Can one transcend time and space to the future or go back to the past?

Faster than light can also not go back to the past – it is impossible for humanity to go back to the past".

The unidirectional nature of time – it is impossible for humans to go back to the past".

Time can be fast or slow, but it can't be reversed.

Time is one-dimensional and unidirectional—that is, time can be fast or slow, but cannot be reversed." Since it is "a measure of a physical process", then the physical process itself is not repeatable (the repetition in physics is actually just the repetition of physical phenomena, that is, there are no two physical processes in the universe that are exactly the same), then the time to "record and describe" a physical process - "a measure of a physical process" - is also non-repeatable.

It's like: we say a word, and then we repeat it again; On the surface, it seems that we are repeating, but everyone understands that there is a process before and after; In the same way, when we repeat it, it is as if we have returned to the moment when "just now", but a process has already taken place - "time moves forward in one direction in one dimension - that is, time can be fast or slow, but not backward".

Therefore, "time is one-dimensional and unidirectional—that is, time can be fast or slow, but cannot go backwards", and people cannot go back to the past. Human beings can only use and utilize the principle that "time can be fast or slow".

Human beings use and use the principle of "time can be fast or slow", which can be manifested in: speed up their own time, or slow down their time; But when man has quickened his time, he may move from one time course to another, but not backward; In the same way, when a person slows down his time, he can move from one time course to another, but not backwards.

You can also look at Stephen Hawking's A Brief History of Time, which proposes that we fold space through "wormholes" in the universe.

There is also the famous grandmother theory.

Even if you go back in time, it is impossible to change history.

According to Einstein's theory of relativity, it is impossible for us to go back to the past, at most it can only be a reproduction of the past scene, but for any object that has been changed, it is impossible to go back to the past, so for a person, even if you see the past scene, then your age will not change.

High-speed flight can be approximated to the future, for example, if you fly for 1 year, the earth for 1000 years, this has to calculate the velocity, I don't remember that formula, look at the theory of relativity.

It is impossible to go back to the past in practice at this stage, and the theory has not been confirmed, and the theory tends not to go back to the past.

It doesn't seem to be a biological problem, is it a non-mainstream life science topic or physics?

OK. The odds are slim, 5 million times smaller than winning the 5 million lottery jackpot, and if you're not a super, super, super, super, super lucky person, or a super, super, super, super, super unlucky guy, don't plan it.

Theoretically, it is possible to move faster than the speed of light, but....Reality beyond the speed of light is impossible....

Can't change. Because when you travel back in time, you're just a spectator and you can't participate in it. For example, if you want to do something, you can't do it for various reasons.

The factor that makes up the space you were originally in is history, and if history changes, your original space will disappear and be replaced by another space, and there will be no you in this space because you have disappeared.

Theoretically, it will definitely affect the present, because the butterfly effect does exist, and if it can really travel back, it may be possible to change a small thing to change the future.

Yes, it doesn't affect the present. Because if you go back in time and want to change time, time will have an extra tributary. It's another parallel universe.

Of course not, because it is impossible to travel back in time, so it is impossible to affect the present at all.

It will have a direct impact on the present, because the conditions in the past are certainly not as good as now, and the economy is not as good as the current development, so it will have a great impact on one's own life.

If it can be achieved in theory, then there will be changes in real life, which will affect what has already happened.

If I could travel back in time, I would go back to when I was a child. I was about 10 years old, and I was really happy at that time. In fact, this is impossible, how can people travel back. Let's make a hypothesis.

If I could go back in time, the first age I would choose to revisit would be when I was born. Everything was fresh then and I was completely innocent. I was ignorant of the pain and suffering of this world, and I was surrounded by people who loved me unconditionally.

It's a time of innocence and happiness that I would love to live again. If possible, the second age I choose to revisit will be when my parents are not gone. I want to go back to them, I want to know how they raised me, I lost them before I grew up, I want to go back in time and start over and let them know that I love them.

If I could travel back in time, I would like to go back to the age before I broke up with my first love. First love is a very good time, although sometimes there are some small contradictions, but overall it is still very happy, at that time we were still very much in love, and we can be together every day, it is so happy, if I go back to that age, I will cherish our love even more, and will not let anything ruin our happiness again.

If I could travel back in time, I would like to go back to the time when I missed the opportunity. I always miss opportunities, for example, when I am reading, I always think about other things instead of concentrating on reading. Or when I'm with my friends, I'm always thinking about my own things instead of communicating with them.

I want to go back in time and make good use of them when I still have the chance.

Many people have endless yearning for the idea of going back in time, but when you actually go back in time, you find that you don't want to go back to that age so much. Because at that age, you must not be mature enough to know how to face many things. So, when you really want to go back to the old age, it must be the age at which you have matured.

If you have a choice, most people are willing to go back to when they were children, life is always full of regrets, if we can travel through the past, what age will we return to ourselves, maybe we will go back to that age and meet better opportunities, maybe we will go back to that age and encounter more regrets.

Hello, it is my pleasure to serve you and give you the following answer: the possibility of changing age through time and space is extremely small, because it requires changing the genetic structure of human beings, which is an extremely complex process. However, there are ways to change human age, such as anti-aging technology, genetics, and drugs.

First of all, anti-aging technology can help people resist aging, prolong life, and reduce the symptoms of aging. This technique can change the age of the human body by altering the hormone water hail difference in the human body. Secondly, genetics can help people change their genetic structure and thus their age.

This technique can change the age of a human body by altering the genetic structure within the human body. Finally, medications** can help people change their age. This technique can change the age of the body's source band by altering the hormone levels in the body.

In short, the possibility of changing age through time and space is extremely small, however, people can change their age through anti-aging technology, genetics** and drug treatment. Personal tip: If you want to change your age, the first thing you need to do is to maintain a healthy lifestyle, such as eating more fruits and vegetables, exercising more, eating less junk food, drinking more water, drinking less alcohol, etc.

Summary. At present, there is no way for humans to change their age through time and space, and there is no relevant scientific research to show that this can be achieved. However, with the development of science and technology, there may be more discoveries in the future, so as to realize the possibility of changing age through time and space.

For example, in the future, humans may be able to change a person's age by developing technology that can do time travel. In addition, the development of new technologies such as molecular biology and nanotechnology also makes it possible to realize the possibility of changing age through time and space in the future.

Fellow, I really didn't understand, I can be more specific.

At present, there is no way for humans to change their age through time and space, and there is no relevant scientific research to show that this can be achieved. However, with the development of science and technology, there may be more discoveries in the future, and the possibility of changing the age through time and space may be realized. For example, in the future, humans will be able to change a person's age by developing technology that can travel time.

In addition, the development of new technologies such as molecular biology and nanotechnology also makes it possible to realize the possibility of changing age through time and space in the future.

Physics is good

But I'll tell you beforehand, even if you can travel back in time, you can only go to the future, not to the past

To give you a simple example, for example, you've created a space-time tunnel that you can go back into.

Well, I ask you to think about such a slightly crazy question. You go back in time and shoot yourself 1 minute ago. What will be the result?

Obviously, this is a paradox. This assumption is contrary to the laws of nature, so it cannot be true. That is, it is impossible to go back in time.

Then in addition, I think it is very possible in the future.

First of all, you have to be clear that there is a rule in physics that the speed of light is the fastest speed in nature. It can't be surpassed.

Well, I'll give you one more hypothesis.

There was a round-the-world train that was traveling at nearly the speed of light. And you're on the train, so we know when we're in junior high school that people at this time will have the same speed as the train

Okay, so that's the point, what happens if you run fast on the train? Your speed plus the speed of the train -- of course, you can't go faster than the speed of light, so nature slows you down in order to stop you. Other words.

Your speed will slow down.

Okay, I think I made it clear here. As long as you stay on the train, time will be much slower than the outside world, so when the train travels at the speed of light for 100 years, and for you on the train, only about a month has passed, because your speed is slowed down

Well, so much hard work, hope to solve your problem!

Then you have to go faster than the speed of light to go back in time, and going to the future is against science. Even if you go to history, you can only see the images of what has happened, and you can't influence anything, so learn physics well.