Hey guys, I have what I'm sure is a very simple question that I can't seem to find a simple answer to. I'm wondering what the ratio of time passage is between someone traveling at X times the speed of light versus someone on the surface of a planet. Say for a scenario I was traveling at 10 times the speed of light for three weeks, how much time would pass on earth? This is all purely science fiction and I'm not needing to get into the whole conversation of whether faster than light travel is possible. I'm merely interested in the ratio of time traveled. I'd appreciate it if you kept this simple, I'm not much of a physicist, merely an artist/writer. So if equations are needed, please explain them. Thanks in advance.