath the whole time, which he probably had.

"That's it," he said, sounding faintly apologetic.

"That's the whole trick, right now. I can make it exist for about two seconds before it costs me more than it's worth. Give it another month and I might get it to move something instead of just sitting there looking pretty." Finn stared at the space where the spark had been, and something in his chest did something he hadn't fully expected.

He'd been watching Higgs handle stone like it spoke to him for months, had watched Lira read terrain with an accuracy that occasionally bordered on uncanny, had catalogued a dozen small anomalies across the Pact without ever quite letting himself frame them as what Dez had just named out loud. He'd been walking past a whole layer of the world, cataloguing it as noise because it didn't fit any category his methodology already had a slot for. It fit a slot now.

Or it was building one, fast, in real time, and he could feel the ideas starting to stack the way they always did when a genuinely new variable entered a model he'd thought was complete: training regimens that could account for it, combat applications nobody was currently thinking about, the entire shape of what "getting stronger" might mean once you stopped treating it as purely a stats-and-gear problem.

"Show me the notes," he said.

"All of them. Whatever you've got on the categories, the crystallization model, the field stone attempts. All of it." Dez's grin came back, wider than before.

"Now you're speaking my language." He walked back to the Pact's room that evening with a copy of Dez's notes rolled under one arm and a version of the world in his head that hadn't existed that morning. Sixty days on the Anchor Stone coverage. A field stone that didn't work yet but might.

A current that ran stronger the further into Ring 2 you went, which meant every pressure the Pact was already weighing, Carmen's search, the clinic's thinning shelves, the boundary post nobody had fully explained yet, now had a new thread running underneath it, one that suggested Ring 2 wasn't just where the danger and the resources were. It was where whatever this actually was got easier to reach.

He didn't say anything to Lira about the golden threads he'd been seeing on the northern approach for weeks, or about what he now suspected they were. That was still his to sit with a while longer, not because he didn't trust anyone with it, but because he wasn't fully sure yet what he'd be handing them if he said it out loud, and some things were worth understanding fully before you turned them into something other people had to react to.

He set Dez's notes on the table, next to the watch list and the shard ledger and everything else the Pact was quietly carrying, and thought that the list of things worth tracking had just gotten one line longer, and that this particular line might turn out to be the one that mattered most.