Is time travel feasible? Scientists put forward three kinds of conjectures. How long will we be able to achieve them?

Since ancient times, human beings are eager to leave the earth and go to the universe to see a broader world. Since mankind entered the era of science and technology, scientific and technological civilization has changed the fate of mankind. Now our flying dream has come true. We have gone to every corner of the world and stepped into the universe.

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We are not limited to the universe, we have a bigger goal, that is to travel through time and space. In many science fiction films, crossing time and space is a common artistic means. Many people think that it is very difficult to travel through time and space at the present level of human science and technology. After Einstein put forward the theory of relativity, there are more and more disputes about the travel of time and space in the scientific community. Theoretically speaking, it’s feasible to travel through time and space. Maybe in the future, human science and technology will change qualitatively. Then we may realize our dream of traveling through time and space. Scientists have proposed three feasible methods. Let’s take a look.

Speed.

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I believe everyone knows Einstein’s theory of relativity. As long as the object moves fast enough, the time acting on it will be slower and slower. However, all objects in the world can not exceed the speed of light, but as long as the speed of the spacecraft can be infinitely close to the speed of light, it is also feasible to realize space-time travel. Scientists have speculated that if the speed of the spaceship is infinitely close to the speed of light, it means that the spaceship will return to the earth after a day’s flight in the universe. 500 years have passed on the earth.

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Wormhole.

For human beings, the universe is always distant and strange. At present, the area of the universe detected by human beings has reached 93 billion light years. Although this number is very large, it is only a drop in the ocean for the whole universe. In the face of such a vast space, if we only explore at a speed close to the speed of light, we will always go to a limited place. The wormhole theory proposed by Einstein has been recognized by the scientific community. In the universe, wormhole is equivalent to space-time tunnel. If humans can find wormholes, they can go to another time and space in a short time, even to the future and the past.

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Human body freezing technology.

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The previous two conclusions are still in the theoretical stage. Even if space-time travel is really feasible, it will take at least tens of millions of years for human beings to make space-time travel. So scientists have come up with another bold idea that the use of human freezing technology may also be able to shuttle time and space. Human body freezing can reduce energy consumption to the greatest extent. If the technology is mature, it is likely to be close to zero consumption. At this time, time is meaningless for frozen people. Even if tens of millions of years have passed, as long as they can thaw successfully, frozen people will come back to life again, which can be regarded as a kind of crossing time and space.

However, at present, it is still in the theoretical stage to travel through time and space. If human beings want to go to another time and space, there is still a long way to go. But we should also pay attention to a series of problems caused by crossing time and space. If human beings can really go to the past and the future, it will certainly affect the normal order of the world and cause a chain effect. Therefore, the development of human civilization is hindered and long-term. What do you think?

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