“…… Therefore, it is clear that from the perspective of TF modification surgery and the use of prehistoric civilization equipment, it is very likely that contemporary humans were created by prehistoric civilizations according to their own genetic maps, and in addition, there is another view that modern humans are Homo erectus that were selected and modified at the genetic level by prehistoric humans, and in any case, the view that humans did not fully evolve from nature has been recognized by a considerable number of people. ”

-- The Alliance Times, scientific edition article, "Revisiting the Origin of Man."

***

"Actually, this matter is very complicated, so I'll find a way to explain it to you straightforwardly."

Ling Yu stood on the "commuter car", holding the railing with both hands, looking out the window into the darkness through the triangular glass, and Jiesi stood beside him, holding her hands in front of her chest, as if it had taken a while to sort out her words.

"At present, the mainstream view in the world generally believes that prehistoric civilization plays an extremely important role in the evolution of human beings, and probably, it is not an exaggeration to be important to the level of God.

"Of course, this idea was put forward 20 years ago," Jeunsy continues, "In the last golden age of mankind, at the beginning of the 21st century, before the energy crisis, countless works of art had already made predictions, so it was quite easy for humanity to accept this fact." ”

"I don't think it's just acceptance," Ling Yu's laughter came through the microphone, and the young man shrugged his shoulders, "The art world has generally recognized the existence of the 'New Renaissance'." ”

"Well, from 2154 to the present day, there is still a new interpretation of mythology, a re-study of ancient civilizations and a new cult, and the art world where retroism is rampant...... Speaking of which, I didn't find a set of hanfu from your clothes, I thought you were a very retro person. ”

It seems that because the atmosphere is a bit strict, Jiesi gently jokes.

"I'm past the age of playing cosplay in middle school...... Ling Yu subconsciously spit out his answer, but suddenly felt that the blow seemed to be a little bigger, and added, "Of course, this doesn't represent my opinion on traditional culture, it's just that compared to today's young people, I'm already a 'person in a suit'." ”

"It's only twenty-six years old, so you don't want to look like you're sixty-two," Jiesi raised her hand and patted Ling Yu on the shoulder, "To get back to business, based on the results of the Knights' research that can be revealed, and some of the things that happened to us, that's what I thought about. ”

Jesse took a breath and hesitated to speak.

"It's very likely that prehistoric civilizations used their own genetic fragments when they modified us, and even, with a bit of a bold conjecture, we may even be a hybrid descendant of prehistoric civilizations and Homo erectus."

"The idea that your 'gods' have mated with a group of high-ranking monkeys should not be acceptable to the Knights," Ling Yu understood the reason for Jiesi's hesitation and turned her head, "You're getting more and more heretical. ”

"Whether science or gods should be obeyed is a topic that the Knights have been debating since the day they were born, and most of the time this debate ends in a compromise between the two sides," Jesse raised her hand and gently wiped it on the helmet mask, "but now that it is the twenty-second century, even the most radical gods do not feel that religion can control everyone, especially a group of scientists." ”

"Well, it's good to see that the guardians of humanity still have this attitude." Ling Yu smiled.

"Getting back to the point, according to the attitude of Avina just now, it is obvious that prehistoric civilizations used a set of genetic key systems to determine the scope of authority of spaceships, in addition, there is another point to note, that is, many of the 'black technology' weapons of these prehistoric civilizations also use this system to determine the identity of the user."

"You mean, 'fit'?" Ling Yu looked at Jiesi, who was subconsciously holding her right arm, and the latter nodded slightly.

Fit, that is, the result of the genetic sequencing of most prehistoric civilization items on the user, in a sense, can be understood as a process of "user recognition", and only with the matching genetic sequence can the full performance of the weapon be brought into play.

"Speaking of which, it doesn't seem that the 'Enigma' has not been tested for 'fit', doesn't it?" Ling Yu subconsciously touched the pistol on his leg.

"There are no nanocircuits of prehistoric civilizations inside the mystery, and there is no need for this process." Jiesi shook her head to dispel Ling Yu's doubts, and then continued to state, "However, I think that the black lines on the back of your left hand must have read the genetic fragments in your body and found a match in them, so you were allowed to use the teleportation ability. ”

"That's the problem, why am I obviously recognized as the 'first mate', but I don't have the corresponding permission," Ling Yu looked at his left hand, he couldn't see the lines that should still be blue through the gloves, "Besides, if you don't recognize me, why can I start the generator and even ride this cable car?" ”

"Because genes are contaminated." Jeunse thoughtfully explained, "To put it simply, if your father is a prehistoric civilization and your mother is a human, then you only have half of the prehistoric civilization genes, and if your mother is still a human, then your children will only have a quarter of the prehistoric civilization genes. ”

"I understand this, just like the bloodline," Ling Yu nodded, turned around, and looked at Jiesi with his back against the railing, "Will it completely lose the genes of prehistoric civilization, 150,000 years have passed." ”

"'A foot of thrashing, half of a day, inexhaustible.'" Jesse shook her head.

“…… Speak human words. ”

"That'...... Ever heard of Zeno's Achilles and the tortoise's paradox? Jesse was stunned for a moment.

“…… No. ”

"In short, 1 is divisible by an infinite number of halves, and will only be infinitesimal and not zero, you see."

"Ha, you still speak human language." Ling Yu nodded unconsciously, "So I understand what you mean, even if 150,000 years have passed, there will still be a very small number of people who have the genes of prehistoric civilizations, so humans can open the 'ark' and use the tools and weapons of prehistoric civilizations that can sequence genes...... As well as becoming a TF. ”

"Yes, TF modification itself is a kind of genetic modification, and no matter which line of modification is the optimization of genes, guiding or non-guiding mutations." Jesse pushed her hands off, off the railing, and took half a circle in the small commuter car, "But there's a problem. ”

"What?" Ling Yu raised his eyebrows.

"That is, if the entire spaceship is managed with genetic code, then how to deal with the continuous transformation of itself by prehistoric civilizations," Jess walked to the metal chair next to him and sat down, and the 150,000-year-old chair squeaked quietly, "Moreover, mechanical transformation is also very popular, if there is a crew of a prehistoric civilization who transforms himself into a full-body robot, then how can he pass the genetic test?" ”

"Hmm......" Ling Yu nodded, not interrupting Jiesi, so the girl finally gave her own conclusion.

"I think it's a thing, the identification and gene sequencing are not exactly mapping 32 pairs of chromosomes, but the operator specifies several gene sequences for sequencing, and each authority is different - in layman's terms, let's say, if I specify that the transfer of this cable car needs to measure my No. 7 gene, then as long as I measure my No. 7 gene sequence, then my identity can be confirmed; But when you enter the bridge, you may have to measure my 7, 12, and 23 genes to make sure that there is no problem, so that's why you can teleport and start the generator, but you can't go to the bridge. ”

"Well, convincing reasoning," Ling Yu nodded in agreement, but he spread his hands anyway, "But how do we get these lost genes back?" ”

"Two methods, one of which can't be solved in a short time, and the other is what Avina mentioned to me, 'Please use the genetic permission card' - as I just said, genetic testing must be in contact with the body, at least a part of the body, so what about prehistoric humans equipped with mechanical bodies, it's very simple, store your own genetic information, and when you need it, you can swipe it like an access card."

"Wouldn't that be too dangerous? It means that someone else has your genetic information, and in this case, isn't it possible that once the captain's gene card is lost, the entire ship may be stolen? Ling Yu rubbed the lower part of the helmet and retorted with a frown.

"If it's just a low-level crew member, then there won't be too much risk," Jess shook her head, "I also noticed a detail, when you made a mistake, Avina didn't ask you to 'please use a genetic permission card', so, most likely, there is no genetic permission card at all for a position like the first mate, but you have to go through the whole body genetic test, and even the relevant code." ”

“…… Well, I don't have any problems for the time being, so what you mean is, let's go to the living area now and see if we can find the genetic permission card before we can move on to the next step of exploration, right? ”

Ling Yu summed it up, and then, he clearly felt that the speed of the train that had been moving at high speed had slowed down, and not far away, a light was also lit up one by one.

"Yes, that's it," Jess nodded, and stood up, and in a short time the car came to a steady stop on a wide, empty platform.

"By the way, I have something for you." The door opened, but Ling Yu suddenly remembered something, and followed Jiesi out of the train, "What do you mean when you just said that there is a solution that can't be solved in a short time." ”

"Well...... Jiesi raised her hand and tidied up the part connecting the helmet and the spacesuit, which seemed a little uncomfortable, "It's simple, just do genetic optimization for you." ”

“…… Are you serious? Ling Yu reached out to help her rub it on her neck, but the expression of surprise on her face was very clear.

"The alliance is completely a copycat of the Knights' TF transformation technology, with low efficiency and high scrap rate, and the knights of the Knights are all transformed from the training cabin of the 'Ark' infirmary, which is a genuine prehistoric civilization technology, and the level is naturally not the same." It took a lot of effort for Jiesi to finally adjust her helmet, turned her head to look at Ling Yu, and smiled slightly, "Boss, do you think you can't find an infirmary or a medical cabin on such a big spaceship?" ”

***

Ling Yu originally thought that the so-called living area was like a cabin in a science fiction movie, with a metal ceiling and corridors lined with hotel-like rooms one by one, but the scene in front of him was completely different.

The patchwork of metal modular rooms is not a tall building, and although there are not private gardens, balconies, public green spaces and small gardens are all over the floor - according to Jess, the necessity of this design is to minimize the psychological stress on the crew, so as not to suffer from a series of mental and physical illnesses that can come with a long interstellar voyage.

Of course, given that humans have never had experience with this, it is impossible to say what the disease is.

The living quarter, numbered 23, was not large, with only a street and a small garden - of course all the plants had disappeared, not even the dirt, leaving only a 100-square-meter hole, a metal floor, and faint traces of sprinkler irrigation.

"It's a chore to search this place, and there are probably hundreds of these small living quarters on the ship...... Is there anything good to build, prehistoric civilization expert? ”

Ling Yu stood in front of the garden with his gun in his hand, looking up at the sun-like lights on the zenith, just like a child standing on an empty road, and like a lost passerby in the steel forest.