A master of internal strength who has Saussure's divine domain and an ordinary benchmark person whose brain has not undergone a second transformation are completely two different concepts.

For Saussure's accomplished people, the "mathematics" and "programming language" in his eyes are completely different from the "mathematics" and "programming language" in the eyes of natural people. Because Saussure's domain is not only a "linguistic center", but also a nervous system that integrates a large number of logical thinking functions.

Just like the temporal lobe of humans, it can easily identify, summarize, and process hundreds of feature "axes" of human faces, and store, analyze, and reconstruct countless human faces in a high-dimensional feature space.

But this does not require a human being to deliberately calculate the geometry of Hilbert space in a few hundred dimensions.

For Saussure's accomplished masters, some advanced mathematics and programming, like "1+1", can be completed subconsciously.

And it also includes a change - for internal masters, "QR code" or even "barcode" is something that can be read.

In Xiang Shan's eyes, the symbol carved by Cui Ji was like an unfamiliar Chinese character composed of hundreds of strokes at random—it must be a character, but it had no meaning in the public sphere.

Even if you scan and analyze, you won't get results. Because that's what a meaningless QR code is.

And those who know it will be able to read it.

It's as if there is a correct and meaningful Chinese character mixed in with dozens of obviously meaningless self-made Chinese characters. It's so conspicuous to people who know it.

Yuki was a little worried: "Don't you know that woman Debora?" ”

Cui Ji shook his head: "She only knows part of it, but she doesn't know it completely." It was the kind she didn't recognize. ”

As he spoke, several people had already walked into the building.

Although the "Songying Building" is the core building of Songying City, where the castle lord's official residence is located, there is not a decent gate on the first floor, but a door the size of a unit building. Dozens of doors are evenly arranged at the entrance of the first floor of the building, directly connected to the staircase.

The vast majority of residential buildings are adjacent to the façade. This part of the residential area is also the only one that is lit and ventilated. Among other things, the mere fact that "solar panels can be placed" is enough for residents to compete for places.

And the area near the inside, are enclosed houses.

When Master Zhao opened these floors, he didn't make partitions. The partitions inside were all added by the residents themselves. As long as the original structure of the building is not damaged, there are no restrictions on what residents can do in it.

The air was humid and heavy, with a faint stench. As soon as the little one entered the building, his little face wrinkled, and his mouth was deflated, as if he was about to cry.

Several people climbed the stairs. Surveillance is present in the stairwell. Since several people didn't want to expose their martial arts for the time being, they didn't use their skills to rush forward. There are also many people living in the stairwell. Some people forced a small shed in the cubicle, and some simply sat on the steps without a bed.

Xiang Shan's prosthetic leg also has a relatively sensitive sense of touch. He felt that the ground was inexplicably slippery and greasy.

Soon, several people came to the top of the tenth floor.

At this time, Cui Ji said in the team channel: [Senior Brother Yuki, I forgot to remind you just now. You have to remember, wait a minute, don't just stare outside without the permission of your seniors, understand? 】

You basically wanted to look out of the stairwell window, but quickly withdrew his gaze and asked in the channel, "Why?" 】

[There's a problem with the map.] Xiang Shan responded: [The location of the five buildings, as well as the city's main road, the anti-aircraft electromagnetic cannon array on the ground, if you add one piece, it will be like a few QR codes. As long as you see one or a few of them, you may be activated by some kind of backdoor and then watched closely. 】

Cui Ji to: [The predecessors expected to be the same. 】

All prosthetics in this world have a back door.

Xiang Shan said again: [This method is of no meaning to people who have achieved internal success. I'm afraid it's a self-taught young man? Or is it a rebel force that has been secretly assembled without knowing the secrets? As long as you stand on a high altitude and observe the terrain, or inspect the map, a backdoor will be activated, and then resources will be allocated to focus on monitoring? 】

[If you take into account the shadows of the five buildings...... I'm afraid that there is more than one backdoor corresponding to this method. And according to the activated back door, those official eagle dogs can still determine when someone is really observing the terrain and from which perspective? 】

Yuki was shocked: [How many people do you need to ...... this]

[People? Don't be funny. Xiang Shandao: [This process can be solved by weak artificial intelligence. Most of the process is automated. The strong have such resources. 】

Yuki was stunned: [But won't there be a lot of accidental injuries here? If someone accidentally glances outside......]

Xiang Shan did not speak.

Because the strong have such resources. Even if you mistakenly check a hundred, it is enough to catch only one target.

A person who organizes a resistance without looking at a map poses no threat - they may not know how to "aim the point of the knife".

But most of the people who look at the map will be caught.

Cui Ji patted Yuki's shoulder: [Senior Brother Yuki, look at the surrounding underground. 】

Yuki looked down. This is the thirteenth floor, which is much more spacious than the ten floors just now, and it is not as crowded as before.

This is because it takes a lot of time and energy to go upstairs and downstairs every day to live here.

Most of the people who live here are poor people and may not be able to afford this kind of thing.

Yuki saw that the people were all sitting on the steps with expressionless faces (of course, this part is only for the establishment of "keeping the cheeks"), and some of them were leaning against the wall [mainly the people whose muscles near the spine had not been replaced by prosthetics], immersed in their own world.

[Due to its proximity to the base of the Gene Bank Defense, there is a common network.] It's kind of convenient monitoring, and they can also use a little bit of functionality. Don't look at them sitting here and describing the withered, but the spirit may be communicating with people from other planets and entertaining themselves. 】

Some of them glanced up slightly as Xiang Shan and the group walked by, but quickly lowered their heads again indifferently.

[Most people don't really care about what's going on outside the window.] Cui Ji said; [The data may be far less than you think.] 】

The group continued to walk up, and soon came to about the thirtieth floor.

Not many people will sit in the stairwells here anymore. At the end of the day, people with a lower degree of prosthetics are unlikely to spend as much effort to climb such a tall building, while people with a higher degree of prosthetics do not have that much desire for housing.

Instead, garbage and feces appear in the stairwell.

In the stairwell, Yuki looked curiously towards the living quarters of the floor residents. The inhabitants of these floors do not seem to have partitions made of materials such as stone, earth, and metal as they do on the twentieth floor—the higher the floors, the higher the cost of transporting building materials. They seem to be using metal wires, plastic sheets, and things like that.

At higher levels, the partitions become plastic curtains hung with wires. When Yuki looked inside the door, he noticed that the residential area also had a pair of eyes staring at the stairwell. Yuki was startled and withdrew her gaze.

Further on, there are the inhabitants lying on the ground in a mess.

Originally, some people lived here just to have a place to store their personal possessions. For most people, this is not an easy thing to do.

If you want to live here, you have to face the problem of "inconvenience". Just going upstairs and downstairs every day can consume a lot of energy, so how can you work well?

The people who live here are basically some people with a low transformation rate who are desperate. Either they have offended someone, or something has happened to them, so they can only come and live here.

Xiang Shan can understand a little from the memory of the old hammer. These people only go out once in a few days. Go out and work for a few days, then come back with a lot of supplies, walk in the stairwell for at least a day, then find a random floor to fool around for seven or eight days, and then go out again, and the cycle repeats.

They are the people on the very edge of the city.

In this area, the stairwell is almost littered with garbage and feces.

But after this area, the road is much easier.

At least the stench faded all of a sudden.

Organic residues on the ground accumulate in the corners of the walls, even forming the appearance of soil. Xiangshan did see the fungus on it.

Yuki's mind was still immersed in the matter of "looking at the map", but he coldly bumped into his master's back.

[Master, how do you ......]

At this time, Cui Ji suddenly stopped in front of him and said, "This, you'd better be mentally prepared to watch ......"

Yuki poked his head out curiously, and found a ...... in front of him

How so? A mass of organic soil that "roughly has the outline of a human body".

The fungus had grown and died several times, and moss—no, some kind of camouflage-like lichen mixed with black and green—filled the area.

Sunlight fell through the windows of the stairwell and shone on the lump of dirt. A slender plant grows on it and even bears seeds. Yuki had never seen anything like it. He really didn't know that plants actually gave birth to such pure white ...... Fluffy dumplings?

Huang Couplelight said: "This used to be a person......

No one knows why this person with a very low rate of transformation came to this place and died here.

Is it hunted down? Or did you have to go into hiding for some reason?

Or is it that the body has been irreversibly damaged, so you came to such a place to die?

Of course, all this is no longer important.

Xiang Shan clasped his hands together. The palm wind is agitated. Blow the seeds off that plant.

Dandelion seeds flutter in the sun.

Xiang Shan said: "Yuki...... I knew it. Sure enough, metal-based species cannot defeat Earth's native species in all areas of the biosphere. You see, there are indeed green plants in the world. ”