As i'm sure quite a few of us do, I'm fascinated with the idea of time travel, and I have elements of time distortion / fluctuation / time-stream repair, etc. to varying degrees in a lot of my stories. I kind of see these mainly as cameo appearances by my resident time-traveling character and his predecessors, but when I finally get around to writing HIS story, I worry that I might get lost in all the altered timelines and whatnot. I'm also curious to know everyone's opinion of things like cyclical time and self-fulfilling prophecies? If I ever get to this particular story, I'll definitely start with some kind of map or diagram to keep track of where he goes and what he changes (however intentional) - I'm just a little apprehensive about just how capable he should be of traveling through time, and whether or not I'll me able to maintain a concise plot that doesn't stray too far from the origin or split off into too many sub-plots, as I've noticed tends to happen with plenty of other time-travel stories. Anyways, what are your thoughts on the ethics and science of fictional time-travel? How would YOU allow a character or group of characters to go forward or backward in time, OR jump between timelines? If you were able to go back and change time, or go forward to acquire some piece of technology that would affect the present, would you?