Cyber Heroes

The reason why it was necessary to wait until Lu Xuanyu became a mature benchmark person before conducting the prosthetic test was mainly due to two factors.

One is the acquisition of neural signals.

Over time, some proteins will accumulate inside neurons, and with the metabolism of cell membranes, some metal-based proteins will be embedded into the cell membrane composed of phospholipids.

These gradually change the action potential properties of the neuron.

Of course, this is all subtle.

According to existing records, newborn baseline people will only feel that as time goes by, their nerve reflexes will become faster and faster, and their brains will turn faster and faster.

The performance of the human brain will be improved to a certain extent.

This change occurs only at the cellular level and hardly changes the structure of the neuronal network. Therefore, its impact on people's self-consciousness will not be too great.

At least at this stage, there is no evidence that it will have a significant impact on personality.

To use an inappropriate metaphor, it's like "speeding up" your brain.

And there is a huge benefit here - the electrical signal will become stronger and easier to be recorded by the instrument.

In addition, since metal-based organisms can use electric fields to maintain life reactions, the problem of "electrode stimulation causing inflammatory reactions in nervous tissue" can be basically avoided.

The difficulty of brain-computer interface signal input disappears.

And the other one is to "reduce the body's rejection reaction to the prosthetic body."

Humans develop immune responses to most things that are “non-self.” This is a matter of course.

No matter what foreign object enters the body, it will trigger an immune system response - not just germs or viruses, but larger foreign objects as well.

"Prosthetic bodies" are of course included.

This mechanism is likely used to deal with larger foreign objects such as parasites. Without this mechanism, humans may not have been able to evolve smoothly to this day.

But today, this kind of rejection of prosthetics has become a difficulty that must be faced on the road to prosthetics.

This difficulty is also divided into many aspects.

For example, mechanical damage. "Inflammatory reaction", that is, localized fever, redness and swelling that occurs after damage to the body, is often beneficial to the human body. It controls the reproduction of pathogens and allows immune cells to arrive quickly. However, it is not just pathogenic infection that can cause an inflammatory response. Any damage to cells can lead to an inflammatory response.

Including cases such as "foot sprain" or "muscle strain" that are not infected at all.

The prosthetic body and the physical body are not integrated, and it is difficult to "seamlessly connect". During exercise, they will generate friction or stress, cause sustained mechanical damage, and produce a sustained inflammatory response. Frantic immune cells attack all tissues at the junction.

On the other hand, macrophages will also actively encapsulate foreign bodies.

Traditional invasive implants can easily lose their original functions due to such reasons.

"——Of course, these problems will be solved or alleviated as your body changes." Florence introduced: "This is the convenience of the baseline person."

Lu Xuanyu's wife covered her chest: "I still feel weird. It's so dangerous...the prosthetic body..."

Lu Xuanyu was used to the "scientist's way of speaking" at this moment. He nodded and said, "That's how they like to talk. Just get used to it."

Florence continued: "In fact, traditional implants can already avoid this to a certain extent. For example, biocompatible materials."

"The human body - specifically the body of Homo sapiens - has a good affinity for titanium alloys. As a femoral head, skull repair material or an encapsulation shell for implantable radioactive source particles, it is not easy to cause inflammatory reactions. But titanium The properties of the alloy dictate that it cannot directly build complex systems in the body."

"However, it is different for baseline humans who are metal-based creatures. The biological affinity of most metals for baseline humans has reached the level of titanium alloys for homo sapiens. Lead, cadmium, chromium, nickel, antimony , tungsten and other metals have an even higher affinity. Engineers can directly use your cells and electronic components to build machinery in your body - of course, Mr. Voigt also has a project to study adjusting the human body's affinity to different metals. and sexual methods.”

"In addition, traditional prostheses need to contact the human body over a large area. When exerting force during exercise, it is difficult to completely avoid mechanical damage to the body at the joint. Therefore, existing prostheses are generally nested and non-implantable. If implanted, , can only be nailed directly to the bone. But IMHO, the human skeleton does not need to bear such additional tasks during the evolutionary stage, so it does not perform very well when faced with such a task."

"However, the prosthetics designed by our company are different..."

Florence clicked the button in her hand, and the content on the screen changed, showing several white parts that looked irregular in shape.

"Use my own osteoblasts to be cultured and induced in vitro, and then 3D printed into an implant that fits the human body. This 'artificial skeleton' is loose and porous, with signaling factors attached in the gaps, which can induce the body itself to form dense connective tissue - internal There are even signaling molecules that induce angiogenesis. And it becomes a 'platform'."

On the screen, the part was reversed. Under the bone shell, there are many mechanical structures.

"There will be metal wires that are friendly to the human body starting from here and connecting to your central nervous system."

"In addition, metal-based organisms can maintain cell activity with electric fields, so weak currents will not trigger inflammatory reactions in the nervous system. The input and output systems will be integrated on the surface of your brain - but not much at this stage."

"The above is the entire content of this briefing. Is there anything else you two don't understand that you would like to ask?"

Lu Xuanyu's wife raised her hand and said: "This... that... if the 'input problem' is solved... then if a bad person sends something... bad to the chip implanted in his brain... that... "

"Your concerns are valid, but please don't worry." Florence smiled: "First of all, we will not install a network card on the brain implant at this stage - it cannot directly receive wireless signals from the outside world. The signal of the prosthetic system itself will be processed through a wired connection. The safety barrier between the prosthetic body and the brain implant is personally handled by our boss. This security system is open to the supervisory authorities of various countries. Although there is For security reasons, the relevant departments in those countries will not release the source code to the public, but you can consult any country you think is credible."

"In addition, numerous 'white hat' personnel participated in testing this security system."

"If you are not confident about us, you can also use a system developed by a third party. As long as the principle of 'opening to regulatory agencies for inspection' is followed, we do not exclude third-party development."