In the next few days, Pang Xuelin continued to study the process of proving the BSD conjecture, and he even asked the little nurse Olivia to find him a pen and paper, because the wound was close to the right shoulder, he could not use his right hand, so he had to use the pen in his left hand to calculate.

Although this was laborious, it did not make Pang Xuelin's research enthusiasm much lower.

Soon, there was one more rumor about nerds in the hospital.

During this period, Shi Qiang and Kante both came to see Pang Xuelin a few times, and when they saw Pang Xuelin enjoying himself alone, they were relieved.

A week later, Pang Xuelin was able to get out of bed and walk around.

So he stopped sleeping in a hospital bed during the day and began to go downstairs to do research.

Downstairs in the hospital, there is a lawn and a small garden, as well as tables and chairs for people to rest.

Pang Xuelin often stays below for half a day.

On this day, he had just gone downstairs and sat down, spreading out the manuscript paper, preparing to calculate, when suddenly a voice came from in front of him.

"Brother Pang, I've really convinced you, I've seen a lot of nerds, it's really rare to be as desperate as you...... No, there should be one, that guy is also a math genius, but he is different from you, the reason why he studies mathematics is because he thinks life is too boring, and math can bring him some fun. ”

Pang Xuelin raised his head and saw Shi Qiang walking over with a smile.

Pang Xuelin said with a smile: "Dashi, you are here, sit!" Who is that man you are talking about? ”

Shi Qiang smiled: "That guy used to work for your ETO, specializing in the study of mathematical three-body problems, but he was only engaged in research, and he was not clear about the three-body organization of the earth, and after investigating for a while, we released him, and then I heard that he had found a temple and was ready to become a monk." ”

Pang Xuelin said: "You're talking about Wei Cheng, right?" ”

Shi Qiang was slightly stunned: "Do you know him?" ”

However, he quickly reacted: "That's right, you are a member of the advent faction, Wei has become a salvationist worker, you are both opposed, and it is natural to know his existence." ”

Pang Xuelin just smiled and didn't speak.

In the novel, Wei Cheng is a character who wants to get rid of the Adventist faction quickly, for fear that he will succeed in researching the three-body problem, so that the three-body man can reproduce smoothly in the constellation Centauri, so as to give up the idea of invading the earth.

Bang Bang –

Shi Qiang took out a cigarette and lit it, took a deep breath, and said, "Brother Pang, I came here today to say goodbye to you." ”

"Farewell?" Pang Xuelin was slightly stunned, "You're going back to China?" ”

Shi Qiang nodded and said: "The matter of the advent faction is almost over, I am a straight person, easy to offend people, and I can't get along with the CIA guys, so the old chief transferred me back." By the way, I also told the old chief about the plan you proposed, and the old chief said that you are a person of great wisdom. Brother Pang, I don't know if you are going to return to China after you recover from your injury, or will you continue to stay in the United States? ”

Pang Xuelin said: "I should return to China, that is, I have participated in the ETO before, I don't know if the country welcomes me back." ”

Shi Qiang said with a smile: "Brother Pang, you think too much, how can we not welcome a talent like you, not to mention, you have also made great contributions to mankind!" ”

Pang Xuelin said: "That's good, I estimate that I will return to China within a month or two after I recover from my injury." ”

Shi Qiang said: "Brother Pang, remember to come to me when the time comes, I am a big boss, you and I may not be able to talk, but I know a few scientist friends, and you should have a common language." ”

Pang Xuelin couldn't help but be slightly stunned, the scientist friends that Shi Qiang knew should be Wang Miao and Ding Yi.

Wang Miao is the protagonist of the first part of "The Three-Body Problem", and he is also the chief scientist who researches flying blade materials.

Not to mention another Ding Yike, a physicist and discoverer of macroatoms, both in "The Three-Body Problem" and in Da Liu's other science fiction novel "Ball Lightning", he has left a deep impression.

Ding Yi of iron, the Virgin of flowing water.

It's not just a casual talk.

Pang Xuelin couldn't help but smile and said: "No problem, when I return to China, it will inevitably disturb you!" ”

Shi Qiang laughed and said, "Don't worry, when the time comes, I will take you around Sijiu City and eat all the food in the streets and alleys." ”

The two chatted for a while, and Dashi said goodbye and left.

Pang Xuelin shook his head and continued his research.

But not long after the research, someone came over again.

This time, it was a woman who spoke.

"Hello, Dr. Pang!"

Pang Xuelin raised his head, and what appeared in front of him was an exotic Asian woman in her forties.

She has a petite figure, a unique temperament, and a faint trace of crow's feet can be seen at the corners of her eyebrows, so it can be seen that she must have been a rare beauty when she was young.

Kante consciously followed her.

Pang Xuelin couldn't help but be taken aback, and asked tentatively, "Ms. Say?" ”

Say smiled and stretched out his hand and said, "Dr. Pang, I took the liberty of visiting and chattered. ”

The person who came was the new Secretary-General of the United Nations, Ms. Say, another beautiful politician in the Philippines who has contributed to the world after Arroyo.

At the beginning of the crisis era, Say made outstanding contributions to balancing the interests of all countries and restructuring the power structure of the United Nations, and the Stars Project initiated by her has had a profound impact on the history of human civilization.

Pang Xuelin got up and shook Say's hand, and said, "Ms. Say, please take a seat." ”

The two sat down facing each other, and Say looked at the manuscript paper on the table with some curiosity, and asked, "Dr. Pang, what kind of research are you doing?" ”

Pang Xuelin smiled and said, "It's some research on the BSD conjecture. ”

Say said: "Did the research go well? ”

Pang Xuelin said: "I already have some eyebrows, and I am sorting out the papers." ”

Say didn't know much about academics, so he didn't think there was anything unusual about Pang Xuelin's words, but Kanter, who was on the side, was shocked and said, "Dr. Pang, you have proven the BSD conjecture?" ”

Pang Xuelin blushed a little and said: "If nothing else, there will be results soon!" ”

Curious, Say asked Kanter, "Is the BSD conjecture important?" ”

Kantor said: "This conjecture is well-known in the world of mathematics and is known as one of the seven great problems of the millennium. If Dr. Pang can prove the BSD conjecture, he will win at least a Fields Medal. ”

Say couldn't help but be taken aback, although she didn't know the difficulty of the BSD conjecture, she knew the gold content of the Fields Medal.

The Fields Medal is known as the Nobel Prize in mathematics, and almost all those who can win the Fields Medal are the top mathematicians in the world.

Say looked Pang Xuelin up and down, and said with a smile: "Dr. Pang, I didn't expect your mathematical attainments to be so profound, although Zhizi locked our exploration in basic physics, there is no way to stop our research in other disciplines, thank you for your research, every bit of your effort is providing strength for human civilization to resist the invasion of the three-body civilization!" ”

Pang Xuelin smiled a little awkwardly and said, "Ms. Sayi has won the award." ”

The proof process of the BSD conjecture is given by the system, although there is no problem in counting it on his head, but Pang Xuelin is still a little embarrassed.

He hurriedly changed the topic and said, "Ms. Say, I don't know what you are looking for me this time?" ”

can let the UN Secretary-General come to him in person, Pang Xuelin doesn't think that the other party is just chatting with him.

Say Zhengse said: "Mr. Pang, the plan you proposed before to face the wall, after I discussed it with the representatives of all members of the Security Council, including the leaders of various countries, all think that this plan is a genius idea, which grasps the most fatal weakness of the Trisolarans and is extremely feasible. However, now that the United Nations is undergoing reform, and the Security Council is preparing to be reorganized into the Planetary Defense Council (PDC), this plan will not be implemented until at least a year or two later. I came here today to ask Dr. Pang two things. ”

"Tell me something!"

Say said: "The first question, do you have a suitable candidate for the wall-facing person in the wall-facing plan?" ”

Pang Xuelin shook his head and said: "Ms. Sayi, you are stumped on me by this question, the person facing the wall must have a strong strategic thinking ability and execution, and at the same time must have a tenacious will and the courage to never compromise, I really don't have a very good candidate for such an important position." I think it would be more appropriate for this to be recommended by the members of the Council. After all, the authority of the wall-facing person is too great, and the interests of all parties must be taken into account. ”

Say said with a smile: "Mr. Pang, you can summarize the requirements of a qualified wall-facing candidate so well, you are really qualified to recommend a wall-facing candidate." However, what you said is also right, the candidates who face the wall also need to take care of the interests of all parties, and I am afraid it will be difficult to elect them in a short time. But in my opinion, there is one right now, and I'm sure the permanent members of the Council will agree. ”

Pang Xuelin was slightly stunned, and asked suspiciously: "Who?" ”

Say smiled: "Far away, close at hand!" ”

Pang Xuelin was taken aback, pointed to himself and said, "Ms. Sayi, you mean, let me run for the wall-facing person?" Isn't that a joke? ”

Say said: "I'm not joking, Mr. Pang, you have been in ETO for so many years, and you are familiar with ETO, and you are also familiar with the three-body civilization. And you are the proposer of the wall-facing plan, you should know better than others about the core needs of the wall-facing plan, and you can put forward such a subtle counterattack plan, which shows that you have strong strategic thinking and logical thinking ability, which are in line with the requirements of the wall-facing people! ”

Pang Xuelin smiled bitterly: "Ms. Say, I used to be born in ETO, so you are not afraid that I will betray the human race again?" ”

Say smiled, "We believe in you! ”

Pang Xuelin couldn't cry and laughed, and said: "Ms. Say, don't joke with me, there are people who are more suitable for this position than me, such as His Excellency US Secretary of Defense Taylor, who put forward a new type of war theory, and President Rediaz, who made Americans suffer a lot in the war, they all meet the qualifications of those who face the wall." ”

Say smiled and said, "Dr. Pang, look, didn't you just give two qualified candidates?" However, the question of the candidate for the wall-facing person has not yet been decided for a while, and I will only ask you what you think today, and the rest will be talked about when the time comes! Then I won't bother Dr. Pang, Dr. Pang, goodbye. ”

Pang Xuelin hurriedly got up, shook hands with Say, and looked at the other party's graceful back, a little frightened.

The wall-facing person is one of the most pitiful positions in history, with the greatest power in the history of mankind, and at the same time the heaviest responsibility in history.

None of the wall-facing people in the novel have a good end.

Even Luo Ji, who is known as the savior, was not separated from his wife in the end, became a loner, and was scolded as the biggest dictator in human history.

Luckily for today, however, Say was only asking for his opinion in private.

If he was directly awarded the title of the wall-facing person at the United Nations General Assembly, Pang Xuelin would probably not be able to refuse if he wanted to.

Because the first job of the wall-facing person is to disguise himself, the thoughts and behaviors shown by the wall-facing person to the outside world should be a complete illusion, a well-planned disguise, and the wall-facing person needs to mislead and deceive the whole world, including the three-body civilization and human civilization, and finally establish a huge bewildering maze of illusions, so that the enemy loses correct judgment and delays the time for the enemy to judge the true strategic intentions of mankind.

Once you are awarded the title of the wall-facing person at the extraordinary session of the General Assembly, even if you refuse, the United Nations agrees, but who can be sure that you are doing this for the Trisolaran?