Cixin Liu - The Three-Body Problem

The princeps and all the consuls once again came to the Pendulum Monument. Above them hovered four sophons shrunk to six-space. In the crystalline mirrored surface of each was an image of the rising sun, recalling the three-dimensional eyes that had once appeared in space.

>Sophon formation, adjust dimensionality to eleven.

After the command was issued, the four mirrored spheres disappeared. The science consul said, “Princeps, now Sophon One and Sophon Two will be launched toward the Earth. Using the large knowledge base stored in the micro circuits, the sophons understand the nature of space. They can draw energy from the vacuum and become high-energy particles in a moment, and navigate through space at nearly the speed of light. This might appear to violate the law of conservation of energy, but in fact the sophons are only ‘borrowing’ energy from the structure of vacuum. However, the time for returning such energy is far in the future, when the proton decays. By then, the end of the universe will not be far.

“After the two sophons arrive on Earth, their first mission is to locate the high-energy particle accelerators used by humans for physics research and hide within them. At the level of science development on the Earth, the basic method for exploring the deep structure of matter is to use accelerated high-energy particles to collide with target particles. After the target particles have been smashed, they analyze the results to try to find information reflecting the deep structure of matter. In actual experiments, they use the substance containing the target particles as the bull’s-eye for the accelerated bullets.

“But the inside of the substance being struck is almost all vacuum. Suppose an atom is the size of a theater; the nucleus is like a walnut hovering in the center of the theater. Thus, successful collisions are very rare. Often large quantities of high-energy particles must be directed against the target substance for a sustained period of time before a collision occurs. This kind of experiment is akin to looking for a raindrop of a slightly different color in a summer thunderstorm.

“This gives the sophons an opening. A sophon can take the place of a target particle and accept the collision. Because they’re highly intelligent, they can precisely determine through the quantum sensing formation the paths that the accelerated particles will follow within a very short period of time and move to the appropriate location. Thus, the likelihood that a sophon will be struck will be billions of times greater than the actual target particle. After a sophon is struck, it can deliberately give out wrong and chaotic results. Thus, even if the actual target particle is occasionally struck, Earth physicists will not be able to tell the correct result from the numerous erroneous results.”

“Wouldn’t this destroy the sophon as well?” asked the military consul.

“No. When a sophon is smashed into several pieces, several new sophons are born. And they continue to have secure quantum entanglements between them, just like how, if you break a magnet in half, you would get two magnets. Even though each partial sophon’s capabilities will be much lower than the original, whole sophon, under the direction of the self-healing software, the pieces will move together and reassemble into the original sophon. This process only requires a microsecond and will occur after the collision in the accelerator, and after the pieces of the sophon have left the wrong results in the bubble chamber or on sensitive film.”

Someone asked, “Would it be possible for Earth scientists to find a way to detect sophons and then use a strong magnetic field to imprison them? Protons have positive charge.”

“That’s impossible. To detect sophons requires humans to make breakthroughs in the study of the deep structure of matter. But their high-energy accelerators will all have been turned into heaps of junk. How can they make progress in such research? The hunter’s eyes have already been blinded by the prey he intends to catch.”

“Humans may still resort to a brute-force method,” the industry consul said. “They can build a large number of accelerators, faster than the rate at which we can build sophons. Then, at least some accelerators on Earth will not be infiltrated by sophons and can yield the correct results.”

“This is one of the most interesting aspects of Project Sophon!” The science consul was visibly excited by the question. “Mister Industry Consul, do not worry that creating large numbers of sophons will cause the collapse of the Trisolaran economy. We will not need to resort to that. We might build a few more, but not too many. Indeed, just these two are more than enough, because each sophon is capable of multitasking.”

“Multitasking?”

“This is a bit of jargon related to ancient serial computers. Back then, a computer’s central processing unit could only carry out a single instruction at a time. But, because it was so fast, and aided by interrupt scheduling, from our low-speed perspective, the computer was carrying out multiple programs at the same time. As you know, the sophons move at close to the speed of light. The surface of the Earth is a tiny space for sophons. If sophons patrol around the accelerators on Earth at this speed, then, from the perspective of humans, it is as if they simultaneously exist in all the accelerators and can almost simultaneously create erroneous results in all the accelerators.

“By our calculations, each sophon is capable of controlling more than ten thousand high-energy accelerators. It takes about four to five years for humans to build each of these accelerators, and it seems unlikely that they can be mass produced based on their economy and available resources. Of course, they can increase the distance between the accelerators, for example, by building accelerators on the different planets in their planetary system. That would indeed destroy the multitasking operation of the sophons. But in the time it would take to do that, it would not be difficult for Trisolaris to build ten or more sophons.

“More and more sophons will wander in that planetary system. Added all together, they still won’t add up to the mass of even one-billionth of a bacterium. But they will cause the physicists on Earth to never be able to glimpse the secrets hidden deep in the structure of matter. Humans will never be able to access the micro dimensions, and the ability for them to manipulate matter will be limited to below five dimensions. From now on, whether it’s four point five million hours or four hundred and fifty trillion hours, Earth civilization’s technology will never achieve this fundamental breakthrough. They will remain forever in the primitive stage. The science of Earth has been completely locked down, and the lock is so secure that humans will never be able to escape from it by their own strength.”

“That’s wonderful! Please forgive my lack of respect for Project Sophon in the past.” The military consul’s tone was sincere.

“In fact, there are currently only three accelerators with sufficient power to produce results that can lead to possible breakthroughs. After Sophon One and Sophon Two arrive on Earth, they will have a lot of extra capacity. In order to fully utilize the sophons, we will assign them other tasks in addition to interfering with the three accelerators. For example, they will be the main means to carry out the Miracle Plan.”

“Sophons can create miracles?”

“For humans, yes. Everyone knows that high-energy particles can expose film. This is one of the ways that primitive accelerators on Earth once showed individual particles. When a sophon passes through the film at high energy, it leaves behind a tiny exposed spot. If a sophon passes back and forth through the film many times, it can connect the dots to form letters or numbers or even pictures, like embroidery. The process is very fast, and far quicker than the speed at which humans expose film when taking a picture. Also, the human retina is similar to the Trisolaran one. Thus, a high-energy sophon can also use the same technique to show letters, numbers, or images on their retina…. And if these little miracles can confuse and terrify humans, then the next great miracle will be sufficient to frighten their scientists—no better than bugs—to death: Sophons can cause background cosmic radiation to flash in their eyes.”