I just rewatched the very cool Harold White space warp drive explanation that was featured on the latest Rogan. It's at 25:42 if you want to skip straight to it. The thing that I keep wondering is that if you are traveling at say warp 5, how do you ensure you don't smash into anything? The stoping distance at WARP5 has got to be spectacularly long, and I would have thought that across such large distances the chances of hiting something that is vaguely space ship sized must increase. #