Quote:
Originally Posted by Javed
The clip describes the theory of increasing speed causing the slowing of time. 
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Great video.
We know that astronauts in our day have already traveled through time. Only microseconds, to be sure, but the time dilation experienced by lunar astronauts away from the earth's gravitational field (which also causes distortions of time), and the distance into the future they have traveled, is measurable.
To date, the only person I know of to successfully travel is a reverse direction through time is Superman, who does it by traveling faster than light in a counter-clockwise direction around the earth. For the rest of us (to date anyway) time seems to be a one-way journey.
As I understand it, events on the quantum scale are not subject to the limitations of time's arrow, and may explain such mysteries as quantum entanglement, in which information gives the appearance of violating the limitations of light speed. Particles moving in a reverse direction through time may even account for antimatter. Anti-particles may simply be normal particles traveling is a reverse direction through time, and what appears to us as the annihilation of each in particle/anti-particle collisions may be simply one and the same particle reversing its direction through time.