FTL is not the same thing as warping space in the same way that speeding is not the same thing as driving a Maserati. But if you can warp space at your will to

FTL is not the same thing as warping space in the same way that speeding is not the same thing as driving a Maserati. But if you can warp space at your will to give you the power to effectively get from point A to point B faster than a beam of light would, then you will also be able to construct "closed time-like loops", which will allow you to travel backwards in time.