>>43, has a point there. When matter is shifted how does that shift effect each time/space differentially? I would guess that the gravity constant of the universe would be effected in both, however, I also think that this happens anyways when people are burned and turned to ash. And remember, energy can not be destroyed only converted or moved and technically it is moving from one point to another; think about the vastness of space and the size of a human body and even a ship! The dramatic change in density may cause a quantum black hole about the size of a thumbnail (just guessing though). It would depend upon the speed at which you left this time/space and arrive at the next, because like it or not you're leaving one place and entering another and taking from one and adding to another. The changes may or may not be significant in overall effectiveness, meaning that by leaving this space the universe wouldn't collapse in on itself due to ex talionis the law of retaliation, what energy leaves is what difference will be effected. So, at most you may find some minor changes, but would those changes be observable amidst the vastness of already occuring events? Would the change be singular or dispersed due to the abscence of matter? It's very unlikely we would not notice a thing except that the person was no longer in this time.
And with finishing that guess, I would possit that even if that person went back in time and began to change things we in the present wouldn't witness any changes at all due to already occuring events and that these events of the past would only be recognized by the people of the present as having already occured in the past. What makes it even more disturbing is that some people aren't even able to distinguish imagination from reality just like some people here are thinking that I am talking about something realistic when I'm just spouting off the top of my imagination. So really, who is the one who's deluded? Who is the one who believes me to be speaking of reality? All the words on this entire forum are ideas anyway, whether the person posting is utilizing their own ideas or someone elses as a source, they're still ideas!!! :P If I really wanted to be a dick about it like RedCream I would order you to display proof, but because I don't want to prove people's ideas are wrong before they're even beginning to sprout