"That, that, that......" I heard her say categorically, and immediately lost her bearings, pointing to the piece of paper in Tian Singer and stammering.

Tian Ge walked over, looked me in the eye and said, "Senior brother, do you have confidence in yourself?" ”

Where does this begin? I muttered, "That depends on what you're doing......

"Adventure!" Tian Ge said.

"It depends on what you're taking...... "I think it's weird."

She tilted her head and smiled and said, "Didn't you say just now that it was better to die, since you are not afraid of death, I think other things are even more difficult for you!" ”

It's not good to be courteous! I immediately said vigilantly, "Don't be poor, just say it!" What risk do you want me to take? ”

But in the past two days, I have been a little worried about this little girl, but now I suddenly have a smile on my face, which must be a sign of good things.

"We want you to turn back time and go back in time!" She replied bluntly.

It's really been a lot of time I've heard and thought about this statement countless times, and I feel a little commonplace, but this time when it comes out of her mouth, I can't help but be taken aback!

"This is an article that my dad translated from a foreign academic journal, talking about a hypothetical thinking of new physics." Tian Ge raised the piece of paper in his hand and said.

I have a hunch that Tian Ge is going to start saying things I don't understand!

She saw my empty eyes, and immediately changed her words and asked, "Senior brother knows the concept of dimensions, doesn't he?" ”

"Well, what is one-dimensional to four-dimensional, it's just an ear......" I glanced at Mr. Tian and nodded.

"Then it's easy to explain," Tian Ge said, "The reason why my dad asked me to talk to you is because I'm afraid that you won't be able to accept it if it's too complicated." ”

None of you can afford me a pot! I thought to myself.

"It's simpler, for example." Tian Ge said, picked up a piece of paper from the table, and demonstrated, "We can think of an extremely thin piece of paper as a two-dimensional space. Now if I want to go from point A to point B, the closest distance is to go in a straight line......"

She drew two dots on the piece of paper and connected them in straight lines. I looked at the calm expressions of Teacher Tian and Meng Yiling next to me, and immediately understood that I was the only primary school student in this room.

"But if we want a closer route, we can do this...... "She folded the paper and put points A and B together." In this way, the two-dimensional space is essentially a momentary jump in position by borrowing from the three-dimensional space! Because in the process...... "she repeats the slow motion," it actually goes through three dimensions before returning to two dimensions. ”

As a result, some people have made a bolder guess that in three-dimensional space, there may also be such a possibility, which can be borrowed to a higher dimension to achieve an instantaneous transformation of space, which is commonly referred to as teleportation. So, how do you move it? Tian Ge asked.

He obviously didn't expect me to answer the question, and he didn't even pay attention to me, and after a moment's thought, he continued: "It's very simple, just like a two-dimensional position jump, it takes a pair of hands. Tian Ge said this and raised his little slap.

"Hands?"

"These hands are gravity." She said to herself.

"For example, if you want to come to Beijing from your hometown, what will you do?" She asked again.

I can confidently say, "Take the train!" ”

"Haha!" All three of them were amused by the stern look on my face.

After laughing, Tian Ge said: "Actually, there is a faster way, you can dig a tunnel, and it will definitely be closer from there, because the earth, oh, is a sphere." She clenched her fists and explained, "If I say that you will understand better if you go to the United States from China, you don't need to fly in the sky for more than ten hours, theoretically you just need to dig a hole in the ground and pass through the hole, it will definitely be closer than taking a plane."

This is so because the gravitational pull of the Earth distorts the three-dimensional space we are in. Whether or not it can actually pass through the center of the earth, at least there is a possibility. So some people speculate that when this gravitational force is strong enough to a certain extent, it will be able to create more miracles! Just like the ever-popular cosmic black hole theory, near a black hole with unimaginably strong gravitational pull, not only is the three-dimensional space distorted, but even time is changed!

Isn't it always popular in mythology to say that there is a day in heaven and a year on earth, but it has now been confirmed by cosmic science. Due to gravity, time on some planets is much slower than on Earth, and if one could actually go there and live, come back in a year, it would have been decades since Earth. ”

I have to say that although I don't understand half of it, I really began to admire the imagination of these scientists!

"But gravity alone is not enough. Because in the low-dimensional space, the complete form of the high-dimensional space cannot be presented. In other words, even if you can live in Beijing or in the United States, you will be torn apart by gravity when you borrow the four-dimensional space, and you will no longer be able to maintain the particle form...... Uh, the human appearance. This can be regarded as success and defeat! I saw Tian Ge's face flushed when he spoke, and he looked fully engaged.

"May I interject?" I asked weakly.

"Huh?" Her state was interrupted all of a sudden, and she looked a little unhappy.

"What the hell are you trying to say? Can you just say the conclusion? Let ordinary people like me understand first. "I propose.

"It's almost over, it's almost over!" She said impatiently, "If you don't understand the principle, how can you trust our next plan?" ”

"What's the plan?" I'm obviously more interested in this one.

"Don't ask, okay? I forgot where I got it! Tian Ge was anxious.

Meng Yiling saw that we had already started talking with chickens and ducks, so she had to hurry out to be peacemakers. She put her arm around Tian Ge's shoulder and said, "Okay, okay, I think he has completely convinced the theory you said, but it takes a little time to digest it." Let me tell you a story to relieve your boredom, okay? ”

Why is this going to start telling a story again? But since it was Meng Yiling, there must be another meaning. I hurriedly cooperated and said to Tian Ge: "Yes, let me rest first, and continue to listen to you for a while!" ”

Meng Yiling began to speak: There was an ancient man named Lu Sheng, who went to the scientific examination this year and failed to be admitted, and his mood was very low. On the way back to his hometown, he stayed at a small hotel, where he met an old man. The two of them began to chat, and Lu Sheng told the old man all the troubles of his current poverty and despair.

The old man gave him a porcelain pillow to use, and he fell asleep with the pillow on. Then I dreamed that I married a beautiful wife, and then I took the imperial examination to high school, promoted all the way, and had a full house of children and grandchildren, and lived until I was 80 years old, and finally died.

At the moment when he completely lost his breath, Lu Sheng woke up in shock and found that he was still in the small hotel where he lived, and the pot of yellow rice steamed by the owner next to him was not yet cooked! This is the allusion to the word "Huangliang a dream".

Tian Ge seemed to immediately understand what her sister Ling meant, and then said: "I have experienced decades in my dream, but it is only a few minutes in reality. That's what I'm going to say, another condition that is needed to turn back time, the subject must exist in the form of waves, and the speed of propagation must be faster than the speed of light! ”

I finally understood: "You mean that you want me to dream back in time?!" ”

Seeing the three of them smiling at me together, I felt that something was wrong. Meeting you crazy scientists is probably the biggest nightmare I've ever had!!

Tian Ge saw that I was silent, bowing my head and contemplating, thinking that I still didn't believe them, so he put the paper in his hand in front of me and said, "Take a look when you have time, what I said just now is not made up!" ”

"But, but...... "I thought I should try to dispel their whimsies," "what if I could dream of going back in time?" Do you want me to go back and persuade the old ancestor and his old man not to put any blood curse on us? Wouldn't that change history! Change history, maybe...... Maybe we'll all disappear! ”

The three of them looked at me with a smile and said in unison, "No! ”

Seeing that I looked puzzled, Tian Ge suddenly asked, "I said just now that to find a shortcut in the four-dimensional space, you need to borrow the five-dimensional space, do you know what the five-dimensional space means?" ”

I couldn't help but squint my eyes and stare at her fiercely.

She chuckled and said, "There is a lot of controversy about this, and one of the more agreeable is that it is in the four elements of the first four dimensions, plus the element of 'probability'. If everything that a space has experienced since its inception in history is like a thread, then the disagreement of some fortuitous events makes it no longer a line, but many lines. The form formed by the crisscrossing of these lines is the five-dimensional space. ”

Although I really don't like to listen to these things that exhaust countless brain cells, this time it is related to my own life and death, and I have to work hard to listen to it if I don't want to listen. And I can feel that they're trying to simplify complex theories to me.

Meng Yiling took over the conversation in a timely manner and continued: "If we use the previous theory of the unity of heaven and man to describe it, the environment we exist in now is like a person, this person may be yellow-skinned, black-eyed, and a Chinese. And another time and space that we don't know and can't directly touch is like another person, a foreigner with white skin and blue eyes. You are like a Chinese cell, even if you can transfer to that foreigner, some of the experience you have gained in the Chinese before is not applicable to the foreigner, and the role you later played in the foreigner is not reflected in the previous Chinese. ”

I listened even more foggy: "Then what am I still dreaming of going back to the past?" ”

"Get information!" Meng Yiling replied, "Now that we still know too little about the matter of the Xunzong Blood Curse, your ancestors must have their reasons for taking such a big risk and spending such a big fee on Zhou Zhang. Maybe they also hope that future generations will have the opportunity to go back to the past and investigate this matter well! And, because you already have this mark on you, there's a good chance it will lead you back to where you belong! ”

Tian Ge also said: "Yes, although different time and space are different in some accidents, there must be commonalities in inevitability!" Just like whether it is a Chinese or a foreigner, there are two eyes, a nose and a mouth! ”

"Then ......," I asked, with some concern, "can I still come back?" ”

They were suddenly silent. The message I read from this silence was: I don't know.