Let you be the wall-facer: you turn around and join the Three-Body Problem?

Only in this way will the dove members hate her. The better Cheng Xin lives, the greater the hatred in their hearts will be.

Lin Xuan didn't dare to kill Cheng Xin easily, because you never know how many more there will be if you kill her.

So to be on the safe side, she had to stay alive and live better than anyone else, so as to completely separate herself from other party members.

However, Lin Xuan didn't come to find Cheng Xin this time, so he didn't want to even take a second look at this woman.

"Go and take care of your own business. You won't be needed for the following conversation."

While Lin Xuan was speaking, she glanced at Ai AA behind her.

Lin Xuan knew very well what this woman was thinking.

As a serious criminal, even though he was the only friend around Cheng Xin, Ai AA could only visit her in prison three times a year.

This time I came here on business with Lin Xuan, so it naturally does not count as one of these three times.

"Thank you."

Without further ado, Ai AA turned and left. Her attitude towards Lin Xuan had always been complicated.

She knew very well that Lin Xuan's decision was correct for all mankind, but if she had to choose between Cheng Xin and all mankind, she would still prefer the former.

She would always remember what Wade said to her before he left.

If you still want that woman to live, you should make the Star Ring Group bigger and stronger. Lin Xuan never keeps useless things.

The prison is divided into two floors, but it is more like a castle than a prison.

Because from beginning to end, you can't see any iron fences or guards from here.

The reason is very simple. Of the two imprisoned people, one did not want to run away, and the other could not run away.

All three bodies are dead, where can you escape to?

Not to mention Cheng Xin, the headquarters of the Star Ring Group is exposed within the range of the Earth Alliance's orbital cannon. If she dares to walk out of the gate of this prison today, the particle accelerator will be able to send all the employees of the entire space city into paradise in the next second.

Lin Xuan took the elevator to the second floor. To be honest, he and Tomoko had not seen each other for many years.

The other party had been waiting in the living room for a long time, still wearing a kimono and with no expression on his face, just like when they first met.

"What should I say? Long time no see. Have you lost weight again?"

Lin Xuan joked a few words, sat down opposite the coffee table, and reached out to touch the teacup on the table. But just as her hand was about to touch the cup, she suddenly raised her hand, and a silver thread made of nanorobots passed through the table and went straight to Zhizi's head.

"Whoosh!"

Just when the silver wire was about to touch the other party's cheek, Lin Xuan suddenly withdrew his hand and pulled the nanorobot back.

"Mr. Lin Xuan, you are still so cautious."

Chieko's voice was gentle and pleasant, and she took the initiative to pour tea for Lin Xuan.

"As the saying goes, once bitten by a snake, one will be afraid of ropes for ten years. I am scared by your trick last time. Who knows if you will play the same trick again."

When Lin Xuan mentioned what happened that year, she was speechless.

If I hadn't known the whole plot in advance and hadn't been so good at pretending, I would have been defeated by the other party.

"As the saying goes, there are no eternal enemies, only eternal interests. Mr. Lin Xuan and I are now in the same boat. If anything happens to Mr. Lin Xuan, I can't escape either, right?"

Lin Xuan took a sip of tea and tapped the table with her fingers.

"If you have something to say, please say it quickly. I still have to deal with the mess at the Earth Union."

Tomoko smiled slightly, but didn't keep anyone in suspense.

"Mr. Lin Xuan, an old friend of yours has come to Earth."

"Who?"

When Lin Xuan heard what the other party said, Zhang Beihai instantly appeared in her mind. This guy had been completely out of control since he was sent out by her. He has not contacted her until now. Apart from knowing that their mission was completed, he has no regard for the entire Navigator Fleet Alliance.

But he soon realized that since the other party called him an old friend, it was obvious that he was not from Earth, at least not a human being.

So eliminating the others, there seems to be only one answer left.

"Another observer?"

"Mr. Lin Xuan is still as sharp as ever, or was this something you had already agreed on?"

Chieko's words clearly revealed her curiosity about the matter, which showed that she also knew very little about the observer.

But coincidentally, Lin Xuan also didn't know.

The current situation of these two people is that they both have some information, but they both think that the other party is the one who knows all the information, so the mutual testing between the two of them runs through almost the entire conversation.

"Uh...well, why don't you just tell me who it is? I may not really know him."

This time, Lin Xuan made a bold guess based on the known information.

There should be more than one observer, at least three.

A long time ago, Tomoko mentioned that there was an observer who had contacted them, but the other party should not be familiar with them.

In other words, he is not familiar with the original owner of this body.

After all, the way Chieko addressed him changed before and after. If she was referring to the same person this time as before, then she should not use the term "old friend". This is obviously problematic.

So we can draw a conclusion that, including myself, there are at least three people among them.

If Shi Qiang and his team came to the conclusion about the six observers directly through Tianchen's intelligence, then Lin Xuan simply deduced the general situation perfectly through the dialogue and game between him and Chieko.

This would have been absolutely impossible to do in the past, but since the integration of computing power, he feels that his analytical ability is significantly higher than before.

"He and I have already met. He said you should know him and left a number."

Tomoko said, tapping the tea with her fingertips and writing a number on the table.

"3!"

"3?"

Although Lin Xuan had a thousand question marks in her mind, her expression remained calm.

"I see. Did he tell you anything else?"

"No, I'm just a messenger. He said that after you see this number, you will know where to find him."

Lin Xuan was devastated inside, but he couldn't show it.

"I know you're a horse. You just gave me a number and asked me to guess a chicken feather. Can't you say a few more words? Will you die?"

"We're not playing a reasoning game here. If you write a 3, do you think I have to search the entire universe for anything related to 3?"

Chapter 268 We still have a lot to learn

"How was the conversation?"

When she came out of prison, Ai AA looked much better. Thanks to Lin Xuan, she was very satisfied to see Cheng Xin again.

But she forgot that the reason Cheng Xin was imprisoned here was because of Lin Xuan's order.

"We have to continue monitoring Sophon. You guys at the Star Ring Group should pay attention to this matter. I have to deal with the Earth Alliance, so I can't keep an eye on her all the time."

Ai AA nodded slightly.

"Understood. Any other arrangements?"

"Whatever."

Lin Xuan's words were telling the other party that no matter what you do, I just want to see the results. Anyway, as long as I am not satisfied with the results, you, the Star Ring Group, will have to take the blame.

After bidding farewell to Ai AA, Lin Xuan boarded the return spaceship, switched it to autopilot mode, then closed her eyes again and began to sort out what she had gained from this trip.

Lin Xuan was still thinking about the meaning of the number 3. Although she was not completely sure, she could still infer a rough framework from the other party's words.

The observer is not just one person, but multiple people.

So how to distinguish them?

name?

A name is just a code name, just like Lin Xuan, he can change his name to Ye Xuan or Wang Xuan. Such an uncertain thing cannot be used as a way to distinguish between observers.

As the saying goes, the simpler something is, the more practical it is. Lin Xuan feels that if it were her, she would use numbers to distinguish the identity of the observer.

Now there are two issues involved.

1. Who does the number three represent, or what is the relationship between him and yourself?

Second, what is your representative number?

These two questions would directly affect the legitimacy of his identity as an observer. If he said that he didn't know... well, based on what he had done in the past two hundred years, even if he directly admitted that he didn't know, they probably wouldn't believe him. But he couldn't really be completely ignorant.

At this point, it seemed as if the problem had reached a dead end, and Lin Xuan didn't know how to proceed with the next step of work for a moment.

There was too little useful information, and the person who could provide him with more information, Yun Tianming, had run away. Zhang Beihai had not been able to contact him until now, and he didn't know what had happened over there.

There is not even one person I can rely on on my side right now.

"Right now, I'm afraid we can only wait until all the underground ruins in Luocheng are dug out before we can get any results."

……

While Lin Xuan was visiting the prison, Luo Congmin was not idle either.

Lin Xuan was not happy to see Wang Miao, so she was in charge of all the coordination work between the Academy of Sciences and the Engineering Department.

"From this point of view, he is more like the president of the Federation of Local Government, and you have become his secretary."

Ding Yi raised his wine glass and took a sip. Then the life health detector on his body issued a shrill alarm.

Ding Yi quickly closed it, leaned back on the soft sofa in the hovercraft with a smile, and looked at the scenery outside the window.

"The Academy of Sciences is keeping a close eye on me now. They won't even let me drink a little bit of alcohol. They say, 'Old Ding, your health is more important. I'm already hundreds of years old. I've lived enough. I've been busy for most of my life. Can't I enjoy myself?"

Luo Congmin, who was sitting opposite him, couldn't help but roll his eyes when he heard this.

"So you came to see me just to have a drink in my car? How can I explain to the people at the Academy of Sciences when I go back? The president took the initiative to violate discipline and drove drunk with the president of the Academy of Sciences?"

Ding Yi burst into laughter and clapped his hands.

"You misunderstood me, little girl. I came to you for something important this time."

As he spoke, Ding Yi handed a document to Luo Congmin.

"The construction of Ring World has always been stuck on the issue of energy collection. We have been thinking about it for decades, but we have never figured out how to use 100% of the energy released by the sun to propel this behemoth."

"No matter how clever the design is, there will always be losses, or rather, the metal structure of the ring world cannot withstand the efficiency of this energy conversion, resulting in loss."

"We are not greedy. It is enough to convert half of it. After all, the law of conservation of energy exists. 100% conversion is not realistic. The overflowing energy will cause certain damage to the structure of the ring world itself. But the problem is that this thing is fine for one or two days. If it is used for a long time, we will not even have a place to replace the materials. We have to consider the future generations, right?"

"Professor Wang has tried at least hundreds of materials before, and even tried the nanorobots that Lin Xuan used at the beginning, but the results were very different from what he expected."

"But this problem was suddenly solved in the past few days."

"How to solve it?"

Luo Congmin was stunned. Lin Xuan had been troubled by this problem for a long time, and even dared not see Wang Miao in the past few years. How could it be solved suddenly?

"I don't know. Even I don't understand it, but we figured it out."

As Ding Yi spoke, he took out a suitcase from his side. The suitcase was not big, but after opening it, the things inside really made Luo Congmin's eyes light up.

"A model of the Ringworld?"

Ding Yi nodded without commenting.

"Toys produced by the Laupert Company are used to help 12-year-old children develop an understanding of the universe."

"I've heard of this company. They mainly produce some model figures related to the universe. I remember I bought a Reach figure produced by them last year. It's still on my desk."

As human exploration of the universe gradually unfolds, human beings have never stopped fantasizing about this sea of ​​stars, especially children. They are born on various planets in the solar system, are full of curiosity about the universe, and also have the ability to explore it.

The Laupert company takes advantage of this and often customizes some action figures for children, similar to the toy companies that made the Eiffel Tower. They make action figures of some famous landmark buildings, which are a good choice whether they are placed at home or for playing.

Of course, as one of the greatest human engineering projects in recent years, Ringworld is naturally included in the list.

Ding Yi pressed the start switch, and the sun in the middle of the model lit up. Then, the ring world began to rotate slowly, swinging up and down like a hula hoop.

This design is to allow people to observe this artwork from all angles.

But Luo Congmin naturally knew that Ding Yi asked him to come and see this specifically, not to appreciate the figurines.

She was quite smart. After just a little thought, her eyes lit up.