Starting as a Wallfacer, his defection to the Three-Body Problem shocked the world.

"but……"

Lin Xuan suddenly changed the subject.

“The PDC will not agree to your request, even if I propose it as a Wallfacer, the PDC will still not accept it.”

Shock level from Zhang Beihai +5.

"why?"

Zhang Beihai didn't understand. Weren't the Wallfacers supposed to have considerable power? How could they be rejected by the PDC?

Seemingly aware of Zhang Beihai's inner thoughts, Lin Xuan couldn't help but let out a long sigh.

"The fact that you think this way shows that you still don't understand the true nature of the Wallfacer Project."

"What do you mean?"

Lin Xuan did not answer Zhang Beihai's question directly, but instead asked him a question in return.

"What do you think would happen to history if we invented a time machine and killed some historical figures?"

"That depends on who was killed. If it was a very important person, history would definitely be changed because of it."

Lin Xuan nodded slightly.

"Okay, let's take an example. What would happen if we killed Lincoln, the greatest president of the 19th century in the United States?"

Zhang Beihai gave his answer after a brief moment of thought.

"If it is him, then slavery will continue to exist in the United States for at least another ten years."

Lin Xuan nodded, neither confirming nor denying Zhang Beihai's speculation.

"What if the target of the killing were that German art student who failed his college entrance exam?"

"The Treaty of Versailles will continue to be in effect and oppress the lower classes for several more years."

Lin Xuan listened to Zhang Beihai's answer and a satisfied smile appeared on her face.

“Very well, so from the current perspective, killing these famous historical figures may have some impact on the subsequent historical process, but why don’t we extend the time frame a bit more?”

"The outbreak of the Civil War was almost inevitable. Given our current social system, even in a backward place like Africa, slavery could no longer be sustained."

"And returning to the Treaty of Versailles, the resistance of the lower classes against the oppression of the upper classes was almost inevitable. It's just that the target class of their resistance might no longer be a nation, but an entire race, or it might just be a single individual."

"In short, if we stretch the time frame, it seems that key historical moments are bound to happen, and the so-called heroes are just a microcosm of that era. Their work is actually just accelerating or delaying the process at a certain time scale."

"Then we can derive a theory that events are bound to happen, and people can't change anything. So-called great figures are just a group of players who pluck the strings of time."

As he spoke, he pointed to himself.

"So now, I am the big shot in your eyes. You think I am changing history and creating history, but you are wrong. All I can do is speed up the development of some things, or slow them down, in order to gain a chance of survival."

"When the switch is pressed, the light bulb lights up, but the light bulb thinks that this is its achievement, that it created the light. What arrogance!"

"I am not important. My existence is the most important thing. We are just a grain of sand in the long river of history."

Zhang Beihai was a little confused by Lin Xuan's theory.

"Um, Mr. Lin Xuan, I'm really sorry, but I don't quite understand what you're trying to say. How is this theory relevant to what we're discussing?"

"It's very simple. What I mean is that from the very beginning of the Wallfacer Project, the PDC never intended to rely solely on Wallfacers to defeat the Trisolaran civilization. At least that's what they think now. The so-called Wallfacer Project, from the very beginning, was just a pawn in the political game between major powers."

"Tyler, the first Wallfacer, created the ball lightning weapon, which is one of the main weapons of the future space fleet. Promoting the development of this weapon was originally the job of the PDC. Even without Taylor, the PDC would have carried out a similar plan."

"The second Wallfacer, Radiaz, I don't know what his plan is yet, but based on what he's doing now, it's similar to a super nuclear bomb. This thing can hardly cause any damage to the Trisolarans, and the current nuclear bomb yield of mankind is enough to destroy any country in the world. Therefore, there is not much need for countries to build larger nuclear bombs. If I'm not mistaken, Radiaz's plan will definitely be opposed by the PDC."

"Wallfacer Number Three, Hines, do I need to say more about his research? Humanity's exploration of brain science has never stopped, so take a close look and see, besides me and Luo Ji, which other Wallfacer is truly working for their own plan?"

Zhang Beihai really wanted to say that it seemed he and Luo Ji had been staying home all day doing nothing, but out of politeness to Lin Xuan, he swallowed his words.

"So, do you understand now? The Wallfacers are nothing more than pawns in the power struggle between nations. I even suspect that the Wallfacer program was conceived from the very beginning to appease public anger. The PDC is merely using our Wallfacer banner to do things for the PDC itself."

Upon hearing this, Zhang Beihai let out a long sigh of relief.

"historical materialism."

"It seems that there is only one way left to get the PDC to develop the radiation thruster."

Upon hearing this, Lin Xuan smiled.

"Actually, there is another way."

"what way?"

"The reason why PDC is likely to develop propellant thrusters is simply because they think that the development process of such thrusters is easier and more likely to yield results. I can't make them think that radiation thrusters are easier to study than propellant thrusters, but I have ways to make the research of radiation thrusters and propellant thrusters equally difficult."

"what?"

Shock level from Zhang Beihai +10.

Zhang Beihai was completely dumbfounded.

What the hell... what kind of reverse mystery operation is this?

But upon closer reflection, Lin Xuan's words seemed to make a lot of sense. If he could really do it, PDC would definitely abandon its research on propellant thrusters.

"What are you going to do?"

Zhang Beihai was somewhat curious.

But Lin Xuan shook her head.

"secret."

In the end, Zhang Beihai was unable to get Lin Xuan's solution, but Lin Xuan had assured him that she would definitely handle the matter well, which put Zhang Beihai at ease.

It was about half an hour after Zhang Beihai left Lin Xuan's house...

Lin Xuan smiled and suddenly spoke into the empty room.

"You heard it all. Locking up another technology isn't that difficult for Zhizi, is it?"

Soon, Zhi Zi projected lines of text into Lin Xuan's pupils.

"Yes, but not necessary."

"We don't care what type of propulsion system humans research."

Tomoko's words were exactly what Lin Xuan had expected.

Zhi Zi is right. Human spaceships are just a bunch of larger toys in front of the Trisolaran fleet. No matter what type of spaceship, none of them can pose a real threat to the Trisolaran fleet.

"It's just a small favor, merely having Zhizi interfere with their experimental process. Consider it a reward for Taylor's successful breakthrough last time."

Soon, Zhizi gave a reply.

"can!"

If Zhang Beihai, who had already left, knew that Lin Xuan had found this solution for him, he would probably be more willing to kill those old aerospace workers.

Compared to him, Lin Xuan's actions were far more cruel; it was a self-inflicted wound.

But Lin Xuan clearly had his own reasons for doing so.

First, he is now a Wallfacer, and also a Wallbreaker of the Trisolaran organization. The Trisolarans may not trust him as much as one might imagine.

Even if Lin Xuan helps the Trisolarans break through Taylor's barrier, the Trisolarans will not completely trust this guy.

The reason is simple: ETO has a history of betrayal. Before her death, Ye Wenjie had already considered betraying the Trisolarans. In addition, Evans knew too much.

Therefore, the near annihilation of ETO by the "Guzheng Project" may seem to be due to Shi Qiang's efforts, but it was actually a deliberate act by the Trisolarans.

Lin Xuan first completed the Wall-Breaking Project, and then asked Sophon to lock down another human technology. At least in the eyes of the Trisolarans, Lin Xuan's stance was more inclined to their side.

As for why Lin Xuan did this, the Trisolarans thought it might be related to Lin Xuan's Wallfacer Project, but Lin Xuan's threat level was far lower than Luo Ji's, so the two sides could actually have something to talk about.

Another very important reason is Lin Xuan's speculation about Zhi Zi.

The sophon's function only allows it to tamper with microscopic experiments. Its so-called locking down of Earth's technology is essentially just sabotaging some human experiments.

However, this destruction is not unlimited. This is already demonstrated by the fact that Ding Yi was able to develop controlled nuclear fusion and a space elevator in the original work.

The limitations imposed by the Sophons only apply to certain research technologies that pose a significant threat to Trisolaris.

It's not that it doesn't want to restrict others, but that it doesn't have the ability.

Therefore, Lin Xuan essentially gave Zhizi extra work, adding another task to the already busy Zhizi.

As for how a single sophon could influence the development of propellant thrusters in the macroscopic world, that's not Lin Xuan's concern; that's a headache for the Trisolarans and ETO.

By exchanging chemical rocket technology, which had little future potential, for a doubling of Zhizi's workload, Lin Xuan seemed to have made a winning deal no matter how you looked at it.

The third reason is that the Trisolarans have noticed the threat posed by Zhang Beihai. Although, as things stand, Zhang Beihai's Wallfacer plan is proceeding quite smoothly, and no one except himself knows what this kid is up to.

However, the plot of the Three-Body world has now taken a major turn, and Lin Xuan actually has doubts about whether Zhang Beihai can still complete the original plan.

He didn't want his presence to cause a butterfly effect that would ruin Zhang Beihai's potentially successful plan.

Therefore, he wanted to provide an extra layer of insurance for Zhang Beihai.

Let him do the job of the executioner.

Only in this way will the Trisolarans not turn their suspicions toward this wild Wallfacer.