The Wallfacer: Everyone wants to break through my wall.

"You're questioning our professionalism!"

If you hadn't failed in your efforts to keep the news under control and allowed it to leak, would this operation have failed?

"So you're questioning our professionalism?"

Undeterred, Newton retorted, saying that they hadn't slept for days to coordinate the assassination, and yet they still failed. Newton was so angry he wanted to grab a chair and smash it over King Arthur's head.

"Enough! Instead of wasting time talking nonsense, let's think of a way to fix this!"

"So what if Feng Taylor successfully returned to the United States? It just means the assassination will be more difficult. Does that mean we can't kill him?"

Qin Shi Huang wanted to persuade the two men to sit down, but unfortunately, his prestige was not enough, and the two men only slightly reduced their tense atmosphere.

King Arthur waited for Newton with displeasure, "Easier said than done. That's the American mainland. Ever since the news leaked out, the security at Feng Taylor's villa has been upgraded to a higher level."

"Tch, are you making excuses for your incompetence?" Newton retorted with a sneer.

"Say that again? I've been putting up with you for too long!"

His nerves, which had just relaxed, tightened again, and King Arthur slammed his fist on the table, pointing and cursing angrily.

Newton shrugged and continued with a cold laugh, "If you can't do it yourself, don't stubbornly insist on doing it. Let's use our method to break through Feng Taylor's barrier. Assassination is secondary."

“What’s the point of breaking through his plan? He has more than one plan!” King Arthur said.

Newton stared at King Arthur with the same look he gave someone an idiot.

"What's the rush? If his plan is really as we suspect, no one will be willing to protect him anymore!"

"Back then, killing him would have been an easy task, wouldn't it?"

……

On the way home, Lin Feng's tense nerves finally relaxed for once.

The presidential limousine looks no different from an ordinary car, but that's only in appearance; it is actually comparable to a heavy armored vehicle.

"Have those ETO members been caught?" Lin Feng asked.

The CIA agent shook his head regretfully, "We were too late; they had already escaped."

Actually, this is also Lin Feng's fault. If Lin Feng had informed the CIA about this directly on the plane, he would definitely have been able to arrest a large number of ETO members.

However, Lin Feng did this not without his own reasons. He was worried that the ETO organization would find out through Tomoko that it was Ryougu who had informed him.

He can't possibly be so ungrateful after being saved that he turns around and harms his savior, can he?

As for whether the secrets in the game would be known to Tomoko, Ryoko said no. Lin Feng didn't really understand this either, but thinking that Ryoko wouldn't go so far as to harm him, he didn't care.

"As expected of you, you were the first to notice something we hadn't, even from across the Pacific Ocean." The CIA agent looked at Lin Feng with admiration.

Although there are many capable CIA agents who can quell national crises and make decisive victories from afar, the Wallfacer is an outsider. He is not a professional agent and has never undergone training.

"It's just a simple shift in perspective. I was thinking about what I would do if I were an assassin. Plans are rigid, but people are flexible. Only by being adaptable can we prevent the enemy from understanding my thoughts. That's exactly what the Wallfacer does."

Lin Feng's perfunctory explanation was taken seriously by the CIA agents.

"It seems you are also extremely talented in counter-surveillance."

"Well, it's just counter-surveillance; it's nothing compared to you professionals."

Lin Feng coughed lightly, not wanting to continue the topic, as a leak would only cause more trouble.

Suddenly, the agent sitting in the front row turned around and said to Lin Feng.

"It's a message from the team; Davis wants to establish a video communication with you."

After obtaining Lin Feng's permission, a black screen was lowered through the gap in the car window, and Goring Davis's old face appeared on the screen.

Chapter 33 Biological Computers

"Thank God you're safe and sound."

Upon meeting him, Goring Davis seemed to breathe a sigh of relief.

"Thank you for your concern, Davis. Is there some problem with the AI ​​again? Or has there been some new breakthrough?"

Thinking that Goring Davis wouldn't contact him for no reason, Lin Feng asked.

“Ah no, I just wanted to check on your situation. This is the second assassination attempt, including the last one. The team is very worried about you,” Davis said.

Lin Feng waved his hand dismissively and said, "Don't worry, these are all minor issues for me. You know I've always been very knowledgeable."

"How's the algorithm problem for your AI project going on?"

Changing the subject, Lin Feng inquired about the current progress of intelligent AI.

Wouldn't ETO want him to develop intelligent AI? He's determined to do it anyway, and not only that, he's going to speed things up, just to infuriate those bastards who want to kill him!

Upon hearing Lin Feng mention this, Davis looked troubled.

"This... is still in the process of being resolved."

"Huh? Didn't I already find the human brain algorithm for you? Why hasn't it been solved yet?" Lin Feng asked with some dissatisfaction.

Seemingly sensing Lin Feng's dissatisfaction, Goring Davis quickly offered an explanation.

"Human algorithms are human algorithms and cannot be directly applied to intelligent AI. The human brain and computers are fundamentally different in structure. We can only say that human brain algorithms have great reference value, but that is all."

Lin Feng didn't understand this very well, but he thought, since it's an algorithm, could we create a computer that combines the human brain and computer structure?

In that case, wouldn't we be able to utilize more of the human brain's algorithmic capabilities and reduce time costs?

Lin Feng asked, "Then why not try to make parts of the human brain compatible with the structure of a computer? I remember reading in some magazines that the human brain is actually much more advanced than a computer, but humans just can't use it efficiently."

Davis explained with a wry smile, "Mr. Taylor, the content of third-rate magazines is not very credible. Putting aside the compatibility issues, the human brain is indeed much more advanced than current human computers, but to say that humans cannot use it efficiently is simply nonsense."

"It is precisely because humans make full use of their brains that they are able to engage in complex thinking, become aware of themselves and the world, and thus transcend the category of 'beasts' and enter the level of 'humans'."

Lin Feng nodded. After listening to Davis's words, he felt even more strongly that the human brain was a remarkable biological structure.

"Well, so, since the human brain is so advanced, why not try biomimetic technology? By simulating the structure of the human brain through mechanical hardware, we can obtain a biomimetic computer that is more efficient than current computers."

"I think this should greatly save us time."

Lin Feng's idea was simple: if it were a bionic human brain computer, it should be more compatible with human brain algorithms, and the effort and time required should be less.

“This…humans can’t do it,” Davis replied with a wry smile.

Lin Feng frowned and asked, "Is it an ethical issue? That's alright, I can handle it."

Davis shook his head and replied, "It's not an ethical issue, it has nothing to do with that. It's something that's physically impossible with the current level of human industrial technology."

Lin Feng stroked his chin, a thoughtful expression on his face.

"As far as I know, even a mobile phone SoC that is only the size of a fingernail and weighs only one unit can contain 150 billion transistors. The human brain weighs 1.3 kilograms and has only 860 billion neurons. Why can't we achieve biomimicry?"

While humans cannot currently modify protons or atoms to the extent that they can in microfabrication technology, they can achieve microfabrication at the nanometer level.

It is precisely because of the ability to microfabricate transistors of that size that we have today's high-tech smartphones, computers, and so on.

Davis explained, "Indeed, with current micro-industrial technology, it is not difficult to manufacture 5nm transistors. At the same size as the human brain neuron cell body, thousands or even tens of thousands of transistors can be packed in."

"But this isn't a matter of density; you have a deep misunderstanding of the human brain and computers."

"Computer operations are not based on imitating the human brain, but on logic gates constructed using AND, OR, and NOT."

"The basic structure of a chip is sparse on the top and dense on the bottom. The bottom layer consists of tightly packed transistors, while the top layer consists of densely packed wiring. The wiring of the transistors becomes sparser the higher the layer. This structure has not changed fundamentally since the advent of the first generation of electronic computers in 1946."

"The structure of a chip is very simple and repetitive, so the industrial circuit etching is done by machines."

"But the human brain is different; it's not just a simple collection of neurons."

"Each neuron has an average of one thousand dendrites, and these dendrites are covered with 1.5 dendritic spines. Each neuron connects to an average of 7000 other neurons of the same type. Some neurons that serve as junctions can even connect to 10 neurons at the same time."

"The total number of connections in this layout can reach 22.5 quadrillion. Sometimes, neurons can receive 100,000 inputs at the same time or generate 100,000 outputs at the same time, while transistors can only output 0 and 1."

“The synapse of a neuron is not a plug. At least 60 kinds of neurotransmitters are active in the space that is 20nm wide. Even the same neurotransmitter may show completely opposite results in different brain regions.”

"To make the two compatible, it would be equivalent to completely overturning the original spatial layout and underlying circuit logic of the electronic computer..."

Lin Feng understood what Davis was saying, but his head was spinning. He quickly stopped Davis from launching into a long-winded explanation.

"Alright, no need to explain further, I understand."

After briefly organizing his thoughts, he said to Davis, "But no matter what, computers need to improve. Otherwise, I think it's a bit risky to rely solely on algorithms to enable intelligent AI to perform complex tasks."

“You mean you also want to develop a biological computer?” Davis asked rhetorically.

Lin Feng nodded. "Yes, after developing intelligent AI, we will shift our focus to the research of biocomputers based on human brain biomimicry. Currently, our transistors can be arranged at a higher density than neurons, which shows that our microfabrication technology at the nanoscale is up to standard."

Strictly speaking, biological computers are not a technology developed to explore deeper microscopic phenomena.

This is something that actually exists on a macroscopic scale, namely the human brain.

It is completely impossible for the sophon to block this. If it utilizes the advanced structure of the human brain, it means that even if the fundamental principle of electronic computers has not changed, it can still take another step forward.

"Computer logic gates..."

Lin Feng didn't take it seriously, saying, "Logic gates? Aren't those things meant to be overturned? If everyone regards them as unchangeable truths and solidifies their thinking, who can make a breakthrough? How was the geocentric model overturned? How was the heliocentric model overturned? How did Columbus discover the New World? Since we have ready-made human brains to prove the feasibility of biological computers, what we lack is only brave warriors who dare to overcome this challenge."

"Davis, I think you are that kind of warrior." Lin Feng looked confidently at Davis on the other side of the screen.

"Oh...you think too highly of me."

Davis, being stared at like that by Lin Feng, had a fleeting illusion that he was a predator eyeing its prey.

Lin Feng held up a finger and shook it. "No, no, no, this isn't overestimating you. Your explanation just now gave me a completely new understanding of you. I've chosen you."

"At a time when we can no longer explore the microscopic level, the human brain-inspired biocomputer may be the only way out for computers."

Upon hearing this, Davis agreed without hesitation. He nodded slightly to Lin Feng with a burning gaze, a sense of mission welling up in his heart.

Davis: This is the mission entrusted to me by the Wallfacers! I will dedicate myself to the cause of all humanity! To help humanity break through the technological blockade imposed by the Trisolarans!

Lin Feng: Computers are such a headache, but now I've finally found the right person to get rid of this troublesome stuff.

Chapter 34 You've already broken through the wall!

In the dimly lit room, a white man with a full beard and dark circles under his eyes was laughing wildly, as if he had won the lottery jackpot.

"Hahaha, this is it! Found it! Finally found it! This is the key! My guess was right!"

The room was covered with various notes, which contained all the orders Lin Feng had given, as well as all the conversations except for those with Suzumiya in the Three-Body Problem game.