According to Albert Einstein's theory of relativity, time can be completed or shortened depending on the relative speed of the observer.
In the film Back to The Future, dermal cars can function as a time engine because it is equipped with flux capacitor.
In fictional stories, time machines are often used to change the past and produce butterfly effects, such as small changes that can have a big impact in the future.
There is a theory that if someone travels time and meet himself, it can cause a time paradox that will threaten the safety of the universe.
According to the theory of relativity, if someone travels to the past and changes something, then the future produced will be different from what should have happened.
There are several theories about how the time machine can work, including through worm gates, through worm holes, or through gravity manipulation.
In the film Avengers: Endgame, the heroes traveled time to restore the stones taken by Thanos and changed the past.
In fictional stories, time journey is often used as a plot tool to reveal the secret of the character of the character or change the story plot dramatically.
Theory of time journey is often an interesting topic for scientific fiction scientists and fans, although there is no empirical evidence that shows that the journey of time is possible.
In the novel The Time Machine by H.G. Wells, the main character travels to the future and finds a very different world from what he knows, where humans have evolved into two different different groups.
