The Wallfacer: Everyone wants to break through my wall.

Davis replied, "Because there is no interference from the sophons, the accelerator can be used normally. In addition, there has been two centuries of technological suppression. In the past thirteen years, human technology has made leaps and bounds."

Lin Feng nodded. He could intuitively feel this technological leap just from the documents he was browsing.

Then, Lin Feng casually asked a technical question that he was quite interested in.

"What about warp drive technology? How long will it take to complete that research?"

The warp drive spaceship is a long-distance travel technology that Lin Feng made known to the human leadership through virtual space exercises a long time ago.

The human leadership also lived up to expectations, placing great importance on the warp-speed spaceships used by the Trisolaran fleet in the virtual space exercise, and investing a great deal of resources in researching them.

However, due to the blockade imposed by the Sophon, this research came to nothing.

Later, the Sophon blockade was lifted openly under the threat of broadcasting, and the research on warp-speed spaceships, with Lin Feng's secret encouragement, attracted the attention of the scientific community, and countries concentrated their resources to try to overcome this technology.

These events occurred before Lin Feng left the solar system. Now, thirteen years have passed, and he should have achieved some results by now.

Davis said helplessly, "This research has encountered a bottleneck. Currently, various physical parameters indicate that this research is not feasible. The mainstream voice in the scientific community is no longer as optimistic as before, and is instead focusing on other travel technologies."

Lin Feng frowned, pondered for a moment, and then asked, "Which technologies?"

“Wormhole generation technology, hyperspace jump technology,” Davis replied.

Lin Feng said, "I understand wormhole technology, which involves creating holes in space, but what is hyperspace jump technology?"

Davis explained, "There is a theory that the upper limit of the speed of light is different depending on the dimension. The higher the dimension, the higher the upper limit of the speed of light. Moreover, due to the different spacetime scales, the time flow rate in lower-dimensional spacetime is much higher than that in higher-dimensional spacetime. Spatially, walking one meter in a higher dimension may be equivalent to walking a thousand meters or ten thousand meters in a lower-dimensional spacetime."

"If humans can find a way to enter higher dimensions, shorten the distance and time by traveling in higher dimensions, and then return to lower-dimensional spacetime to complete interstellar travel, it would be like a jump, hence the name hyperspace jump."

Lin Feng nodded knowingly. Hyperspace jump, as the name suggests, is a dimensional leap that transcends the current spacetime. It's like a human jumping from a two-dimensional plane into a three-dimensional spacetime in mid-air, and then falling back to a two-dimensional plane in the distance.

Davis continued, "The theoretical basis for wormhole technology exists, but the formula has shown that negative mass is needed to maintain its stable existence, and this is also taken into account the spacetime tearing force that wormholes exert on objects they pass through."

"For a spacecraft to pass through safely, the wormhole must be at least one light-year in diameter, requiring an enormous amount of energy, which might not even be enough to exhaust the mass of the sun."

"Therefore, hyperspace jump technology is the most likely technology to be realized after warp drive."

Wormholes are not impossible to achieve, and the technical difficulty is not too high. As long as laser technology is available, it can be done by focusing high-energy lasers on a certain point in space and using high energy to force the formation of wormholes.

However, this requires an absurdly large amount of resources. Even opening a wormhole that can safely pass through, which is only one light-year in diameter, would not be enough to convert the entire mass and energy of the solar system.

Therefore, the scientific community generally does not have a positive view of wormholes.

Lin Feng tapped his fingers on the table. He didn't know if he could develop hyperspace jump technology, but he knew it was pretty useless.

Higher-dimensional space does exist, but it is constantly being reduced in dimension. If the universe no longer has higher-dimensional space, where would a hyperspace jump go?

A simple question.

Therefore, the warp drive spaceship remains the only way out. Lin Feng estimated that this was a bottleneck deliberately created by the Trisolarans using sophons.

If he hadn't read the script, he probably would have been fooled.

Lin Feng didn't ask any more questions about the navigation technology; he would find a way to handle that. He then inquired about something else.

"What about research projects related to 'non-existence'?" Lin Feng asked.

Chapter 243 Progress Over Thirteen Years

Davis hesitated for a moment, then replied, "Quantization has encountered an extremely difficult situation. Although living organisms can transform into quantum ghosts through macro-electrons, it is very difficult to transform them back, and there is no way to start."

"We successfully quantized the brain of a mouse, but we couldn't converge its probability cloud no matter what we tried. It was indeed still alive. During a period of time that we couldn't observe, the mouse's still active body, which we maintained, moved from one end of the experimental maze to the other and ate the cheese at the end of the maze."

Unfortunately, this phenomenon did not reappear in later experiments.

Lin Feng frowned in thought, wondering if Zhi Zi was interfering. He then asked.

"Why is this? Even photons in a superposition state can have their wave-particle duality affected by changing their frequency."

"Dr. Ding believes that macroelectrons altered the structure of the basic substances in the mouse brain," Davis replied.

Upon hearing Davis mention Ding Yi, Lin Feng was taken aback, then quickly realized what he meant and asked, "What do you mean?"

Davis explained, “According to Dr. Ding’s theory of macroatoms, macroatoms, including macroelectrons, are actually ordinary three-dimensional atoms unfolded in two dimensions. This is a phenomenon of dimensional drop, driven by some natural force that we do not yet know, which may have started not long after the Big Bang.”

"After a long period of time, all particles in the universe may unfold into a low-dimensional universe and become a macrocosm composed of low-dimensional atoms. This can also be seen as a natural process of entropy increase in the universe. And this macrocosm may continue to fall and become another macrocosm."

Lin Feng's expression showed a subtle change of emotion, because Davis's words reminded him of the ending of the original work.

The universe is reduced to zero!

So, macroatoms are actually two-dimensional atoms that escaped from the impact region back into three-dimensional spacetime after being struck by a two-dimensional foil?

Suppressing his inner shock, Lin Feng asked, feigning ignorance.

"What does this have to do with the brains of mice?"

Davis said, "It's related. Low-dimensional expansion isn't irreversible. After a mouse's brain is expanded in low dimensions by macro-electrons, there's a certain probability that it will revert to its original state. This is a change in dimension. It's like a basketball that keeps bouncing. With each bounce, the height of the basketball decreases significantly until it gradually stops bouncing altogether..."

"Wait a minute," Lin Feng interrupted Davis, asking, "There's something I need to clarify first. Quantumization doesn't mean someone can be both alive and dead, does it?"

"Or to put it another way, if I killed that quantum human in normal spacetime, and then went to a lower-dimensional spacetime to kill that quantum human again, wouldn't that quantum human be completely dead?" Lin Feng asked seriously.

Davis fell silent for a moment before replying, "...We also want to know the answer to this question; our current research is not in-depth enough."

Lin Feng shook his head. "I'm a little disappointed. I thought that if humans were quantumized, they could break free from the framework of 'life feeds on reverse entropy' and escape the effects of entropy increase."

"The law of entropy increase is still the law of the universe, and the law is immutable," Davis said.

"And who sets the rules? God?" Lin Feng countered.

Lin Feng continued, "Think about it carefully, wasn't the universe originally empty? If the original source didn't exist, then what was that original 'one'?"

"If we could understand that original 'one,' could we also replicate it and create an infinitely massive universe from nothingness?"

Lin Feng's questions are logically plausible, but they are too far removed from the scientific level of humankind. If humanity could reach that level, it would possess the divine power to 'create things out of thin air'.

Even if the law of entropy increase exists, it would no longer be meaningful.

“That’s a topic too far off; I can’t answer it,” Davis said.

Lin Feng also felt that this topic was too far removed from reality, so he inquired about other research.

Tell me about other research.

Davis nodded and replied, "Of the other three directions—micro-scale, transparency, and inanimate object camouflage—micro-scale has made the most progress because basic science is no longer affected by sophons. Humans can now apply quantum technology to chips, which greatly reduces the size of computers. Previously, chips were one nanometer in size; now, computers are one nanometer in size."

Lin Feng thought for a moment and asked, "So, only electronic humans can enter the microscopic world, and no one is causing trouble or accusing electronic humans of abandoning other humans?"

“Of course there are, and there are quite a few such people in the human world. However, these people can’t cause any trouble. With the development of quantum technology, using probability clouds and quantum entanglement, it may be possible to achieve this kind of seamless thought transfer,” Davis replied.

Because everyone can ultimately operate at a micro level, no government will stand up to oppose it.

Lin Feng didn't quite understand why quantum entanglement and probability clouds could achieve seamless thought transfer, but this technology was good news for him.

Lin Feng then asked, "What about transparency and inanimate object camouflage? Have you found a direction yet?"

Davis smiled and said, “Rest assured, the direction has been found. Transparency can mimic dark matter and avoid interaction with electromagnetic forces, thus shielding most detections. As for gravitational waves, we can use large masses of matter to provide camouflage. A star that is hundreds of thousands of times heavier than Earth could have an extra milligram of mass by one millionth of a milligram. Such a tiny difference is difficult to detect.”

"Even if we were to become particles, we would be difficult to detect even in the vacuum of the universe, because the vacuum is not an absolute vacuum. The microscopic quantum sea is churning every moment. We hide under the quantum waves and become a part of that quantum sea. Who could possibly notice us?"

Davis continued, "As for disguising inanimate objects, it's even simpler. We just need to faithfully play the role of 'an uncharged particle that exists in the universe and can only be observed indirectly through gravitational waves.' Who would have thought that these particles are actually living organisms?"

"According to your concept of 'non-existence,' humanity will 'disappear' from the universe."

Davis expressed great excitement, believing that the future of humanity is bright.

Lin Feng still had concerns, such as how to deal with dimensional reduction attacks. From the current perspective of macro-atoms, particles can also be affected by dimensional reduction attacks.

"What about heat death?" Lin Feng asked.

Davis said, "We haven't thought about how to solve this problem yet, but it's not a big problem. If we can achieve micro-particle size, we can further study how to make it photonic. Photons do not decay; they can only be transformed into electron-positron pairs through collisions, but this does not fall under the category of decay."

Lin Feng frowned. He hadn't really considered whether the photon was affected by the dimensional reduction attack.

Judging from the original work, it seems unlikely, because if photons could also become 'macrophotons', then no one would be able to see the singer's 'copy' of Van Gogh's painting created using the solar system.

"Didn't you say before that ordinary particles can unfold in lower dimensions? Can't photons unfold in lower dimensions?" Lin Feng asked.

Davis thought about it carefully for a while, and then said, "A photon itself has no concept of volume, and it doesn't even have rest mass. It is just a point of energy. It is the most basic form of energy. That's why the speed of light is the highest speed of matter in the universe."

Photons are the most basic form of energy, the most fundamental thing.

Lin Feng got the answer he wanted: at least photons don't have a volume concept, so there's no need to worry about two-dimensional attacks.

Lin Feng said, "Finally, I would like to ask, if humanity completes its microscopic transformation, how will such a human civilization meet its energy needs? Acquiring a large amount of energy at once will inevitably manifest abnormalities on a macroscopic scale, thus exposing its own existence."

The operation of a civilization is inevitably accompanied by a significant increase in entropy, and the degree of order will also increase. This is not a problem on a small scale, but once the scale is expanded, even a fool can see that a civilization is hidden in this place.

Davis shook his head. "No, we've estimated that the entropy produced by microscopic human civilization would actually be much smaller."

"Is it because civilization has shrunk? But civilization will inevitably grow and expand." Lin Feng raised an eyebrow and asked.

Davis replied, "Because of the boiling quantum sea, microscopic humans can easily capture the excited state of the quantum particles in the microscopic world for their own use, and can achieve near-light-speed travel without consuming much energy, just like the sophon."

"If we achieve microscopic scaling, quantum accelerators will lose their purpose, because we can directly 'see' the results of particle collisions near neutron stars and black holes."

Lin Feng was taken aback, then suddenly realized.

Yes! There are many natural particle accelerators in the universe! It's just that humans were previously limited by their own capabilities and had to build their own accelerators to observe particles!

If everyone had the ability to travel at the speed of light, it would be perfectly fine to run to the edge of a black hole and observe particles!

Chapter 244 The Beautiful New Society

The industrial fleet was very close to Earth, and Lin Feng could observe the folded plateaus, mountains, and vast blue oceans on the Earth's surface through the flagship's optical equipment.

Two centuries have passed, and the Earth's landscape remains the same two centuries later.

Two centuries is a long time for humankind, but it is just a blink of an eye for an Earth that is over four billion years old. The Himalayas, the world's highest peak, have only risen by one or two meters.

However, there is one very obvious change on the Earth's surface.

Those rays of light on the shaded side, representing civilization and wisdom, have all vanished without a trace.

When a part of the Earth's surface is plunged into darkness, with no light shining through, it resembles a desolate, uninhabited planet.

After successfully deterring the Trisolaran world, the Dark Forest Theory was revealed, plunging the human world into extreme panic and triggering large-scale riots worldwide.

People stormed into all communication base stations and radio radars, either destroying them or forcibly shutting them down. The same was done to all orbiting satellites. Spaceships still traveling in the solar system were ordered to return to Earth. During the return journey, the only information exchanged was the lowest frequency Morse code, which could only be sent once per Earth day.

In the past, such behavior would have inevitably instigated greater turmoil, but after the Dark Forest Theory was published, people generally expressed understanding and support for this behavior.

In the following period, humanity gradually recovered from the initial fear of learning about the Dark Forest Theory and regained its rationality. However, it stopped using any form of electromagnetic waves to transmit information and instead used quantum entanglement as the primary means of information transmission.