Everyone is dealing with time every day, every moment. We commute to and from get off work on time every day, the sun rises and sets regularly, 24 hours a day, 365 days a year, etc. are all manifestations of time. In the eyes of many people, time is not mysterious, because we are moving under the influence of time all the time.

However, in the eyes of scientists, time may be the most mysterious thing in the universe. Scientists have already begun exploring and researching space, and they have already made some achievements. But for time, we have no way to start, we can see in space, and we can verify something through some experiments. But time, we can’t see, touch, and we can’t prove anything through experiments.

Someone might say, isn’t the seconds, hours, and days we’re currently in contact with time? In fact, this kind of time is only defined by human beings. There are 24 hours a day, 60 seconds in an hour, etc. These are just human-defined time for convenience and better survival. If there are many alien civilizations in the universe, then each civilization may have a different definition of time.

Let me ask, different civilizations define time differently. Which one is the real time essence of the universe? We may think that the time defined by alien civilization is wrong, and the time defined by mankind is the truth of the universe. But for the same reason, extraterrestrial civilizations also believe that the time they define is the essence of time, and that the time defined by humans is wrong.

Everyone thinks that their definition of time is correct, and that it is the essence of cosmic time, which is a manifestation of subjective consciousness. If we look at it from an objective perspective, it is possible that the time defined by these intelligent civilizations is wrong, and none of them is the essence of cosmic time. So what exactly is time? Regarding this question, as early as after Einstein put forward the theory of relativity, he also gave a guess of his own.

Einstein believed that time may not exist at all, everything is human memory at work, it is memory that deceives us. Humans’ perception of the outside world relies on various external organs for collection and analysis, and then feeds back to us through the brain’s memory. We believe that time exists, time exists in the past, the present and the future may be a manifestation of brain memory.

So is time really just an illusory existence? In fact, with the continuous development of human technology and the continuous improvement of the cognition of the universe, more scientists still believe that time is a real thing. However, the nature of the universe time is defined by humans, and the time in cognition may have The essential difference. Time may exist, but the human definition of time may also be wrong.

Especially after modern scientists put forward string theory, we have another dimensional understanding of the universe. According to string theory, the universe is a multidimensional existence. The place where we live is a three-dimensional space. The so-called three-dimensional space is a three-dimensional space structure consisting of only length, width and height. In three-dimensional space, time is unmeasurable, so we cannot prove the existence of time.

The space above the three dimensions is a four-dimensional space, and the four-dimensional space adds the dimension of time to the three-dimensional basis. So in four-dimensional space, time is a quantity that can be seen and measured. It is the length, width and height in our three-dimensional space, which can be measured in detail. Therefore, in the four-dimensional space, since time has become a dimension that composes the spatial structure, time is real.

From this, we can boldly guess that in the four-dimensional space, the past, present and future may exist at the same time. They are like playing a movie in a three-dimensional space, and they can see the past, present and future of a person at the same time. It is precisely because three-dimensional space time is invisible and unmeasurable, so although we can feel the existence of time, we cannot really study and explore.

The space-time we often mention is actually the combination of time and space. Since we are in a three-dimensional universe, we can only see the spatial characteristics and structure of space-time. Although Einstein’s theory of relativity is also a theory for exploring the mysteries of time and space, it mainly explores the mysteries of space. In fact, as long as we can uncover the mysteries of space, we are the gods of the three-dimensional universe.

In the three-dimensional universe, space is the supreme law, which allows us to move freely in all corners of the universe. For example, the space jump in the conjecture of scientists, the shuttle of wormholes is an application of space, breaking the space to achieve faster than the speed of light flight. To realize the ascension, from the three-dimensional to the four-dimensional or higher-dimensional space, we need to have a certain understanding of the mystery of time.

Although in the three-dimensional world, time is a mysterious and undetectable existence, the power of science is infinite. Neither space nor time can escape the scope of science and cannot override science. Therefore, as long as human technology can develop rapidly, we believe that in the future we will be able to touch the essence of time. Even in the three-dimensional universe, we can The mystery of time can also be explored through the power of technology.

Of course, it may not be possible to truly understand time in a three-dimensional space. Only after entering a four-dimensional space, where time is a visual existence, maybe we can truly understand the essence of time at that time. In a three-dimensional space, we only need to be able to apply time initially to realize time travel.

Of course, to achieve such a goal is still too far away for mankind, we have not even figured out the mystery of space, and the complexity of time far exceeds space. Therefore, as long as we become a powerful interstellar civilization in the universe and can cross the universe, it may be possible to explore the mysteries of time, and then enter a higher dimension through the power of time. We look forward to this day.