Is it impossible to turn back time? Can t you really turn back time?

No way! Scientists at the Chinese Academy of Sciences have made it clear that going back in time is impossible.

According to the theory of relativity, it is possible to rewind time, but due to the constraints of other laws, such as the laws of thermodynamics and the laws of entropy, time cannot be reversed at all!

Possibly, within the gravitational field of a black hole

The space around us can be reciprocated, and time flows in one direction, but around the black hole, because the gravitational field of the black hole is close to infinity, space and time are extremely distorted, causing time to be reversible, and space is one-way (it can only slowly fall to the center of the black hole, and there is no turning back, including light) But this is only a theoretical study, and it really can't be confirmed, at least not now, because firstly, people can't come back if they go, and they can't bring back any test results, and secondly, if the light goes in, it can't get out. It is also impossible to solve the problem by the information reflected back by the light

It is impossible, because no future man has ever come.

Impossible! Unless there is a way to borrow the quality of the fourth dimension!

Now human knowledge is based on the knowledge of predecessors, which is a theoretical system under a fixed model of human thinking, and what is the real world like? Who can tell! I often hear that because of the war, because of the famine, the economy and culture of a place have been set back for many years, but I don't know if this is a step backwards in time!

Furthermore, are humans moving forward according to their own prescribed time? I don't understand.

No way! Because the velocity of the object must be greater than c in order to be realized

And this is impossible.

It's possible. There's a lot of content, so take your time

It is possible to disagree with the premise of causality.

You really can't turn back the clock. Going back in time is from The Theory of Relativity, but it can't be realized. According to the law of different time in the same space in the "Theory of Relativity", as long as the same space is subjected to absolute force at different times, time and space travel will occur to another time.

According to the second law of thermodynamics, it is impossible to go back in time.

The essence of heat is the disordered motion of molecules, and according to the principle of entropy increase, we can know why other kinds of energy can be completely converted into heat, but heat cannot be completely converted into other kinds of energy. That's why you can't turn back time.

See the world from the point of view of entropyAnalyze the seeds of dandelions. In the beginning, the dandelion seeds are arranged in an umbrella shape, which is a highly ordered state, and when the dandelion seeds are scattered by the wind, they become disordered. It can be seen that the arrangement of matter is always more and more disordered.

For example, the flavor of a meal comes from molecules, and at first, all the molecules are in the pot, but after heating, the molecules spread outward and become more disordered, and this example shows that the degree of disorder is increasing.

If I could really turn back time, I still hope to go back to my childhood life, especially when I was in elementary school, I think that children at that time were the most carefree, there may not be so much pressure every day, and there will not be so many thoughts, life is simply simple and happy.

During the period from after school to before dark, if it is the sweet potato taro ripening season, a few good classmates will kiln sweet potato taro. However, everyone prefers kiln sweet potatoes to see whose sweet potatoes are ripe and begin to divide labor and cooperate. Go home and take a hoe, take the firewood to the ground, hoe the pieces of soil first, and the kitchen slowly turns into a brick kiln shape piece by piece, which is a test of patience and skill at the same time.

When it is thorough, each layer shrinks a little inside, like a pyramid, but the inside is empty, and there is a doorway to about the length and width of chopsticks. After the completion of the bamboo branches, leaves, straws, etc., stuffed into it, draw a match to light it, and then put in the firewood, the kitchen specially watched, from time to time to add firewood, until the clods of soil burned red.

During this period of firing the kiln, the little friend has dug the sweet potatoes, washed them by the stream, put them by the kiln, the kitchen threw the sweet potatoes into them one by one, and pushed down the soil with a hoe, and after about 20 minutes, took the hoe to remove the mud, and the fragrant sweet potatoes appeared in front of us. A partner who was anxious immediately picked up one, so hot that his right hand turned to his left hand and threw it in turn, but he still took a bite from time to time.

Cook rice, wash vegetables, boil water. The parents came home from work and started stir-frying, and after eating, the water was hot, and after taking a shower one by one, the brothers liked to listen to their parents' stories the most. Sometimes Dad would teach us to memorize Tang poems and Song lyrics. Many of the poets still remember and quote when writing articles.

On the other hand, today's primary school students have too much homework and no childhood fun at all. When I get home from school, I start doing homework, and I rarely have the opportunity to play with my classmates, and my parents are not idle, but I have to supervise and guide them. Friends Qingqing often complained to Xiao Chef that his child, who was considered an excellent student in the class, started to do homework when he came home from school, and sometimes did not finish it until 8 o'clock in the evening.

And during this time, Qingqing has to be by the side, and the child can only cook after he finishes cooking. Because the child is unconscious, if he walks away to do something else, the child will stop writing and play with toys. It will drag on even longer.

Qingqing couldn't understand why she shouted to reduce the burden every year, but the children's homework was getting more and more, and the schoolbags were getting heavier and heavier.

In terms of general possibility, it should not be, but since this statement exists, the answer is not necessarily absolute, it may just be that we have not seen it.