The Dark Forest

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The Dark Forest Page 49

by Cixin Liu


  Although the dazzling battle with debris did receive notice, given the circumstances, it was hard for the computers and humans in the command system to avoid the misconception that the fleet was engaged in a fierce exchange of fire with an enemy space force. Neither person nor machine noticed the tiny figure of Death that had begun to destroy the second row of ships.

  And so, when the droplet charged at Ganges, the hundred warships in the second row were still assembled in a straight line. A death formation.

  The droplet surged like lightning, and in the space of just ten seconds, it passed through twelve warships: Ganges, Columbia, Justice, Masada, Proton, Yandi, Atlantic, Sirius, Thanksgiving, Advance, Han, and Tempest. As in the destruction of the first row, each warship turned red-hot after penetration, before being engulfed in a nuclear fireball that left a million tons of dark red, glowing, metallic magma that then exploded. In this brutal destruction, the lined-up warships were like a two-thousand-kilometer fuse that burned with such intensity that it left behind nothing but ash glowing a dull, dark red.

  One minute and twenty-one seconds later, the hundred ships in the second row had been completely annihilated.

  After passing through the last ship, Meiji, the droplet reached the end of the row and turned another acute angle to charge straight at the first ship in the third row, Newton. During the destruction of the second row, debris from the explosions had raged into the third. The tide of debris included molten metal flung from explosions in the second row as well as mostly cooled metal fragments from the ships of the first. Most of the third-row ships had by now started up their engines and defensive systems and had begun maneuvering, which meant that this time, the ships were not situated along a perfectly straight line, as had been the case for the first and second rows. Nevertheless, the hundred ships were still roughly in line. After the droplet passed through Newton, it sharply adjusted direction and, in a twinkling, crossed the twenty kilometers separating Newton from Enlightenment, now at a three-kilometer offset from the line. From Enlightenment, it turned sharply again, raced toward Cretaceous, which was moving toward the other side, and penetrated it. Following this broken path, the droplet drilled through the ships in the third row one after the other, never dropping its speed below thirty kilometers per second.

  When analysts subsequently observed the droplet’s route, they were amazed to discover that its every turn was a sharp corner, not the smooth curve of a human spacecraft. The diabolical flight path demonstrated a space drive entirely beyond human comprehension, as if the droplet was a shadow without mass, unconcerned with the principles of dynamics, moving at will like the nib of God’s pen. During the attack on the fleet’s third row, the droplet’s sharp changes of direction occurred at a rate of two or three per second, a deathly embroidery needle sewing a thread of destruction through the row’s hundred ships.

  The droplet took two minutes and thirty-five seconds to destroy the third row of ships.

  By this time, all of the warships in the fleet had started their engines. Although the array had lost its shape entirely, the droplet continued to strike the evacuating ships. The pace of destruction slowed, but, at any given time, three to five nuclear fireballs were burning among the ships. Their deathly flames drowned out the glow of the engines, turning them into a cluster of terrified fireflies.

  The fleet command system still had no clue about the true source of the attack and continued to focus its energies on searching for the imaginary invisible enemy fleet. However, subsequent analysis of the massive clouds of vague information transmitted by the fleet revealed that it was at this point that the earliest analysis to come close to the truth was performed by two low-ranking officers in the Asian Fleet. One was Ensign Zhao Xin, an assistant targeting screener on Beifang, and the other was Captain Li Wei, an intermediate EM weapons system controller on Wannian Kunpeng. A transcript of their conversation follows:

  ZHAO XIN: This is Beifang TR317 calling Wannian Kunpeng EM986! This is Beifang TR317 calling Wannian Kunpeng EM986!

  LI WEI: This is Wannian Kunpeng EM986. Please be advised, transmitting ship-to-ship voice communication at this information level is a violation of wartime regulations.

  ZHAO XIN: Is that Li Wei? This is Zhao Xin! You’re who I’m trying to find!

  LI WEI: Hi! I’m glad to know you’re still alive.

  ZHAO XIN: Captain, here’s the thing. I’ve discovered something that I’d like to transmit to the shared command level, but my privileges are too low. Could you help me out?

  LI WEI: My privileges are too low, too. But shared command has plenty of information right now. What do you want to transmit?

  ZHAO XIN: I’ve analyzed a visual image of the battle—

  LI WEI: Shouldn’t you be analyzing radar information?

  ZHAO XIN: That’s a system fallacy. When I analyzed the visual image and extracted only the speed characteristic, do you know what I found? Do you know what’s been going on?

  LI WEI: You seem to know.

  ZHAO XIN: Don’t think I’ve gone crazy—you know me, we’re friends.

  LI WEI: You’re a stone-cold beast. You’ll be the last to go crazy. Go ahead.

  ZHAO XIN: Listen, it’s the fleet that’s gone crazy. We’re attacking ourselves!

  LI WEI:…

  ZHAO XIN: Infinite Frontier attacked Yuanfang, and Yuanfang attacked Foghorn, and Foghorn attacked Antarctica, and Antarctica …

  LI WEI: You’re out of your damn mind!

  ZHAO XIN: That’s what’s happening. A attacks B; and after B is attacked, but before it explodes, it attacks C; and after C is attacked but before it explodes, it attacks D.… It’s like every warship that was hit attacked the next warship in the row—like an infection, damn it, or a game of pass the parcel, but to the death. It’s insane!

  LI WEI: What weapons are they using?

  ZHAO XIN: I don’t know. I picked up a projectile in the image, so frickin’ tiny and so frickin’ fast, way the hell faster than your railguns. And incredibly precise. It hit the fuel tanks every single time!

  LI WEI: Send me the analysis.

  ZHAO XIN: I’ve sent it over, the original data and vector analysis both. Take a look, god damn it!

  Ensign Zhao Xin’s analysis, though unconventional, was pretty close to the truth. Li Wei took half a minute to study the information he sent over. In that time, another thirty-nine warships were destroyed.

  LI WEI: I’ve noticed something about the speed.

  ZHAO XIN: What speed?

  LI WEI: The speed of the small projectile. Its speed when it’s launched from each warship is slightly slower. Then it accelerates to thirty kilometers per second during flight. Then it strikes the next warship, and when it launches from that warship prior to the explosion, its speed is a little slower. Then it accelerates.…

  ZHAO XIN: That doesn’t mean anything.…

  LI WEI: What I mean is … it’s a little like drag.

  ZHAO XIN: Drag? How so?

  LI WEI: Every time this projectile passes through a target, the drag slows it down.

  ZHAO XIN: I see what you’re doing. I’m not stupid. You said “this projectile” and “passes through a target.” … Is it a single object?

  LI WEI: Take a look outside. Another hundred ships have exploded.

  This conversation took place not in the modern language of the fleet but in twenty-first-century Mandarin. From the mode of speech, it was obvious that the two were hibernators. There were few hibernators serving in the fleet, and although most of them had awakened while still very young, they still lacked a modern person’s capacity to absorb information, which meant that most of them carried out relatively low-level duties. It was later discovered that the vast majority of officers and soldiers who recovered their senses and good judgment the earliest during the grand destruction were hibernators. These two officers, for instance, despite being at a level that did not even permit them the use of the ship’s advanced systems, were nonetheless able to perform a remar
kable piece of analysis.

  Zhao Xin and Li Wei’s information was not passed up the fleet command system, but the system’s analysis of the battle was headed in the right direction. Realizing that the invisible enemy force posited by the computer decision-making system didn’t exist, attention was now focused on analyzing the aggregated battle information. After a search and match on massive amounts of data, the system finally discovered the continued existence of the droplet. The image of the droplet extracted from battle recordings was unchanged apart from the addition of a propulsion halo at the tail. It was still a perfect droplet shape, only this time what was reflected as it sped onward was the glow of nuclear fireballs and metal magma, glaring brightness alternating with dark red. It looked like a drop of burning blood. Further analysis arrived at a model of the droplet’s attack path.

  Various scenarios for the Doomsday Battle had been concocted during two centuries of the study of space strategy, but in the minds of strategists, the enemy had always been big. Humanity would meet the main part of the mighty Trisolaran force on a space battlefield, with every warship a fortress of death the size of a small city. They had imagined every extreme form of weapons and tactics the enemy could possibly possess, the most terrifying of which involved the Trisolaran Fleet launching an attack using antimatter weapons, and obliterating a stellar-class battleship with antimatter the size of a rifle bullet.

  But now the combined fleet had to face facts: Their only enemy was a tiny probe, one drop of water out of the enormous ocean of Trisolaran strength, and this probe attacked using one of the oldest and most primitive tactics known to human navies: ramming.

  Roughly thirteen minutes passed from the moment the probe started its attack until the fleet command system arrived at the correct assessment. Given the complex and grim battlefield conditions, this was fairly quick, but the droplet was quicker. In twentieth-century naval battles, there might have been time for commanders to be summoned to the flagship for a conference once the enemy fleet appeared on the horizon. But space battles were measured in seconds, and in that thirteen-minute span, more than six hundred warships were destroyed by the probe. Only then did humanity realize that command of a space battle was beyond their reach. And due to the sophon block, it was beyond the reach of their artificial intelligence as well. Purely in terms of command, humanity might never have the capacity to engage in a space battle with Trisolaris.

  The speed of the droplet’s strikes and its invisibility to radar meant that defensive systems on the first ships hit never responded. But as the distance between the warships grew and the droplet’s striking distance increased, defensive systems on all warships were recalibrated based on the droplet’s target characteristics. This meant that Nelson was the first ship to attempt to intercept, using laser weapons to increase the accuracy of firing on the small, high-speed target. When struck by the multiple beams, the droplet emitted a powerful visible light, even though the Nelson had fired gamma-ray lasers that were invisible to the naked eye. The droplet’s imperceptibility to radar had never been understood, since it had a completely reflective surface and a shape that was perfectly diffuse, but perhaps the ability to alter the frequency of reflected electromagnetic waves was the secret to this invisibility. The light emitted from the droplet when it was struck was so bright it drowned out the nuclear fireballs going off all around it, forced the monitoring systems to dim their images to avoid damage to their optical components, and caused sustained blindness to anyone who looked directly at it. In other words, this superpowerful light was indistinguishable from darkness in its effect. The droplet, wrapped in this all-engulfing light, entered Nelson and was extinguished, plunging the battlefield into pitch darkness. Moments later, the nuclear fireballs reestablished their dominance and the droplet emerged from Nelson unscathed and sped straight for Green, eighty-odd kilometers away.

  Green’s defense system switched over to EM-based kinetic weapons to intercept the attacking droplet. The metal shells fired by the railgun possessed enormous destructive power, and the kinetic energy inherent in their high speed meant that every shell that struck the target hit with the force of a bomb. Against ground targets, they would flatten a mountain in no time at all. The droplet’s relative velocity only added to the shells’ energy, but when they struck, the droplet slowed only slightly before it adjusted its propulsion and recovered its speed. Under a dense hail of shells, it flew straight at Green and penetrated it. Under the ultrahigh magnification microscope, the droplet’s surface would still be mirror-smooth and totally scratch-free.

  Strong-interaction material differs from ordinary matter like solid differs from liquid. The attacks on the droplet by human weapons were like waves striking a reef. Damaging it was impossible, which meant that nothing in the Solar System could destroy it. It was untouchable.

  The fleet command system had just stabilized itself, only to be plunged once again into chaos. This time, its despair over the loss of every weapon available to it meant it would not recover from this collapse.

  The merciless slaughter in space continued. As the distance between ships grew, the droplet accelerated and had soon doubled its speed to sixty kilometers per second. Exhibiting a cool and precise intelligence in its continuous attacks, it solved the traveling salesman problem in local regions with perfect accuracy, hardly ever retracing its path. With its targets in constant motion, the droplet accomplished a huge range of accurate measurements and complex calculations effortlessly and at high speed. In the course of its intensely focused massacre, it would occasionally veer off to the edges of the group of ships to quickly dispatch a few outliers and arrest the fleet’s inclination to flee in that direction.

  The droplet usually made precise strikes on the ships’ fuel tanks—whether it found them by real-time location detection or with the use of a stored database of every ship’s structure provided by the sophons was unknown. However, in around 10 percent of the targets, the droplet did not strike the tanks. The destruction of those ships did not involve fusion in the nuclear material, so it took a comparatively long time for the red-hot ships to finally explode, a brutal situation in which the crew suffered under high temperatures before burning to death.

  The evacuation of the ships did not go smoothly. It was too late to enter deep-sea state, so the warships could only evacuate at Ahead Three acceleration, which made scattering impossible. Like a sheepdog racing alongside a flock, the droplet executed occasional blocking strikes at different positions at the fleet’s edges to keep it in shape.

  Space was full of cooled or still-molten debris and large chunks of warships, so ship defense systems had to continually sweep their flight path with lasers or railguns. The fragments formed glittering, flaming arcs that wrapped each ship in a brilliant canopy. Yet some debris still slipped through the defenses and caused serious hull damage and even loss of navigational capability when they struck the ships directly. Collision with larger fragments was fatal.

  Despite the collapse of the fleet command system, High Command remained in charge during evacuation, but the density of the initial formation meant collisions between ships were unavoidable. Himalaya and Thor collided head-on at high speed and were smashed to bits. Messenger rear-ended Genesis, and the air that leaked like a hurricane through the gashes tore into both ships and blew personnel and other objects out into space, forming tails that dragged along in the wake of the two giant wrecks.

  Most horrifying of all was what happened to Einstein and Xia, whose captains bypassed system protections via remote control mode and entered Ahead Four acceleration. None of their personnel was protected by deep-sea state. Images transmitted from Xia showed a hangar emptied of fighters but occupied by over a hundred people who were flattened against the deck by the high gs once acceleration began. From this vantage point, observers saw crimson flowers of blood bloom on the white space the size of a football field, forming extremely thin layers that spread out and ultimately merged into one under the immense force.… Spherical ca
bins presented the ultimate horror: At the beginning of hypergravitation everyone inside slid to the bottom, and then the devil’s weighty hand squished them all into a lump, as if balling up a pile of clay men, with no time for anyone to even scream. The only sound was of shattering bones and viscera squeezing out. Then the pile of flesh and bones was submerged in a bloody liquid that turned eerily clear once the solids were precipitated out by the high gs, its surface flat and motionless as a mirror under the intense force. It seemed solid, and the formless pile of flesh, bone, and organs lay within it like rubies sealed in crystal.…

  Afterward, people initially thought that putting Einstein and Xia into Ahead Four had been a mistake made during the chaos, but further analysis repudiated this view. Using the remote control mode to bypass the stringent procedures required by the warship control system prior to executing Ahead Four acceleration, including the confirmation that all personnel were in deep-sea state, involved a complicated series of operations that were unlikely to have been made in error. In the information transmitted from the two ships, it was also found that, prior to entering Ahead Four, Einstein and Xia had been using fighters and smaller craft to transport personnel outside. They did not enter Ahead Four until the droplet drew nearer and neighboring warships began to explode. This suggested that they intended to escape the droplet at top acceleration to preserve humanity’s warships, but even Einstein and Xia were unable to evade the droplet’s clutches. The keen-eyed death god noticed that two ships were accelerating far faster than the average rate of the group and swiftly caught up to them and destroyed the ships and their lifeless cargo.

 

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