People's understanding of the four dimensions has a long history, and there have been countless hypotheses.

The most famous is the superstring theory, which directly affirms the existence of eleven dimensions in the universe.

In superstring theory, a zero-dimension is a point with no length, no width, and no height. One dimension is a line with no width and no height. A two-dimensional is a plane with no height. Three-dimensional is a space with length, width, and height.

At this point, people's perceptions are basically the same.

But from the fourth dimension onwards, everything becomes conjecture.

According to superstring theory, the fourth dimension is time.

This is easy to judge, because one-dimensionality is actually the final formation of a point in the zero dimension that extends infinitely in one direction. The two-dimensional is the infinite extension of one dimension to another spatial angle, and the three-dimensional is the infinite extension of the plane to the third dimension.

From this logical analysis, the fourth dimension must also be an infinite extension of the third dimension in the fourth direction.

But where is this direction?

Because people can't perceive the fourth dimension.

No matter how big the universe is, it is a three-dimensional cube in people's eyes, and it has nothing to do with size.

No matter how big it is, it's three-dimensional. Just like a piece of paper can be bigger than a Rubik's cube, but no matter how big it is, the paper is still two-dimensional, and it has no third dimension.

The fourth dimension must be the set of all the three dimensions in this dimension, and it is the infinite extension of the three dimensions in the direction of the fourth dimension.

So in which direction does the third dimension extend to form the fourth dimension?

Accounts differ and opinions vary.

In superstring theory, the fourth dimension is time, because it is the only direction of motion that people can perceive in common to the entire three-dimensional. If time is four-dimensional, then it does encompass all three dimensions of the realm.

But there are also objections, arguing that time is a separate dimension, as if two vertical and horizontal lines intersect. Time can be interleaved with 3D or 2D and 1D.

Those who agree that time is the fourth dimension think that this is wrong, because three-dimensional space also includes all two-dimensional and one-dimensional. It is incorrect to assume that time is another dimension that exists independently.

But it doesn't explain another problem, which is the irreversibility of time.

The space itself is reversible, like a scroll spread out into a painting, which can also be retracted. So the space can be folded.

But time doesn't work, it describes the trajectory of things, and once this trajectory is generated, there is no turning back.

For this reason, although time has been described together since ancient times, in reality they are fundamentally different.

Space is a real existence, elusive, but exists on a practical level.

Time is a concept, and according to Einstein's theory, if there are no elementary particles in space, time does not exist.

So time can't be folded.

Superstring theory, which is based on this paradox, has no meaning in the next five dimensions, six dimensions, and even eleven dimensions.

So where exactly is the fourth dimension?

After the advent of the gods, Terran scientists have verified it for a long time and believe that it is in space itself.

Just as low-dimensional beings cannot comprehend higher dimensions, being unable to understand does not mean that they do not exist, let alone that they cannot perceive. It's just that all perceptions of the four dimensions are three-dimensional.

It's like an ant climbing a tree from the ground, it obviously walks through a three-dimensional space, but its perception, the world is flat.

It's the same with people, we travel in the four dimensions, and because we can't perceive it, we have a long way.

And the real four-dimensional, because it is built on space, has countless shortcuts.

Those gods are undoubtedly creatures that can perceive the four dimensions, so their establishment of the Otherworldly Gate is actually far below imagination, because in their eyes, the so-called tens of millions of light years may not be that far away at all. From a four-dimensional perspective, it may be just a piece of paper.

It is precisely because of this that it is easy to "make holes", and there may be no need for origami at all, or it may only be folded a little.

After understanding this, and looking back at the Qingkong Clan, many problems were solved.

For example, although the green core of the Qingkong Clan can emit a magnetic field to affect space, this is actually not the most important.

Most importantly, it is used to perceive the fourth dimension.

When you are able to perceive the fourth dimension, the use of space at the three-dimensional level will become much easier and easier.

This cognition is not complicated, but it is like a stepping stone, which really opens the door to cognition for Yuan Chenfei.

Once something is pierced, it becomes much easier to understand.

Understanding is a breakthrough!

At this moment, as he continued to analyze the green nucleus in his hand, the green nucleus quickly disappeared at a speed visible to the naked eye.

It is not to absorb the power, but to directly and completely decompose it in the process of Yuan Chenfei's analysis, just like dissection.

What Yuan Chenfei has to do next is simple, he analyzed all the green cores in his hand one by one, and the speed was extremely fast.

Until the last blue core disappeared, Han Feiyu could feel that Yuan Chenfei's temperament seemed to have undergone some changes.

"How is it?" Han Feiyu asked excitedly, "Is there a breakthrough?"

"Yes. Yuan Chenfei replied: "My super sensing range has been enhanced. ”

"That's it. Han Feiyu immediately pulled down his face.

Yuan Chenfei smiled: "This is just the beginning, the key is to perceive the four dimensions." It is a gradual process, and as perception increases, the understanding of space deepens. That's not the point, though, it's ...... There's a way!"

There is a way!

In the past, Yuan Chenfei wanted to break through the space, but there was no way out.

Now he has a way out.

That's all that matters.

As long as there is a road, then the next thing to do is to keep going.

No matter how far he goes, those realizations will not be in vain, but will be combined with his existing system.

Now it's an enhanced super-sense, and in the back it may be a duel space, teleportation, or even a hypnotic illusion.

As for now......

Yuan Chen flew up: "I'm going to deal with those Qingkong clans." ”

Kill, reap, uplift.

The goal couldn't be easier.

Han Feiyu said, "Don't worry, there's still me here." ”

"Oh, what's going on with you here?" asked Yuan Chenfei.

He didn't forget that Han Feiyu's task was the most important.

"Alas, a bunch of troubles. Han Feiyu shook his head: "Now that the city wall has been completed, residential areas, palaces and other infrastructure are also being built. The problem now is that there are not enough resources. ”

"Tell me. ”

Han Feiyu took out the map: "Residential areas, alchemy towers, energy towers, palaces, temples and other infrastructures can be built with ordinary bricks and wood. But those special buildings require special resources. Eh, don't say it, I can see that this is a farming game, and it's a bit like the hero is invincible. The basic building is an ordinary resource, as long as there is wood and stone. However, special buildings and high-end buildings all require special resources. This requires us to take the initiative to go out to find it, fight, level up, and collect resources along the way. ”

Yuan Chenfei was also happy: "So, do you really plan to build all those special buildings?

"Hey, you just didn't see it this time, it's actually a trap set by the gods. Han Feiyu said triumphantly.

"Oh?" said Yuan Chenfei.

Quests for the gods have always had pitfalls, there's no doubt about that. However, Yuan Chenfei ignored this because of his previous focus on spatial breakthroughs.

Unexpectedly, this time, it was Han Feiyu who saw it first.

Han Feiyu had already said: "On the surface, we built a special building to give the opponent a chance to increase troops, but in fact, if we take a conservative approach, we will definitely be pitted by the gods." I'm sure that even if we don't build a single special building, after a month is over, the number of troops that the Blue Sky Clan will attack will definitely be more than 70,000. ”

Yuan Chenfei groaned: "Explain it." ”

"First, the mission only said that the Qingkong Clan was not allowed to attack the territory within a month, but it didn't say that after a month, only the Qingkong Clan could attack. ”

"Huh?" Yuan Chenfei's eyes lit up: "So you think they will ask for reinforcements?"

"It's possible, but it's not more. The second point is why the Qingkong clan is desperate with us? Hundreds of square kilometers of land are not small to be said to be small, but not big to say. But considering the prestige of our Terran and your current reputation, are they really confident that they can win it with the same number of troops? If they are not sure, then why should they fight with us?"

Hearing this, Yuan Chenfei pondered.

The second point Han Feiyu said seems simple, but it is actually of great significance.

In this Cyclops founding mission, Yuan Chenfei chose to establish a territory in the Qingkong Clan, and the main reason was that the Qingkong Clan was treacherous.

But the reason why the Qingkong Clan betrayed their trust was not only because the Goblin Clan gave enough benefits, but also because there was no problem with the Goblin Clan's coping strategy at that time, and they thought that the Goblin Clan could win.

The key is to win!

Therefore, after the destruction of the Goblin Clan, with the situation of the Qingkong Clan, it is impossible not to be nervous.

The reason why Han Feiyu was able to determine this was what Qu Wei told him - soon after the Goblin Clan perished, the Qingkong Clan came to sue for peace.

Originally, according to the normal situation, everyone would definitely have to have a bit of a fight and discuss the issue of compensation.

What I didn't expect was that not long after the discussion, the Qingkong Clan disappeared.

They gave up on suing for peace.

Whatever you want, come.

This made the upper echelons of the human race at that time very inexplicable, what is wrong with this?

But the goblins were newly extinguished, and they didn't think much about it.

It wasn't until after the Cyclops founding mission began that Yuan Chenfei chose to build a country in the territory of the Qingkong Clan, and the upper echelons of the Terran remembered this.

They are keenly aware that there may be a connection between the two.

For this reason, several discussions were held, and finally a conclusion was reached, which was also an important reason for Qu Wei to come.

"What conclusion?" asked Yuan Chenfei.

"This time it's probably a two-way mission. Han Feiyu replied.

"Two-way mission?" Yuan Chenfei was surprised.

"That's right!" Han Feiyu replied, "The Qingkong Clan originally wanted to seek peace. The boss didn't want to have one more enemy, so he offered a compensation price that he didn't think was excessive. But unexpectedly, they stopped suing for peace without talking later. I didn't understand it at first, but after combining it with the Cyclops' founding mission, I thought it was probably because of the relationship between the gods. They assigned us tasks, and at the same time, they also assigned tasks to the Qingkong Clan, so that they could not make peace. ”

"Has there been a precedent for such a two-way task before?"

"Yes, but not much, and that's why they didn't think of it at first. But what is certain is that if the Qingkong Clan also has a mission, then their troop limit is not necessarily impossible to break. Once they are able to accomplish multiple missions, the increased number of troops may be much greater than expected. Also because of the mission, they must give their all to this territory. ”

"I'll wipe it!" Yuan Chenfei scolded: "What about the good wish task?"

Han Feiyu gave a very philosophical answer: "The task is simple, but the gods are complicated. ”