Time traveling?

Qi Lin never thought that Li Rui would do such an amazing thing quietly.

Because of her work, she often has contact with Angel Burning Heart and other angels, and the two of Dilena's master and servant, and she has also learned a lot of information about other god-making civilizations from her communication with them, but she has never heard of anyone who can travel through time and space.

"Did you really travel to another earth?" Qi Lin raised her head in surprise and stared at Li Rui's face, as if she was looking at some kind of monster.

Li Rui thoughtfully lifted the slippery quilt up and covered her fragrant shoulders: "I can't lie to you." Otherwise, I'll take you to see it? ”

"Still not." Qi Lin looked at him suspiciously, and after confirming that it was his closest person, she leaned her head on his arms again: "It's just a little surprised." What is the other Earth like, the same as ours? ”

Recalling what happened to the earth in the past, Qi Lin's heart was always full of sadness. Along the way, so many people who fell under the war were not just a set of numbers, but a piece of fresh life, and behind them were broken families.

It's hard to imagine that the same fate would befall another world.

Li Rui hesitated for a moment and transmitted the data scanned by Nuwa to her.

There is no one in the parallel world, and he doesn't intend to explain this problem. The special identity of the traverser is still buried in his own heart.

After Qi Lin received it, a sadness spontaneously arose in her heart, a world without Li Rui, but there are still all kinds of external forces eyeing her, you can imagine what kind of disaster she will face.

It's not that she looks down on some people in Xiongbing Company and Denuo, it's just that judging from the information collected by Li Rui, these people are really not good.

Not to mention anything else, without Li Rui's support, the level of genetic development of those super soldiers is really low, and it is scary that such a company can deal with gluttony, demons and other enemies, even if she does not perform data calculations, she can see that the future of the earth in this world must be full of ups and downs.

Although it is another world, the sense of cultural identity inherited in her bones still makes Qi Lin can't bear to see people with the same skin, the same hair color, and the same cultural heritage as herself suffering such a cruel fate.

Maybe it was to prevent Li Rui from perceiving what he was thinking, after all, he had already taken on enough pressure, so Qi Lin asked a question in a skeptical tone: "Is it?" Does the other earth also have me? ”

"Yes."

"Then ......" Qi Lin suddenly got closer, her lips opened lightly, and she gently exhaled a breath of wind with a fragrance, and asked in a seductive tone, "Is it me who is beautiful or is she beautiful?" ”

Li Ruiden couldn't cry or laugh, why did this girl still eat her own vinegar? At that moment, he hugged her tightly and coaxed her with good words.

Qi Lin gave him a smug little look, and then asked in a changed tone, "Then did you succeed or fail this experiment?" ”

A complicated look flashed in Li Rui's eyes, and he replied, "It's a success." ”

The moment he returned to the macrocosm, the system sent a reminder that the task was completed and asked if he wanted to submit. It's a pity that Li Rui chose to refuse. The last time Kuntasha template had already suffered a loss, and he didn't want to be embarrassed by the passing grade again.

Besides, since he obtained the system, there have been so many templates, but Li Rui found that he hadn't tapped out all the power of these templates, so let's take advantage of this time to digest and digest them.

"What do you mean?" Qi Lin hammered his chest, and muttered dissatisfiedly: "If you succeed, you will succeed, and if you don't succeed, you won't succeed, what kind of answer is this." ”

Li Rui covered his chest, put on a hurt expression, and pointed to his cheek. Qi Lin got up helplessly, and pecked him lightly on the face: "It's okay now, say it quickly!" ”

"Haha, in fact, I have two ways to travel through time and space, one is through the quantum realm, and the other is through the heart of time and space. This time, I understood the difference between the two methods. The quantum realm can only reach parallel worlds, and it cannot truly realize time travel. ”

Qi Lin was slightly stunned: "In other words, there is another way to achieve a real time relapse and go back to the past?" ”

"Well, we'll have to experiment with it."

"Alas, then you say, if we go back tens of thousands of years and strangle Morgana at that time, wouldn't the earth have to suffer so many disasters?"

Li Rui was stunned for a moment, and looked at the whimsical girl in his arms with a smile: "It's dangerous for you to think like this." ”

"What do you mean?"

"To understand this, we have to understand the composition of the universe." Li Rui said, waving his hand in front of him, and a flashing golden dot appeared in front of the two.

"First of all, it's zero-dimensional. Then, the one-dimensional ......"

Li Rui's hands were parted left and right, and the golden dots extended into a golden line. Then, the hands are separated from the front and back, and the golden thread unfolds, turning into a flat surface.

"Oh, I see, zero-dimensional points, one-dimensional lines, two-dimensional planes, three-dimensional space." Qi Lin nodded, looking like she couldn't help me.

"Really? So, what about the four dimensions? Li Rui asked funny.

Qi Lin said strangely: "Didn't you add a timeline?" ”

Li Rui shook his head: "This understanding is not accurate. ”

In the common understanding, zero dimension is a point, one dimension is a line, two dimensions is a surface, and three dimensions are space. We are in three-dimensional space, and when three-dimensional is added to the dimension of time, it constitutes a four-dimensional world.

But for Li Rui, who has the heart of time and space, this understanding cannot be said to be wrong, but it has certain limitations.

According to Li Rui's research on the heart of time and space, time should be a pseudo-dimension, and the accurate algorithm should be to add one dimension to the dimension of the multi-dimensional creature itself to form a new n+1 dimensional space.

For example, if there are two-dimensional creatures, then they will not be able to perceive three-dimensional space compared to three-dimensional creatures, but two-dimensional creatures will still have time to pass, so they will treat time as a third dimension. In the same way, we are three-dimensional beings, and we cannot perceive the existence of the fourth dimension compared to the four-dimensional beings, so we regard time as the fourth dimension.

Qi Lin thought for a moment, and seemed to understand, but she didn't understand. She hesitated for a moment and asked, "So, what is the fourth dimension?" ”

Li Rui's hands moved, and the golden ball of light representing the three-dimensional space in front of him began to copy out of thin air. At the same time, a black space filled the area around these golden balls of light.

The model in front of me immediately changed dramatically, like a big ball covering a small ball. The outermost part is a black sphere, and the inner part is a myriad of golden spheres scattered among the black spheres.

"You see, under this theory, the universe is redefined: the whole universe we live in is a membrane that can be bent and stretched at will, also known as three-dimensional space, and there is also a membrane not far away, so to speak, another universe, which is also three-dimensional space. distinct

The void in the three-dimensional space is the four-dimensional space.

Under the action of some unknown force, the two membranes approach slowly at an extremely slow speed, and when the membranes come into contact, they collide with each other, and the kinetic energy is converted into heat energy, and the heat energy begins to slowly disperse on the membrane, and everything in the universe begins to be destroyed, and then cools down and starts a new cycle.

When the collision is completed, the two membranes spring back to their original positions, and under the action of unknown forces, they slowly approach, and so on, and the universe begins to circulate, never stopping. ”

As Li Rui spoke, these golden three-dimensional spaces continued to collide and separate.

Through the model established by Li Rui, Qi Lin seems to see countless universes being born, growing, and annihilating, and among them, there are many civilizations facing the same fate as the universe.

Human beings have always instinctively developed a shocking, fearful emotion towards huge objects. The scale of cognition transcends the earth, the solar system, the Milky Way, and now the universe, and the shock can be imagined.

Qi Lin was in such a deep shock right now.

Li Rui knew that these theories were very winding and difficult to understand intuitively, but he still had to continue to explain: "After talking about dimensional space, let's look at time." In this theory, time has two definitions, one of which is time in our secular sense, that is, time in the sense of the present universe for human beings.

There is also a definition of "imaginary time", which has no beginning and end, but always exists, and is an unlost axis used to describe superstrings. ”

The so-called jumping timeline of the heart of time and space is to enter virtual time and locate different low-dimensional spaces through the perspective of virtual time, including the three-dimensional universe.

These different low-dimensional spaces are defined as "past", "present", and "future" matter from the perspective of imaginary time. You can go back to the past through virtual time, but you can never really go back to the past.

When Li Rui exists in the "past" and exerts influence on the "past", there will be countless "presents", which are commonly understood as timeline branches.

After some theory, Qi Lin's head was dizzy, and there was a lovely confusion on her beautiful face. She didn't understand what was going on, but she did understand one thing: going back to the past doesn't change the future.

Moreover, there is also a very special problem involved: Li Rui's heart of time and space ensures that he is the only individual in the past and in the future.

To use mythological terms, it is the so-called jumping out of the long river of time.

Therefore, when he changes the past, he creates one of countless kinds of futures, creating the illusion of changing the future in the cognition of ordinary people.

But beyond the current universe and back to the imaginary time, it is still useless, it is just another parallel universe......