Cixin Liu - The Dark Forest

Then Rey Diaz described the progress of his plan. After five years of research, the digital star model for super-high-yield nuclear weapons had been completed and was now being thoroughly debugged.

Next, the PDC scientific advisory panel presented a report on its feasibility study of the two Wallfacers’ plans.

The advisory panel felt that although there were in theory no obstacles to Hines’s Resolving Imager, the technical difficulties far exceeded current conditions, and modern CT scanning was about as far from RI technology as black-and-white film was from modern high-definition cameras. Data processing presented the biggest technical hurdle to the RI device, because scanning and modeling an object the size of the human brain with neuron-level precision required power that was unavailable to modern computers.

The obstacle to Rey Diaz’s stellar bomb was the same: present computing power was insufficient. After inspecting the calculations required by the completed portion of the model, the panel’s expert group felt that the most powerful of today’s computers would take twenty years to model a hundredth of a second of the fusion process. Since the model would need to be run repeatedly in the course of research, practical application was an impossibility.

The panel’s chief computer scientist said, “Right now, computer technology based on traditional integrated circuits and Von Neumann architecture is nearing the limit of its technological development. Moore’s law is going to collapse. Of course, we can still squeeze out the last few drops of lemonade from these traditional electronic and technological lemons. In our opinion, even given the present deceleration in supercomputer progress, the computing power required by the two plans is still achievable. It just requires time. Optimistically, twenty to thirty years. Those goals, if they are reached, will represent the peak of human computing technology, and any further progress will be difficult. With frontier physics under sophon lockdown, the next-gen and quantum computers that we once dreamed of are now very unlikely to be realized.”

“We’ve reached the wall that the sophons have erected across our scientific road,” the chair said.

“Then there’s nothing that we can do for twenty years,” Hines said.

“Twenty years is the most optimistic estimate. As a scientist, you ought to know what cutting-edge research is like.”

“Then the only thing to do is hibernate and wait the arrival of capable computers,” Rey Diaz said.

“I’ve decided to hibernate, too,” Hines said.

“If that’s the case, then I will ask the two of you to greet my successor in twenty years,” the chair said with a smile.

The mood of the hearing relaxed. Now that the two Wallfacers had decided to enter hibernation, the hearing’s participants sighed with relief. The emergence of the first Wallbreaker and his Wallfacer’s suicide had dealt a heavy blow to the entire project. Tyler’s suicide in particular had been a foolish act. If he had lived, people would still be in doubt about whether the mosquito swarm had really been his plan. His death was tantamount to a final confirmation of the existence of the terrible plan. He had vaulted out of the vicious cycle at the cost of his life, prompting increasing murmurs of criticism of the Wallfacer Project among the international community. Public opinion demanded further restrictions on Wallfacer power, but the very nature of the Wallfacer Project meant that too many restrictions would make it difficult for the Wallfacers to conduct their strategic deceptions, rendering the entire project meaningless. The Wallfacer Project possessed a leadership structure that human society had never before seen, and it required time to adjust and adapt to it. It was clear that the hibernation of the two Wallfacers would provide a buffer period for that to take place.

A few days later, in a top-secret underground structure, Rey Diaz and Hines entered hibernation.

Luo Ji found himself in an ominous dream. He dreamt he was walking the halls of the Louvre. It was a dream he had never had before, because the past five years of bliss had given him no cause to dream of previous joys. In this dream, he was alone with the loneliness that had been absent for five years. His every footstep reverberated through the palace halls, and something seemed to leave him with every reverberation, until at last he dared not take another step. In front of him was the Mona Lisa . She no longer smiled, but looked on him with compassion in her eyes. When his footsteps stopped, the sound of the outdoor fountains trickled in and gradually grew louder, at which point he awoke to find that the sound was coming from the real world. It was raining.

Luo Ji reached out to hold his beloved’s hand, and discovered that his dream had become a reality.

Zhuang Yan was gone.

He rolled out of bed and entered the nursery, where a lamp was softly glowing, but Xia Xia wasn’t there. On the little bed, tidily made up, was one of Zhuang Yan’s paintings, a favorite of both of theirs. It was practically blank, and from a distance it looked like a sheet of paper. Closer in, you could see fine reeds in the lower left, and in the upper right the traces of a vanishing goose. In the blank center were two infinitesimally tiny people. But now, a graceful line of text had been added to it:

My love, we’re waiting for you at doomsday.

It was bound to happen sooner or later. Could such a dream life last forever? It was bound to happen, so don’t worry. You’re mentally prepared for it, Luo Ji told himself, but a wave of dizziness came over him. As he picked up the painting and went toward the living room, his legs quavered and he felt as if he was floating.

The living room was empty, but the embers in the fireplace glowed a hazy red that made everything look like melting ice. The rain continued outside. It was to the same sound of rain that she had walked out of his dreams five years ago, and now she had returned to them, taking their child with her.

He picked up the phone to call Kent, but then he heard soft footsteps outside. A woman’s footsteps, but not Zhuang Yan’s. Even so, he tossed the phone down and went outside.

Luo Ji immediately recognized the slender figure standing on the porch in the rain, even though he could only see a silhouette.

“Hello, Dr. Luo,” Secretary General Say said.

“Hello… Where are my wife and child?”

“They’re waiting for you at doomsday,” she said, repeating the words in the painting.

“Why?”

“This is a PDC resolution, to let you work and fulfill your Wallfacer responsibilities. No harm will come to them, and children are better suited to hibernation than adults.”

“You’ve kidnapped them! That’s criminal!”

“We did not kidnap anyone.”

Luo Ji’s heart quaked at the implications of Say’s statement, and he pushed them out of his mind rather than face that reality. “I said that having them here was part of the plan!”

“But after a thorough investigation, the PDC decided that it was not part of the plan, and so took steps to prompt you to get to work.”

“Even if it’s not kidnapping, you took away my child without my consent, and that’s against the law.” When he realized who he was including in “you,” his heart quaked again and he leaned back feebly against the pillar behind him.

“True, but it is well within acceptability. Do not forget, Dr. Luo, that this and all of the resources you have tapped do not fall under existing legal frameworks, so the UN’s actions in the present time of crisis can be justified under the law.”

“Are you still working on behalf of the UN?”

“Yes.”