16 Glint
Dresden-Nord; Geneva; Goddard, Greenbelt · Monday, 15 September – Monday, 27 October 2031.
The forecast review was in the third-floor room because a customer audit had the big one. Weber took the energy pages himself. Nobody else read past the first line of them.
Power was on plan. Water was a little under. Nitrogen on plan. The controller had marked the heat-export line in yellow, which in her system meant either a mistake or a question for him.
“3.4 times plan,” she said. “In September.”
“Nights?”
“Nights included. I went through the hourly.”
So had he, on Saturday, at the kitchen table. In September the city wanted almost nothing through the new main: showers, two hospitals, the swimming baths at Prohlis. The plan had it carrying a trickle until the heating season and a river after. The meter at the property line had been reading like January for five weeks.
“And the cooling towers?”
“Standby since the end of May,” she said. “Arndt’s note says the controls did it themselves. The main was taking everything, so the towers had nothing to do.”
“Then leave them.”
She waited to see if there was more. There wasn’t. Hoffmann had written on Friday to say her board was delighted, that the figure was the best single month the network had ever booked from an industrial source, and to ask whether it would hold through the winter. The email was clipped to the back of the pack.
“Tell her yes,” Weber said.
He initialed the line, and the one below it, and turned the page to nitrogen.
Lin found Dana in the council cafeteria on the Route de Ferney on Thursday, after the afternoon session, and sat down without a tray. She took a paper napkin from the dispenser and took out a pencil.
“One sphere,” she said. “One station, in Ontario. Three nights.” She wrote the times in a column, the way you’d log them at the eyepiece.
15 Sep 02:41:12 16 Sep 02:41:07 17 Sep 02:41:19
Local time. Dana read down the seconds. “Same minute.”
“Within twenty seconds, once you take out its own motion along the orbit.”
“A face held fixed on the stars comes round four minutes early every night.”
“Three minutes fifty-six.” Lin drew a second column beside the first, 02:37, 02:33, and crossed it out. “It does not do that.”
“So it isn’t fixed on the stars.” Dana turned the napkin toward herself. “It’s turning with the ground.”
“The faces move with the ground,” Lin said. “Yes.”
“Pointing at what?”
Lin put the pencil down. “It is a public list. Anyone can have it.”
“That isn’t an answer.”
Lin stood up. She left the napkin.
Dana sent it to Priya from the tram, photographed against her knee, with three lines underneath. The list was the amateur glint catalog: a few hundred backyard stations logging the flashes off the swarm, about thirty-eight of them with real GPS timing, and most of the good ones were copies of Earl Voss’s build, down to the antenna puck taped to the tube. Earl’s Animas station sat at the top of the timing table. It had since spring.
Can you stack the whole thing and solve for where the faces point?
Priya answered before the tram reached Cornavin. Probably. Each glint is a normal at a time. Give me two weeks.
Priya’s office was on the second floor of Building 34, Monday the sixth of October, with a window onto the parking lot and two monitors turned toward the door. She was smaller than Dana had expected and wore a gray Rutgers sweatshirt with the sleeves pulled down over her knuckles. They had spoken on video perhaps sixty times since 2029.
“You’re shorter on video,” Priya said, and then, because that was wrong: “Taller. In person.”
“I get that a lot,” Dana said, which wasn’t true, and Priya looked relieved anyway.
The map was already up. A world in gray, the land in a lighter gray, and on it small colored ellipses, each one a lock: a place on the ground that one sphere’s face had held, night after night, across every station that had caught it.
“Three hundred and thirty-one in the catalog with enough glints to solve,” Priya said. “Two hundred and seventy-four lock. The rest wander or I don’t have the timing. The locks are good to a few kilometers. Some under two.”
Dana leaned in. The ellipses weren’t spread out. They sat in knots. Northern Virginia. The Columbia Gorge. Central Ohio. Two in Texas. One in Arizona. Taiwan’s west coast. Korea, Japan. Frankfurt, Dublin, the north tip of the Netherlands. One on the coast east of Mumbai.
“That’s not Washington,” Dana said. The Virginia knot was north of Dulles, out in Loudoun County.
“Fifty kilometers off. The lock’s good to three.” Priya clicked, and the Virginia knot resolved into eleven ellipses over farmland that wasn’t farmland anymore. “Not cities. Not capitals. I checked the capitals first. I thought it would be capitals.”
“What is it?”
“Data centers,” Priya said. “And fabs.”
She brought up the tab behind the map.
| sphere | lock_lat | lock_lon | err_km | class | site_MW | sink_frac |
|---|---|---|---|---|---|---|
| S-017 | 39.02 N | 77.47 W | 2.1 | dc | 310 | 0.02 |
| S-044 | 45.61 N | 121.19 W | 3.4 | dc | 240 | 0.00 |
| S-102 | 32.44 N | 99.74 W | 1.8 | dc | 420 | 0.01 |
| S-131 | 24.78 N | 120.99 E | 2.6 | fab | 180 | 0.04 |
| S-166 | 32.88 N | 130.84 E | 2.2 | fab | 150 | 0.03 |
| S-208 | 35.83 N | 140.15 E | 2.9 | dc | 160 | 0.00 |
Dana didn’t trust it. She took the mouse, which Priya allowed, and went looking for the thing she had been afraid of since April. Great Falls, Montana. Minot. Cheyenne. She zoomed in over the missile fields until the base map showed section roads and stock tanks, and found grass. No ellipse within two hundred kilometers of a launch facility. She went to the submarine bases. Nothing at Kings Bay, nothing at Bangor.
“Nothing under about a hundred megawatts,” Priya said. “Anywhere.”
“Steel mills draw that.”
“Aluminum smelters draw a gigawatt. There’s one in Quebec that draws nearly as much as the whole Virginia cluster.” Priya pointed at the empty St. Lawrence. “No sphere.”
Dana sat back. “So it isn’t heat.”
“It’s heat. Look at Abilene.” Priya took the mouse back and opened a time series: S-102’s lock error against date, a flat line at about two kilometers through June and July, then a spike. “Twenty-second of August. Grid emergency, heat wave, they asked the big loads to drop. This campus curtailed for about nineteen hours. Almost to zero.” On the second plot the lock point left the campus, drifted west across Taylor County, tightened and loosened, never settled. “It wandered the whole time. Load came back at 14:10 local on the twenty-third. Lock’s back by 15:02.”
“Within the hour.”
“Within the hour. Every station that had it agrees.”
Dana looked at the knot in Texas, at the knot in Arizona, at Hsinchu. “Heat from thinking,” she said.
“Fabs don’t think.”
“They make the thing that does.”
“That’s a story. It fits, I know it fits. Lots of stories fit fourteen clusters.”
“Then give me another one.”
“I don’t have to have another one.” She said it to the monitor. “I have a face that tracks a place to two kilometers, and the place is hot in a particular way, and when it stops being hot the face loses it. That’s what I have.”
“In a particular way,” Dana said. “A smelter’s hot. A smelter’s a steady gigawatt. Why not a smelter?”
“I don’t know.”
“Because a smelter’s just heat. This is heat that’s computing something.” Dana heard herself and didn’t stop. “Or it’s the people. The machines are where the people who matter sit. It’s watching us through what we built.”
“Then it would sit on Washington,” Priya said. “On Beijing. On the boards of the companies, which aren’t in Abilene, I looked. And in Abilene the people didn’t leave. During the curtailment there were more of them on site, not fewer, they had every engineer in. The people stayed. The load left. It went with the load.”
“So it wants the machines.”
“It sees the heat. That’s the only verb I’ll put my name to.”
“Why heat, though?” Dana said. “It found us in infrared. It’s been looking at a warm planet from L5 for three years. We’re a disk with hot spots.”
“From L5 a data center is nothing. Not a pixel. Not a part in a million of the disk.”
“So it came closer.”
“That’s what the spheres are for, then. That’s your story.” Priya finally turned from the screen. “I don’t like guessing. I want to say that before you put any of this in a cable.”
“I’m not putting it in a cable.”
Priya didn’t answer that. She clicked to a third tab. It was labeled under.
There were two dozen rows on it, and Priya had sorted them by the last column, sink_frac, high to low.
“These are sites that should lock,” she said. “Power’s right. Load’s right. Same kind of work.” Odense. Espoo. Two in Stockholm. A fab on a river in Europe that ran its cooling water straight back into the river. “They put their heat somewhere. A district heating network, mostly. The river, for that one. Not up a tower, not out a roof.” The lock column beside them read weak, weak, none, none, weak.
“So the ones that dump into a city get watched less,” Dana said.
“Seen less.”
“That’s the same thing.”
“It isn’t. I don’t know what it’s doing. I know the lock’s weaker.” Priya scrolled. “Sink fraction over about 0.8, the lock goes weak or goes away. Under 0.3, never. In between it’s a mess.”
Dana thought of a cooling tower plume on a clear night, from thirty thousand kilometers, and then of the same heat going into pipes under a city and coming out as shower water and warm radiators, spread over a hundred square kilometers of roofs.
They spent Tuesday and Wednesday on Table 2. It was the table that would get read: the bands that sorted any site on Earth into fab, data center or nothing, by power draw, load factor, sink fraction, and whether the acid scrubbers on the roof were running; the scrubbers were what made a fab a fab. Priya had the bands from the histograms. Dana wanted the fab power line at 150 MW, so that nobody could hold up a pharmaceutical plant and call the map a joke.
“There are two fabs between 110 and 150,” Priya said. “They lock hard. Both of them.”
“Two.”
“Two out of nineteen. You’d throw them out to look careful.” She brought up the histogram. There was a gap at 108 MW, clean, twenty megawatts wide. “That’s where the data puts it.”
Priya had started typing the number in before Dana said, “Fine. 110.”
“108.”
“108.”
On Wednesday afternoon they ran the bands over every site in Priya’s list, to see what fell in the cracks, and Dana went through the result country by country while Priya fixed the plotting.
Taiwan was bright. Korea, Japan, bright. India had Navi Mumbai and a weak lock outside Hyderabad. Then the cells went dark.
“China,” Dana said.
“I know.”
“There’s nothing. Not weak, nothing.” She paged down. Shanghai, Wuxi, Shenzhen. Big campuses in Guizhou and Inner Mongolia that passed every band in Table 2, high load, low sink fraction, towers running. “These should lock. Half of these should lock hard.”
“I know. I checked the station coverage. Japan and Korea see the same spheres. There are glints over China, plenty. The faces just never sit on anything. I can’t explain it with under. Their sink fraction’s low.”
Dana thought of August, and the object Beijing had called debris. From a few kilometers you wouldn’t need the catalog or the stations or Priya’s two weeks. You would watch the face turn.
“They know,” Dana said. “They’ve known since August what it looks at.”
“That’s another story.”
“It’s another story.”
“Does it go in the paper?”
“No,” Dana said. “Put the cells in. Leave them dark.”
Priya published on Monday, the twenty-seventh of October, at nine in the morning Eastern: a preprint, the map, the catalog cross-match and every line of the code in a public repository, her name alone on all of it. Dana had taken hers off on the Thursday before, and Priya had argued for an hour and then let her.
In Geneva it was two in the afternoon. Dana could have called the PDCO duty officer on Friday, or Sunday, or that morning. At 14:40 her phone lit with a Washington number, and she turned it face down and went to find Lin.
Lin was in the hotel bar on the lake side with a glass of white wine she had nearly finished. Dana put the tablet in front of her with the map open and didn’t say anything. Lin turned it toward the window light and looked a long time at Virginia, then Texas, then she slid it east. Frankfurt. Dublin. Mumbai. Hsinchu bright on its coast, Pyeongtaek, Kumamoto, Inzai.
And west of the water, dark cells. The whole coast and everything behind it, all the way to the mountains.
“Why?” Dana said.
Lin drank the last of the wine. She set the empty glass down on the tablet, over Shanghai, and left it there.