The 20th century is a great century, because in this century, some great scientists were born, such as Einstein, Tschela and so on. The birth of great scientists also gave birth to some great theories with far-reaching influence on mankind, such as Einstein’s mass-energy equation and the theory of relativity.
Now is 2020, which is the 20th spring and autumn of the 21st century. In the first 20 years of the last century, some great scientific theories such as the theory of relativity were born. So what kind of great scientific theories will appear in the 21st century? In fact, in a strict sense, there is really no new great theory born in the 21st century.
Although the research and exploration of quantum mechanics in the 21st century has entered a new stage, the theory of quantum mechanics was not born in the 21st century. It is also a product of the last century. In addition to quantum mechanics, there is a more mysterious scientific theory in the 21st century that is the goal of many physicists’ continuous exploration and research. This theory is string theory.
Many people may not have heard of string theory. It is a branch of theoretical physics. A basic view of string theory is that the basic units of nature are not point particles such as electrons, photons, neutrinos, and quarks, but A very small linear “string”. The different vibrations and motions of the strings produce different kinds of elementary particles.
String theory is a great theory that is very mysterious and subverts the existing physical system. Whether this theory is correct or not, there is currently no way to prove it. Therefore, string theory is currently only a scientific theory under conjecture. If it is confirmed in the future, it may surpass the theory of relativity and become the greatest theory in the history of human science.
String theory sounds very sci-fi and it is difficult for many people to understand. In fact, let’s not think of it too complicated. The greatest thing about string theory is that it tells us that this universe is not one-dimensional, but multi-dimensional. I believe many friends have heard of multi-dimensional cosmology. That is to say, some scientists have guessed that our universe may be composed of eleven dimensions. Constituted.
The basis of multidimensional cosmology is string theory, which is a product of string theory. With the rapid development of science and technology, more and more scientists have begun to support multidimensional cosmology. It is believed that the universe is multi-dimensional, and there are high-dimensional spaces above the three-dimensional space in which we live, and the dimensions above the three-dimensional space are four-dimensional spaces.
According to multidimensional cosmology, the space we live in is a three-dimensional space, that is, a space composed of length, width, and height. And above three dimensions is four dimensions. The so-called four-dimensional space is a time dimension added to the three-dimensional basis, that is, the four-dimensional space is composed of length, width, height and time.
For the definition of four-dimensional space, an important factor is time. But time is the most mysterious element in the theory of space-time in the universe. Until now, scientists have a certain understanding of space, but they still don’t know anything about time. Although we are dealing with time every day, the definition of time in the human world is only a product of human subjective consciousness. That is to say, the time in our cognition is only defined by human beings, and it is not the essence of time.
Time is an invisible and intangible thing, so it is difficult for us to explore the essence of time through experiments. Although we cannot see or touch time, we can feel the existence of time. This is somewhat similar to human consciousness. We can’t see or touch consciousness, but consciousness is real.
Why can’t you see or touch time in three-dimensional space? We didn’t understand it in the past, but after the emergence of the multidimensional cosmology proposed by string theory, perhaps we will understand. Because in three-dimensional space, time is an intangible existence, it is not a dimension and cannot be truly displayed. This is like in a two-dimensional space, only length and width, height is an invisible existence.
If there are intelligent beings in the two-dimensional space, they can’t see or touch the height, but they can truly feel the existence of the height. The reason is that height is something in three-dimensional space. Only in three-dimensional space can height be displayed in a specific form. In the same way, in a four-dimensional space, time has become a specific dimension, and it will be displayed in a specific form.
Therefore, when we enter the four-dimensional space, the time you see is not just the present, but the past and the future are in the same space. If it is not clear yet, let’s take another very simple example. We can imagine different times as three-dimensional boxes. In the four-dimensional space, there are countless three-dimensional boxes of this kind, and each box represents a time period.
When we walk into different boxes, we can see a person’s fate at different times, such as the box in the past and the box in the future. These boxes of not two time periods co-exist in the four-dimensional space. They will not intersect each other, but we can shuttle through different boxes, shuttle past and future, and shuttle on different timelines.
I believe that many friends are very yearning for the four-dimensional space, so how do we enter the high-dimensional space? If we can enter the high-dimensional space, then we can grasp the past, present and future of time, and we can shuttle on the timeline. What a wonderful time-space journey.
But to enter the high-dimensional space, scientists can’t think of a specific method, but some scientists have put forward a possible conjecture, that is, human dreams may be a hub connecting three-dimensional and four-dimensional. I believe that everyone is familiar with dreams. People will have many dreams in their lives. Some dreams may be familiar to us, but some dreams are very strange to us.
For dreams, the scientific community also has different interpretations. Some people think that it is an activity in the human cerebral cortex, which is nothing unusual. Some people think that dreams are an activity of human consciousness, but few people would think that dreams can’t be something higher? There are many mysteries in human dreams. From ancient times to the present, the exploration and research of dreams has never been interrupted.
In ancient times, people explored dreams through the perspective of gods, while modern people explored dreams through scientific methods. In my opinion, dreams are an act of human consciousness. This is a high probability event, but what is consciousness? This is another huge mystery.
Human consciousness is a very mysterious and complicated thing. If this universe is a multi-dimensional space, then can consciousness be able to do it through different dimensional spaces? This is entirely possible. It is possible that the human body cannot pass through a space with more than four dimensions. Only mysterious things with pure energy like consciousness can cross the dimensional wall and enter the four-dimensional space from the three-dimensional space.
When consciousness enters the high-dimensional space, it can shuttle on different timelines and move back and forth in different three-dimensional time boxes. And the scene of this activity appears in the form of dreams, so some people will dream of past scenes, which may be the timeline of consciousness entering the past. Some people’s consciousness enters the timeline of the future, and the dreams show the scene of the future, so they feel very strange. Until the future happens, we have a feeling of deja vu.
Dreamland, if it really enters the entrance of four-dimensional space, how will scientists pry open the door of this entrance? This is a question worth thinking about. And dreams are beyond our control. If scientists find a way to control dreams in the future, does that mean that we can also enter the four-dimensional space at will by controlling the dreams, and selectively explore different timelines? If this kind of technology is really realized, perhaps mankind will enter a brand new era and become a more advanced life and a stronger civilization. We look forward to this day.