"High-precision multi-joint pneumatic manipulator," Zhang Yi spread his hand and introduced to Wu Zong: "I have been researching this thing since I was in college, but I didn't expect that in this case, it was made of this pile of broken copper and iron, but fortunately, there are more things here in the Institute of Technology." ”

Speaking of this, Zhang Yi seemed a little helpless: "If this thing is in peacetime, it should be able to attract the attention of many people." ”

Wu Zong looked at Zhang Yi in surprise, and two words came to his mind - genius.

"It has a camera in the center of the machine that helps me do some high-precision welding and cutting. Zhang Yi said while gesturing.

"So you used it for so long," Wu Zong shook his head in disbelief: "Actually, you made a tool?"

"That's right," Zhang nodded: "The so-called 'if you want to do a good job, you must first sharpen your tools'." ”

With that, Zhang Yi walked to a cabinet in the depths of the room, opened the cabinet, took something from it, and brought it to Wu Zong.

It is a mechanical prosthetic arm painted black throughout, consisting of many iron bars and some electronic components, which looks rather rudimentary.

Zhang Yi put it on his left arm, and it could be seen that this thing was not light, Zhang Yi raised his arm with some effort, and turned around in front of Wu Zong: "Let me introduce to you, my professional research direction is mechanical prosthetics." ”

As he spoke, the fingers of his left hand moved slightly, touching the control element in the palm of his hand, and the mechanical arm made a sizzling sound, and then made the same movement as him.

This invention really impressed Wu Zong, it can be said that in this small room built by Zhang Yi, whether it is a mechanical arm or this prosthetic limb or that Wu Zong does not understand the host device, these technologies may be in today's world, looking at the world is also at the forefront of the world's scientific and technological level, I have to admit that Zhang Yi is indeed a unique mechanical genius, if it is not the outbreak of the apocalypse, he will definitely become a leader in national mechanical engineering research in time.

"Amazing. Wu Zong opened his mouth and exclaimed.

"Thank you very much. Zhang Yi controlled the mechanical arm and beckoned to Wu Zong: "Think about it?"

Although Wu Zong was not very willing to hit other people's self-confidence, he still had to interrupt Zhang Yi: "If I can, I would be very willing to accept this proposal, but it's a pity." ”

Paradoxical to say, although human beings belong to social animals, but in fact, the gap between people in ordinary times is quite large, perhaps only in the extreme situation of the last days, human beings will find their own kind precious, and trust between people will be quickly established, and now, Zhang Yi is obviously like this.

Wu Zong knew that Zhang Yi was well-intentioned, and this could be said to be Zhang Yi's most secret research base, and his willingness to share this place with himself showed that he had completely trusted himself in his heart.

However, Wu Zong noticed that the reason why Zhang Yi was able to control this somewhat rudimentary-looking robotic arm was entirely because his fingers could move and he could control the robotic arm by touching the control elements.

Wu Zong looked at his left arm, quite helpless - his current condition was almost no different from paralysis.

He stared at Zhang for a moment, then sighed.

"I don't think I can control this. ”

As he spoke, Wu Zong also let down his guard, rolled up the sleeve of his left arm, and at the same time took off the black leather gloves on his hand, revealing his forearm and left hand, which were wrapped in white bandages like withered branches.

Then he walked over to the table and sat down, placed his left arm on the table with his right hand, and unfastened the knot that was tied at his elbow.

The bandages were loosened in circles and fell off, and Sensen's white bones appeared in front of Zhang Yi like a ghost hand poking out of hell.

Zhang Yi had never seen the bones of a living person so closely, and he couldn't help but feel tight, and his heart was pounding.

When Wu Zong was 'corona' before, he once picked up Wu Zong's arm, and Zhang Yi felt that something was wrong at that time, but he never expected that Wu Zong's hand and arm were actually hanging on his elbow in this state, and this extremely visually impactful picture brought him not only fear, but also a kind of unbelievable.

You must know that it is impossible for a normal human arm to remain in this state on the human body, even if there is a connective tissue such as sinew and bones connecting the upper arm and lower arm, it will definitely show signs of necrosis and decay in less than twelve hours.

But Wu Zong's arm was as fresh as if it had been soaked in formalin liquid, and even the connective tissue at the joints still maintained its vivid pink color.

"You...... You ......" Zhang Yi didn't know what to say for a while, and he didn't know what to ask after 'you' several times.

"Caused by a small accident," Wu Zong said lightly, looking at this small arm with only bones left, and sighed: "It's really inconvenient, but my fingers can't move at all, and it seems that I can't use your mechanical arm." ”

Saying that, Wu Zong turned his gaze to Zhang Yi.

Zhang Yi didn't reply, but held his chin with one hand and frowned and carefully looked at Wu Zong's arm.

Strangely, Wu Zong did not see an expression of disappointment or frustration on his face, on the contrary, Zhang Yi's expression obviously implied another possibility.

Wu Zong dared to open his mouth to thank Zhang Yi, but Zhang Yi suddenly stretched out his hand holding his chin and pressed his thumb on the connective tissue at Wu Zong's joint.

Wu Zong obviously didn't expect Zhang Yi's hand, and a shock of pain came, which couldn't help but make Wu Zong gasp.

"Shhhhh

Wu Zong quickly withdrew his left arm of the white bone, and the sharp blade of the right wrist bone subconsciously stabbed out, and it landed on Zhang Yi's neck like lightning, and said angrily: "What do you want to do?"

"Oh, oh," Wu Zong's actions obviously startled Zhang Yiyi, he hurriedly raised his hand and took two steps back: "I just want to confirm if you still have a nervous reaction." ”

As he spoke, Zhang Yi glanced down at Wu Zong's right hand clamped around his neck, he had always been curious about where Wu Zong had taken out this dagger before.

But because the sharp blade of Wu Zong's wrist was protruding from under his wrist, Zhang Yi didn't see it too clearly this time, so he could only say tentatively: "The sleeve arrow is very good." ”

Wu Zong raised his eyebrows, stared at Zhang Yi's face for a few seconds, and saw that there was no other expression on his face except apology, so he slowly withdrew his sharp blade and warned, "I almost couldn't hold my hand." ”

"If you can't hold your hand, your arm may never come back. Seeing that Wu Zong had withdrawn, Zhang Yi raised his eyebrows and said.

He pointed to the mechanical prosthetic arm on his left glove and said with some smugness, "Actually, this is just my first successful robotic arm. ”

Wu Zong didn't understand what Zhang Yi was going to express, so he tilted his head and hugged his shoulders and waited for his next words.

"You know, failure is the mother of success, and this sentence is used to motivate people who do research," Zhang Yi said with his hands outstretched, his face radiant, and there was no loss of rejection: " This final design of the robotic arm was made after countless failures when I was eighteen years old, and I have designed many robotic arms since then, but I have never been able to avoid a problem, that is, humans need to think when controlling the robotic arm, external equipment can never achieve the consistency of our original arm and body, and the robotic arm will always be one step slower than us. ”

As he spoke, he raised his head: "Later I understood that the reason for this incongruity is ultimately because the external robotic arm is not subordinate to the neural control of our brain. ”

"So?" Wu Zong frowned.

"So what we need to overcome is not the reaction speed of the robotic arm," Zhang Yi is as arrogant and confident as Napoleon who conquered the European continent at the moment: "It's the communication barrier between the human brain nerves and the robotic arm sensors, in other words, if we can synchronize the robotic arm with the brain's nerve response, then all the problems will be solved." ”

Wu Zong admired Zhang Yi's thinking width, but he had to point out: "The human brain is known as the most complex processor in the world, and even the top medicine cannot change the structure of our brain. ”

"Of course I know," Zhang Yi did not stop because of Wu Zong's rebuttal, but was more leisurely and confident, as if he was happy to hear Wu Zong's question.

"The human brain is divided into two parts, the left and right brains, and it has a complex structure that is difficult to change," Zhang Yi raised his hand and gestured towards his head: "Then what if we don't use our own brains?"

"Don't use your own brain?" Wu Zong wondered.

"That's right, we don't use our own brains, we just rely on the bioelectric currents generated by our nerve reflexes. Zhang Yi nodded happily: "Although the human brain is precise, in fact, the reaction speed is far from being 'fast'."

"The time it takes for nerves to receive information from the outside world and transmit it to the brain, and then from the brain to the reaction organs is actually very slow, depending on age, the reaction speed of a normal human is 0.1-0.4 seconds, that is, 2.5-10 reactions per second," Zhang Yiyi looked at Wu Zong.

"Hmm," Wu Zong nodded, knowing something about it.

"Do you know the Summit in the United States?" asked Zhang Yi.

"The so-called world's No. 1 supercomputer?" Wu Zong had heard a little about this, and said casually.

"Do you know what its reaction rate is per second?" Zhang Yi was very happy that Wu Zong actually knew this, nodded and then asked.

Hearing this, Wu Zong was suddenly stunned, he seemed to know what Zhang Yi wanted to say, and he couldn't help but be shocked in his heart.

He shook his head honestly and replied, "I don't know." ”

Zhang Yi raised two fingers with the mechanical arm on his hand.

"Two hundred times?" Wu Zong asked tentatively.

Zhang Yi chuckled and shook his head.

"Two thousand?"

Zhang Yi still shook his head.

Wu Zong frowned, and simply guessed a big number: "Two million times?"

Zhang Yi still shook his head, and then finally spoke:

"Two billion times per second,"

After saying that, he repeated word by word: "I didn't stutter, two billion billions of times"

This astronomical figure undoubtedly shocked Wu Zong, although he was not good at it, but he still had imagination, but what made him feel a little frustrated was that this shocking computer was running at a rate that had completely exceeded his imagination.

Wu Zong turned his gaze to the transparent plexiglass box hanging on the wall, and said hesitantly: "So you want to ......"

"That's right," Zhang Yi snapped his fingers, "Since we can't transform our own brains, why don't we create a 'third brain' by ourselves in addition to our brains?"

With that, he smiled proudly.

Wu Zong couldn't tell for a while whether this person was a genius or a madman, he completely understood what Zhang Yi meant, and his solution was AI-artificial intelligence.

"Human nerves receive external signals very quickly, but the slow is our nerve conduction speed and brain processing speed, so we only need to communicate to the AI that controls the robotic arm when receiving external signals, so the AI will synthesize various information according to the current situation and respond within a few microseconds, which is much more efficient than the human brain. ”

As he spoke, Zhang Yi took two steps, stood behind the mechanical arm, and pointed to the pistol on Wu Zong's waist: "Hit me." ”

Wu Zong first froze for a moment, then reflected, frowned and shook his head: "This joke is not funny at all. ”

What are you kidding, Zhang Yi's theory did make Wu Zong agree, but he also knew how big the so-called Summit was, that behemoth occupied almost an entire floor of IBM, and he didn't think that this small chassis hanging on the wall could have such a high processing speed.

"It's obvious that I'm not the kind of person looking for death," Zhang Yi shrugged his shoulders and motioned to Wu Zong to relax: "Just shoot." ”

"Are you serious?" Wu Zong was a little incredulous: "You put a chair there, can we test it?"

"That's not shocking," Zhang Yi shook his head and rejected Wu Zong's proposal.

Lunatic.

Wu Zong made a definition in his heart.

Then he raised the gun and aimed it at Zhang Yi behind the mechanical arm: "This gun is not an ordinary small-caliber pistol, the bullet will rotate at high speed when it is discharged, and if you can't grasp the mechanical arm, the bullet will change direction, and the situation will be very complicated." ”

Of course, Wu Zong knew the power of this gun, and he mentioned before that it was very likely that ordinary small-caliber pistols could not penetrate the hard skulls of zombies, but when he shot Li Bing in an emergency at the highway entrance, this gun was able to penetrate the skulls of zombies at a distance of fifty meters, which was enough to prove that this .45 caliber Colt python was by no means a copycat.

As he spoke, Wu Zong set his eyes on the small chassis hanging on the wall.

Zhang nodded: "Meaningless." ”

Wu Zong saw that Zhang Yi had made up his mind, and he also made up his mind, opened the safety on the pistol, and looked at Zhang Yi: "One last time, have you thought about it?"

"I've thought about it. Zhang Yi nodded calmly.

Boom!

Wu Zong avoided Zhang Yi's head at the last second, pointed the muzzle of the gun slightly down at his leg, and pulled the trigger.

In the blink of an eye, the six robotic arms in front of Zhang Yi twisted into a twist-like shape in an instant, and Wu Zong didn't even see how they moved, as if they were replaced in an instant like two fixed images with no moving frames.

Then, Zhang Yi's voice rang out from behind the mechanical arm, and he said proudly, "Mr. Wu Zong, allow me to introduce you to my proudest friend, Echo. ”

As soon as Zhang Yi's words fell, he saw that the square box on the wall suddenly flashed a dreamy blue light, and then, a soft female voice came out from all sides of the room: "Nice to meet you, Mr. Wu Zong, I'm Echo." ”