I'm afraid not all of this is entirely correct, to some degree.Actually, we humans do know the amount of energy it would take to rip a hole in the space-time continuum(using it to travel is something entirely different).It is the Plank Energy or 10-to the 19th power -billion electron volts.That is,charging an electron with that amount mentioned.That is roughly one quadrillion times the ammount of energy which would have been produced by the SSC supercollider which was going to be produced in Dallas.Unfortunately,it was canned.
We do not realy know what will happen if we could attain that energy, however.Negative energy is to missunderstood ,at the moment, to make it practical for FTL.Plus,nothing has been definitely theorized that negative energy could open wormholes.Negative energy has been theorized to alow time travel,however.Natural wormholes could exist,but they are subatomic in scale.The warp drive, such as in Star Trek, does not exactly work by using another dimension.It operates by actually warping the space around it.Think of it this way,think of yourself on a rug and you want to get to a table,so you use a rope and and pull yourself to the table. In the process, the rug folds together bringing you to the table.Wormholes do operate on a principle like unforgiven stated.But,this principle is related closely to SuperString theory.If superstrings turn out to be correct then the chances of wormholes grow as well.While superstrings predicts the exisence of 6 and sometimes 7 extra spatial dimensions unfortunately they are to small.They are at the Planck length which is ten to the exponet of 33cm.Thus,it would not be practical.Some have even theoized that wormholes could lead to other parts of the multiverse or even time.Multiple universes have since become a fairly credible theory(this would also fit right in with art director Mark Vearrier's idea of the Nephilim coming from the an aquatic like universe.This was stated by him in an preview of Prophecy by Next Generation magazine).
So when will we have FTL,I do not know.It is just so unpredictable.Probably not in the forseeable 200 years.But,who knows, we might discover a revolution which could give us this,or we could find that wormholes realy do not exist and that we are doomed to STL travel forever.
On a side note,I have studied quite a bit of physics,but if I'm wrong I'm sure Meson could correct me if he is still around
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