The three weeks after the furnace worked were, Mohamed would think later, the strangest stretch of the entire spring — not because anything dramatic happened, but because nothing did, and by that point in the year he had come to expect that the absence of drama was itself a kind of achievement.
He went to work. He came home. Three or four evenings a week he drove to Poplar Level Road and ran the CVD chamber through practice cycles that produced nothing except confidence — heating cycles, cooling cycles, gas flow tests at rates the blueprint's own knowledge told him he'd eventually need, none of it building toward anything he could point to, all of it building toward a familiarity with the machine that no amount of reading a schematic could substitute for. He wanted to know, before he asked it to grow something as delicate as a nanostructure, exactly how it behaved when nothing was riding on the outcome.
The number in the corner of his vision climbed the same patient ten a day it had climbed since March, indifferent to whether he was watching it or not, and Mohamed had stopped checking it obsessively the way he had in the first weeks and started checking it the way he checked the mail — once a day, out of habit, expecting nothing surprising and rarely disappointed in that expectation.
Ray had mostly stopped asking. Not out of lost interest, exactly, but because a man could only ask *what's the project* so many times before the question stopped producing new information and started producing the same worn answer, and Ray Dombrowski, for all his appetite for other people's business, was not actually a stupid man. He'd settled, sometime in the second week of April, into a running joke instead — *how's the reptiles* — that had outlived its own premise and survived purely as a piece of office furniture, a thing Ray said the way another man might say *how about this weather.*
"Reptiles are good," Mohamed told him, most mornings, and Ray nodded like the answer meant something, and the ritual of it had become, in its own small way, a kind of company — a man who didn't know the real shape of anything, checking in anyway, week after week, simply because that was what people who sat four feet apart for eight hours a day eventually did for each other, whether either of them had chosen it or not.
---
He hit five hundred on a Monday.
**DAILY LOGIN — DAY 70**
**+10 Tech Points**
**Current Tech Points: 500**
Seventy days. Ten weeks, near enough, since a Tuesday in March when a translucent glow had appeared at the edge of his vision and rearranged the entire shape of his life without asking permission, and he sat at his kitchen table that Monday morning with the coffee dripping and looked at a number he'd been circling for so long that arriving at it felt, once again, less like a triumph and more like the quiet click of a lock finally turning.
**Blueprint: BTS-24 Battery — 500 TP**
**Description: A lithium-silicon nanostructure energy storage cell. Utilizes silicon nanowire anode architecture with conformal amorphous coating, high-conductivity electrolyte formulation, and standard pouch cell packaging. Energy density target: 3,500+ Wh/kg.**
**Purchase? Yes / No**
He said yes to the kitchen the same way he'd said it to the CVD chamber fifty days before, out loud, alone, the ritual mattering more than the audience.
**PURCHASE: Blueprint — BTS-24 Battery — 500 TP**
**Blueprint integration complete.**
**Current Tech Points: 0**
The knowledge arrived the way the chamber's schematic had arrived — not a download, not a rush, but the specific, complete clarity of remembering something he'd never learned. He saw the anode: a copper substrate, a forest of silicon nanowires grown from gold catalyst particles, each wire sheathed in a thin amorphous coating to keep it from shattering under the enormous volume change silicon underwent when it absorbed lithium. He understood, instantly, why the coating had to be there — without it, the wires would swell three hundred percent on the first charge, crack, and die within forty cycles, a failure mode that had quietly ended a dozen promising battery startups over the preceding decade, none of whom had known, apparently, what Mohamed now knew standing in his kitchen on a Monday morning in late May.
He knew the electrolyte formulation to two decimal places. He knew the exact percentage of vinylene carbonate additive — two percent, not one, not three — that sacrificed itself on the first charge to build a stable protective film across the anode surface, a film that let the wires survive ten thousand cycles of swelling and shrinking instead of forty.
Nobody on Earth knew that specific number. He knew it the way he knew his own mother's birthday.
He sat down at the kitchen table and reached for the legal pad, because the last fifty days had taught him that a piece of knowledge sitting only in his head was a piece of knowledge he hadn't finished having yet.
*Day 70. Battery blueprint bought. 0 TP.*
*Need: lithium foil, gold nanoparticle catalyst, electrolyte salts (LiPF6, EC/DMC solvent, vinylene carbonate additive), separator membrane, tab material, pouch film.*
*Budget: ~$1,200. Savings after: ~$1,665.*
He looked at the second number a long moment. Sixteen hundred and sixty-five dollars, out of four thousand two hundred that had, seventy days ago, sat in a savings account meaning nothing in particular. He was well past the halfway point of spending it now, and the arithmetic no longer frightened him the way it had in April — not because the risk had gotten smaller, but because he'd had ten weeks to get used to carrying it.
---
Sourcing the materials took longer than the CVD chamber had, and taught him a new category of problem entirely.
The lithium foil was straightforward enough — a specialty metals supplier in Ohio, argon-sealed, shipped overnight in a steel can with a warning label that made the FedEx driver visibly reconsider his afternoon. The separator membrane and pouch film came from a battery hobbyist supplier that mostly served people building drone packs and electric bike conversions, cheap and fast and entirely unbothered by his lack of credentials.
The gold nanoparticle catalyst was where things got difficult.
"Forty-nanometer colloid, you said?" The voice on the other end belonged to a man named Patel at a specialty chemical distributor in New Jersey, the third supplier Mohamed had called that week after the first two had quoted lead times measured in months. "That's a research-grade reagent. You said independent — you got an institutional account with us, or are we opening a new one?"
"New one. Sole proprietorship, Vance Research, Kentucky."
"Mm." Keys clicked on Patel's end. "New accounts under a grand, I can usually push through same-week if the chemistry's not controlled. Gold colloid's not controlled, it's just expensive because gold's expensive and the particle size control is fussy to manufacture. Four milliliters at forty nanometers is gonna run you about six hundred dollars."
Mohamed did the arithmetic against the legal pad's sixteen hundred and sixty-five dollars and felt the number tighten around him slightly. "That's most of my remaining materials budget on one reagent."
"Yeah, that tracks. Gold's gold." A pause, and something in Patel's voice shifted, the specific warmth of a man who dealt with enough small accounts to recognize a real one when he heard it. "Look — you don't necessarily need forty-nanometer for a first pass, if you're prototyping. Twenty-nanometer's about half the price and'll get you in the right ballpark for a proof of concept. You can always dial in the exact particle size once you know the process actually works."
Mohamed sat with that for a second, turning it over against the schematic behind his eyes, which specified forty nanometers precisely and offered no commentary on whether twenty would functionally substitute.
"The schematic calls for forty," he said. "I don't know yet if twenty changes the wire diameter enough to matter."
"Your call. I'm just telling you what I'd do if it were my six hundred dollars and I wasn't sure yet whether the whole thing worked." Patel didn't push further. "You want the forty, I'll get you the forty. Three-day lead, three-fifty deposit up front."
Mohamed looked at the number on the legal pad one more time — the forty-nanometer order would leave him with just over a thousand dollars total, a number that had, seventy days ago, seemed like an entire winter's grocery budget and now seemed, simply, like the cost of finding out whether he'd read the schematic correctly.
"The forty," he said. "I'd rather know the real answer than a close one."
"Smart, if you can afford it." Patel took the order. "I'll ship soon as the deposit clears."
---
The electrolyte was its own small education.
Lithium hexafluorophosphate — LiPF6, the salt his schematic specified at exactly one molar concentration, dissolved in a precise blend of ethylene carbonate and dimethyl carbonate — turned out to be the kind of chemical that came with its own small mythology among the suppliers Mohamed called that week. It was not dangerous the way silane was dangerous, not pyrophoric, not the kind of thing that required a fire marshal's signature. But it reacted with moisture in the air to produce hydrofluoric acid in trace amounts, which meant every supplier he spoke to asked the same first question before anything else.
"You got a dry environment to work in?" This from a woman named Teresa at a battery materials supplier outside Nashville, the fourth call of the morning and, mercifully, the one that finally went somewhere. "Because if you're opening this can in regular room air, you're gonna get moisture contamination in about ninety seconds, and contaminated electrolyte just plain doesn't work. Doesn't matter how good your cell design is."
"I have a glove box. I can build one, at least — acrylic, argon-purged."
"That'll do it, if you seal it right. Test the seal with a strip of lithium foil before you trust it with anything expensive — if the foil stays shiny for an hour, you're dry enough." Teresa's voice had the specific, unhurried patience of someone who'd talked a hundred first-timers through this exact conversation. "You said independent. What're you building?"
"A cell chemistry. Trying to improve on standard lithium-ion energy density."
"Everybody's trying that these days." She said it without any particular skepticism, the flat observation of a woman who'd heard the sentence too many times to invest in it either way. "Well, good luck. Order's a hundred and forty for the salt and solvent blend together, ships Tuesday, and I'm throwing in the vinylene carbonate additive as a sample size since you only need a couple percent of it anyway — no sense charging you for a whole bottle you'll never finish."
"That's generous."
"It's inventory I'd throw out in a year anyway. Use it well." She hung up without ceremony, the specific brisk kindness of someone whose generosity didn't need to be thanked to count.
He built the glove box that same week — quarter-inch acrylic sheet from the plastics supplier on Mellwood, cut with a borrowed table saw, seamed with silicone caulk and clamped overnight, two heavy nitrile gauntlets glued into holes he'd cut with a hole saw he'd bought specifically for that purpose and would almost certainly never use again. He tested the seal the way Teresa had told him to — a strip of lithium foil, sealed inside under an argon purge, checked an hour later under the work light.
Still bright. Still silver. No dulling, no reaction, no moisture getting through.
He'd built one like it in a lab class in 2016 and earned a B-minus for turning the writeup in late. Nine years later, in a storage unit on Poplar Level Road, the grade felt like it had belonged to an entirely different person — a version of him who had sat in that lecture hall bored and unhurried, with no idea that the specific shape of a glove box's seams would ever matter to anything beyond a grade he'd forgotten by the following semester. He wondered, sometimes, in the quiet stretches between one task and the next, how many other pieces of that forgotten education were sitting dormant somewhere behind his eyes, waiting for a blueprint to give them a reason to matter again.
---
He went to his mother's that Sunday, between the ordering and the arrival, because the rhythm of it — Sunday, laundry, pot roast — had become, over three months, the one fixed point in a life that otherwise reorganized itself weekly around whatever the System's catalog offered next.
"You're spending it," Cheryl Vance said, partway through the meal, not quite a question. She'd never asked directly how much the storage unit thing was costing him, but she noticed things, the way she noticed everything, and thirteen weeks of a son who used to buy generic cereal suddenly not flinching at four-hundred-dollar deliveries was not a pattern that escaped her.
"Some of it."
"How much is some."
Mohamed set his fork down. He'd promised himself, back in March, that he'd tell her the real shape of things once he had something solid to hand her instead of a hope and a stalled vacuum gauge, and he still didn't have that — not yet, not until a cell actually worked — but the number itself, at least, felt like something he could give her honestly without handing her the whole impossible truth underneath it.
"About two-thirds of my savings, by the time this next part's paid for."
She didn't flinch, exactly, but something in her face went very still and careful, the particular stillness of a woman doing arithmetic she didn't want to do out loud at her own dinner table.
"That's a lot of money, Mohamed."
"I know."
"You sure about this? Whatever it is?"
He thought about the schematic behind his eyes, the knowledge he couldn't explain the source of, the number two percent that no chemist on Earth currently knew and that he knew the way he knew her birthday. He thought about telling her all of it, right there, pot roast going cold between them.
"I'm sure about the engineering," he said instead, which was true, entirely true, and left out only the one detail he still couldn't find language for. "I've checked it as many ways as I know how to check something. If it doesn't work, it won't be because I didn't do the work properly."
Cheryl Vance studied him a long moment, the same look she'd given him over the telescope, over college, over every patient thing she'd watched him build slowly and correctly instead of fast and careless.
"All right," she said finally. "Then I trust the engineering, even if I don't understand the first thing about it." She picked her fork back up. "But if you go under two thousand dollars, you tell me. I mean it. I've got some put back, and I'm not watching my son eat ramen because he was too proud to ask his mother for a loan."
"I won't need it."
"I didn't ask if you'd need it. I asked you to tell me." She pointed the fork at him, the same gesture she'd used over the telescope years ago. "Eat your roast."
He ate his roast, and drove home that evening thinking that whatever else the last three months had cost him, they had not yet cost him the one thing he'd been most afraid of losing — a mother who trusted his patience even when she couldn't see what it was patient about.
---
By the following Monday, everything sat arranged on the door-slab workbench in unit 114, in the order the schematic insisted it needed to go together — copper foil substrate, gold colloid, lithium in its argon-sealed can, the electrolyte components kept separate and cool in the new glove box, the separator membrane so thin it moved on the air from an open door.
He stood in front of it for a long time, the way he'd stood in front of the CVD chamber's components seven weeks earlier, before he'd known yet whether any of it would work.
**QUEST STATUS: Build your first technological product**
**Progress: Tool complete. Materials sourced. Product blueprint owned. Assembly not yet begun.**
The System, as ever, offered nothing further — no encouragement, no countdown, no acknowledgment that seventy days of patient, unglamorous arithmetic had brought a data analyst from Corporate Drive to the exact edge of the thing it had promised him on a Tuesday morning in March.
Mohamed reached out and touched the corner of the copper foil, cool under the fluorescent light, and thought that whatever came next — however many more evenings it took, however many more things could still go wrong between here and a working cell — this was the closest he had come yet to holding the actual future in his hands instead of just reading about it.
He thought, too, about the version of himself who had stood in this same storage unit ten weeks ago, a hollow-core door balanced across two sawhorses, no furnace, no gas lines, no glove box, nothing except a number climbing ten a day and a stubborn refusal to spend a single dollar before he understood what he was spending it on. That man had been afraid, in a quiet, manageable way, of exactly this moment — the moment where the waiting ran out and the actual work, with all its capacity to fail, finally began. He was still afraid of it, if he was honest. The fear just didn't feel like a reason to stop anymore. It felt, more than anything, like the ordinary cost of doing something that mattered, the same way his savings account's shrinking number was a cost, the same way his mother's careful stillness at the dinner table had been a cost — small debts, patiently paid, against a thing he still couldn't fully explain and had decided, somewhere in the last ten weeks, to trust anyway.
"Tomorrow," he said, to unit 114, the way he'd said it to the apartment, to the storage unit, to every threshold he'd crossed since March, and locked the roll-up door, and drove home through a Louisville evening that had, without his quite noticing the exact date it happened, turned all the way into summer.