IMO, the Frame Shift Drive is shifting your frame of reference using quantum physics. The way I understand it, in quantum physics, something can disappear and then reappear in another location. If you could synchronize a "frame" around a ship, you could instantaneously jump a distance. Doing this repeatedly would get you moving faster then light without physically moving faster then light.
Thoughts?
.. I had to register just to post to this thread as I've been reading it the past couple days. lol.
What you're talking about is quantum tunnelling. Kind of. See, when not observed, a particle's position is not definite--it's a probability function. And that's not just us not knowing where it is, it is
literally a probability function. And that function drops off dramatically quickly, but there is a negligible but nonzero chance of the particle being a foot away from where you most expect to find it. Or a mile. Or a lightyear. And if one particle can do it, there's a nonzero chance of any number of particles doing it.
So, yes, there is a nonzero chance of a baseball or a cat or a spaceship to suddenly find itself at alpha centauri, faster than light would have taken it. But technically speaking, that would not be described as an object going from point A to point B. It would be better described as the discovery that the object was at point B the entire time.
Keep in mind the nature of these quantum events necessitate that they cannot be controlled. If we discover they can, it would mean that quantum information can be directly converted to classical information. And all of modern physics would be thrown out the window.