Although Tang Cheng didn't pay special attention to the surrounding environment, this was not his carelessness, but there was no need for that at all, he had the ability to fully remember, and he had already remembered everything clearly along the way, so there were two pictures he drew on the ground at the moment.

The one on the left is basically a straight line, or more accurately a broken line, but it is always straight forward, as for the one on the right, although it is a straight line at first, it soon becomes a circle that constantly circles inward, and even this circle has no end, when the line drawn by Tang Cheng reaches the center of the circle, it wraps itself up again until it returns to the point where the straight line becomes a circle, and then winds around again......

The huge difference between the two pictures makes everyone seem to understand whether they understand or not, they are not people with unqualified IQs, and they can naturally see that Tang Cheng's two paintings are their walking routes, and in their consciousness, they are walking with the trajectory of the first picture, so ...... Is Tang Cheng's second painting their actual walking route?

At this time, Tang Cheng finally raised his head, looked at everyone and smiled slightly, and said: "I think you have all guessed, these two pictures are our walking routes, the first one is very simple, it is our wrong trajectory in cognition, we feel that we are moving forward like this in our consciousness and senses, but in fact, it is just an illusion brought to us by the environment and dimensions, and our real walking route is the second picture." ”

Mikoto Yi suddenly frowned, "I can understand the environment, but what is that dimension?" ”

"Dimension refers to independent space-time coordinates, 0 dimensions are points, there is no length, 1 dimension is a line, only length, 2 dimensions is a plane, the area formed by length and width alone, for example, the non-three-dimensional cartoons we usually watch belong to two dimensions. As for three-dimensional, it is to add height to the two-dimensional. Forming a three-dimensional concept, such as the three-dimensional games we played in those years, and of course, the world we live in...... Oh yes, another homophone of three-dimensional, is the size of a woman's chest, waist and hips, now as long as three dimensions are mentioned, the first thing that comes to people's minds must be the woman's three measurements, alas, it is really the world is declining, and people's hearts are not ancient. ”

"You don't have to say that last sentence." Lin Chen's face was full of shame.

"Okay. So let's move on to dimensions. Tang Cheng nodded, "If it's a normal three-dimensional space, our cognition will naturally not be wrong, but if it's a four-dimensional space, ......."

"What is a four-dimensional space?" Mikoto asked again.

Tang Cheng suddenly cast a disdainful look at her, "Didn't I already explain it very clearly just now?" I can't even remember this, you're really useless. ”

Yu Qinyi felt very wronged, "You didn't mention the four dimensions at all just now!" Besides, I'm just a little girl in the second year of junior high school, and this kind of listening to is the kind of few dimensions that doctoral students only think about. How could I possibly understand! ”

"Oh, then I ignored it." Tang Cheng couldn't help but be relieved, and then said, "Then I'll explain the four dimensions again." There are actually two concepts in this regard, the first refers to time, three-dimensional space plus a time dimension to form four dimensions. The other is the four-dimensional ...... in pure space Although people often talk about the fourth dimension is the concept of time, I prefer the second one because it seems to me. Time is ubiquitous, even if it is 0 dimensions, it also has the concept of time, so time should not be counted into the dimension, but belongs to the memory zài outside the specification. ”

"Then, when it comes to the four dimensions in space, this is actually a very abstract concept, because it is not concretely recognized, but like the sixth sense of human beings, it is formless and insubstantial, but the fourth dimension does exist, and it is not fixed like the third dimension, which will produce all kinds of irregular motion, and when the fourth dimension begins to move, the fifth dimension will be generated inside and outside the whole space......"

"Wait, wait!"

Speaking of which, not only the royal qinyi, but everyone frowned, they hadn't even figured out the fourth dimension, Tang Chengcheng suddenly jumped to the fifth dimension, and the addition of this dimension and one dimension made them very stressed.

"We don't know much about what you're talking about, can you briefly explain the current situation?" Charnoya asked.

"I don't even speak a single technical terminology, I don't even understand this, you guys are really a bunch of hopeless scumbags." Tang Cheng looked at them with an extremely sad gaze, and sighed heavily, "Alas, then I'll just say the result...... It is meaningless to simply rest in the fourth dimension, and in most cases, the fourth dimension is also in a static state, but once the fourth dimension moves and produces the fifth dimension, the whole space will become extremely chaotic, and our current situation is that we encounter the four-dimensional movement, and thus enter the fifth dimension, so as to produce cognitive illusions. ”

"In other words, is the change of dimension an illusion?" Xia Noya asked, as a person on the magic side, she couldn't understand Tang Cheng's words from a scientific point of view, so she could only understand it this way.

But Tang Cheng pursed his lips disdainfully, "Illusion is a piece of in front of the four-dimensional movement, the two are not comparable at all, and no matter how clever the illusion is, it can't work on me, if it's just an illusion, you are the only one who will be hit at most." ”

Speaking of this, Tang Cheng picked up a small pebble from the ground and said to everyone: "There is a saying called one sand and one world, this sentence is very correct, for example, this stone in my hand, although it is just a stone in our eyes, but for some things, it may be an infinitely vast world, and when the four dimensions begin to move, we may also enter this world." ”

As he spoke, Tang Cheng casually threw the stone out, took out a box from his backpack, opened the box, it was empty, then covered it, and then squatted down to dig a pit in the ground, and said while digging: "I think you have seen it more or less, even if you haven't seen it, you should have heard it, someone buried a sealed box a few years ago, and dug it out again a few years later, after opening the box, a frog or other creature will suddenly jump out of it, but what is the reason, have you ever thought about it?" ”

Speaking of which, Tang Cheng had already buried the box in the pit and covered it with soil, then withdrew a few steps, stretched out his hand and pointed to the pit on the ground, and said with a smile: "Now whoever of you digs it out and sees what will be inside." ”

Everyone looked at each other, their eyes full of disbelief, and finally Mikoto squatted down and dug the box out of the pit.

Will there really be frogs in there?

Although what Tang Cheng said seemed to be very reasonable, Yu Qinyi didn't believe it very much, even if she had heard of such a thing, and even happened to her once, but to say that there were frogs or something in the box just buried......

"Wow!"

At the moment when Mikoto opened the box, a terrible scream suddenly came out of her mouth, and almost reflexively threw the box far away...... True, there was no frog in the box, but there was a mouse.

"You, you...... You're pit me! Yu Qinyi stretched out her hand and pointed at Tang Cheng, so angry that she could barely speak, although the mouse and the box had been thrown out by her, but her fingertips still had the feeling of a mouse crawling, and her face was extremely pale.

Tang Cheng shrugged innocently, "I didn't name you to dig it." ”

"You ......"

Tang Cheng didn't pay attention to her anymore, but looked at Xia Nuoya and the others, who were already stunned, and said with a smile: "You can see clearly just now, I didn't put the mouse in beforehand." Although before this, the five-dimensional space was only my guess, but the current mouse is enough to confirm my guess. ”

"So, are we going to be like that rat and suddenly locked up in a box?" Droplet asked.

As soon as they heard this question, the four people except Tang Cheng all showed a trace of panic, although the people here were all experienced in a hundred battles, and they were not afraid of death or anything at all, but such a strange thing was much more terrifying than death.

"No, no, no, you still don't understand what I mean." Tang Cheng waved his hand again and again, "As I said just now, every sand and stone is the world, if you are just locked in a box, whether it is a frog or a mouse, you will die quickly, so the real situation is...... After encountering the four-dimensional movement, they entered the box due to the chaos of space, but at this time, the box was not that little space, but a huge world, so no matter how long it was, they could live until they died normally. But when the box is opened, it changes from the world to the box, so it seems to us that the frog is alive in the box...... As for our situation, it's very similar to the mouse just now. ”

"So what are we going to do? Do you want to wait for someone else to open the box? Serena asked suddenly.

Tang Cheng still shook his head, "Because there can't be a second box world in the box world, what we enter is not the box world, it should be a more huge five-dimensional space, that is, the five-dimensional space originally generated after the four-dimensional movement...... If it is a box world, there is no other way but to open it from the outside, and the original five-dimensional space can break through from the inside, so our situation is not hopeless. ”

Hearing him say this, everyone couldn't help but breathe a sigh of relief, but ......

"However, the initial five-dimensional space is also the most chaotic, although I can sort out the position we are in, but what we will encounter after that is impossible to calculate, because in the five-dimensional space there is no regularity, only one point...... The five-dimensional space is full of murderous opportunities, even if we take a slight wrong step, we may fall into a place of no return! ”

As Tang Cheng said this, everyone's hearts were raised to their throats again. (To be continued......)