Is that a completely correct statement? I had a discussion with a co-worker the other day (while checking out a customer at a local grocery store lol) about the statement above. I firmly made the argument that nothing can travel faster than light with the exception of inflation and entanglement. I explained why using general relativity but he said i wasn't thinking of it the right way. My co-worker told me nothing can accelerate up to the speed of light however, nothing, as far as we know, can stop something from instantaneously traveling faster than light. I then asked him to name anything that is instantaneous. The conversation then ended. Oh and he also disagreed with me when I told him that as anything approaches the speed of light it becomes heavier, distances contract, and time slows down. This was unexpected. It was a nice discussion and I want to know what is right and which of the statements I've made are incorrect. I realize that I might be ignorant and that is okay. Because, it is only through discussions like this that I effectively learn. So please clear up everything that needs clearing up and Thank You.