After a long time, Pang Xuelin came out of the reception room.

Cheng Xin, who had been waiting outside the door for a long time, hurriedly greeted him and asked, "Professor Pang, how are you talking?" ”

Pang Xuelin smiled: "He agreed!" ”

"That's good." Cheng Xin breathed a sigh of relief and said, "Then I'll go and see him." ”

Pang Xuelin smiled and nodded.

Ten minutes later, Cheng Xin came out of the reception room and got into the car with Pang Xuelin.

"How do you feel when you old classmates meet?"

"It's okay, it's just that he looks at me a little strangely, did you say anything bad about me to him?"

"In your eyes, am I such a person?"

"I can't tell!"

After a period of contact and getting acquainted with Pang Xuelin, Cheng Xin discovered that Pang Xuelin was just scolding himself, but in action, he didn't really do anything to himself.

Therefore, by now, she has gradually become accustomed to Pang Xuelin's various sarcasmies about herself, and even dares to reply a few words occasionally.

Pang Xuelin smiled faintly: "Yun Tianming likes you." ”

"I know."

"Huh?"

"I'm not a fool, besides, during college, there were many classmates who confessed to me."

"What about you...... Don't have any special feelings? ”

"What do you mean by a special touch?"

Cheng Xin looked at Pang Xuelin a little inexplicably.

Pang Xuelin suddenly reacted a little.

In the middle, it was Cheng Xin who single-handedly pulled Yun Tianming into the ladder plan, and it was not until Yun Tianming underwent brain resection that he learned from Vader that the star was given by Yun Tianming.

In addition, after the broadcast era, the two contacted again through remote communication, and Yun Tianming conveyed to Cheng Xin the vital information of dodging the attack of the Dark Forest.

Her feelings for Yun Tianming gradually deepened.

But this time, the plan to send stars was sabotaged by Pang Xuelin, and in the process of pulling Yun Tianming into the ladder plan, Cheng Xin only played the role of an introducer, mainly Pang Xuelin to persuade the other party.

Therefore, Cheng Xin did not feel too much guilt towards Yun Tianming, but was more or less sympathetic and pitiful.

Pang Xuelin shook his head and said, "It's nothing." ”

Cheng Xin sighed: "Yun Tianming is a withdrawn character, and I don't know if he can pass the final test. ”

On this point, she was a little conflicted, a little hoping that Yun Tianming could pass the test, but also a little worried about what would happen to him after passing the test.

If Yun Tianming can pass the final test, then there may be a glimmer of life, but what awaits him may be an extreme human sensory test that is more painful than death.

But if you fail to pass the test, waiting for Yun Tianming may be a dead end.

Pang Xuelin smiled: "I'm optimistic about him." ”

After a pause, Pang Xuelin said again: "Where are you going to go later, I finally returned to China, and I will give you two days off." ”

Cheng Xin thought for a while and said, "I'll go home, but my home is on the North Fifth Ring Road, a little far away." ”

Pang Xuelin said: "Okay, it just so happens that I am also going to the north to pick up someone, and I will send you home by the way." ”

The convoy set off quickly and finally stopped at the gate of the Central Academy of Fine Arts.

After a while, Zhuang Yan's life assistant pushed Zhuang Yan out of school.

Pang Xuelin got out of the car and greeted him.

Cheng Xin put her head in front of the car window and saw a beautiful girl who even she was willing to bow to herself was sitting in a wheelchair, laughing with Pang Xuelin.

Pang Xuelin touched her head dotingly, then bent down and hugged the girl sideways.

"This girl should be the one who talked to Pang Xuelin on the phone before."

Cheng Xin thought to himself.

Soon, Pang Xuelin hugged Zhuang Yan and entered the car.

Pang Xuelin is in the kind of elongated bulletproof car, the back row is a two-by-two seat, six people are no problem, he and Zhuang Yan, Cheng Xin, naturally there will be no crowding.

"Yan Yan, let me introduce you, this is Cheng Xin, my work assistant."

"Cheng Xin, this is my girlfriend Zhuang Yan!"

Hearing Pang Xuelin take the initiative to admit that he was his girlfriend, Zhuang Yan's fair little face couldn't help but flush a little, and nodded obediently towards Cheng Xin and said, "Sister Cheng, hello!" ”

"Zhuang Yan, hello!"

Next, Pang Xuelin sent Cheng Xin back to her home, and then returned to the western suburbs villa with Zhuang Yan.

In the evening, he invited Zhuang's mother, Li Yao and his wife over, but when he called Wang Miao, Wang Miao told Pang Xuelin that Dashi was also in the capital now.

So Pang Xuelin simply made a phone call and invited Dashi over.

After dinner, Zhuang's mother and Li Yao chatted with Zhuang Yan, while Pang Xuelin, Wang Miao, and Dashi went to the study.

Dashi's face was a little pale, and his spirit even looked a little sluggish.

Pang Xuelin already had a guess in his heart, but on the surface he still asked, "Dashi, what's wrong with you?" Why do you look so bad, weren't you with Dr. Luo Ji before? ”

Da Shi smiled bitterly and said, "Brother Pang, I may be going to hibernate." ”

"Hibernation?!"

Wang Miao on the side was taken aback.

Dashi said: "Yes, when Ye Wenjie was arrested in China last year, do you remember the nuclear bomb girl?" I was exposed to radioactive heavy metals with my bare hands, and when I went for a check-up a month ago, the doctor said that I had leukemia and I was afraid that I would not be able to find a suitable match for a bone marrow transplant in a short time. ”

"What about Xiaoming?"

Wang Miao said.

"That bastard boy, in my name, deceived a bunch of old men and old ladies to make some doomsday escape plan, and was sentenced to seven years not long ago, Brother Pang, my family is just such a single seedling for three generations. In the future, when he is released from prison, if he can help, you will help him......"

Pang Xuelin said: "Dashi, what are you talking about, don't worry, when Xiaoming is released from prison, I will arrange a job for him to ensure that he is safe and secure for the rest of his life." ”

"Brother Pang, brother, I thank you!"

Pang Xuelin smiled.

Da Shi's son Shi Xiaoming is also a character, according to the description in it, without his help, Shi Xiaoming himself is doing very well.

After being released from prison, he made money again with his ability, and before the big trough, he took the initiative to spend money to hibernate, survived the big trough era, and could reunite with Dashi in the future.

After talking about Shi Xiaoming, Pang Xuelin turned his gaze to Wang Miao and said, "Brother-in-law, how is your nano center now?" ”

Wang Miao said with a wry smile: "There is no shortage of funds now, but the pressure on scientific research is too great, and the government requires the output to exceed 100 tons within the year, and large-scale industrial mass production within three years, and my hair is almost gray now!" ”

Pang Xuelin nodded, he was not surprised by this question.

After the arrival of the three-body crisis, it is the academic community that has benefited the most, and the academic community that has the greatest pressure is also the same.

Needless to say, the most difficult scientific research funds and resources to apply for in the past are piled up without money at this time.

But the pressure is just as high.

In particular, key projects such as flying blade materials have even reached the level of requiring a military writ.

With the current industrial level of human beings, entering a state of great depression in 30 years has a lot to do with this abnormal social ecology.

However, for this situation, Pang Xuelin has no good way in a short time.

Some of the things that happened in human society during the first thirty years of the crisis era seemed difficult to understand to people before and after, and historians called it crisis infantilism.

It is generally believed that infantile disease is caused by the sudden arrival of an unprecedented threat to civilization as a whole; This may be true for individuals, but for human society as a whole, things may not be so simple.

The culture shock brought about by the three-body crisis has far more far-reaching impact than people imagined.

If an analogy is found, biologically equivalent to the distant ancestors of mammals climbing from the sea to land; Religiously, it is equivalent to Adam and Eve being expelled from the Garden of Eden; And historically and sociologically, there is no analogy at all, and everything that human civilization has experienced is insignificant compared to this event.

In fact, this event fundamentally shook the cultural, political, religious and economic foundations of human society.

This shock went to the deepest layers of civilization, but its effects quickly surfaced, and the most immediate consequence was a great trough that lasted for nearly half a century.

That night, the three chatted until nearly ten o'clock, when Wang Miao's family and Shi Qiang offered their farewell.

Zhuang Yan also went to bed during the holiday under the mandatory request of Zhuang's mother and the comfort of Pang Xuelin.

Pang Xuelin held a cup of tea and sat on the terrace until late at night.

No one knows what he's thinking.

Early the next morning, Pang Xuelin took Zhuang Yan to board the convoy and left the capital in a mighty way.

"Brother Pang, where are we going?"

"Didn't you say you always wanted to see our stars? I'm taking you to a nice place today. ”

"Huh?!"

Zhuang Yan's face showed a look of surprise.

Pang Xuelin took Zhuang Yan to Xinglong, Hebei, where the famous Guo Shoujing Astronomical Telescope (LAMOST) is located.

This astronomical telescope exists in the real world, and after coming to the three-body world, Pang Xuelin inquired with people in the astronomical world, but he didn't expect that there was also such a Guo Shoujing telescope in the three-body world, and the two telescopes were in a similar situation.

The initial goal of the Guo Shoujing Astronomical Telescope was to observe the large-scale structure of the universe, including the sky survey of 2.5 million galaxies in the northern and southern silver crown regions, the survey of 1.5 million bright red galaxies, and the observation of about 1 million quasars.

However, due to the fact that the design and installation of the telescope did not meet the original targets, the meteorological conditions at the telescope site did not meet the original assumption, and the observation limit could only reach about 18 magnitudes, which was far lower than the planned magnitude of 20.5, and the detection limit was only one-tenth of the plan, so it was impossible to effectively observe extragalactic objects.

As a result, the telescope was in an awkward position.

But no one could have imagined that LAMOST's failure in the galaxy survey would instead contribute to its success in the observation of the Milky Way.

In recent years, the spectral data of hundreds of millions of stars produced by LAMOST's Milky Way Sky Survey has become a unique treasure in global galaxy research.

With the advent of the three-body crisis, LAMOST has now focused on the study of the constellation Centauri, which is four light-years away from the solar system.

Today, Pang Xuelin is ready to pass through LAMOST to observe the DX3906 that belongs to him and Zhuang Yan 286 light years away.

The arrival of the wall-facing people was naturally warmly welcomed by the relevant parties.

Even he used LAMOST to observe the DX3906 he bought and gave to Zhuang Yan, which did not arouse any doubts.

Pang Xuelin stayed in Xinglong for two days, during which he and Zhuang Yan not only found their stars with the naked eye, but also used LAMOST to observe the spectral data of DX3906 (the real number of this star in the real world is HIP19983) and established the corresponding star database.

Zhuang Yan has a dreamlike feeling.

Being able to observe their stars with a telescope with Pang Xuelin is almost the most romantic thing she can think of in her life.

Not to mention, they also used a very large telescope to take a picture of the star.

Zhuang Yan even specially put the two of them with the photo of the star together as a mobile phone screensaver for her and Pang Xuelin.

After this trip, Pang Xuelin sent Zhuang Yan back to school.

And he himself went to the headquarters of the newly established Chinese Space Force.

He was warmly received by General Chang Weisi, the new director of the Political Department of the Space Force.

"Professor Pang, welcome to our Space Force to guide the work!"

"General Chang, I didn't expect us to meet again here after saying goodbye last year."

Pang Xuelin shook hands with Chang Weisi and said with a smile.

When he crossed for the first time, he was in a car accident, and Chang Weisi sent someone to protect him.

Unexpectedly, in less than a year, he has become a well-known wall-facer, and Chang Weisi has also begun to hold important positions in the Space Force.

"General Chang, I am here today to see the formation of the Space Force, as well as to hear your ideas for the future space fleet and space war, which must also be a hot topic that the Chinese military is studying. Today I'm a pure observer, you just have to work at your usual pace. ”

"Okay!" Chang Weisi nodded and said, "Professor Pang, it just so happens that we have a working meeting in the Political Department, so you can come over and observe." If there is anything that is not well received, please forgive me. ”

Then, Chang Weisi took Pang Xuelin to a conference room, and there were already many people in the conference room, most of whom were colonel-level officers in space force uniforms.

When everyone saw Pang Xuelin follow Chang Weisi into the conference room, the whole conference room suddenly became noisy.

No one expected that the person facing the wall would suddenly appear at the scene of an important military work meeting.

For a while, everyone was talking about it, speculating about Pang Xuelin's intentions.

"Quiet!"

Chang Weisi said.

The conference room fell silent for a moment.

Chang Weisi said: "I don't think I need to introduce him, everyone knows him, Professor Pang Xuelin, who faces the wall." Professor Pang came to attend the meeting today, mainly to see the formation of China's space force, and to discuss with you the concept of the future space fleet and space war. Now, we welcome Professor Pang. ”

In the conference room, there was a round of applause.

Pang Xuelin nodded at everyone, smiled and sat down beside Chang Weisi.

His gaze swept over the crowd.

Finally, his gaze rested on a young colonel officer who was sitting in the middle of the room, looking straight ahead, even without showing much surprise at his arrival.

Chang Weisi said: "Comrades, I only received the order to be the director of the Political Department of the Space Force a week ago, and today is the first time I have met with you. The responsibility of our Political Department, which must be clear to everyone, is how to keep our troops confident in the future war. Before this work begins, I would like to ask you a question: do all of you have this belief? Or in other words, do you think there is a possibility of victory in this war? If so, please raise your hand. ”

The conference room was quiet, Pang Xuelin was the first to raise his hand, and then someone raised his hand again, it was the officer that Pang Xuelin noticed before.

The officer glanced at Pang Xuelin with some surprise, and Pang Xuelin nodded at him with a smile.

The atmosphere in the conference room suddenly became strange.

Chang Weisi was a little surprised and said, "Professor Pang, can you tell me where your belief in victory comes from?" ”

Pang Xuelin said with a smile: "As a wall-facing person, if I don't even have the belief in victory, then what kind of wall-facing person should I be?" ”

Ha ha......

Even at the always serious military meeting, everyone couldn't help but let out a burst of laughter.

Pang Xuelin smiled faintly: "Okay, this is just a joke, I not only have the belief of victory, but also the belief of victory." Of course, the plan that underpinned this belief can't be said yet, but it's in my head, and if I do, then I'm not a wall-facer! ”

Everyone couldn't help but look at each other, and they didn't know if the wall-facing person was bragging, or if there was really such a thing.

Chang Weisi couldn't cry or laugh, so he had to turn his gaze to the colonel officer and said, "Comrade Zhang Beihai, what about you, where does your belief in victory come from?" ”

"Sure enough, it's him!"

Pang Xuelin raised his eyebrows and said secretly in his heart.

Zhang Beihai stood up, maintained an excellent military demeanor, and said: "Chief, I can't say a word or two about your question, after all, the establishment of faith is a long and complicated process. The first thing I would like to point out here is the erroneous current of thought in the troops. As you know, before the Three-Body Crisis, we had always advocated using a scientific and rational perspective to examine future wars, and this way of thinking has continued to the present with its powerful inertia, especially the current Space Force, which has been joined by a large number of scholars and scientists, which has further aggravated this trend of thought. If we think about interstellar warfare four centuries from now, we will never be able to build the belief that we will win. ”

"Comrade Zhang Beihai's words are very strange." One colonel spoke out against it, "Isn't firm conviction based on science and reason?" Beliefs that are not based on objective facts cannot be strong. ”

Before Zhang Beihai could refute, Pang Xuelin said loudly: "I think Comrade Zhang Beihai's words have some truth. The science and rationality we see now are not necessarily the real objective facts, we should see that things are developing and changing, and we cannot use technological determinism and mechanical materialism to see the future as a step to death! ”

Zhang Beihai glanced at Pang Xuelin in surprise.

The wall-facing person is stealing his lines.

Chang Weisi glanced at Pang Xuelin thoughtfully and said, "Professor Pang, do you have any other ideas?" ”

Pang Xuelin said: "For the army, the belief in victory must be established, and this kind of belief will lose the meaning and value of the army's existence. What matters is how to build that belief! ”

At this time, another officer spoke: "Professor Pang, we understand what you mean. It's just that the composition of the Space Force is very complicated at present, with some from various units of the Navy and Air Force, some from the military and local research institutes, and even some scholars from local academies. So how to build a belief in victory, our job is not easy to do. ”

Zhang Hokkaido: "I think that at present, we should at least start with the mental outlook of the troops, such as the clothing of soldiers, internal affairs, and how to establish a sense of mission. It is undeniable that our Space Force is currently undertaking the mission of a Academy of Military Sciences, but we should first realize that we are an army, and an army in a state of war! ”

Chang Weisi said: "As for how to establish a sense of mission, I think everyone has said it very well, and we can hold a special meeting to discuss the specific implementation plan in the next work." Next, we move on to another topic of today's meeting, which is how to establish a theory of space warfare. ”

"At present, as the research on the theory of space war in various countries is in full swing, it has quickly encountered problems: the research of interstellar warfare is undoubtedly based on the level of technological development, but now, all basic research has just begun, and technological breakthroughs are still far away, which makes our research lose its support. In order to adapt to this situation, the General Headquarters revised its research plan and divided the original single theoretical study of space warfare into three independent parts, so as to adapt to the various technological levels that the human world may reach in the future, namely, low-tech strategy, medium-tech strategy, and high-tech strategy. ”

"At present, the definition of the three technical levels is underway, and a large number of index parameters will be determined within each major discipline, but the core parameters are the speed and range of the 10,000-ton spacecraft."

"Low-tech level: the speed of the spacecraft reaches about 50 times the speed of the third universe, that is, about 800 km/s, and the spacecraft does not have the ability to eco-cycle. In this case, the combat radius of the spacecraft will be limited to the interior of the solar system, that is, within the orbit of Neptune, within a space range of 30 astronomical units from the sun. ”

"Medium technical level: the speed of the spacecraft reaches about 300 times the speed of the third universe, that is, 4800 km / s, and the spacecraft has partial ecological cycle capabilities. In this case, the combat radius of the spacecraft will be extended beyond the Kuiper Belt, within 1,000 astronomical units of the Sun. ”

"High-tech level: the speed of the spacecraft reaches about 1,000 times the speed of the third universe, that is, 16,000 km/s, that is, five percent of the speed of light; The ship has full eco-cycle capability. In this case, the spacecraft's combat range will be extended to the Oort Nebula, and it will initially have the ability to travel interstellar. ”

"All the comrades present here today will become members of the space war theory research group. Although there are overlapping parts in the research of the three theoretical branches, the research institutions are independent of each other, and the names of these three institutions are tentatively designated as the Low-tech Strategic Research Laboratory, the Medium-Tech Strategic Research Laboratory, and the High-Tech Strategic Research Laboratory. Let's talk about your choices. ”

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