A group of researchers from the University of British Columbia, as well as a number of other scientific organizations in Canada and the USA stated that the creation of a machine that allows travel in time is theoretically possible — at least from the point of view of mathematics.
Experts say that the theory of relativity does not preclude the creation of closed time-like curves, allowing you to return to the original point of space-time and, as a consequence, to “travel” to the past and future. Ability prostranstvenno-time continuum warp is explained, including such phenomena as the circular motion of the planets in orbit and the expected slowing of time near a black hole.
The researchers suggest that if “twisting” space-time in a certain way, to create the conditions for time travel possible. In General, scientists represent such processes as the motion at superluminal velocity along a closed curve. However, scholars recognize that neither accurately determine the necessary conditions, nor, especially, to understand how to achieve them, while it is probably impossible.
In reality, time travel is hardly achievable, not only because of the conclusions of scientists are purely theoretical, but because if such a machine invented in the future, the people of the indefinite future would be to visit and our time. In addition, the movement in time creates a number of paradoxes. For example, one can change the past so that in the new “present” he can’t go back in time and make the appropriate changes.