How do we know that faster than light travel results in time travel?

Question

I'm not educated in the ways of science, but this is one question that I'd like answered, preferably in a way I (we) can understand. 

I mean, according to Einstein, we CAN'T go faster than light, but if CERN is right, (and after throrough investigation...) then it IS possible. 
so...then.... HOW do we know, that faster than light travel results in time travelling? (instead of the traveller/neutrino just being faster than light?  )

Anonymous · Accepted Answer

It comes from Special Relativity. You can actually show that if you could travel faster than light, you would travel into the past. I remember reading about this in Modern Physics. 

It comes from the mathematics of Special Relativity and will only make sense if you take a class in physics.

Anonymous · Answer

Anything with a positive mass cannot reach the speed of light. However, there are things in the universe that have a "negative" mass, such as anti-matter. Even little is known about these substances, it is quite possible that they can travel faster than the speed of light. 

Now time travel...this is a hard concept to grasp. In space there are anywhere from 10-26 dimensions, but the only 4 we know of is length, height, width, and time. Time can actually be measured, and if sometime in the future we can figure out how to manipulate time, we could theoretically travel, or at least see into the future. (time travel to the past is impossible, due to paradoxes)

Anonymous · Answer

this may be a major breakthrough in physics which is under investigation.
It took many yeas for Einstein to formulate his Theory of Relativity, and it is going to take some time
to prove it, or disprove it.

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How do we know that faster than light travel results in time travel?

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