The existence that only Yuan Chenfei could see was naturally Misterra.

But this time, its light and shadow became more and more concentrated, no longer just a human form, but a nose and eyes, becoming closer to a real person.

It feels like the 50 cents special effect has been upgraded to a one-dollar special effect, and the effect is roughly the same as that of a third-rate network.

Misterra replied: "Your progress makes the gods happy. We have found that although the evolutionary ability of the human race is weak, the ability to understand and create is very powerful. So the gods also want to see where your understanding of this universe has come."

"I thought you were here to ban the spread." Yuan Chenfei said.

Misterra set out: "There is no need, and the gods never forbidden the spread of knowledge, because in the eyes of the gods, it is inferior."

"Understand, just like the omniscient clan pursues the theory of the unification of the universe, and all the gods pursue is thought and touch."

Misterra replied: "You don't know what the gods are pursuing. The leak of the rules of the gods is just to make everything more in line with the existing order, but the order does not rule out accidents, such as you. There must be some variables. Over the past ten thousand years, the apocalypse has created countless outsiders, seeking the ultimate manifestation of that variable."

Although everyone could not see Mistera, they could still hear his voice. When they heard this, they were a little confused.

"But if this is the case, then what I understand now may not have been understood before, so why hasn't it been spread?" Yuan Chenfei asked.

"If you can explain, they may not be able to understand, understand, and apply it. From theory to implementation, there is a long journey. Things that are not your own will be difficult to master after all. But if any of them can get promotion through this teaching, we will not object. Everything will be arranged in the dark."

This statement is really metaphysical.

Misterla said again: "Okay, now you can talk about your feelings."

Yuan Chenfei smiled bitterly: "I really feel like I'm back in my student days now, and I feel like telling my paper in front of the professor."

"I won't let you graduate," Mistera replied, and then said nothing, it was like a professor sitting there listening carefully.

Yuan Chenfei said, "Okay, since that's the case, then I'll say it. Feiyu, do you remember what I told you before? If you want to break through the space, you must understand the existence of the fourth dimension."

Han Feiyu nodded.

Yuan Chenfei: "Then we must first know what the fourth dimension is."

"Is it time?" Qu Wei asked.

"No." Yuan Chenfei shook his head: "It's a parallel space."

"Parallel space? Isn't that the sixth dimension?" Xia Ning obviously has read the superstring theory.

"You mean there are really countless worlds like us, and countless people with the same people?" Rouwa is a parallel space that she understands from the comics.

Yuan Chenfei shook his head: "Not this. Parallel space, the parallel one is space, not matter in space. You, me, and us are all matter in space."

Yuan Chenfei took out a piece of white paper: "Let's assume that this piece of paper is space, and there is a group of microorganisms that exist on the paper based on the two-dimensional level. In their field of vision, the world is flat."

Then Yuan Chenfei took out a stack of white paper of the same size and covered it on the first piece of paper.

Yuan Chenfei said: "Now you see that with the accumulation of a large amount of white paper, the two-dimensional dimension extends to three-dimensional dimensions. And all these white papers are space, but there are no microorganisms in the two-dimensional world on these papers."

Xia Ning understood: "Parallel space. Parallel space is space, not matter."

When countless pieces of white paper are stacked together, those white papers are the parallel spaces of the first piece of paper.

"That's right. The same is true for three-dimensional to four-dimensional. In a four-dimensional space, all three-dimensional spaces are enclosed, and the parallel spaces are spaces, not matter. So the parallel spaces exist, but there will be no other Rouwa, another Xia Ning, and another Yuan Chenfei. But on the other hand, there may also be life in those parallel spaces. For example, the Elf Realm, the Flower God Realm, and the Blue Sky Realm are located in these parallel spaces."

Li Zhanjun was surprised: "Are you saying that all the alien races do not exist in the same universe as us, but in parallel space?"

Yuan Chenfei shook his head: "No, parallel spaces are the same universe."

Everyone can't understand this.

Yuan Chenfei pointed to this stack of white paper: "This is the universe! What lives on the first sheet is the microorganisms representing the earth. What lives on the second sheet is the microorganisms representing the flower gods of the elves. These microorganisms do not live on the same plane, but exist in the same three-dimensional space."

Liu Li also understood: "From the perspective of the third dimension, we are indeed in the same universe, but from the perspective of the four dimensions, we belong to different spaces."

"That's right." Yuan Chenfei finally agreed this time.

He spread all the paper again: "For a two-dimensional creature, this is the world in its eyes. No matter what the three-dimensional form of these papers are stacked together, it cannot feel it. What it can see is all these white papers spread out in two-dimensional levels."

This time it was Qu Wei who explained: "It's like a globe made into a map."

"Yes. Now it is known that the observable diameter of the universe is 93 billion light years, but this is seen from a three-dimensional perspective, just like in the eyes of two-dimensional creatures..." Yuan Chenfei pointed to the large amount of white paper spread out: "The world is flat and has become huge because of this. But if you look at it from a four-dimensional perspective, maybe the universe is not that big at all."

He put all the paper together again.

The piece of white paper that originally occupied a huge area disappeared.

From a three-dimensional perspective, this is just the area of ​​a4 paper multiplied by the thickness of the paper.

But as Yuan Chenfei said, when these papers are spread out in two dimensions, a large area can be spread out.

Therefore, the real universe is much smaller than what everyone thinks? It is just because humans understand it dimensionality reduction, just like the globe that only turns into a map, so it forms an endless sense of space?

In other words, all parallel spaces are viewed from the same three-dimensional angle - the space is paved.

Yuan Chenfei picked up another piece of paper, drew a black dot at each of the two positions on it, and then folded it in half, and the black dots coincided exactly.

He said: "When this paper is stacked together, from our perspective, the distance between the two black dots is only 1 micron. Suppose there is a two-dimensional creature on this paper. Since it cannot go high, it has to go from one black dot to another. The only way is to walk along the paper, walk all the way to the folding point of the paper, and then continue to walk back along the connection point until it reaches the target position, so that the migration from one black dot to another is completed. For this microorganism, the distance between the two black dots is not 1 micron, but ten centimeters."

Yuan Chenfei poked the black dots: "Break the space and connect them."

Qin Wei nodded: "We all understand this principle, this is how the wormhole theory comes from."

Qu Wei shook his head: "It's different. The wormhole theory has always been based on the details of time and space, thinking that it is random. As for the statement of folding space, it is even more fallacy. It is equivalent to replacing low-difficulty behavior with a higher difficulty behavior. Just imagine if even space can be folded, what else should I consider? The whole space is under control. But if the four-dimensional space itself is a parallel space and has connections, then things are simple. The so-called wormholes and folding are not required at all, because they are interconnected. But we can't walk through it, just like two-dimensional creatures cannot jump directly to the upper layer. This is not a problem of hole digging, but a problem of their own movement. Isn't it ridiculous for a two-dimensional creature who can't even jump from paper to another piece of paper to fold paper? "

Yuan Chenfei smiled and said, "That's right. Therefore, the three-dimensional space teleportation does not require wormholes at all. There is no wormhole or folding space, because the space is folded, and we only need to be able to get out of the four-dimensional limitations and learn to 'jump'. The current gate of the other world is actually a four-dimensional bridge, just like building a bridge between two black dots on paper so that two-dimensional creatures can climb over it."

Xia Ning also understood: "So this is why one's own breakthrough can achieve space transmission. Perceive four dimensions and walk in parallel spaces, you can instantly reach where you want to reach."

Yuan Chenfei added: "The premise is that there is indeed four-dimensional interoperability in the target point."

Yuan Chenfei drew a black dot on one piece of paper again, then drew a black dot on another piece of paper, one placed on the top and the other placed on the bottom.

He said: "Now you see that if there are two plane black dots like this, even in three-dimensional space, there is a long distance. If a two-dimensional creature wants to 'jump' over, it also has to go through a long journey."

After saying this, everyone understands.

Four-dimensional space cannot cross all distances without limit, and it also has different distances.

Take two-dimensional creatures as an example. If this two-dimensional creature wants to walk from one black dot to another, it must climb over countless paper surfaces.

It had to climb only ten centimeters before, but now it may have to climb several meters to reach.

"So, the further the three-dimensional space, the further the four-dimensional distance may be?" Han Feiyu asked.

"Yes, but not all." Yuan Chenfei folded a piece of white paper again, drew a black dot at one end of the paper, and then drew another black dot at the opposite side near the folding mouth.

He raised the paper: "You see now that these are two black dots that do not overlap after folding in half. In three-dimensional space, the distance between these two black dots has increased from 1 micron to one centimeter. But in the eyes of two-dimensional creatures, the distance it needs to crawl is shorter, because this black dot is close to the edge area, which is equivalent to only two-thirds of the distance, that is, six or seven centimeters, to reach it."

Therefore, the distance and nearness of the three-dimensional level do not absolutely represent the distance and nearness of the two-dimensional level.

By the same token, the same should be true for four-dimensional space.

But no matter what, if you can jump to the fourth dimension, the journey you walk is definitely much shorter than that of the third dimension.

"How do you distinguish?" everyone asked.

Yuan Chenfei replied: "If you want to walk to the front of a mountain, you must first see it."

The topic returns to its original results.
Chapter completed!