Zhang Yuan and Zhao Qingfeng looked at each other, carefully pondering the unique physiological phenomena brought about by the different environments.

Oxygen is a necessity for human beings, and the large amount of energy brought by aerobic respiration nourishes every cell in the human body. Without oxygen, humans will suffocate to death in a short period of time.

But in the eyes of many biologists, oxygen is also a chronic poison!

A harmful substance called "oxygen free radical" produced by human respiration can cause damage to the biofilm system and intracellular oxidative phosphorylation disorders, which are direct participants in human disease, aging and death, and are very harmful to human health and longevity.

The circulatory system of the Gliese people does not require the participation of oxygen, so they naturally live longer

Then the group of biologists became fanatical, and began a lot of so-called speeches, what is the conversion of ATP, P, and ADP in the "energy nucleus...... Ichiro Yamamoto began to take the opportunity to call for the use of artificial blood and artificial respiratory systems to replace the current aerobic respiratory system, "The most intuitive benefit is that it can delay the rate of cell aging and achieve a higher lifespan"!

Anyway, Zhang Yuan understood, because of the lack of energy brought by anaerobic respiration, this group of Gliese people had to sleep for a long time.

Captain Zhao, who was sitting nearby, sighed: "So, it's not just the typhoon, but also this kind of dormancy that has evolved from the primitive, which makes them prefer a small and well-connected environment even more. At least consumes less stamina...... And it's safe and reliable, don't worry about burying yourself alive in the landslide! ”

Then there is no way, these human high-level can only be patient and continue to wait. Flash Dance

After about 12 days, the Gliese group finally regained consciousness, and the leader of the group, Gan Yaduo, said: "Thanks to the generosity of human civilization, this sleep is very comfortable. Please forgive us for our routines, I know that there are civilizations that are not dormant. I wonder what your routine is? ”

Of course, humans don't care about this little thing......

This belated diplomatic affair was quite grand, starting with a group of Gliese people led by several civilized diplomats to visit parts of the Earth Era, including the industrial area, the agricultural area, and part of the living area.

Of course, that's only part of the story.

In fact, this has some faint deterrent implications, to let the other party know something, but not to let the other party know too much. This state of half-understanding ambiguity is the most beneficial for human beings.

Next, the Gliese diplomats sat in the same room as the human elite and began face-to-face negotiations.

The leader, Gan Yador, was the first to ask, "First of all, I want to know the specific history of your civilization. ”

"Why did you think of coming to our galaxy from a distant solar system, more than 20 light-years away? From an economic point of view, there is nothing to be gained at all...... We don't have any special material resources here, could it be that the population exploded and the entire galaxy could not be inhabited? ”

This question is quite important and involves the ideological question of humanity.

After some deliberation, Captain Zhao replied: "Our home galaxy is not demographically exploding, but in a stable state where the population has stopped growing. ”

"The purpose of coming here is not to colonize and conquer, but mainly to explore and discover."

"The great men of our civilization believe that a civilization will spontaneously stagnate after it has developed to a certain extent. In order to avoid the recession caused by this stagnation, it is necessary to go through the isolation of space and time, and learn from the history of previous developments, in order to forge a new path......"

Captain Zhao briefly introduced the development ideas of the entire civilization, including the process of human exploration abroad, in fact, very early, human beings have launched probes into outer space, the famous "Voyager 1", "Voyager 2" and so on. These are very well documented.

Of course, there is no need to say much about the core of the historiography of the new civilization.

Whether the other party believes these contents or not is not within the scope of human consideration. There is no need to tell the big truth, but there is also no need to tell a complete lie.

After hearing this, the other party was stunned for a long time, I don't know why, after listening to the whole interstellar journey, he looked shocked, and even began to whisper a few words in the slang of his hometown.

After a few seconds, the other party reacted and praised this kind of thinking: "I see, no wonder you have built such a huge spaceship and left your home planet...... What an unimaginable project! How long did it take you to build this huge spaceship? ”

"About a hundred years."

If you count the preliminary preparations, it did take so much time. Of course, this is also the earth civilization of 3,000 years ago, and people don't know what is going on with the current earth civilization and whether such a spaceship can still be built.

The Gliese were once again speechless in amazement, for them, a short 100 years, may still be in the stage of growth and development......

At this time, Zhang Yuan asked solemnly: "Your Excellency Gan Yaduo, your civilization launched several nuclear bombs against us at the beginning, although there were no great casualties, it should also be counted as an attack. I guess you need to give an explanation for this attack. ”

The leader said without humility or arrogance: "I would like to remind you, sir, that this in itself is our territory. We do not know your ideology, nor do we know whether you have come to this system with good intentions or with bad intentions. ”

“…… If it were you, would you watch the other person become stronger? ”

Zhang Yuan was speechless for a moment, if he stood in the other party's position, this statement also made sense.

Immediately afterward, he added, "Well, we have already sent a large amount of electromagnetic waves to this galaxy beforehand...... Why didn't your civilization reply? We just think it's a no-nonsense place. ”

"With even a little bit of response, there's no way we're going to go to this planetary system. With so many planets in the universe, there's plenty to choose from. ”

The other party was silent, and discussed in a whisper for a while, feeling that this question was not very easy to answer. The other party has already spent three thousand years flying over, and there is no point in arguing here.

The Gliese man added: "But don't worry, General Davion, who pressed the nuclear button without authorization, has failed in his rebellion plan and has already committed suicide by swallowing a gun. The majority of our civilized population, on the whole, yearns for peace...... If you don't attack and have the intention of colonizing on a large scale. ”

"But we only allow you to choose one planet as a foothold, and we are not allowed to colonize more planets. That's our bottom line. ”

This time, the human side was silent for a moment. This concern of the other side is not unreasonable, if after a few hundred years, humans colonize all the remaining planets, the strength of both sides will change drastically......

But then again, even if you promise to colonize only one now, and you regret it later, what can the other party do?

Zhang Yuan didn't want to keep talking about this, so he changed the topic: "Your Excellency Gan Yaduo, can you introduce your civilization?" The history of 200,000 years of civilization is really long, and for our human civilization, it is only 10,000 years since there are written records. ”

This 10,000-year, even includes a 3,000-year journey to the stars.

Gan Yaduo pondered for a while and said, "This is natural, exchanging histories, and it is also the focus of our contact...... We are a civilization that celebrates art and mathematics......"

“…… We are even more shocked that you have been able to reach your current level in just 10,000 years. This is quite an amazing achievement! ”

……