I was just thinking about this.  Let’s say I wanted to travel back to, just to name a historical event for the sake of the question, 9/11/01 in NYC.  Would I end up IN New York City, or would I just be in San Antonio in 2001?  I guess I’m asking if time machines cover space as well as time.  Would I be on the hook for finding a way to get where I want to be as soon as I get back in time?  Anyone know?