Godlike Machines Read online

  “You weren’t going to make it to that band.”

  “That was when the IAU telegram came in to my inbox. I didn’t even open it at first; it wasn’t as if IAU telegrams were exactly unusual. It probably just meant that a supernova had gone off in a remote galaxy, or that some binary star was undergoing a nova. Nothing I needed to get excited about.”

  “But that wasn’t what it was about.”

  “It was the Matryoshka, of course—the emergence event, when it came into our solar system. A sudden influx of cosmic rays, triggering half the monitoring telescopes and satellites in existence. They all turned to look at the point where the machine had come in. A flash of energy that intense, it could only be a gamma-ray burst, happening in some distant galaxy. That’s what everyone thought it was at first, especially as the Matryoshka came in high above the ecliptic, and well out of the plane of the galaxy. It looked extragalactic, not some local event. Sooner or later, though, they crunched the numbers-triangulated from the slightly different pointing angles of the various spacecraft and telescopes, the slightly different detection times of the event—and they realized that, whatever this was, it had happened within one light hour of the Sun. Not so much on our doorstep, cosmically speaking, as in our house, making itself at home.” Nesha smiles at the memory. “There was some wild theorizing to begin with. Everything from a piece of antimatter colliding with a comet, a quantum black hole evaporating, to the illegal test of a Chinese super-weapon in deep space. Of course, it was none of those things. It was spacetime opening wide enough to vomit out a machine the size of Tasmania.”

  “It was a while before they found the Matryoshka itself.”

  Nesha nods. “You try finding something that dark, when you don’t even know in which direction it’s moving.”

  “Even from the Tereshkova, it was hard to believe it was actually out there.”

  “To begin with, we still didn’t know what to make of it. The layered structure confused the hell out of us. We weren’t used to analyzing anything like that. It was artificial, clearly, but it wasn’t made of solid parts. It was like a machine caught in the instant of blowing up, but which was still working, still doing whatever it was sent to do. Without getting closer, we could only resolve the structure in the outer layer. We didn’t start calling it Shell 1 until we knew there were deeper strata. The name Matryoshka didn’t come until after the first fly-by probes, when we glimpsed Shell 2. The Americans called it the Easter Egg for a little while, but eventually everyone started using the Russian name.”

  I know that when she talks about “we”, she means the astronomical community as a whole, rather than her own efforts. Nesha’s involvement—the involvement that had first made her famous, then ruined her reputation, then her life-did not come until later.

  The emergence event—the first apparition—caught humanity entirely unaware. The Matryoshka had come out of its wormhole mouth—if that was what it was—on an elliptical, sun-circling trajectory similar to a periodic comet. The only thing non-cometary was the very steep inclination to the ecliptic. It made reaching the Matryoshka problematic, except when it was swinging near the Sun once every 12 years. Even with a massive international effort, there was no way to send dedicated probes out to meet the artifact and match its velocity. The best anyone could do was fling smart pebbles at it, hoping to learn as much as possible in the short window while they slammed past. Probes that had been intended for Mars or Venus were hastily repurposed for the Matryoshka flyby, where time and physics made that possible. It was more like the mad scramble of some desperate, last-ditch war effort than anything seen in peacetime.

  There were, of course, dissenting voices. Some people thought the prudent thing would be to wait and see what the Matryoshka had in mind for us. By and large, they were ignored. The thing had arrived here, hadn’t it? The least it could expect was a welcome party.

  As it was, the machine appeared completely oblivious to the attention—as it had continued to do through the second apparition. The third apparition—that was different, of course. But then again our provocation had been of an entirely different nature.

  After the probes had gone by, there was data to analyze. Years of it. The Matryoshka had fallen out of each reach of our instruments and robots, but we had more than enough to keep busy until the next apparition. Plans were already being drawn up for missions to rendezvous with the object and penetrate that outer layer. Robots next time, but who knew what might be possible in the 24 years between the first and third apparitions?

  “The scientists who’d had their missions redirected wanted a first look at the Matryoshka data,” Nesha says. “The thinking was that they’d get exclusive access to it for six months.”

  “You can’t blame them for that.”

  “There was still an outcry. It was felt that an event of this magnitude demanded the immediate release of all the data to the community. To the whole world, in fact. Anyone who wanted it was welcome to it. Of course, unless they had a lightning fast internet connection, about ten million terabytes of memory, their own Cray... they couldn’t even begin to scratch the surface. There were collaborative efforts, millions of people downloading a fragment of the data and analyzing it using spare CPU cycles, but they still couldn’t beat the resources of a single well-equipped academic department with a tame supercomputer in the basement. Above all else, we had all the analysis tools at hand, and we knew how to use them. But it was still a massive cake to eat in one bite.”

  “And did you?”

  “No—it made much more sense to focus on what we were good at. The data hinted that the elements of the outer layer-Shell 1—were bound together by some kind of force-field. The whole thing was breathing in and out, the components moving as if tied together by a complex web of elastic filaments. The thing is, stars breathe as well. The pulsation modes in a solar-type star aren’t the same as the pulsation modes in the Matryoshka. But we could still use the same methods, the same tools and tricks, to get a handle on them. And of course, there was a point to all of that. Map the pulsations in a star and you can probe the deep interior, in exactly the same way that earthquakes tell us about the structure of the Earth. There was every expectation that the Matryoshka’s pulsations might tell us something about the inside of that as well.”

  “I guess you didn’t have a clue what you’d actually find.”

  Nesha gives a brief, derisive laugh. “Of course not. I wasn’t thinking in those terms at all. I was just thinking of frequencies, harmonics, Fourier analysis, caustic surfaces. I wasn’t thinking of fucking music.”

  “Tell me how it felt.”

  “The first time I ran the analysis, and realized that the pulsations could be broken down into notes on the western chromatic scale? Like I was the victim of a bad practical joke, someone in the department messing with the data.”

  “And when you realized you weren’t being hoaxed?”

  “I still didn’t believe it-not to begin with. I thought I must have screwed up in my analysis somewhere, introduced harmonics that weren’t real. I stripped the tools down and put them together again. Same story: notes, chords, melody, and counterpoint. Music. That’s when I started accepting the reality of it. Whatever we were dealing with—whatever had come to find us—wasn’t what we had assumed. This wasn’t just some dumb invention, some alien equivalent of the probes we had been sending out. The Matryoshka was a different order of machine. Something clever and complex enough to sing to itself. Or, just possibly, to us.” Nesha hesitates and looks at me with an unwavering gaze. “And it was singing our music. Russian music.”

  “I know,” I say. “It’s been in my head since I came back.”

  No one had ever gone this deep before.

  The Progress had travelled fifty kilometers into the Machine-through two layers of orbiting obstruction, each of which was ten kilometers in depth, and through two open volumes fifteen kilometers thick. Beneath lay the most difficult part of its journey so far. Though the existe
nce of Shell 3 had been known since the second apparition, no hard data existed on conditions beneath it.

  The barrier was actually a pair of tightly nested spheres, one slightly smaller than the other. The shell’s material was as dark as anything already encountered, but—fortuitously for us—the spheres had holes in them, several dozen circular perforations ranging in width from one to three kilometers, spotted around the spheres in what appeared to be an entirely random arrangement. The pattern of holes was the same in both spheres, but because they were rotating at different speeds, on different, slowly precessing axes, the holes only lined up occasionally. During those windows, glimpses opened up into the heart of the Matryoshka. A blue-green glow shone through the winking gaps in Shell 3, hinting at luminous depths.

  Shortly we’d know.

  “How’s he doing?” Galenka asked, from the pilot’s position. I had just returned from the orbiter, where I had been checking on Yakov. I had fixed a medical cuff to his wrist, so that Baikonur could analyze his blood chemistry.

  “Not much change since last time. He just looks at me. Doesn’t say or do anything.”

  “We should up the medication.” She tapped keys, adjusting one of the Progress’s camera angles. She was holding station, hovering a few kilometers over Shell 3. Talking out of the side of her mouth she said, “Put him into a coma until we really need him.”

  “I talked to Baikonur. They recommend holding him at the current dosage until they’ve run some tests.”

  “Easy for them to say, half a solar system away.”

  “They’re the experts, not us.”

  “If you say so.”

  “I think we should let them handle this one. It’s not like we don’t have other things to occupy our minds, is it?”

  “You have a point there, comrade.”

  “Are you happy about taking her in? You’ve been in the chair for a long time now.”

  “It’s what we came to do. Progress systems are dropping like flies, anyway—I give this ship about six hours before it dies on us. I think it’s now or never.”

  I could only bow to her superior wisdom in this matter.

  In the years since the last apparition, the complex motion of the spheres had been subjected to enormous scrutiny. It had been a triumph to map the holes in the interior sphere. Despite this, no watertight algorithm had ever been invented to predict the window events with any precision. The spheres slowed down and sped up unpredictably, making a nonsense of long-range forecasts. Unless a window was in view, the movement of the inner sphere could not be measured. Radar bounced off its flawless surface as if the thing was motionless.

  All Galenka could do was wait until a window event began, then make a run for it—hoping that the aperture remained open long enough for the Progress to pass through. Analysis of all available data showed that window events occurred, on average, once in every 72-minute interval. But that was just an average. Two window events could fall within minutes of each other, or there might be a ten hour wait before the next one. The window was tight—the Progress would have to begin its run within seconds of the window opening, if it had a chance of slipping through in time. I didn’t envy Galenka sitting there with her finger on the trigger, like a gunslinger waiting for her opponent to twitch.

  In the event, a useful window—one that she could reach, in the allowed time-opened within 40 minutes of our conversation. Looking over her shoulder at the screens, I could hardly make out any change in Shell 3. Only when the Progress was already committed-moving too quickly to stop or change course—did a glimmer of blue-green light reassure me that the window was indeed opening. Even then, it hardly seemed possible that the Progress would have time to pass through the winking eye.

  Of course, that was exactly what happened. Only a slight easing of the crease on the side of Galenka’s mouth indicated that she was, for now, breathing easier. We both knew that this triumph could well be very short-lived, since the Progress would now find it even more difficult to remain in contact with the Tereshkova. Since no man-made signal could penetrate Shell 3, comms could only squirt through when a window was open, in whatever direction that happened to be. The swarm of relay microsats placed around the Machine were intended to intercept these burst transmissions and relay them back to the Tereshkova. Its puppet-strings all but severed, the robotic spacecraft would be relying more and more on the autonomous decision-making of its onboard computers.

  I knew that the mission planners had subjected the Progress to every eventuality, ever scenario, they could dream up. I also knew that none of those planners seriously expected the secrets of the Matryoshka to bear the slightest resemblance to their imaginings. If it did, they’d be brutally disappointed.

  The rear-looking camera showed the window sealing behind the Progress. The inside surface of Shell 3 was as pitilessly dark as its outer skin, yet all else was aglow. I shivered with an almost religious ecstasy: soon the secrets revealed here would be in the hands of the entire human species, but for now—for a delicious and precious interval—the only two souls given this privilege were Galenka and I. No other thinking creature had seen this far.

  Beneath Shell 3 was another empty volume-Gap 3. Then there was another sphere. We were looking at the central 60 kilometers of the Matryoshka, three quarters of the way to whatever lay at its heart. Shell 4 looked nothing like the dark machinery we had already passed through. This was more like a prickly fruit, a nastily evolved bacterium or some fantastically complex coral formation. The surface of the sphere was barely visible, lost under a spiky, spiny accretion of spokes and barbs and twisted unicorn horns, pushing out into the otherwise empty band gap for many kilometers. There were lacy webs of matter bridging one spike to the next. There were muscular structures like the roots of enormous trees, winding and entwining around the bases of the largest outgrowths. It was all ablaze with blue-green light, like a glass sculpture lit from within. The light wavered and pulsed. Shell 3 did not look like something which had been designed and built, but rather something which had grown, wildly and unpredictably. It was wonderful and terrifying.

  Then the signal ended. The Progress was on its own now, relying on its hardwired wits.

  “You did well,” I told Galenka.

  She said nothing. She was already asleep. Her head did not loll in zero gravity, her jaw did not droop open, but her eyes were closed and her hand had slackened on the joystick. Only then did I realise how utterly exhausted she must have been. But I imagined her dreams were peaceful ones.

  She had not failed the mission. She had not failed Mother Russia and the Second Soviet.

  I left her sleeping, then spent two hours attending to various housekeeping tasks aboard the Tereshkova. Since we were only able to use the low-gain antenna—the high-gain antenna had failed shortly after departure—the data that the Progress had already sent back needed to be organized and compressed before it could be sent onwards to Earth. All the data stored aboard the Tereshkova would get home eventually-assuming, of course, that we did—but in the meantime I was anxious to provide Baikonur with what I regarded as the highlights. All the while I checked for updates from the Progress, but no signal had yet been detected.

  Without waiting for mission control to acknowledge the data package, I warmed some food for myself, took a nip of vodka from my private supply, and then carried my meal into the part of the Tereshkova loosely designated as the commons/recreational area. It was the brightest part of the ship, with plastic flowers and ornaments, tinsel, photographs, postcards, and children’s paintings stuck to the walls. I stationed myself against a wall and watched television, flicking through the various uplink feeds while spooning food into my mouth. I skipped soaps, quizzes, and talk shows until I hit one of the main news senders. The main state news channel showed me what the rest of the world—or the rest of the Soviet Union, at least—was getting to hear about us. The Tereshkova had been big news during its departure, but had fallen from the headlines during the long cruise out to the
Matryoshka. Now it was a top-listed item once more, squeezing out other stories.

  The channel informed its viewers that the ship had successfully launched a robotic probe through Shells 1 and 2, a triumph equal to anything achieved during the last two apparitions, and one which—it was confidently expected—would soon be surpassed. The data already returned to Earth, the channel said, offered a bounty that would keep the keenest Soviet minds engaged for many years. Nor would this data be hoarded by Russia alone, for with characteristic Soviet generosity, it would be shared with those “once-proud” nations who now lacked the means to travel into space. The brave cosmonauts who were reaping this harvest of riches were mentioned by name on several occasions. There was, of course, no word about how one of those brave cosmonauts had gone stark raving mad.

  I knew with a cold certainty that they’d never tell the truth about Yakov. If he didn’t recover they’d make something up—an unanticipated illness, or a debilitating accident. They’d kill the poor bastard rather than admit that we were human.

  “I went to see him,” Galenka said, startling me. She had drifted into the recreation area quite silently. “He’s talking now—almost lucid. Want us to let him out of the module.”

  “Not likely.”

  “I agree. But we’ll have to make a decision on him sooner or later.”

  “Well, there’s no hurry right now. You all right?”

  “Fine, thanks.”

  She had rested less than three hours, but in weightlessness—even after an exhausting task—that was enough. It was a useful physiological adaptation when there was a lot of work to be done, but it also meant that ten days in space could feel like thirty back on Earth. Or a hundred.

  “Go and sleep some more, you want to. The Progress calls in, I’ll wake you.”

  “If it calls in.”

  I offered a shrug. “You did everything that was expected of you. That we got this far ...”

  “I know; we should be very proud of ourselves.” She stared at the screen, her eyes still sleepy.