This sentence really asked the deepest place in Chen Xu's heart!

Change history, will computers still be here? To be honest, Chen Xu used to be very worried, for fear of accidentally causing the computer to disappear - but this kind of thing has never happened, Chen Xu once thought, if he lost that piece of paper, then this computer will still appear?

Of course, just thinking about it occasionally, Chen Xu felt that he would not do such an idle thing.

On the screen, his grandson, Chen Fei pretended to cough and said something that made Chen Xu crazy: "That, grandpa, it's not that I look down on you." Well, with your current level of knowledge, it's hard for me to explain to you that it's an empty orbit, but I don't think you know much about the theory of relativity now other than that name, right? ”

Hearing this, Chen Xu had the urge to slap this kid hard! nnd, even if you don't know, you don't have to say it so directly, right?!

Chen Fei continued: "That, grandpa, don't whip me, hehe, I'll tell you the truth." To put it simply, the trajectory of time and space needs to follow a certain development route, which we call the 'protagonist route'. Grandpa, you should always know such a sentence, well, it's the ...... you used to scold me when I was a child", and then I saw Chen Fei straighten his face, and pointed to the side with a very awesome look: "You stinky boy, you always drag like this, do you think the earth won't turn when you leave you?!" ”

Chen Fei turned his head and then looked at the camera and said with a smile: "Actually, grandpa, this sentence is the 'protagonist route' that we have studied." Well, this sentence may be a little unfair to ordinary people. But that's the way it is, many people are just passers-by to the world. Well, this point is mainly based on the influence that his life can have. Like you, if you're just an ordinary student, your life's trajectory is nothing more than growing up, going to school, then working, getting married and having children. ”

"The people you know in your life are just ordinary people, and the wealth you have created in your life is very small to this world. What you do is so mundane that someone else will do it without you...... So such a person is called in the movie:

Tricksters. ”

Chen Xu rolled his eyes very simply, feeling that you mean that this kid means that we toiling people are all tricks? This is a must-think! You must know that the broad masses of peasants and the working class are the cornerstone of socialism!

Chen Fei smiled and said, "Grandpa, I know that you may not be able to accept my words, but in fact this is what it looks like." Some people have played a role in promoting the course of history that tens of thousands, hundreds of thousands, or hundreds of thousands, ordinary people, such as Newton and Einstein, and other academic giants, or Qin Shi Huang, Li Shimin, and other founding emperors, even Wu Sangui can play a role in determining the key course of history -- because if he does not become angry and angry, then history will inevitably develop according to a different trajectory. ”

What do you say...... That's right!

Chen Xu thought in his heart, it was indeed true that he said so, for example, if Xiang Yu won when Chu and Han fought for hegemony, then this is definitely not the situation now. If there was no god of war Ran Min when Wuhu was chaotic, then there are no Han people to say now...... History is really like this, sometimes one person can change the course of a history, this is indeed the sentence "the protagonist is determined".

But in the current world, who is the protagonist? Does it mean that killing this protagonist will cause chaos in time and space?

Grandson Chen Fei took a sip of water at this time and continued: "Grandpa, I actually want you to understand that the rules of time and space actually have loopholes to exploit. We've simulated this.,Hehe.,Otherwise, I won't send you the computer.,Otherwise, you can play casually.,Kill all of our juniors by you.,Then I'm not looking for death myself? ”

"Heh, grandpa, you must be thinking about what you did now, will it affect history, will it have any consequences?" Chen Fei's grinning grin is like peeling a dog's teeth - the so-called stripping of dog's teeth is to break the dog's lips open, and then reveal that cute little white teeth, which is this virtue when some people laugh very obscenely.

"Actually, grandpa, you don't have to worry, according to the space-time theory we studied, we discovered the space-time node system. In other words, from the time you receive the computer to the time I send it back to you, this period is a large node period. And because of this computer, in this time period, congratulations, you are the real protagonist. What you do is an important factor in the history of this period. ”

"The theory of the time node system has been proposed in the early 21st century. It means that anything can happen between two points. So grandpa, don't worry, theoretically speaking, the beginning has been decided, and the end is set down, that is, in my time, April 6, 2086, your grandson, well, it shouldn't be me, but it's still me, oops, it's so troublesome! Anyway, if your grandson sends this computer back to you on that day, then the time node is completed, and the cycle is determined. ”

And within this cycle, theoretically you can do anything! It won't have any impact on history! But grandpa, the premise of this node is that my grandson and I have to invent a time machine before April 6, 2086, and if this condition is not fulfilled, then it will also be wiped out! ”

Chen Xu was taken aback, time machine, is this thing invented when it is said to be invented?

However, he was quickly relieved, because Chen Fei bared his teeth and said with a smile: "But don't worry, grandpa, there are still 80 years, and according to your normal development, it is enough to invent a time machine." But if it doesn't work, I still have a trick. Hehe,There's a special permission in the computer's data.,Automatically open on New Year's Day in 2083.,Inside is all the data of the time machine.,Three years,It's enough to make a time machine.。 ”

Seeing this kid smiling so Yindang, Chen Xu was very sure that this guy must be his own species, good things don't learn, and the Yindang that comes out of his bones has learned ten out of ten!

But when he spoke like this, Chen Xu was relieved, which means that he is okay no matter how he makes trouble, he doesn't have to be tied down by doing things, he can't do this and that-in this case, why give him a computer from the future?!

Unfettered life...... Chen Xu thought of a lyric in the popular "College Student Study Room" two years ago: How beautiful, how beautiful!

There are some things that you can't give up once you get them, although Chen Xu has no ambition now, but he has gradually begun to get used to it, and he likes the feeling of this dual identity - SMMH, the god of the Internet, what a loud name? And even if it's not on the network, the benefits of this computer to himself are incomparably huge, if he really loses Xiaomin, it's better to let him die.

At this time, Chen Fei continued: "Because of the uncertain surname of the time machine, this information is prepared for the time node, and it is not intended to appear in this world in advance, so the information is sealed, of course, if Grandpa, your skills are enough to break through Xiao Min's defense, I can also see it in advance." But I still want to say that changing history is not a very good gimmick, and no one knows what serious consequences it will cause, so it is better to do less of this kind of thing. Even if you are in the current history, you are not completely unrestrained, oh, grandpa, don't be afraid, since you opened the first level of permission before 2010, it means that it is still very early, and when you open the second permission door, I will tell you what needs to be done next. For now, ha, you can enjoy your university life! ”

Chen Xu blows his beard angrily - of course, the premise is that he has to have a beard, do you think it's interesting to make such a permission? It's like constipation, how can you pull it all at once?!

Chen Fei said with a hippie smile: "Grandpa, of course, you can't patronize and play, let me remind you, the second permission is definitely not as simple as the first permission, and its password is not such a simple set of numbers that you can guess." To give you a hint, if you want to open the second level of permission, you must meet the following two conditions, first, pass the C-level assessment in the "Real Fighting" game in the virtual fantasy world, and second, the level of hacking technology must be able to read and crack the password of this 128-bit encryption algorithm. ”

Chen Xu was dizzy when he heard this, and almost scolded, but at this time Chen Fei hurriedly said: "Grandpa, don't blame me, this is what you left in your will." Well, you said it yourself, you are a lazy donkey, and you are too lazy to move without two whips...... You said it yourself! Regardless of my grandson's business! ”

Hearing this, Chen Xu rolled his eyes directly, his future self is really ruthless to his current self!

But it's right to think about it, the person who knows himself best must be himself! Chen Xu knows himself very well, knows his temper, and at the beginning because of his freshness, he was very diligent in learning things. Later, it sounded better because there were a lot of things, and I was busy with this and that, but it was hard to hear, hey, people are really lazy, and there is nothing new anymore, and I haven't exercised hard enough recently.

As for hacker knowledge, Chen Xu has been learning, although the goal is the world's No. 1 programmer, but that goal is too ethereal, more ethereal than Chen Xu at the same time to accept Guan Yi Zhanjing and Gao Xiaojie's three daughters, so Chen Xu is also a monk for a day to hit the clock, although he is not lazy and slippery, but he is not too attentive, occasionally encountering something, or being in a bad mood or something, if he doesn't want to watch it, he won't watch it - this attitude is much worse than the attitude of working hard for the college entrance examination in high school.

If you go along with this attitude, well, it's definitely okay to be a technical director in some big company, but if you want to be the world's number one programmer, like SMMH, hey, you may not have this opportunity in your lifetime.

So I know myself very well, and such a request for myself is actually very reasonable, and I urge myself to work hard.

Chen Xu was relieved when he thought about it, Yiduo didn't press down, and now he should really work hard, and he can't be so decadent anymore. But Chen Xu thought about it, no, I worked hard and worked hard to get such a permission, but what is this permission for?! Just to listen to the future grandson for a meal of nonsense? What's the point?

It's a pity that he can't ask questions here, Chen Xu can only listen to this stinky boy continue to nag there: "Grandpa, it's not that Xiaofei and I'm not righteous enough, well, there are some things, from my point of view, I can understand your arrangement in the future." In fact, there are some things that you should do for you to do, or rather, for the protagonist to do. If I had told you these things in advance, then I don't believe your life would have any meaning, would it? For example, I'm going to reveal who my grandmother is right now...... In case you don't know her yet, it's not fair to you to go to this woman on purpose for the future, right? ”

"Okay, that's all for now. Oh yes, look at my surname, hehe, you have always obtained the authority of the first layer, naturally there is a reward, instead of listening to Xiaofei I am nagging here, as for the question of rewards, this Xiaomin will help me answer it, guarantee to pull the wind! Hehe, the second authority has more good things! Let's say so first, by the way, grandpa must remember to give me more New Year's money in the future! ”

After saying this, the picture disappeared in a flash, and Chen Xu couldn't laugh or cry, his grandson ...... Forget it, no matter what this little bastard is, let's hurry up and see what I got this time, this thing is more real than New Year's money.

After the screen disappeared, Xiao Min's wonderful figure appeared on the screen, and looked at Chen Xu with a smile: "Hello, congratulations on obtaining the primary permission, you will get the following information and functions." 1. Turn on the special protection mode, which is not civilian, but is provided for special groups, and you can use this computer to carry out sonic attacks, so as to protect your security......"

"Sonic attack?"

"Yes. This is a function of this computer that is open to special groups, using a fixed frequency of infrasonic attacks, you can simulate the effect of a sonar gun, and you can use infrasound waves to attack the opponent and protect yourself. Infrasound is characterized by two parts: neurotypic attack and organotypic attack. The frequency of neural infrasound is equivalent to the alpha rhythm of the human brain, which is about 8-12 Hz. Using the corresponding infrasound waves to attack the enemy can produce resonance and have a certain impact on people's psychological consciousness. In the mild, it can cause discomfort, decreased concentration and emotional upset, which can lead to coma or nausea. In the worst case, it can make people delirious, shock and fainting, and lose the ability to think.

The frequency of organ-type infrasound waves is similar to the natural frequency of human internal organs, about 4-18Hz, when using this kind of sound wave to attack people, it can also cause the resonance of human internal organs, such as muscle spasm and convulsions of the whole body, and blood vessels burst and internal organ damage, which can cause death in an extreme time. ”

"Hiss......" Chen Xu really gasped directly at this time, this is too strong, right?!

According to Xiao Min's explanation, Chen Xu gradually understood the role of this sonic weapon.

To put it simply, there are three types of sonic attacks, in addition to the above two, there is also a subconscious attack - the first two are infrasound waves that cause resonance, and the third is to affect the subconscious of the brain, in contrast, the third is the least harmful, but the effect is also the slowest.

The study of sonic weapons has actually been around for a long time. Sonar systems were born a hundred years ago, and they are used for a wide range of purposes, such as detecting enemy ships. The gradual unveiling of the role of infrasound and ultrasound has also allowed human beings to begin to use it in all aspects. For example, the current ultrasonic lithotripsy uses the energy and concussion ability of ultrasound to crush gallstones in the human body, without surgery or surgery, and solves the problem at one time.

Since it can be used to save people, this sound wave can also be used to kill people!

The biggest advantage of infrasonic weapons is that, first, infrasonic waves travel fast, the speed of sound in the air is about 340 meters per second, and infrasonic waves are inaudible to ordinary people - of course, wild Ultraman has to say otherwise, so this weapon can be regarded as a magic weapon to kill people invisibly; Second, the infrasonic force is very far away and the penetration is stronger, even if it is separated by tens of meters of reinforced concrete!

This is simply a must-have magic weapon for home travel, murder and arson!

Of course, infrasonic weapons also have downsides.

In fact, with the science and technology of the early 21st century, it can be said with certainty that all countries have mastered infrasonic weapons -- it is not difficult to manufacture such weapons, or in other words, the biggest point of these weapons being made now is that they are not at all soft to kill the enemy! But the biggest drawback is that it is not soft to kill your own people...... In 1986, Gabreo, a French scientist known as the father of sonic weapons, leaked in his experiments - an inadvertent leak of infrasonic waves took the names of 30 civilians in a matter of seconds - and all of them died of ruptured cerebral blood vessels. And in 2001, Gabrio invented the "Infrasonic Intelligent Warrior" - a robot carrying an infrasonic weapon that could instantly kill all enemies within a radius of 10 kilometers if he wanted to, no matter where they were hiding, even in a submarine tank!

Therefore, scientists are now working on how to control the damage of sonic weapons, so that this weapon can replace guns as a new type of combat weapon, which will not accidentally injure oneself and civilians, and can control the power -- this "non-lethal sonic weapon" has finally been realized in the future -- in fact, very early on, the "electronic mosquito coil" used by Chen Xu used this infrasound wave to drive away mosquitoes, which is similar to the principle of action of sonic weapons.

Infrasonic weapons require enough energy and special hardware to output sound waves of a fixed frequency, and they also need to use special methods to integrate sound waves into a beam - like the kind of sound transmission in martial arts novels, that is, several people stand facing each other, but what one person says is only ringing in the ears of the designated person, and the others are standing nearby, but they can't hear it at all.

Future scientists finally invented controllable sonic weapons according to the idea of transmitting sound into secrets, and the conditions of this weapon, Xiao Min's special computer can be fully completed, so in the future, many agents or special groups, most of the watches carried by them have the effect of this sonic weapon, which is safe and convenient, and has strong lethality.

Of course, there must be restrictions on this kind of weapon, just like firearms, which need to be controlled, and the power of this weapon is kept in a very small state by default, that is, it will cause damage to the enemy but will not be fatal, and the penetration is also very small, so you don't have to worry about penetrating a person and continuing to string forward, and then all the people in this straight line of more than ten kilometers like a string of sugar gourds will die.

This thing can really be regarded as a big killer.

However, Chen Xu scratched his head a little after being excited for a while, it is undeniable that this thing is indeed very good and useful...... But the question is, who does this usefulness have to look at? It's good for the police uncle to catch the bad guys, but it's for Chen Xu...... Who is he messing with?

He is a student, he has no enemies in reality, and now his ability is not bad, at least now Chen Xu can also make a few moves against Shangnangong Lan, and ordinary people come to five or six to deliver food, so this thing doesn't mean much to him.

But it's a good thing, in case you really encounter danger in the future, maybe this is a lifesaver! Chen Xu thought like this, and felt that this thing was not so useless, so he nodded with satisfaction, and then looked at what other good things there were.

Xiao Min went on to say: "Reward two, the manufacturing drawings of magnetic energy multi-purpose heightening shoes, you can make this favorite shoe of the post-80s generation in the 21st century by yourself." ”

(To be continued)