Is it possible to travel back in time?

The famous Havel Crossroads will once again cross the detonating network. Many people want to be able to go back in time, to realize the ability to go back to the future or even the past, and it is precisely because everyone has such illusions that people once again believe that the events of Havel are real. So, does time travel really exist from a scientific point of view?

Am I traveling through time? If one day you wake up and suddenly everything around you disappears. You're the only one on the planet who survives, you look at your phone and it's frozen in 2027, and everyone thinks it's time travel.

This is known in Spain as Javier 2027.

How to explain Javier's time travel? Can we really go back in time? Actually, if a person tells me that he is from the future, then I will definitely not believe it, so logically this matter should not ferment on the Internet, but become more and more popular.

But Javier did something incredible, he did it at home, you wouldn't believe it, because at home, anyone can do it. Elaborate but Havel is followed by a series of holy operations that make us have to believe that catching a sports car on the street and driving away, for example, going to the police station, the airport, the station, and even the hospital, these places are outside without anyone, like all disappear, and more refined to think that the fear is that all the machines will also be able to work as usual.

You may think of parallel universes, or even those here, but in a very simple way, Javier goes to the bank to withdraw money in his own time, and what happens in his own time can have an impact on reality. Surprisingly, the bank had no idea who had taken the money, as if the money had disappeared out of thin air. To put it simply, the time and space in which Havel lived, what he did, seemed to change our world, but what happened in our world, did not change the space in which he lived.

Some people wonder if Javier is in a four-dimensional or even five-dimensional space above space!

Worm Hill Then, after a series of **, bugs began to appear. His fans noticed that there were obvious traces of manipulation in **, which meant that the hospital was not empty, but was digitally deleted. The universe has the ability to process and deal with **, but completely handle everyone or anything in **, and the universe has no way to do that.

It cannot be realized, this is because science has not reached such a level and point at present, it is impossible to go back to the past, there is no scientific basis, there is no implementability.

I don't think it's possible, because going back in time, you have to travel faster than the speed of light, and the body can't withstand the speed of light at all.

Of course not. Because science in our country has not yet developed to that extent, and this kind of technology is impossible to achieve in the first place, it is unethical.

From the point of view of today's mainstream science, time travel is impossible, nature does not allow time to go back to the past, which can avoid suffering from paradoxes, time that has passed will be frozen, and even if you pass some means, such as entering a higher dimension, you can only witness the past history, and cannot change it, you cannot touch it.

Time travel also violates the law of conservation of energy, to give a simple example: if the future you use the time machine to return to the present, then a future you suddenly appears in this world, which is equivalent to an extra you out of thin air, which does not conform to the law of conservation of energy.

Time travel also gives rise to paradoxes, often referred to as the grandmother's paradox. Suppose a person in the future society travels back in time and kills his grandmother, then he should not appear again, and if he does not appear again, then who will kill his grandmother? This is the paradox of time travel.

One day in June 2009, Hawking suddenly had a whimsical idea to hold a banquet attended by time travelers, in order to keep it secret, Hawking only posted an invitation on the Internet on the day of the banquet, so people in reality will not know the news to come to the banquet, Hawking arranged it means that Hawking posted an invitation on the Internet, although people will not see the invitation on the day, but the next day someone will know, and it will become a news, then people in the future will definitely know about it, If they could travel in time, they would come to the banquet through time travel.

Obviously, no one came to the banquet. It is possible to go back in time, although it is possible mathematically, but it is not possible physically. However, it is possible to go to the future, either by increasing the speed or by being in a strong gravitational field, because both of these methods will lead to time dilation, and thus go to the future in disguise.

Let's say you're piloting a spaceship that is moving at the speed of light, and you've been on the spaceship for an hour, and maybe when you come back to Earth, ten years have passed on Earth, and it looks like you've traveled to the future.

In the movie "Interstellar", Cooper travels to a planet close to the black hole, where time passes more slowly than outside due to the strong gravitational field, and Cooper stays on the planet for 2 hours, and more than ten years have passed since the outside world.

Summary: It's not okay to go back in time in mainstream science, but it's possible to travel to the future in disguise.

Liberal Arts Dockyard.

I don't think time travel is possible. We can't change the laws of time, and therefore, we can't go back in time to change what happened in the past. If you can travel through time at will, the world is likely to become chaotic.

Time travel is theoretically achievable, and it is also possible to go back in time, which is based on space-time wormholes, and through the principle of time warping, space deformation and time reset can be realized.

It is not feasible to go back to the past. But some people use the parallel universe theory to explain it, that is, when you go back to the past, you in this world disappear, and when you go back, two selves appear. The moment you go back, another parallel universe is created, the two universes develop independently, and the original universe runs the same way without you, and history has not changed.

The universe you go back to has changed history because of your return, moving along another path, but with no effect on the universe you left from.

Time travel, I think such a possibility is not realizable, because the past time is already in the past, the earth is also a normal trajectory, it is impossible to reverse, and it is simply impossible to go back to the past.

Time travel can be realized, is it feasible to go back to the past, in fact, travel through the past in another space, and then survive in another space, but I don't know if I can meet myself in another space, what it will be like.

It's completely achievable, because there's no grandmother paradox, and going back in time is a parallel universe that doesn't affect each other, and I really hope that day will come sooner, but it's going to be a one-way ticket, and it's just something you want to do.

If time travel can travel through history, how can people in the future not come to this moment? If it is really possible, modern people can go to ancient times to carry gold bars, find a daughter-in-law, go to the future world to become a professor, go to eat, and learn technology secretly! Even in ancient times, ...... to develop power stations, sell cars, build airplanes?

GTP, GTP has to burst ......

Only by remembering can we penetrate time!

Theoretically, you can go back to the past, but the past is difficult to change, because if the past is changed, then the future self does not exist, or whether you can travel smoothly in time and space is a problem. So going back to the past, we can only watch.

You can't go back to the past and change your past, you can only travel to the future, you can't change history.

Yes, if there is a day, you can go back in time, change your experience, and start over.

To the future. If you go back to the past, you will definitely change the present, then the present does not exist, and whatever you do in the future will not affect the present, and it is more likely to be realized.

To the future. Because the speed of light is difficult to surpass, and it is possible to travel to the future through cryonics, time travel to the future is more likely to be realized.

I think it's easier to go back in time because it's easier to go backwards on the timeline than to speed up.

If we observe photons moving at the speed of light in a vacuum, we may, or may see, how space-time exists. In order for the existence of space and time to be associated with photons, dark energy, and therefore repulsive gravitational attraction must, most likely, exist now. We know that when photons move in a vacuum, they move at the highest velocity possible.

Approximately 300 000 km s

If you're looking at the trajectory of a photon at the speed of light in a vacuum, every change in the size of the photon, or the absence of linear motion, means that something is probably moving faster than the speed of light. This is a true image of a photon moving at the speed of light in a vacuum in an electron microscope, so the speed of light in a vacuum is a photon. This is the first ever image of light being both a particle and a wave**, and by looking at the image of the photon in this article, is the photon moving forward in a straight line, or is it moving in the form of a wave?

Can you see that space and time exist periodically in photons? If you look at the individual blobs that you can see on the image, if you compare the left and right sides of the blobs, they look different.

To the left of the droplet, there may be swelling. This initial blob on the left expands outwards as a growing sphere. The center point of expansion moves along the photon at the speed of light in a vacuum.

It's like throwing a stone into the water, and you can see how the waves move outward from the center point, as if forming a circle.

It has to do with a photon moving at the speed of light in a vacuum, if it starts to expand outward into an expanding sphere that covers some object behind the child point, the object related to the photon must be moving faster than the speed of light.

Related to the photon is the expansion to the left of the droplet, which moves backward in time only when the expansion is in progress. When the expansion stops and turns to compression, time stops moving backward and starts moving forward, which is related to the speed of compression. What is relevant to photons is that it seems possible that some parts of the photons move backward and then forward again in a very short period of time before the time reversal.

This may be a placeholder for the so-called dark energy, which may show how dark energy works.

In principle, as long as the speed can meet the requirements, it is possible to go back to the past. Speed is not up to the mark.

OK. Time travel is the freedom to travel through time and space, and it's a lot of fun.

I think it's very likely. Because time travel is full of unknowns, I don't know which time and space I will go to.

To understand the answer to this question, you first need to subvert your view of time. First of all, you can't think of time as fluid, but as static. Time is like every frame on a film reel, it already exists.

There can be differences in our perception of time, so what we think of as the present may be in a different slice of time. It is possible to reach the future, and we can reach the future by approaching the black hole, and the strong gravitational pull slows down our time. But how do you go back in time?

Einstein deduced from physical equations that it is possible to go back in time through a wormhole, a substance, but the past you return to is just a slice of the flow of static time. You can go back in time through a wormhole, or you can kill your grandpa, of course, just someone you wishfully think is your grandpa. But that won't change now.

The flow of time will correct this deviation in a way, even if it is through illogical distortions. Of course, this is only a matter of physical theory, and there is no experiment to prove it. It has been philosophically suggested that if we could go back in time, there would certainly be a lot of people in the future who would come to our time and space.

Actually, it's not hard for you to understand this problem after you understand that time is static, because the past that they're going back to is just what they think is a slice of time in the past, and it's not necessarily related to the slice of time that we exist, just like if you erase a frame of the front of the film film, it won't affect the next frame. I recommend that you go to see The Composition of the Universe Part 4 Part 2 The Illusion of Time.