All right, I know that time travel is confusing for a lot of people. Hell, I'm a Time Lord with a doctorate in chronodisplacement theory, and it still gives me headaches. I can, however, help with two simple guidelines. 1: History can be changed. 2: Your own personal timeline cannot be changed. Those are more or less the two main rules of time travel. Now, people ask me all the time, why not just stop Hitler, or why not just stop whoever the big bad guy in their universe is. It's not that simple... read more