The Wallfacer: Everyone wants to break through my wall.

It's perfectly normal to have defeatist thoughts when facing a powerful enemy like the Trisolarans.

Knight William breathed a sigh of relief and said, "Many military personnel who retired from the Space Force because of defeatism are engaged in civilian space work, such as building, transporting, and managing space facilities. Countries around the world will not let these talents sit idle."

The implication was that 99% of the people in the ten industrial fleets were losers.

Radiaz raised an eyebrow, indicating he had no intention of continuing the conversation on this topic.

"Humans on Earth are migrating to space on a large scale. Humans are abandoning Earth. Is this something that Feng Taylor is intentionally guiding?" Radiaz asked.

In the current human situation, people on Earth are slowly migrating to outer space, and as the number of space cities increases, the number of people in space is also constantly increasing.

Radiaz believed this was the result of Lin Feng's forced order.

Knight William shook his head and replied, "No, it's a spontaneous human behavior. Seeking advantage and avoiding harm is the nature of living beings. The living conditions in space cities are too good, so good that humans are willing to abandon Earth and move to space to live."

"Aren't they worried about the future of Trisolaris? Space will become a battlefield between the two sides in the future," Radiaz asked, somewhat surprised.

In the future, the human fleet and the Trisolaran fleet will inevitably fight in space. Even if these space cities are not considered as targets for destruction by the other side, stray bullets that break off from the battlefield may still threaten them.

Knight William smiled and replied, “People don’t care about that anymore. The Trisolarans will still need several centuries to reach Earth. At the lifespan of humans, it will take at least four generations to replace them. When the Trisolaran fleet is about to arrive on Earth, their descendants can move back to Earth. This is what many people think. The important thing is to live in the present.”

"This is the spirit that Mr. Taylor has always advocated," Knight William added.

Rediaz nodded thoughtfully.

"It certainly has his style."

“Take me to see the finished product of the solar satellite,” said Rediaz, not forgetting the purpose of his trip.

The most basic component of the Dyson Cloud is the solar satellite. The solar satellite itself does not have a high technical threshold; the difficulty lies mainly in the amount of engineering involved.

Building a massive constellation of satellites capable of orbiting a star would be an extreme test of a civilization's industrial strength, especially considering just the maintenance of those satellites.

Half a month after Radiaz passed the design blueprints for the solar satellite to Knight William, they built a finished solar satellite.

“This way, please,” Knight William replied.

Led by Knight William, the two arrived at the other side of the engineering ship, boarded a small spaceship, exited the engineering ship, and entered space.

Something detached from the small spaceship.

After the object detached, it began to extend on its own, from a ten-cubic-meter object to a huge planar structure with a diameter of one kilometer.

The thin film in this planar structure is very thin, with a thickness equivalent to that of a sheet of cardboard.

Knight William explained, “As per your request, we have developed a reflective surface with a diameter of one kilometer, composed of a composite of mirrors, solid metallic hydrogen, and tin foil.”

The solar satellite is supported by a skeleton that unfolds into a plane like a spider web. One side of it has many thin tubes, which are pipes specifically designed for the flow of cooling fluids.

"Look at the unfolded solar satellite," Rediaz asked.

"What about the electromagnetic deflection performance? We don't need the charged particles in the solar wind because they will constantly erode the solar satellite, and the failure rate will increase over time. We only need uncharged particles."

Knight William looked at the unfolded solar satellite and explained.

"Electromagnetic deflection is released through the unfolding framework of the solar satellite, opening up the largest possible area to form a magnetic barrier. The composite magnetic field unfolds, and regardless of whether the particles in the solar wind are positively or negatively charged, they will be deflected away from the solar satellite."

Knight William paused, then added, "Furthermore, the thrust of electromagnetic deflection can also be used to change the orbit of satellites in space."

Rediaz looked slightly surprised.

"Can it be used for orbital changes?"

In his original design, solar satellites would still need thrusters because these satellites would need to change orbits at certain times, otherwise they might collide.

However, the solar satellites designed by Knight Williams were light enough and close enough to the sun that using the solar wind to change their orbits was not too difficult.

“Yes, so we omitted the propulsion system for the solar satellite; the satellite can move near the sun by relying on the solar wind,” Knight William said.

"What about energy storage?" Rediaz asked again.

“Macroelectronic energy storage is not a problem; it’s already a fairly mature technology,” Knight William replied.

Knight William used a laser pointer on the small spaceship to mark the energy storage parts of the solar satellite as he explained it to Radiaz.

"We have adopted a separable design. The macro-electron container on the solar satellite can be separated and has an independent radiation propulsion device, which will facilitate our future collection and use."

Radiaz nodded. So far, he was very satisfied with the solar satellite that Knight William had built. He then asked.

"How well do the control components protect against radiation? We must also pay attention to protection against uncharged particles."

“That’s not a problem. We’ve stacked a 25-decimeter-thick layer of solid metallic hydrogen. Even if uncharged particles in the solar wind could penetrate this layer, their impact on components like chips and computers would be negligible,” Knight William replied.

Solid metallic hydrogen is the densest substance known to humankind. A very thin layer of this substance is enough to be equivalent to the thick radiation shielding walls in nuclear power plants of the past. Knight Williams and his team even thickened this material to 25 decimeters. Even if uncharged particles in the solar wind can penetrate the gap between the atomic nucleus and electrons, those tiny particles would not be able to affect the computer carried by the solar satellite.

With the control component issue resolved, Radiaz then asked about another matter that concerned him.

"How do you plan to solve the problem of heat buildup?"

In space, heat dissipation is a problem that is not easy to solve.

Space is a vacuum, with no heat transfer medium, so heat dissipation can only be achieved through very inefficient thermal radiation.

Generally speaking, spacecraft carry coolant to cool them down.

However, solar satellites, being so close to the sun, likely face very serious heat accumulation problems, especially given their massive size.

If humans want to build Dyson clouds, they need a lot of coolant; otherwise, even if Dyson clouds are built, they will soon turn into scrap metal due to heat buildup.

Knight William and his team had already figured out how to handle the coolant problem.

Knight William explained their solution to Radiaz: "We plan to use solid hydrogen to cool the solar satellite, and have the transport fleet periodically collect the hydrogen from the solar satellite."

By compressing low-temperature hydrogen into a solid state and placing it on a solar satellite, the process of converting solid hydrogen into gas will naturally carry away the heat from the solar satellite.

Every so often, the transport fleet would travel to the various solar satellites to replace the solid hydrogen containers and transport the hot hydrogen to other locations.

In this way, the heat is transferred away.

"Is solid hydrogen enough?" Radiaz frowned slightly.

It wasn't that he wanted to pour cold water on things, but he felt that this wasn't enough. The closer to the sun, the faster the heat would accumulate. Although cooling down like this would allow for the collection of a lot of electrical energy, it would require enough solid hydrogen.

Knight William and his team had already thought about the issues that Radiázs was concerned about.

Knight William said, “That’s enough. We can transport this hot hydrogen to a place far away from the sun and cool it down by thermal radiation. As long as there is enough solid hydrogen available, we can catch up with the cooling required for the thermal accumulation of solar satellites. As for the early stages of the Dyson Cloud construction, we can transport the hot hydrogen to planets for cooling. Many industries in the solar system need to use heat.”

They're professionals when it comes to space construction!

After thinking about it for a moment, Radiaz had no further questions.

He gave instructions: "Prioritize building a space factory for solid hydrogen."

There's no rush to deploy solar satellites; solving the problem of thermally deposited solid hydrogen is a more important one.

……

In his shelter, Lin Feng ended yet another contentious meeting with PDC, who once again discussed the limitations of brain implantation with him.

Since Lin Feng obtained the information on the thought imprint technology from Hines, various countries have become sensitive to him, and spies have been planted in his research team.

Lin Feng didn't react to this. As long as these people didn't affect the development of the technology, everything was fine.

Consider this a reassurance to the representatives from various countries.

Lin Feng frowned and thought for a while before opening the communication channel to contact the research team.

"I want to know the progress of brain implantation research."

Lin Feng didn't beat around the bush and asked directly.

On the other end of the channel, Goring Davis replied, "We've hit a bottleneck and are currently arguing over two research directions."

Lin Feng frowned slightly and asked, "Didn't we already have a scanned blueprint of a human brain?"

A neural computer is a computer developed to mimic the human brain.

To develop such a computer, a prerequisite is to have detailed information about the human brain.

Thanks to the efforts of Keiko Sugiyama and a group of scholars including Goring Davis, the neural computer was developed.

Humanity has also collected comprehensive data on the human brain.

Lin Feng originally thought that brain implantation would be a technology that could be mastered in a short period of time.

Davis explained, “The data on the human brain is sufficient, but the human brain does not operate purely electronically; part of it operates through chemical reactions, while chips operate purely electronically.”

"Currently, there are two research directions. One is to add a repeater, where a purely electronic chip is inserted into the repeater to transmit information to the repeater, and then the repeater recompiles the information to the brain."

"Another one is to design entirely new chips that cater to the way the human brain works, so that the chips can also participate in the chemical processes of the human brain."

Lin Feng nodded and asked.

What are the differences between the two?

Davis replied, "The former is simply a chip transplant. If the chip is removed, or if it is damaged or has poor contact for some reason, the person will forget the knowledge stored in the chip. The advantage is that it has strong compatibility. We are not sure whether future brain implants will encounter other problems. This design can leave a lot of room for modification."

"The latter requires the development of a chip that caters to the operating mode of the human brain. It does not require a repeater. After being transplanted into the human brain, even if the chip is removed, the human brain will still remember the knowledge stored in the chip. The advantages are obvious, but the disadvantages are also obvious. Human knowledge is constantly being innovated, and this kind of chip may solidify the human's acceptance of new knowledge."

Chapter 101 Only Children Make Choices

Lin Feng pondered for a moment. He carefully weighed the two brain implantation research directions that Davis had told him and found that the former was better than the latter.

After all, no one knows what the future holds, and human knowledge will continue to evolve. Brain implants using repeaters can easily facilitate the replacement of 'knowledge'.

While brain-integrated implants that do not rely on repeaters certainly have the advantage of allowing the human brain to retain knowledge even if the implant is damaged or fails to function properly for other reasons.

However, this knowledge can also solidify a person's worldview, just as people who believed in Newton's geocentric model found it difficult to accept the heliocentric model.

Lin Feng believed that these researchers must have noticed these drawbacks earlier than he had, and since they had noticed them, there should be no disagreement about them.

"Comparing the two, isn't the former more advantageous? Why do some people support the latter?" Lin Feng asked, feeling that there must be something he had overlooked.

Davis replied, "Because proponents of how the brain works want to design a heritable human brain tissue that allows newborns to inherit their parents' knowledge, this requires developing such a chip and accumulating technological expertise."

Lin Feng suddenly realized that the research project being conducted in Germany was to make artificial organs heritable. If combined with brain implantation technology, there was no doubt that humanity could pass on knowledge.

Taking this into account, brain implantation without a repeater is actually more economical than brain implantation with a repeater.

Because this biological brain implant is something that babies are born with, humans do not need to specially manufacture brain implants, making the cost undoubtedly lower.

Once the research is completed, even if humanity's industrial system is destroyed overnight and all books are burned, humanity's technological tree will not be lost, because these things are in everyone's mind.

"Both of them look pretty good..." Lin Feng murmured.

Not to mention the scholars, even Lin Feng found it difficult to choose.