Cyber Heroes

Regarding "why Yuki is so excited", Xiangshan certainly knows it well.

The child was so happy because Xiang Shan promised to teach him some skills.

Xiang Shan admitted that exposing his identity was somewhat risky. He even considered the worst case scenario - that is, the word "chivalry" has been completely distorted in this era, and chivalry has long lost its reputation. In this case, he even needs to knock Yuki out and leave town.

But he really lacks common sense about this strange era. He really needs someone from this era to help him. In addition, some modifications involving the brain cannot be completed by himself. If he wants to regain his martial arts skills, he needs a helper.

Yuki is the only person Xiangshan can trust at the moment. Xiangshan has been with him for several months, and he knows that this child is kind-hearted and smart. He is also curious enough to want to understand the world.

From Xiangshan's point of view, this child has the value of being trained as an assistant or even an apprentice.

Regarding the matter of revealing his identity, Xiang Shan also went through certain considerations.

After weighing the risks and benefits, Xiang Shan finally chose to confess.

A few minutes ago, Xiangshan saw with his own eyes the expression on Yuki's face, from shock to fear to relief.

"I see Xiangshan that you are angry about the treatment of the workers." Yuki said: "I believe you are a good person and a good knight."

Later, Xiangshan asked Yuki where he could buy parts and borrow a set of special tools. Youki took Xiangshan to Dr. Schultz.

"Well, most of the parts you need are very common. I have most of them here." Dr. Schultz glanced at Xiangshan's list and nodded: "However, some of them are quite expensive. ,In this case……"

"Don't worry, I have a way to pay." Xiang Shan took out a spine from the package he carried. This spine has a silvery-gray luster and is heavy, unlike the accumulation of calcium and protein. Its density is close to that of metal.

This is what Will Grande Doug left behind, a spine.

Humans do develop spines like this. This is what Xiangshan just recalled. In the 21st century, humans have made great progress in molecular biology and genetic engineering. Humans can use genetic modification to allow their bodies to synthesize proteins containing metal elements.

If a person uses the modified virus to graft a new gene fragment into his body, and insists on taking anti-immune drugs for a period of time to suppress the rejection reaction between the original body and the new protein, then the protein composed of The cells will gradually replace the original cells, eventually allowing people to evolve from "Homo sapiens" into a brand new creature.

This new species of Homo transformed from Homo sapiens has stronger adaptability to cybernetic prosthetics. The metal-based proteins in his body will form natural wires and resistors. The threshold for "brain-computer interface" will be infinitely lowered. At the same time, the ability of cells to resist mechanical damage will rise sharply. Hardware implanted in the human body will no longer cause damage to surrounding cells. Necrosis.

——This may also be the reason why Xiangshan can wake up again after being in a coma for countless years.

Starting from a certain point in time, the process of human prosthetics started running like a wild horse running wild.

Xiangshan no longer remembers any more details. But he also remembers that in his day, the spine was still a critical thing. The metal-based spine is a natural data transmission line with a very large channel capacity and is naturally compatible with nerve signals without the need for further adjustments. Many cybernetic modifications will retain the brain, cerebellum, medulla oblongata, and spine.

And now, Will Grand Dogg's warrior prosthetic body still uses this technology.

Xiangshan remembered that Yuki’s mother, Yulia, had sold spines. This thing is still very valuable today.

Dr. Schultz was startled: "Are you going to sell this thing?" He looked at Xiang Shan's stick figure-like prosthetic body: "You don't plan to use it yourself?"

Xiang Shan pretended to be indifferent and said: "There is no medicine."

"medicine?"

"It's the kind... what is needed when replacing a spine... what is that?" Xiang Shan asked tentatively.

After receiving metal-based gene fragments, the cells' ability to resist apoptosis increases, and all the receptors on the original cell membrane surface are rewritten, making it almost impossible for viruses native to the earth to harm new humans. In addition, the increase in body temperature also makes humans immune to most old germs, fungi, and parasites. But this does not mean that people do not have rejection reactions. If you use someone else's spine, your body will still reject it.

——Of course, this is what Xiangshan remembers from that era.

Xiangshan didn't know how far the earth's technology had advanced after he fell into coma. Yuki didn't know much about this kind of professional issue, so he could only test Dr. Schultz.

Dr. Schultz nodded: "It's true... the reverse messenger soaking agent is really difficult to use."

He didn't doubt it too much. After all, the average person will never need to replace their spine in their lifetime.

"Yes, yes, reverse messenger soaking agent!" Xiang Shan nodded, pretending to be suddenly enlightened - fortunately, he is now shameless and skinless, and even the sound generator is a cheap thing that lacks emotion and does not require acting skills.

——Counter messenger soaking agent, a word I have never heard of at all... Messenger, is it related to messenger RNA?

Xiangshan himself is an engineer. But he vaguely remembered that he had a friend who was engaged in biology and talked to him about related topics.

——Central dogma, DNA records genetic information into messenger RNA, and then the messenger RNA is transcribed into a long polypeptide chain. The polypeptide chain is folded by the organelle and becomes a protein...reverse transcriptase? No, probably not...

——Can this process be further reversed?

It seems that technology is still improving. Xiang Shan judged this. In his era, except for special cases such as prions, other life activities basically followed the "central dogma", the expression process of biological genetic information. There is almost no way you can reverse this kind of life activity in the cells of an advanced organism.

"But..." Dr. Schultz turned the list to the bottom and looked at it: "I really don't have these parts here... This kind of specifications shouldn't be applied to prostheses, right? And the last one, the thickness is not Iron sheets that are more than one millimeter and less than three centimeters wide? If you want to find these things, it’s best to go to the scrap parts recycling bin at the east end of town.”

Xiangshan explained: "This is used to make some... auxiliary tools."

"Judging from this list, you shouldn't have received professional training, right?" Dr. Schultz shook his head: "Many of your specifications are not standard. I don't know what kind of prosthesis you plan to make, but... A warrior's professional prosthetic body is, after all, a rare thing. I don't want you to waste hard-earned good parts. So, do you want to go online and look at the design drawings?"

"Online?" Xiang Shan was startled. He remembers that things like the Internet disappeared because of the war. He really didn't expect that this seemingly shabby world would actually have such a thing as an Internet signal.

"Our town is relatively poor and there is no public network signal. However, I have set up a private one at home. If you sit in the middle of the living room, you should be able to receive it. I can give you a one-time access password..."

After saying this, he paused: "However, you'd better not download anything casually, and don't open the preview of the holographic signal..."

Xiangshan was indeed somewhat moved.

But he finally shook his head: "No, doctor, thank you for your kindness. The Internet must be very expensive, and I can't take advantage of you in vain."

"That spine has already made me a lot of money." Dr. Schultz patted Xiang Shan on the shoulder: "Besides, you also saved my town. I really have to thank you."

"No, I'm not used to receiving favors from others for no reason. If I need it, I will borrow your net again." Xiangshan still rejected Dr. Schultz's kindness.

Dr. Schultz declined the invitation. He quickly found all the parts Xiangshan needed and lent him a set of professional biological tissue surgery tools.

After confirming that he was heading further toward the mountain, Schultz went upstairs.

The mayor was in a room upstairs.

"Uncle, he is not online." Schulz looked strange: "Why do you want me to remember to invite him to the Internet?"

Dr. Schultz really didn't understand his uncle's request. However, he did it anyway. My uncle is the most knowledgeable person in this town. When he was young, he traveled extensively and knew some secrets.

"Dresden..." the mayor called Schulz's name: "Turn off the Internet first."

Schultz nodded and gave instructions directly through the brain-computer interface to disconnect the home network.

Anyway, this is how he usually saves network fees.

"You know? Dresden." The mayor seemed to be recalling the past: "When I was young, I offended an official and had to move away."

Schultz nodded: "Indeed, but you were lucky, the official died later..."

"He was assassinated by a knight." The mayor was silent for a moment and said, "I called that knight..."

"What?" Schultz screamed.

Colluding with the knights is a serious crime against Dyson's principles!

"I didn't collude with the knights. I just happened to meet a knight in the wilderness and asked for help." The mayor snorted: "Your grandfather, my father once told me that thugs like knights, It's actually very easy to use. As long as you show humility to them, they won't make things difficult for you. On the contrary, they will assassinate those officials they think are guilty for some evil sense of honor - they are actually very easy to use. , is our very important survival wisdom.”

Schultz exclaimed: "You never told me..."

"That was before...the fewer people who know this secret, the better." The mayor was silent for a moment: "But now, the situation is different. The tax collector only accepted eighteen babies, which is lower than the standard ratio. He wanted We don't know how to deal with us. We may have to rely on the power of the 'Xia Ke'."

Schultz understood immediately: "You mean... Shan is a knight?"

"I don't know what Mr. Shan was doing before he lost his memory, but I know that all knights have a habit. They will not connect to the Internet casually. I spent a few days with a knight briefly. Before they go online, they must Make preparations for a long time." The mayor whispered: "I don't know if Mr. Shan is a knight. However, he can indeed fight - especially after obtaining the warrior prosthetic body."