In Star Trek , you warp space so you can go really fast. But they aren't too clear on how. But you have created faster than light travel within the confines of relativity. Yes, sort of. Well part of that is that is because most of these other shows were envisioned before string theory was popular.
String theory is a very recent development in physics.
We had the advantage of being able to play with that, which other shows couldn't do because the theory wasn't there. It's another way of doing things. We're not going to sit there and explain this stuff to death. One of my theories about showing science is that less is more. If we make our rules different from everyone else's rules, our show will feel different.