After I saw the movie Interstellar last week, I checked out a book called
The Science of Interstellar by Kip Thorne, who was a consultant and executive producer. Interesting book. Mediocre movie.
"You know, Chris also considered traveling through space faster than the speed of light as 'non negotiable' back then, and that’s something that was changed and is not in the final film. He used that phrase in our brainstorms, but in the end after in-depth discussions he came around. We’d always find some way to make things work together, though in this one instance of faster-than-light travel I gave him a series of reasons why we were quite certain the laws of physics prevented it."
