After waiting for more than a month, the news finally came at the end of the day, Professor Shen Wei asked the disciples to talk about their views on this news, Xu Jiawei was the last to speak, he said while thinking: "Doesn't it say that the ruler is short and the inch is long? I don't think we can blindly think that their scientific and technological level is higher than ours, don't we have a higher side than them? I think our space flight technology must surpass theirs." They started from the prehistoric generation, and they did not send a message to the earth for millions of years or tens of millions of years, indicating that they were flying safely all the way during this time, and there was nothing to say, or in order to save physical energy, or to avoid loneliness during the long-term flight journey, or for some other reason that we don't know, the prehistoric people let them fall asleep, and they will automatically wake up when they arrive at their destination. Their original goal had been set, and now they had just arrived, and when they arrived, they sent a message to Earth asking for instructions. It took them millions, if not tens of millions, of years to get to 15 billion light-years away, and I don't think our technology will take that long. ”

Professor Shen Wei was very satisfied with the answers of the disciples, and they all talked about their views from different angles, which together is a very complete explanation. He said happily: "Students, you are all right. Now the first step has been completed, according to the three-step action set at that time, no, it is four steps, and then Xu Jiawei added one. I would like to reiterate the next three steps: the first step is to build mutual trust, the second step is to determine their location, to understand their environmental conditions and their needs, and the third step is to send the spacecraft out. ”

Xu Jiawei is glad that the professor has taken his advice and lined up the work steps.

"The second step is key. Professor Shen Wei said, "After all, it is not a generation of people who are separated by each other, but at least one generation of human beings, and I am talking about at least, not excluding that there are several generations of human beings in between." ”

"Ah, Professor, you're too bold, aren't you, there will be several generations of humans in between?

"Anything is possible. Professor Shen Wei said.

"Oh my God, it's incredible. ”

Professor Shen Wei continued: "Will the communication between the two generations of human beings go smoothly? I think as long as we have patience and confidence, we will definitely succeed in communication. Now there are three favorable conditions, one is that everyone uses Chinese characters, and the innate conditions for communication are very good, and the second is that the voice has not changed, although it is two generations of human beings, they can understand each other's written information. I deduce from this that the language exchange between us is not a problem, but of course this is a later story. Third, I can conclude that we must be their descendants, and the genetic code inheritance determines our natural blood relationship, and it is naturally much easier to communicate. ”

"Yes, I very much agree with the professor's analysis. Xu Jiawei said, "If I decide to send someone over, I will be the first to sign up, let me take the lead and communicate with them in the language, professor, this time you don't want to stop me." ”

"Oh. It seems that you are the number one anxious person on earth. Professor Shen Wei smiled and said, "Do you have any additional analysis?"

"Nope. ”

"Nope. ”

"Okay, let's start with the second step plan, this step is done, the next step is easy. Everyone continues to analyze, how to reply to this message. ”

"We don't know what's going on over there, so what's the reply?" Ms. Lin said.

"Lin Shanshan is right, first of all, we need to figure out what to reply, we might as well use our own thinking to figure out, if we are over there now, what instructions do we need to get? Second, should we tell them that we are not their generation of human beings?" Xu Jiawei said.

Professor Shen Wei encouraged Xu Jiawei to continue.

"I'm just thinking about it, and I haven't figured out the specifics yet. Xu Jiawei said a little embarrassed.

"Oh. Then you can follow Jia Wei's train of thought to discuss. However, I think that the first thing to do is to make it clear whether to tell them that we are not from the same generation, and that this problem is solved, and it will be easy to reply. Professor Shen Wei said.

Lin Shanshan said: "If we don't tell them, we have to pretend to be the same generation of human beings as them, but how we imitate what their generation of human beings think, the whole environment and what we see and hear are fundamentally different." Although the tone of voice has not changed, the people we see and the things they experience are completely unimaginable, and we can't even guess if they are also discussing problems in the laboratory, who are the people around them when they set off, what they are asked to go out for, etc., we can't even guess. I think it's better to tell them first. ”

Chen Jie picked up and said: "If you tell them, what kind of results will happen? If we analyze with our generation of human beings, there will be such several situations, one is horror, their generation is actually extinct, then they will have no family to return." The second is confusion, we are their descendants, how to get along. Third, they are depressed and have no future in sight, as if they are lonely ghosts wandering in space. The fourth is to disappear, anyway, the same generation of human beings has become extinct, and it is better to go with them and no longer have contact with us. ”

Ma Biao said: "Can we push the third step to the second step, first find out their location, in this process we can communicate more, communicate more, and a sense of trust will arise." ”

Xu Jiawei said: "Maybe it's not as complicated as we imagined, we can be completely open and bold to contact them, and say whatever we want." We might as well do several tasks together, one is to determine the manned spacecraft to meet them, and there can be a substantial action to build a spacecraft on the Martian side, even if it does not go to the end of the sky in the future, the spacecraft is still useful. The second is to try to understand their location, which I don't know if Ma Biao can locate, and it is best to try to track their target. The third is to tell them our situation directly, see their reactions and then deal with them accordingly, I don't think they will go to the extreme and disappear directly, even if they disappear from the extreme, if Ma Biao can track them, then our spacecraft will catch up with him one day. ”

"The target is too small to track, but it will be detected if there is a lot of general connection. Ma Biao said.

"Okay, as long as we have a general direction, even if they disappear, then we will fly to this general direction, and when we get nearby, you can always find the target. Xu Jiawei said.

"There are no guarantees. Ma Biao said.

Although the discussion was very intense, but could not agree on the opinion, Professor Shen Wei had a score in his heart, but he didn't want to say it directly, he wanted to give all the opportunities to the disciples, and do everything possible to make the disciples think more, only in this way the disciples will achieve greater achievements in the future. He said: "Now we will discuss the question of what instructions you would like me to receive if you reach the end of the day." ”

"If you can't get over, do you want to come back?"

"Since I'm over there, I can't run in vain, can you let me stay and continue to explore. ”

"I want to walk around this wall and see if there's a passage, I don't believe it's the edge of the universe. ”

"One word: Wait, I'll do whatever the professor tells me. ”

Professor Shen Wei snorted.

In response to the various views put forward by the disciples, Professor Shen Wei finally said: "I think this time we will not send a message of one or two sentences, but should synthesize all everyone's opinions and send them over. ”

"Yes, it's not easy to contact once, since we have confirmed that we have been contacted, why don't we say more. The disciples unanimously agreed with the professor.

"Can we say this: We are happy to know that we have arrived safely, how is your health now? How are you feeling along the way? What about the outside environment, what else is there besides the invisible wall? Do you need any help from home? What do you think should be done next? Do you want to send a spaceship to meet you? What is the direction now?" Professor Shen Wei said.

"These are all things that we need to understand, and they don't show that we are descendants, and it won't affect their emotions, I think okay, let's build mutual trust first. Lin Shanshan said.

"I'm in favor. Xu Jiawei said, "Professor, can we develop a spacecraft that can travel so fast as information, so that there will be no inconvenience in space travel, ha." ”

Professor Shen Wei laughed and said, "Very good, you go and develop it, give you 100 million years." Do you have anything to add?" The professor saw that everyone had no questions to add, so he said that he would send it out according to what he just said.

"Although our current interest is more distant, Tianhua Xiaozhi should not relax his attention there. ”

"Professor, what does Tianhua Xiaozhi need to do now?" Xu Jiawei said.

"Observe. ”

"It should still be in flight for the next few days, so there's nothing to observe, right?" Ms. Lin said.

"Now our minds are at the end of the day, diluting the attention to Tianhua Xiaozhi. Ha ha. Xu Jiawei said.

"Well, let's get off work, everyone has been nervous for a while, you don't have to live in the house at night, go home and have a good rest, you can sleep lazily tomorrow, and you will be free to go to work tomorrow, you can come when you want, you can come when you want, and even the day after tomorrow. I'll be on duty in the lab. The professor said and prepared to walk out of the lab and get something from the office.

"No, no, no. The four disciples actually spoke so neatly.

"Don't fight with me, Tianhua Xiaozhi, you didn't order. I can still do some quiet work in the lab. ”

"Professor, let's do it, you should pay more attention to rest. Lin Shanshan said.

"Yes, Professor, if we don't come collectively, you won't be able to be on duty alone for so long. Xu Jiawei said.

"I'm a homeless person anyway, I can accompany the professor, you can go with confidence. Ma Biao said.

"You must listen to the teacher's words, go ahead, put down your work, relax your mind, there is more important work waiting for you to do. Professor Shen Wei said, "Of course, Ma Biao can stay with me, anyway, your home is in the institute." ”

The professor said so, and the disciples had to leave.

"Ma Biao, come here, I have something to tell you. Xu Jiawei shouted Ma Biao outside.