Traveling through time and space to return to the past or to the future is the dream of many people.
How can we travel through time and space? Wormholes may be the best and most direct choice. Scientists believe that one day in the future humans can create wormholes for traveling time and space.
So what exactly is connected to the other end of the wormhole?
At present, we don’t know that it may be a very dangerous place, or even another universe, with completely different laws of nature. Once we enter such a world, we may die in an instant.
However, we don’t have to worry about this. Even if humans can create a wormhole one day in the future, or accidentally discover a ready-made wormhole in the universe, they will definitely not directly send someone to find out. First, they will launch the detector, explore the specific situation inside the black hole through the detector, and then make a decision.
So, can humans create wormholes?
can indeed do it in theory. Scientists believe that in curved space-time, tiny wormholes are likely to exist in tiny space-time gaps, and quantum mechanics also shows this.
However, because the wormhole is too small, its size is even much smaller than the atomic nucleus , and it basically has no practicality, and even atomic is difficult to travel through.
However, at least scientists know that wormholes can indeed exist, and what we need to do is how to make the wormhole bigger.
If one day in the future, does it mean that humans can achieve time-travelling time?
It is indeed possible in theory. We can instantly travel through wormholes to any distant galaxy, just like the storylines that often appear in science fiction movies.
If humans can travel through time and space through wormholes, does it mean that we can go back to the past and then change history?
Change history. Many people's first reaction will think of the grandfather paradox. You go back to the past and kill your grandfather, so that your father will not exist, and you will naturally not be able to exist, and of course it is impossible to travel through time and space. But in fact, you have traveled through time and space.
The fact is that since nature allows you to travel through time and space, it must have its own set of natural laws to avoid the emergence of the grandfather's paradox. No matter what method is used, you cannot change history and affect the future historical development process. We do not know how
can avoid the emergence of the grandfather paradox at present. Scientists have many speculations, so I will not explain it in detail here.
So, if someone knocks on the door one day in the future and claims to be your great-great-great-grandson, please don’t have experience, and don’t turn it out directly, because it is likely that he will complete time and space through a wormhole and return to the past and come to you!
