The Ring That Defies The Heavens Chapter 1981: The truth of space

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"Do you understand the Dragon language?" The old man did not directly answer Jiang Fei's question.

"Understood," Jiang Fei replied. He had done a lot of hard work in this area before.

"That's good, it's difficult for me to express clearly in human language ..." The old man said that it was replaced with the Dragon language to communicate with Jiang Fei.

Because Jiang Fei has worked **** the Dragon language for a period of time, he can completely translate these words into his own language and understand them.

"What do you understand about space?" The old man asked, and the dragon language in his mouth was automatically translated by Jiang Fei to success's own vocabulary.

"Space? I know that our Life is in a three-dimensional space, maybe there is biological Life in a higher dimension than us." Jiang Fei said, but in his mind, it is not possible to have a biological existence in a higher dimension Because those guys have invaded this universe!

"Oh, senior, is the fourth dimension of the four-dimensional space time?" Jiang Fei suddenly thought of a question.

"Of course not!" The old man shook his head, and then said to Jiang Fei: "Time is a special vector, there is time in one-dimensional space, there is time in two-dimensional space, there is time in every dimension space Exists! Time and space are two different concepts! "

"Such!" Jiang Fei nodded.

"Okay, the relationship between time and space has been explained, so can you tell me the relationship between various spatial dimensions?" The old man nodded, and then continued to ask Jiang Fei in the Dragon language.

"Relationship?" Jiang Fei was stunned. He didn't understand what the old man asked.

"Okay, let me tell you from the beginning." The old man sighed and said to Jiang Fei: "The so-called one-dimensional space is a straight line. If there is a creature on this straight line, then it's in In the perspective, there is only one point before and after, it can only move forward or backward. "

"And countless straight lines constitute a plane of success, which is the so-called two-dimensional space. The creatures in this are no longer limited to straight line movements, but can move freely up and down, left and right." The old man continued.

"Well! That's true!" Jiang Fei nodded, the old man's description coincides with his knowledge in the technological world. Although the language of the Dragon language has a different name for the spatial dimension than the outside world, it also corresponds to each other. They all mean the same thing.

"The three-dimensional world of our Life is actually composed of countless planes. After the layers of two-dimensional worlds are superimposed together, we construct the three-dimensional world of success where we are." Fly, and then continued: "So you can imagine that the four-dimensional space is actually formed by the superposition of countless three-dimensional spaces."

"What does that four-dimensional space look like?" Jiang Fei asked curiously.

"To talk about this issue, we have to start with our understanding of space." The old man said that he paused here, and then continued: "I don't know if you found it. Our observation of the world is actually Through dimensionality reduction. "

"What do you mean?" Jiang Fei was shocked.

"An example." The old man reached for a stroke and a light appeared in the air.

"This is a straight line, which represents a one-dimensional space. If there is a biological Life here, then in his eyes, there is only one point in front and one point in the back, which means that Life is in one dimension. He can only see the creatures in the space. "After the old man finished speaking, the light in mid-air disappeared and replaced by a wall of light.

"You see, this is a plane, which represents a two-dimensional space." Then the old man waved his hand, and many patterns appeared on the light wall, with squares and circles.

"If it is a Life creature on this plane, from his perspective, these squares or circles are actually invisible. All he can see is a line facing him." The old man said again Waving his hand, the light wall disappeared, but a solid wall replaced it.

"Our Life is in a three-dimensional world, and now you look at it from your perspective. What is in front of you?" The old man asked Jiang Fei.

"A wall!" Jiang Fei said of course.

"Well! That's right! But this is also a plane! You can't see what is behind the plane at all. Because you are a person in the three-dimensional world, you can only see the plane in the two-dimensional world." The old man said.

"No! I can see three-dimensional objects, such as this ball!" Jiang Fei said and took a ball from the ring space.

"Oh, that's just your answer based on a lot of relevant knowledge, in the subconscious mind ..." The old man said he took the ball from Jiang Fei's hand, and then when he waved his hand, the surrounding light instantly changed It had to be dimmed, and at this time in Jiang Fei's eyes, the ball had only a little round shadow.

"You see, after losing the contrast of light and dark, your brain can no longer calculate, the real image you see in your eyes is just a circle." The old man laughed.

"It turns out that this is ..." Jiang Fei nodded. It turns out that the three-dimensional world in his eyes is just a two-dimensional image returned by his eyes, and then the brain calculates and supplements the result based on the knowledge of light and dark contrast and near and far.

"So, a person in a dimensional space can only perceive his space through dimensionality reduction. He cannot see the true purpose of his space!" The old man finally gave the conclusion.

"It turns out so!" Jiang Fei nodded, no matter how fascinating the scenery in the picture is, the creatures in the two-dimensional space can only see a straight line, and the colorfulness of the three-dimensional world is also in people's eyes. But it was just a mosaic of pictures. Although this answer left Jiang Fei a little lost, it was the case.

"So you understand." The old man smiled, and then continued: "The so-called four-dimensional space is the product of the stacking of countless three-dimensional spaces. Of course, this kind of stacking is not as simple as trying to build a house with bricks. It ’s still a three-dimensional world, so the stacking is structured together in a way that we ca n’t understand. People there can see through our world like we see through the essence of the two-dimensional world; the world in their eyes It is composed of real three-dimensional images, and because we cannot observe the real three-dimensional world, we have no way to describe their world. "

"Don't people in our three-dimensional world even imagine the four-dimensional world?" Jiang Fei asked.

"No!" The old man shook his head, and then said: "But I found something interesting, which may help you solve some doubts."

"What's interesting?" Jiang Fei immediately asked.