"I don't know if there were survivors nineteen years ago, but I believe there were. ”

Wang Xueyuan groaned and said, "Even, in the first year of the sudden disaster, I was very suspicious that it had something to do with these alien civilizations. ”

His words reminded Su Bei and Tian Xuanxuan of many things.

How can human beings live a stable life for so many years, but they encountered various natural and man-made disasters 19 years ago?

It's really hard to explain.

And this alien civilization that landed with the exotic fire is likely to be the culprit.

"And as for why they haven't come again so far, Subei, you can think about it. ”

Wang Xueyuan showed a look of examination on his face, and asked with a smile, "What do you think is the reason?"

Tian Xuanxuan's eyebrows unfolded, and she instantly had an idea.

Su Bei saw that these two people understood and didn't say anything, and couldn't help but start thinking calmly about the cattiness.

Thinking of the word "nineteen years", he suddenly had a little inspiration, and opened his mouth and said: "Professor Wang, the reason you say is that you mean the general theory of relativity?"

General relativity is a theory proposed by humans in 1915 that expounds the depth relationship between gravity, mass, velocity, space and time.

"Yes, the children can be taught!"

Wang Xueyuan touched his beard and smiled, nodded and said, "In the general theory of relativity, it is explained that the faster the speed, the slower the time." Extraterrestrial civilizations have not descended for nineteen years. ”

"But is this nineteen years for us human beings, and nineteen years for them?"

His words hit the nail on the head.

It's like the mythical story "one day in heaven and one year on earth."

Human beings have indeed spent nineteen years on Earth, but for an alien civilization that is 2.73 million light-years away, it may only be nineteen days.

Alien civilizations in Dyson spheres, with the expansion of galaxies and the universe, may be different from the earth, so the flow of time is naturally different.

In addition, such advanced civilizations may adopt a state of high-speed operation in order to prolong the length of their life.

"Professor Wang, if everything really goes according to your guess, then sooner or later they will come again, and when the time comes, won't the human race face a catastrophe?"

Tian Xuanxuan's heart also became heavy all of a sudden, and she asked worriedly.

"Yes. Wang Xueyuan stared at the dark and silent starry sky in the heights, and said abruptly, "Human beings seem to be huge in number and technology are developing rapidly, but in fact, we are compared to this universe...... It's so fragile!"

In the vast universe, endless space, and endless time, human beings are like newborns, who may die anytime and anywhere.

"Professor Wang, what are you going to do?"

Su Bei's face was heavy, and he felt a burst of depression for this organization called "Red".

Although he had tried his best to look down on this mysterious organization hidden in the shadows, now it seemed that he had despised their existence and strength after all.

He couldn't help but think of the exchange list of the mall's treasure trove that he saw in the light brain of the crimson certificate.

It's no wonder that there are exchangeable contents for "Cosmic Enlightenment Knowledge", "Cosmic Apprenticeship Knowledge", "Cosmic Elementary Knowledge", "Cosmic Intermediate Knowledge" and "Cosmic Advanced Knowledge".

However, the most advanced knowledge requires 10 million star coins to exchange, which is really sky-high, and I am afraid it will take decades to accumulate.

"By the way, Shi Yi's long skills are used to control them, I wonder if I can exchange the knowledge of the 'red' organization and give it to the human race to counter them?"

Su Bei suddenly thought of it, but immediately gave up this unrealistic idea.

Because doing so is far less quick than finding the core members of the two "red" organizations, such as Russ Cage, and copying their files through the Tiandao server.

Wang Xueyuan did not answer Su Bei directly, but looked at Tian Xuanxuan seriously, and asked again: "Teacher Tian, I will ask you now, are you willing to join the Shimmer Laboratory and become the successor of the proton layer?"

Tian Xuanxuan fell silent all of a sudden.

Wang Xueyuan, Shimmer Laboratory, is it all for the sake of the race, for the sake of human beings, and for the survival of this starry sky?

She suddenly felt lost.

She was once born in Lingnan City, Qin Province, and was a descendant of the Tian family, a family of nine martial arts families.

However, since awakening her genetic talent, she has been living in fear.

Gradually, she became inferior and cowardly.

It wasn't until she arrived in Shuhe County and became an ordinary teacher at Qiushui High School that she felt the vitality and vigor of her students that she found a new meaning in life.

However, now, out of her love for scientific research, she has entered Wang Xueyuan's field of vision.

Do you really want to be invited to join the Shimmer Laboratory, which ranks tenth in the country's top scientific research mecca, and become the successor to the control of the proton layer in the core area?

This is no longer inferior to the Tianjiao of Xiamen National Research Institute!

"But, I ...... Can you put it down?"

She asked herself repeatedly in her heart, her expression slowly calmed down, she looked up at Professor Wang Xueyuan, who was looking forward to it, and said, "Professor, thank you for your kindness." ”

Wang Xueyuan's expression was shocked, his smile disintegrated, and his expectant face turned into a trace of weakness.

Eventually...... Still don't say yes?

Tian Xuanxuan bit her lip slightly and continued: "Professor Wang, if you are still willing to invite me after a year, then my answer is that I am willing. ”

"But right now, I can't say yes. Because, my students...... Haven't graduated yet. ”

Her tone was very light, but it fell heavily on the hearts of the two people present.

There is an unusual weight in this sentence.

Su Bei subconsciously clenched the metal sailboat in his hand, as if he was clenching his heart, and then suddenly raised his feet and walked step by step to the experimental table with a dark grid.

"Professor Wang, I did hide something. ”

He pressed the metal sailboat into the dark compartment at once, and used the "blood" talent to repeat the trick and seal it inside, before turning around and saying.

Wang Xueyuan, who was disappointed, and Tian Xuanxuan, who had made a decision, suddenly looked at Subei who was speaking.

The latter slowly pulled out a card from his pocket, showing the crimson card face, and said, "This is an invitation from a mysterious organization that St. John received. ”

"The name of this group is 'RED', and the material of this card is very special, and it has a strong mutual attraction with metal sailboats. ”

"That's why the metal sailboat is desperate to fly towards me. At the same time, it exudes a scorching power when approaching a metal sailing ship. ”

"On the other hand, metal sailboats are now as cold as a thousand years of ice. ”

As soon as Wang Xueyuan heard this, he understood the importance of the matter, and asked vigilantly: "Does it have the ability to eavesdrop?"

Obviously, this kind of extraterrestrial civilization makes him extremely cautious.

Su Bei nodded and said, "Yes, but I used a means to ban it." ”

What he said was the clever use of the "fork" directory of the Tiandao server, and listed the crimson certificate as a private goods under the "Zheng Peiyuan Electronic Repair Shop".

As the controller of the electronic repair shop, he has the control and editing rights of the items in the store.

Instead of stopping the wiretapping and location functions of the Crimson Card, he faked the content of the eavesdropping and location.

At this moment, under the monitoring of the "red" organization, this crimson certificate is still in Shuhe County, on the shelves of Zheng Peiyuan's electronic repair shop.

When Wang Xueyuan heard his words, he finally groaned, his expression relaxed, and asked, "Subei, what else do you know about this card?"

Tian Xuanxuan also glanced at it curiously, she had also seen this card, which the two of them had taken from the blonde beauty killer "Jane" when they were discussing with Mei at that time.

"Professor, this card, called Crimson Card, is the identity credential of this mysterious organization. ”

Su Bei hesitated, and finally said truthfully, "Its material is called Star Dark Gold, which is hard and indestructible, and has a variety of functions such as communication, positioning, and monitoring. ”

At the same time, it also has built-in light brain technology of this organization, which can accept commissions, hand over tasks, form a team, or exchange items in the store's treasure trove. ”

Su Bei briefly introduced the usefulness of the Crimson Certificate, then shook his head and said, "However, I can't open the interface of the light brain to show you, because it will be detected by the 'red' organization." ”

His words shocked the two of them.

Wang Xueyuan glanced at him deeply, and said meaningfully: "You are worthy of being the son of the Dragon King of Kyoto, Subei, it seems that you know more than I imagined." ”

Tian Xuanxuan looked her students up and down again, she really didn't know how many secrets Su Bei was hiding, and she could refresh her cognition every time.

"Professor Wang, I've already said what I should say, can I tell me about your plan now?"

Su Bei took back the crimson certificate and asked solemnly.

The eyes of the two collided in mid-air.

Wang Xueyuan's eyes gradually became deeper, and he was silent for a long time before he said slowly: "Since the existence of extraterrestrial civilizations, I have set three plans. ”

He reached out and pressed it on the main console, switching curves and displaying them on the screen.

"This first plan is self-improvement. ”

"Our human civilization is weak, and the probability of advancing to a fourth-level civilization in a short period of time is zero. However, we have home advantage. ”

"The other party is coming from a distance of millions of light years, and every time it comes, it must consume a lot, it is difficult to overwhelm the territory with large soldiers, and there is no way to replenish energy in time. ”

"So, as long as we can withstand their first attack, we may be able to hold on to it and buy more time for humanity. ”

Wang Xueyuan stretched out his hand to point to the content on the screen and said, "This is the scientific research results that I have researched or am researching in recent years, all of which are related to space. ”

Tian Xuanxuan was right when she said at the Expo Center, through the entropy increase chord theory, we may be able to achieve spatial leaps with the help of energy strings. ”

Speaking of this, he turned to look at Tian Xuanxuan, his eyes showing appreciation, as if he was saying that he was not looking at the wrong person.

When Tian Xuanxuan heard this, she couldn't help but ask, "Professor Wang, could it be that one of the factors why you are looking for me as your successor is also because of this?"

Wang Xueyuan nodded and replied affirmatively: "Yes, I need someone who can turn this set of scientific research results from theory to practice." ”

"And you, you can be this person!"

Su Bei and Tian Xuanxuan couldn't help but be stunned, such words of appreciation came out of Professor Wang Xueyuan's mouth, which was an extremely high honor.

Tian Xuanxuan couldn't help but feel a little guilty, and said, "Professor Wang, you praised it falsely. I'm ashamed. ”

After all, she had just rejected Wang Xueyuan.

However, Wang Xueyuan explained his three plans at this moment, but he did not hide his secrets.

He is not only looking at the face of the son of the Dragon King of Su Beijing, but also because he is sure that Tian Xuanxuan will become a member of the Shimmer Laboratory sooner or later and become the successor of the proton layer!

"Space leap is the first step for human beings, and only with the ability to advance and retreat freely can it be possible to maneuver in the universe with powerful alien civilizations. ”

Wang Xueyuan returned to the topic and continued.

He clicked the switch on the main console, and a human body and mecha device appeared on the electronic screen.

"I have a good friend named Ou Yeshan, who works at the Xiamen National Research Institute. He is also aware of the news of alien civilizations and is good at studying mechas. ”

Wang Xueyuan showed an expression of "I am not alone" and said with a smile, "I received his latest news not long ago, he has developed the first generation of mecha. ”

As he spoke, he was a little on the screen.

A red mech quickly zooms in, and then forms a dynamic attack effect.

"This is our country's mecha technology, and it is also the first generation, called Executioner No. 1. ”

"In the future, this set of technology will develop rapidly, spread to the whole country, and closely integrate with the basic warriors to form a high-end force to fight against alien civilizations. ”

Wang Xueyuan turned around, looked at Su Bei and Tian Xuanxuan with a solemn face, and said, "This is my first plan, self-improvement!"

Su Bei nodded, feeling a little reassured, there is such a professor in Xiaguo, who is the cornerstone of Zhenguo.

However, this alone is not enough.

He looked at Wang Xueyuan and asked in a deep voice, "Professor Wang, what is your second plan?"

Tian Xuanxuan also showed an excited look, no matter how terrifying the alien civilization was, there was a way to deal with it after all.

Wang Xueyuan's tone froze, and he sighed: "It seems that you have also thought of it, the first plan seems to be complete, but it is not enough to deal with such a strong enemy as an alien civilization. ”

"I've thought about it, the fourth-level civilization is extremely powerful, and it's not something we can defeat at all. ”

"Then, there are only fourth-level civilizations or even higher-level civilizations that can deal with them!"

He pressed the button on the console again, and a dark starry sky appeared.

This star field is somewhat similar to the star field on the ceiling, and it seems extremely dead.

Su Bei's eyebrows twitched, and he thought of a possibility, but he didn't ask and confirm, but quietly continued to listen to the other party's explanation.

Wang Xueyuan pointed to the dark dead star field and said: "Thirty years ago, some scientists speculated that there was a Dyson sphere in the Milky Way. ”

"You see, this star field, after decades of human observation, has a 70% chance that it is a hidden Dyson sphere. ”

"This civilization is also a high civilization, at least level four. It's just that I don't know why, they've been lurking quietly and have never appeared. ”

"Even, we are so close to it that we have not suffered from their aggression and colonization. ”

Su Bei and Tian Xuanxuan glanced at each other, thought of a piece, and asked in unison, "Professor, could it be...... What do you mean...... Wake up this Dyson ball?"

Wang Xueyuan nodded affirmatively and said, "Yes, this is my second plan." Only a fourth-level civilization can deal with a fourth-level civilization!"

(Two chapters combined into a large chapter)