Originally posted by Kevin14
And yes you can go back in time.
According to the Second law of Thermodynamics, entropy must increase in all processes. In travelling backwards thru time entropy must decrease thus violating the 2nd law.
However, as Stephen Hawking has proposed, if one looks at spacetime and possible wormhole formation the folding or warping of space-time due to Einsteinian general relavistic gravitational effects theoretically may occur so that one end of a wormhole may fold into an earlier time in the continuum.
However this brings in the classical paradox about killing one's grandfather. So it may be able to travel thru the wormhole and then be somehow isolated from the earlier epoc so that the time traveller's interaction with that time is limited in scope. The mechanism of this theoretical isolation is not fully understood, although study of relationships involving xenon preclusion have shown recent promise.
So it may be possible, but probably not at our present level of technology. But if you could, you could then send a cybernetic organism of a robotic endoskeleton, covered with living tissue back to kill your enemies before they are trained. Then you could program it to run for public office and insidiously take control of the political system......yeah.. that would be an effective soldier.
