It didn't take much effort for Becca to make it clear.

The key is still the central black hole.

Theoretically, the central black hole of all star systems is the basis of three-dimensional space. However, in what way does the central black hole become the basis of the three-dimensional cosmic space? This involves the creation and existence of three-dimensional cosmic space.

Strictly speaking, there is no three-dimensional space in the universe until the end of dimensionality reduction.

Although the dimensionality reduction is divided into several stages, and all the galaxies in the three-dimensional universe space exist in the form of micro-universes when they are formed, before the end of the dimensionality reduction, that is, before the three-dimensional universe space is generated, these micro-universes are completely separated, and even the micro-universes created by the same creator are not combined together, but are isolated.

In fact, the way the microuniverse exists is the key.

That is, at the time of dimensionality reduction, every creator who gets the opportunity to reduce dimensionality obtains a parallel space provided by a super being, and it is a parallel space of the three-dimensional universe. Of course, this parallel space actually directly determines whether the creator has the right to reduce dimensionality. It is precisely because of this that the creator actually first created the micro-universe in the parallel space, and finally transferred these micro-universes to the three-dimensional cosmic space, forming the stars in the three-dimensional cosmic space, making the three-dimensional cosmic space more substantial.

Obviously, it is precisely this that before the end of dimensionality reduction, that is, in the period of micro-universe, even the most powerful intelligent civilization cannot go to the micro-universe of other creators, and can only operate in the micro-universe of the same creator at most. The reason is that at that time, the creator directly controlled the parallel space that hosted the microverse, and the influence of the creator restricted the behavior of all intelligent civilizations, as well as other creators.

There's a problem.

That is, at the time of its birth, there were no star systems at all in the three-dimensional universe except for many central black holes. Even if it was only a momentary thing, that is, after those super beings were born in the three-dimensional cosmic space, they immediately transferred the stars in the parallel space. The problem is that even if it is only for a moment, the three-dimensional space itself is very empty and not fulfilling at all.

Obviously, the existence of three-dimensional space in an instant must be related to the central black hole.

The question is, is the birth of three-dimensional space irrelevant to the central black hole?

Obviously, the answer is no.

That is, the birth of three-dimensional cosmic space is directly related to the central black hole. It can even be said that it was the central black hole that gave birth to the three-dimensional universe.

Only a super existence like Becca knows this.

The central black hole of all galaxies is not only the basis for maintaining the stable existence of the three-dimensional space, but also the bridge between the three-dimensional space and the four-dimensional space.

In fact, the central black hole itself is an extremely wonderful existence.

Theoretically, if the central black hole is entirely a product of three-dimensional space, or is limited by the basic laws of three-dimensional space, then it should not exist at all. That is, the mass of the central black hole is too large, and the spatial distortion caused by it is extremely serious. Under the strong influence of this self-inflicted factor, the central black hole, even if it is a black hole, will quickly die out, and even destroy the entire star system by exploding. To put it more bluntly, there is simply no environment in three-dimensional space where the central black hole can stabilize. Under the influence of the basic laws of three-dimensional space, the central black hole will die out rapidly.

The problem is that the central black hole has not died out at all, and it is the most stable existence in three-dimensional space.

The key is actually the relationship between the central black hole and the four-dimensional cosmic space.

To put it bluntly, the central black hole is not a product of the three-dimensional universe at all, so it will not be constrained by the basic laws of the three-dimensional universe.

Fundamentally, the central black hole is part of the four-dimensional cosmic space.

When the super-existence created the three-dimensional space, the four-dimensional space was also dying, that is, slowly collapsing, and the role of the central black hole was actually to transform part of the four-dimensional space into the three-dimensional space, that is, in the process of transformation, remove the extra direction dimension in the four-dimensional space, and change the flow of time, so that time only passes in a single direction.

In fact, these changes are the basis of the basic rules of the three-dimensional universe.

It can be seen that the super-existence actually created the three-dimensional cosmic space through the central black hole, to be precise, the four-dimensional cosmic space was transformed into a three-dimensional cosmic space, and the transformation method was actually to remove a part of the four-dimensional cosmic space and change the basic rules of the four-dimensional cosmic space.

Of course, these things are only known to super beings.

However, the central black hole is also extremely unique because of this.

"Four-dimensional cosmic space debris is not gathered near the central black hole, but is created in the central black hole and then released." Becca sighed and said, "In the central black hole, although there are only three directional dimensions, the fourth directional dimension has not completely disappeared, but has been compressed into a singularity, that is, it has been masked, and only exists at the microscopic level, but cannot be shown at the macroscopic level. ”

Chu Tianjiang was still very surprised, because this was something he couldn't imagine.

"Actually, it's not just the fourth directional dimension. At the beginning, when we created the four-dimensional universe, we also adopted a similar method, that is, by compressing a directional dimension, the five-dimensional universe became the four-dimensional universe, and this compressed dimension still exists, but it can only be expressed at the microscopic level. The same is true further on. In other words, in the current three-dimensional universe, all the directional dimensions outside the three directional dimensions are actually only compressed and cannot be expressed at the macro level. ”

"The question is, what does this have to do with going back in time in three-dimensional space?"

Becca smiled and said, "Obviously, this is not directly related to the three-dimensional cosmic space, and it is impossible for us to change the macroscopic world through changes at the microscopic level. The problem is that in the central black hole, there is no clear boundary between the microscopic and the macroscopic because the space is heavily distorted. ”

"What?" Chu Tianjiang's eyes immediately widened.

"Theoretically, the central black hole is actually a singularity, and this singularity is both microscopic and macroscopic. It is only in the central black hole that the microscopic and macroscopic can be unified. Of course, it is precisely through this singularity that the central black hole can continuously generate four-dimensional space debris, that is, the fourth directional dimension is first released at the microscopic level, generating four-dimensional bubbles in three-dimensional space. Because the four-dimensional space debris is not affected by the central black hole, it will naturally emit and gradually expand as it is dispersed, eventually forming the familiar four-dimensional space debris. Of course, you have long known that in the four-dimensional space debris, time can be reversed, but this phenomenon only exists in the four-dimensional space debris, and if there is a conflict with the basic rules of the three-dimensional space based on the logical relationship of time, that is, the three-dimensional space, then the result of time reversal in the four-dimensional space debris will disappear when it leaves the four-dimensional space debris and enters the three-dimensional space, or it cannot be displayed. It is precisely because of this that we cannot turn back time in the three-dimensional space through the four-dimensional space debris, and we cannot change the basic rules of the three-dimensional space through the four-dimensional space debris. Fundamentally speaking, this is the only way to make the three-dimensional space exist stably. ”

"So, what's the point?"

"We can't turn back time in this three-dimensional space, but we can turn back time in another three-dimensional space."

"Another three-dimensional space?"

"A parallel space."

Chu Tianjiang was slightly stunned, and then said, "The problem is that the parallel space is not complete. ”

"Obviously, the parallel space I am talking about is not the parallel space that you know the way of. What you know is actually the parallel space that originally carried the micro-universe. ”

"This ......"

"On the opposite side of the microcosmic realm, there is another three-dimensional cosmic space, a space that is completely parallel to our three-dimensional cosmic space, and completely opposite. Of course, this is a complete three-dimensional cosmic space, as huge as our three-dimensional cosmic space. ”

"What?"

"To put it simply, it's a reverse three-dimensional cosmic space."

"This ......"

"The only way to get to this inverted three-dimensional universe is through the central black hole, because only in the central black hole is there a clear boundary between the micro and macro levels. It's just that you have also learned that it is a three-dimensional cosmic space that is completely opposite to our worldly realm, so even if you can go there, you can only let the information go. If it is an entity, even if it is an energy lifeform, it will die immediately. In fact, theoretically, it is impossible for us to allow the entities in this three-dimensional space to reach the other side. ”

Chu Tianjiang frowned, thinking seriously about Becca's words.

"Of course, for an existence like ours, information itself is everything, and it doesn't matter if there is a substance or not."

"The problem is, again, time has not been turned back."

Becca smiled and said, "In the four-dimensional universe, even at the microscopic level, time can be controlled, so as long as you can pass, you can go to any point in time in the three-dimensional universe on the other side, and it will not cause logical errors." ”

"Becca ......"

"It's up to you whether you want to go or not. I'm tired of it, or I don't want to go through it again. ”