Space-time cavity
Anyone who has read advanced mathematics knows that there are many kinds of space models, and Euclidean space is the most widely known one, because what we usually call three-dimensional space is three-dimensional Euclidean space. Euclidean space can be described from one dimension to many dimensions, which can be tens, hundreds, thousands, tens of thousands, or arbitrary dimensions. One-dimensional space is a straight line, and two-dimensional space is a plane. If a creature lives in a one-dimensional space, that is, he can only move forward or backward along the one-dimensional space in which he lives, that is, in a straight line. If the straight line is in a two-dimensional space, that is, a plane, and there are people on this plane, then compared with people in one-dimensional space, he can reach the whole plane except the straight line, which shows that people on the plane are more capable than people on the straight line. The higher the dimension of a simple space, the greater the range it reaches. Because of the limitation in the low dimension, he met a high-dimensional person and could never understand the situation in the high-dimensional world. People with high dimensions can go anywhere to people with low dimensions, but people with low dimensions can't.
For example, compare the world of ants to a two-dimensional world, and the world of people is three-dimensional. Where ants go, people can easily go (at the ground level), but ants can't reach the height of human space.
If we want to talk about different dimensions, we must start with virtual people. In the last century, the first virtual human project in the United States was to put a dead person with good health standards (mostly death row prisoners) into a sink, make him freeze quickly in a cold storage, and then carry his frozen body into a CNC milling machine. The high-speed milling and planing machine thins the ice from head to toe (each layer110 mm), and takes high-definition digital photos of each layer and inputs them into the computer. After all cut down, it is estimated that there will be more. Then, the digital photos are restored to a three-dimensional model in the computer. Because of the color difference of various organs of human body, circulatory system and nervous system can be separated and displayed by digital technology. This is the "digital man" who once shocked the earth. Digital people may be originally for medical research, but soon someone put forward higher requirements for digital people and put forward the following ideas for the development of digital people technology:
1. Using simulation technology to restore the physiological activities of digital people is to turn digital people into living digital people, or more accurately, living digital vegetarians.
2. Combining simulation and animation technology, digital people can have human movements.
3, combined with digital language reduction, let digital people speak.
4. Connect the digital human brain neural network with the real human brain neural network to realize real-time simulation.
Finally, the most difficult thing is to give people's emotions and worldly desires to digital people.
In this case, will QQ chat be as superficial as it is now? Brother Q, wearing a helmet-mounted computer, can chat with a real virtual person and a sister Q in a scenic spot in real time. The game is not as cool as it is now. I don't need to explain what the game of Warcraft will lead to.
This is entering another dimension, a virtual spiritual world interacting with the real world, which can exist in the network, electromagnetic space or even compressed into a chip.
Some people say that this is Japanese (which may appear in many Japanese comics) and translated into Chinese is "parallel universe".
Nowadays, this word has been widely used in novels and TV works, and has become synonymous with just visiting.
But only "high-dimensional space" has a similar meaning to this word.
The world we live in is a three-dimensional space. It has been suggested that the real world may be not only three-dimensional, but also four-dimensional or even multidimensional. If it is a four-dimensional space, then time can be added, which can explain some events traveling in time. However, this idea is still in the imagination stage, and no one can confirm it. According to this idea, mathematicians have built a multidimensional space model and studied it theoretically. This may be the dimension you mentioned in the dimension tunnel. In another dimension, people can not only change their position in space, but also change their position in time. In other words, people can go to any age they want according to their own wishes. "
A Brief History of Time demonstrates that there will be no life in the space below two dimensions, while studies in other places have confirmed that atoms above four dimensions (including four dimensions) are unstable.
At present, these are just guesses. It is difficult for the human brain to directly imagine a space higher than three dimensions. Most people engaged in this research study according to the method of establishing coordinate system.
Sometimes, things around you can't be discovered suddenly, but in the blink of an eye, people will think it's their carelessness. The theory of different dimensions holds that things suddenly enter different dimensions, but it may be a moment in a very short time, so it will not cause conflicts in parallel spaces. But so far, I haven't heard any clear arguments to support this statement, which is also very strange to me. In that case, why is there a reason for everything, but no similar incident has happened to people?
Different dimensions refer to the world of several dimensions of the earth. We exist in a three-dimensional world, and the earth is not only a three-dimensional world, but also a two-dimensional 1 four-dimensional, five-dimensional or even higher world. There are people in these worlds, and they all exist on this earth. For example, we have a classroom, maybe the four-dimensional world is a street, and there are interfaces between each world that can lead to other dimensions (I forget what the interfaces are called), but being away from one place for a long time is usually a flash. If there are people in the place where the interface suddenly opens, they will be sucked into other dimensions, and those who are sucked in and come back will not get old in those years in other dimensions. Let's just say that a 60-year-old man will be 80 when he comes back 20 years later, but he is still 60. We thought he had been gone for a long time, but he didn't. This is another dimension.