(The content of the previous chapter has been modified. Refresh to see the content. The chapter name needs to be modified after the holiday and after the editor returns to work. Please forgive me.)

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Carbon-14 dating, also known as "carbon 14 dating" or "radiocarbon dating (radioarbondating)", is a measurement that calculates the approximate age of a sample based on the degree of carbon 14 decay

Method, this principle is usually used to determine the age of paleontological fossils.

In layman's terms, living things replenish carbon-14 through respiration, which is constant while alive. When a certain plant or animal dies, the carbon-14 in its body begins to decay, which can be used to detect age.

The main raw material of banknotes is cotton pulp, sometimes mixed with part of hemp pulp, chemical wood pulp, etc. The components can be used for carbon-14 dating.

However, the biggest problem with this thing is that it is difficult to be accurate. The closer it is to modern times, the higher the accuracy.

When Wang Aihua discovered that the technology used in banknotes was under testing and had not yet been put into use, he was extremely shocked.

From a technical point of view, this is an unquestionably genuine note.

At first, he thought it was a sample banknote made by a central bank in another country. Although he was a little puzzled as to who would make such a thing and how Li Tongchen got it.

Until one day he accidentally remembered and did a carbon-14 test to find out exactly what year it was made.

The results he got shocked him extremely.

This banknote that looks a little old is actually brand new! Moreover, the carbon-14 value contained in it is constant and has not decayed at all no matter what the test!

"Lao Li, where did you get this banknote? Can you tell me?" Wang Aihua said solemnly.

Li Tongchen did not answer his words, but joked: "Your central bank still has a carbon-14 detection device? Can you trust something that is accurate for decades?"

Wang Aihua said seriously:

"It's not the equipment of the central bank. I asked an acquaintance at the Chinese Academy of Sciences to do the test. Their latest equipment can be accurate to one month! According to that buddy, the age of your banknote should be negative!"

As he spoke, he took out an envelope from his arms and carefully took the banknote out of it.

Li Tongchen didn't say anything. He took the banknote and looked at it carefully. He also watched the news about deep space hibernation technology on TV. He was very excited.

The banknotes were real, but not what they are today.

It was really born in 2025.

The year 2025 in the parallel universe.

This can also explain why the results of carbon-14 identification are like this.

And deep space dormancy technology also appeared in this world just like the plot in the Gray Tide apocalyptic mission.

The last bit of doubt about the commander-in-chief disappeared at this moment.

Li Tongchen watched the introduction about "deep space dormancy technology" on TV with excitement, and suddenly his eyes turned red and he shed tears.

A great era has come, a great era that will destroy the world, a great era that will turn the tide.

And he has become one of the participants, witnesses, and saviors of this great era.

A lofty sense of mission filled his heart, and a spontaneous pride made this sixty-year-old man seem to have regained the passion of the red era.

"How can you be so virtuous... How can you be so virtuous..." Li Tongchen murmured as he looked at the hundred-dollar bill in his hand, which was a testimony that belonged to his disciples.

Wang Aihua on the side saw Li Tongchen suddenly weeping as if he was possessed by a demon, muttering to himself, and couldn't help but panic:

"Lao Li! Lao Li, are you okay!? Why are you so stunned? Did something happen? Where did this come from?"

He also had some guesses about this banknote.

The central bank obviously won't make such a thing, and the criminal groups that make counterfeit banknotes generally don't have the strength.

Being able to create such realistic banknotes must be a national act.

Is it an economic war that the Eagle Country is secretly engaging in? Or is it that a country in Northeast Asia wants to make money by relying on counterfeit currency? Or is it the work of an international criminal group?

Li Tongchen wiped the corners of his eyes and said to Wang Aihua:

"Aihua, I made you laugh...I'm fine...I'm both worried and happy now..."

After saying that, he walked directly to the kitchen with the banknote, turned on the gas stove, lit the banknote, and burned it.

He has revealed his identity as a disciple in the virtual space, so he does not need this banknote as authentication of identity.

It would be troublesome to keep it.

Of course, the deeper meaning of the commander-in-chief handing them this banknote from 2025 is to dispel their doubts.

Wang Aihua said anxiously:

"Lao Li, why did you burn this money? Did you get into trouble? Alas... burn it, burn it..."

Then he looked at Li Tongchen and asked:

"What on earth can't you tell me? If you think I can't solve it, let's go find Jiadong. He is now the deputy commander of the military region. He is a very big official. Let's see who dares to mess around! Besides, you are a national treasure now! Who dares?

Touch you?"

Li Tongchen felt relieved as never before, smiled slightly, and said:

"Don't worry Aihua. I'm fine. I'm very safe. Please keep the money thing a secret for me and don't tell anyone... I'm happy today. Let's have a nice drink later."

"You have burned all the money, and they don't believe me when I tell them..." Wang Aihua rolled his eyes and said, but he still had great trust in this old classmate. This matter should have touched some secrets at the national level, and he also

Without asking again, "Let me tell you, I came all the way to see you today. I will not drink Moutai that is less than ten years old!"

"Hahaha, you wine bug! How long have you been thinking about my bottle of 20-year-old Maotai?" Li Tongchen cursed with a smile, turned and walked towards the bedroom...

…

Time flies so fast, and a month goes by in an instant.

In the small courtyard on the outskirts of Taicheng City, Shen Feng's consciousness tentacles separated from the cyberspace and showed a satisfied smile.

The energy of the Salvation Army is not trivial. Since the information about the Purification Society was revealed to players in the virtual space two days ago, a major purge against the Purification Society has begun these days.

Many members of the Purification Society who had been dormant for many years were uprooted, thrown into prison, or directly assassinated and executed.

This is already an open declaration of war against the Purification Society.

But this doesn't matter. After all, the other party has directly assassinated Shen Feng, so there is no point in continuing to hide it.

Over the past few days, nearly a thousand members of the Purification Society have been purged.

Brendan, the president of Rattlesnake Company, is safe and sound and is under surveillance under Shen Feng's order.

The Purification Society seemed to be dormant, never responding, and the assassination attempt on Shen Feng never appeared again.

What made him a little wary was that many members of the Purification Society who were found out and executed all chose to gouge out their own eyes, or stare at the executioner's face before death, and there was even a greedy look in their eyes.

Regarding this point, Shen Feng also reminded the members of the Salvation Army through the game system, asking them to turn their backs to those who were executed and not let them see their true faces.

Eyes seem to have a special meaning to the Purification Society.

Although he still hasn't figured out what the mystery is.

Although Shen Feng had a lot of leisure time during this period, he was not idle either.

Under his control, clusters of nanomachines were attached to the landing gear or cabin of airplanes, flying to various parts of the world, being sown like seeds, and gradually lurking.

The cluster of nanomachines that fell from the plane was gray-white in color, and its configuration reduced the refraction of sunlight. It looked like a big bird falling from the sky and was not conspicuous at all.

Even the radars of various countries can hardly detect it, let alone care about it.

These nanomachine clusters are like termites, they can devour them after landing, and then hide in dark places where they can receive signals, making them extremely hidden.

Although Shen Feng is temporarily operating in China, there is no guarantee that he may go out one day. By then, these lurking nanomachines clusters will play an extremely important role.

This is his life-saving magic weapon.

These days, the "Real Doomsday Game" wristband has not assigned him any new tasks. Shen Feng is also happy to relax, go to school and live as usual, and enjoy the days full of fireworks and warmth, and his heart has become much more peaceful.

On the other hand, Jingwei's humanoid robot, although it appeared for a few days in the name of some kind of transfer student, was a bit too eye-catching, so he took sick leave and stopped going to school.

Jingwei himself was messing around in the basement every day, not knowing what he was doing.

Shen Feng didn't bother to care.

This kind of peaceful life is still comfortable...

But what made him a little confused was that the "Real Doomsday Game" had been silent for a little too long this time, which was a little strange...

"Shen Feng, look, what does my appearance look like? Do I look realistic?" It was the weekend, and Shen Feng was lying on the sofa eating fruit when he heard Jingwei's voice.

Then I saw a beautiful mixed-race girl with a delicate appearance and a beautiful appearance. She opened the door and walked in. She was not wearing anything.

"Pfft..." Shen Feng spit out all the dragon fruit in his mouth and said quickly: "Get dressed! Get dressed! You are so lifelike!"

At this time, Jingwei is completely different from the previous nano-machine cluster mimicry. His skin looks as if it can tremble and is extremely elastic. His long hair is also real hair, without any metallic feeling.

Jingwei turned around happily and asked:

"Really? Can you still tell it's a robot? I use the latest type of pseudo-silica gel, which has temperature and touch. It's actually a kind of artificial skin that feels exactly like a human being. It also uses bionic mechanical eyes and Human hair, hehe, except that there is no hair, everything about her appearance is exactly the same as that of a real human girl."

Shen Feng picked up a large bath towel next to him and threw it to Jingwei and said:

"Sister, please can you put on some clothes?"

Jingwei wrapped himself in a bath towel, laughed loudly at Shen Feng, and said:

"Hahahaha, you little brother! Human beings are nothing more than that. I don't need any disasters at all, but my beauty can destroy human civilization!"

Shen Feng's face was full of black lines at this time, and he was speechless for this crazy artificial intelligence. This guy can still play...

Then he said with a serious face: "Sister, can you get me one too? Your skills are really awesome!"

Jingwei snorted coldly and said, "I've never heard of a male version of an inflatable doll. What's the use of having a real double? Are you using it to deceive a little girl's body? It's a bad idea!"

Shen Feng was speechless.

You're pretty good at taking on the role! But why don't you feel like you're not a pretty mixed-race transfer girl, but a bit like a neighborhood aunt?

While the two were chatting, Shen Feng's bracelet vibrated suddenly. He immediately turned around and saw a line of blood-red words suddenly appear:
Chapter completed!