What is the most feasible way to go back in time , and what does it take?

Time goes back, the most needed condition is time stops, only time stops first, there will be the possibility of going back, but this is all a fool's dream, time can not stop, let alone go back, the only thing we can do is to grasp the moment, happiness is already there.

If you want to go back in time, it's actually very simple, as long as you can build a stable wormhole, you can cross time and space, but it's basically impossible, and I don't know if it's really possible.

With today's technology, there is no way to go back in time. According to the folk saying, it is you who exceed the speed of light. Beyond space and time.

The most feasible words are dreaming. Ha ha.

This is a very esoteric question.

First, to determine the properties of the answer, does it need to be theoretically feasible or practical?

If it were theoretically possible, time could be turned back, provided that you had enough lifespans for a tool faster than the speed of light to appear in the world.

From a practical point of view, there is no way to achieve this, or there is no way for humans to experience turning back time, because even if tools appear faster than the speed of light, human beings will be reduced to fragments in the process of faster than the speed of light.

The meaning of going back in time is generally to travel to the past and change some things, so it has a strong purpose and a clear expectation of benefits. Again, this needs to be done with tools that exceed the speed of light.

But there will be a problem here, when time is going backwards, defined as all matter is going backwards, and obscuring can go back to the past, even if we don't discuss the factors that can change the past, there will be another problem at the same time, that is, whether the tool that exceeds the speed of light will also regress from a tool to a bunch of unassembled parts, and then to a bunch of elements in the process of regressing time, so that it is a complete time regression, and the rewind of time should be oriented to the matter that affects all the four-dimensional environments. There is no such thing as everything going backwards and the time machine is getting old.

Technology has not yet been able to solve this problem.

Secondly, it depends on whether your question is necessary, such as going back in time, whether it is beneficial to human beings, and whether it is in line with the cost.

If there is a tool that exceeds the speed of light, it is generally used for interstellar travel, but in fact, star travel does not necessarily have to reach the speed of light technically, but can be assisted by a black hole to exceed the speed of light, or even the speed of light does not need time, because the black hole may be a shortcut, the shortcut means that even if you run 1000 meters from 60 seconds to 30 seconds, you need to complete a full 1000 meters, this is a stupid method, but a black hole can provide a shortcut of 10 meters, You may walk slowly 10 meters from the starting point to reach the end of the 1000 meters.

Therefore, the premise of going back in time - beyond the speed of light, is currently intended to be achieved theoretically, after a long period of development, but it does not necessarily need to appear, and if it appears, it may not achieve the desired result, and the cost is very high.

So the subject should go to bed early and get up early.

There are two ways to do this:

1. Dreaming, in which you can go back to the past.

2. According to the theory of relativity, when your speed of motion is equal to the speed of light, you can stop time, and if you are greater than the speed of light, you can go back in time.

There was once a love in front of me that I didn't cherish, if I could turn back time, I would say to that girl I love you, the period is 10,000 years. But there is no regret medicine in the world.

Yes, when you can accelerate the speed of space by more than light-years, you can turn back time, but then you may also become micromolecules.

Sorry, no!

Because you use the hypothetical method, if there is a time-lapse method, then in 1000 years someone will come back and say hello to you, such as your grandson's grandson. The grandson will come back to see you and take a picture with you. And send you a robot cat to play with you.

But in fact there is none.

Then conclusions can be drawn. Time cannot be turned back. Or that there can't be such a thing as a time machine.

There is no way but to cherish time.

Sleep can make your dreams come true.

I want to think about this question... Dream!

The method of going back in time exists in theory, but according to the calculation, each coordinate is an irrational number at this time, that is, there is a strong oscillation of time and space, which causes instability in time and space, and the transmission cannot be completed, so time reversal cannot be realized.

Timelapse Theory Explained.

In his "Special Theory of Relativity", Albert Einstein explained a "singular" world in this way: the universe we live in can be seen as a four-dimensional space-time, and as the speed of object motion increases, the flow of time will slow down, and the scale of space will be shortened. In 1915, Albert Einstein further proposed his theory of gravity, called "General Relativity".

2. Also in this "singular" world, under the action of massive objects (i.e., strong gravitational fields), the structure of space-time will bend, and the flow of time will also slow down. Four-dimensional time can be bent like three-dimensional space.

Frank J Tipler of Tulane University in the United States calculated that a massive and infinitely long cylinder, if it rotates at nearly the speed of light along its axis, allows astronauts to visit his own past; In the same way, this is dragging the ray around the axis to close the curve.

Richard Gott of Princeton University in the United States said that cosmic strings (cosmologists believe that this structure was formed at the beginning of the universe) can cause similar results. Scientists have found that when a spacecraft passes through the gravitational field, the pull of the gravitational field is converted into thrust, and the spacecraft can fly at the speed of light or even beyond the speed of light during that time.

5. The gist of it is: with the help of the elasticity of electromagnetism, gravity, the speed of light and the co-evolution of time and space, it can span time in an instant. However, even if it is possible to exceed the speed of light, the special theory of relativity also mentions that the faster the object moves, the shorter the length becomes, the closer it is to the speed of light, the more significant it becomes, which is called "Lorentz contraction"; The "general theory of relativity" also mentions that the vicinity of the approaching singularity is affected by a strong tidal gravitational field.

Hello dear! When I grew up, I always liked to reminisce about the past, and I would constantly sigh how nice it would be if time could be turned back, and I imagined countless times that I had traveled to the past and done something to make up for my regrets.

1. Go back to 14 years old.

When I was a child, my cat Huanhuan was my best playmate. Every time I call it by name, it immediately runs up to me. When it first came to my house, it was a kitten, and then as time went by, it grew up and I grew up.

When I got to junior high school, I started living on campus and rarely went home. When I was 14 years old, I came home from school vacation, and I couldn't find it, so I asked my mother if it went. Mom was sad to tell me that it had gone to the cat.

It's old, it's immobile lately, and it's been lying on its stomach next to my shoes on the day it was dying, as if waiting for me to come back. I blame myself for not being with it in the end, every time I think of it, I regret it, if I can go back to this year, I want to give it a hug and let it have no regrets.

2. Back to 18 years old.

At the age of 18, he failed the college entrance examination and was not admitted to his ideal school. At that time, I didn't know what to think, so I didn't want to repeat it, so I resolutely chose a random university to study. A few years of college time passed in a blink of an eye, and I worked directly after graduation, but after working, I realized how important a good university is.

After experiencing the experience of society, I regret more and more, why didn't I repeat it in the first place, if it wasn't for my own insistence, I might not be so hard now.

3. Back to 22 years old.

Grandma loves me the most, and every time something delicious is left for me. She is kind and simple, and always warms me with her love. But at the age of 22, my grandmother passed away, and she left me forever.

I couldn't accept this fact and collapsed for a long time. If I can go back to this year, I hope to accompany my grandmother more, I can make more delicious food for my grandmother, I want to take my grandmother to see the great landscapes of the motherland, and I will tell my grandmother every day that I love her.

Time is gone, and once you miss something, you never get a chance to make up for it. Therefore, we must cherish the people in front of us, cherish the things in front of us, and don't let ourselves always have regrets.

The sky is beautiful.

Love.

—Mu Xin, "Once Upon a Time".

I remember when I was a teenager earlier.

Everyone is sincere.

Say a word is a sentence.

Early morning train station.

The long street is dark and free of pedestrians.

The small shop selling soy milk is steaming hot.

The old days have slowed down.

Cars, horses, and mail are slow.

There is only enough to love one person in a lifetime, laughing brother Jane.

The old lock is beautiful, too.

The keys are beautifully presented.

If you lock it, people will understand.

Mu Xin was born in 1927 in Dongzha, Wuzhen, Tongxiang, Zhejiang. His real name is Sun Pu, the word Yangchen Yinzhong, the number Mu Xin, and the pen name Mu Xin. Graduated from Shanghai Academy of Fine Arts.

He settled in New York in 1982. He died at 3 o'clock on December 21, 2011 in his hometown of Wuzhen at the age of 84.

He is a master of contemporary Chinese literature and a painter, and is regarded as an elite and legendary figure in the Chinese community in Taiwan and New York. He has published several books.