time really does not exist? Some self-media like to say that time does not exist, saying that time is "just a human illusion."
As early as 2019, I "doubtedly explorer" saw an article titled " Why Einstein says "Time does not exist, human beings are deceived by memory"". The article mentioned that the author interviewed Shi Yu, professor of physics at the airport at Fudan University and vice president of the Chinese Quantum Mechanics Society, saying that Shi Yu thought this problem was "unclear". The article said, "Professor Shi Yu's answer is hard to say, because the theory of Big Bang is also a conjecture about the formation of the universe. The nature of time is also a conjecture, and there is no definite conclusion."
Does not exist? Of course not!
At that time, I specifically asked Professor Shi Yu on WeChat. He received his PhD in Theoretical Physics in 1994. He worked with British physicist Hawking and is a reviewer of the electronic publication "Intellectuals".
Professor Shi Yu told me that because he was in a hurry, he simply responded to the reporter's words. "A reporter asked a question at that time, but he didn't explain the problem clearly. I just dealt with it."
He said to me: "At present, time still defines the existence of time. This is the mainstream view. It is just a variety of speculations that have not existed in time."
I emphasize here that although the Big Bang is a conjecture, it is a scientific hypothesis and has a series of scientific evidence, so it is not whimsical.
I often see people asking questions: "Scientists have found that time does not exist at all. It is just an illusion created by human memory functions. Is that true?" I will explain it briefly.
First of all, we should emphasize that there are no "scientists" in the world who "discover time does not exist at all." Those who say those words are just people outside the mainstream scientific community, or a group of people's science or people's philosophy.
Time is a measure of the degree of exercise in physics. In the calculation of some equations and formulas, the quantity of time can be replaced by other quantities, so some people who don’t understand say nonsense that “time does not exist”. This is a mistake in thinking logic. Let me give you a metaphor. There is a war game. Cao Cao is a general in this game. Then this general can be replaced by other similar generals. At this time, gamers said that Cao Cao must not exist in reality. Do you think his statement is reasonable?
What is the time?
Many religious and philosophers from ancient times to the present have given their own explanations about what time is. However, these explanations are random explanations made by them without understanding scientific theories and relying on their personal imagination without any basis. To be honest, it’s just guessing. For example, ancient Greek philosophers put forward a view on the nature of time, and they believed that time is discontinuous, or does not exist. Time is similar to playing a movie. Isn’t a movie superimposed on a piece of light and shadow? Time is similar to playing a movie. The time experienced by an object is actually the moment when countless fragments exist in one grid. The ancient Greek idea of descriptive time was later introduced to Aryans and Ancient India . Buddhism developed again, and Buddhism referenced ancient Greece's philosophical concept of time and established its own concept of time.
Many people are fooled by some self-media, saying that time does not exist, saying that time is just a scale set by some artificially, and they are just imagined to facilitate calculations or adapt to people's way of thinking. This is a wrong view, because this statement denies Einstein's 4D space-time . In Einstein's view, time and space are inseparable, and time and space do not exist independently, but two sides of the body. In his explanation of the theory of relativity, the universe we live in is composed of time and space.Of course, time exists, but it is one with space. Time and space are not the relationship between water and sponge, but a deeper essence of time and space. The relationship between time and space is also added with an imaginary time axis in addition to the three axes of length, width and height of ordinary mathematical three-dimensional space. According to the theory of relativity, the amount of the element of time can be changed.
Suppose there is an eagle, which stands on a spire by the Huangpu River and remains motionless. At this time, it has not yet traveled through space, that is, the amount of traveled through space is 0, but it is also moving in the description of relativity. Because this eagle is traveling through time. This eagle is not intrinsically still, it is traveling through time. Suppose that the originally motionless eagle took off. The moment it took off, the eagle was doing two movements at the same time, one was to travel through space and the other was to travel through time.
This eagle is not still. It is in the time of travel
This eagle in the flying state. At this time, it is equivalent to using part of the time to exchange for the space for travel, and the result is that the amount of travel time decreases. Once a matter occurs through space, it will immediately lead to a reduction in the time of travel. Space and time are a physical complementary relationship. The quantities of space and time are transformed into each other, and on the one hand, they increase and on the other hand, they will decrease. Since this eagle is traveling through space, its movement speed through time will slow down. If the eagle had a precise feeling, it would feel that the passage of time it had flown would slow down.
So, time and space are inseparable from time to time, and they are inseparable. Time is a crucial and indispensable dimension in thinking time and space. If time does not exist, space will not exist either. If space does not exist, there is no one who says "time does not exist".
This denies the personal subjective fallacy that "time does not exist". Their so-called "space-time" that does not exist in the time dimension is not the four-dimensional space-time of the real world, but just something similar to a mathematical game. If you can't distinguish between reality and virtuality, you will say "time does not exist".
Einstein's four-dimensional space-time
In addition, if time really does not exist, the four-dimensional space-time in our reality will immediately degenerate, that is, degenerate into a purely mathematical three-dimensional space. In this three-dimensional universe without time dimensions, there are only dynamic changes in energy. If this is the case, there is no limit on the speed of light. Any object can run infinitely above the speed of light. No matter how fast it is, even if it is infinite, there will be no time expansion effect. This obviously does not conform to the basic concept of the laws of physics. A universe that is free from any physical rules and can do whatever it wants. We cannot accurately describe its laws, nor can we survive in it.
In addition, there are some fantasy novels about new modern streams that propose the concept of so-called "time crystal". For example, my friend, a Chinese writer in the United States, wrote "The Ruins of Time", which actually regards time as a powerful energy crystal. If humans manipulate this energy crystal, they can have endless magic power to reverse life and death, which is equivalent to the existence of gods in the universe. Of course, these are some science fiction concepts that have not been confirmed by the scientific community. They can only be said to have opened up a brain hole. We just need to watch it and enjoy it, don't take it seriously.
time is closely related to thermodynamics . According to the thermodynamic law of , all matter and energy must stop moving at the end, and at this time a state of physics called thermal silence occurs. In the state of heat silence, everything in the universe is infinitely close to absolute zero, no microscopic particles will move, and there is no heat transfer between each other, there is no transmission of information, but they are all in an absolute static state. Since there is no movement, there is no time.
Time also has a direction, that is, the direction of entropy increase.
Entropy is also a concept in thermodynamics, representing the degree of chaos in the system. The higher the system's chaos, the greater the entropy value. And our universe, physicists have determined that an irreversible trend is that the value of entropy will become larger and larger, and eventually it will reach silence. It is easy to understand that the universe is ultimately disordered because all energy will eventually be dissipated. The task of advanced civilizations like humans is to integrate scattered systems and reduce the disorderly dissipation of energy. Organized social order is an act of artificially reducing entropy.
For example, in the past, one family lived far away, and the other family occupied a forest. In winter, they were desperately cutting trees and burning firewood. Either a few people occupy an island and use the island's resources as they please. Isn’t this a waste of natural resources? Therefore, the inevitable stage of civilization is to establish cities. After the city is established, managers gather all the people scattered everywhere and concentrate natural resources to allocate them, avoiding unnecessary waste. Research data shows that the utilization rate of resources in cities is much higher than that in rural areas. It is not just natural resources. The city is concentrated in most excellent doctors and has high-level hospital facilities, while rural residents cannot enjoy this kind of medical resource.
city
Therefore, the more orderly the social organization level, the more beneficial it is to the continuation of human civilization. If there are other civilizations in the universe other than humans, the characteristics of their civilization will also reverse the entropy value as much as possible.
But no matter how technological level reaches, the cosmic silence is still inevitable. The energy of civilization comes from stars. Once the stars are burned, the energy is gone. You can't reverse this process. Stars are like a pile of coal. After being burned, coal is converted to release heat energy, and will eventually be burned into coke residue. Can you reverse this process and convert the coke residue back into coal with chemical energy? cannot! Even god-level civilizations cannot do it.
And the direction of time is the irreversible direction of the conversion and release of thermal energy during the combustion process. The coke residue cannot evolve into coal in the opposite direction, and the same time cannot reverse the direction. The arrow of time is moving forward. Since time has a direction, how can you say that time does not exist?
Author: Sceptic Explorer
