Time Travel Part Three

Taylor obviously has a good point with his assumption that the law of conversation of matter would prevent any instantaneous transportation, including any which may be related to time travel. However, I'd like to point a few things out:

Time travel implies that such movement through time is not done instantaneously. Just as when we travel on a road trip, we have to move through space to get there, thereby avoiding the creation of any vacuums (space where there is no matter, not even air). If we make the same assumption about time travel, it would be easier to think that time travel is more like rewinding oneself backwards through time, with no physical changes made to oneself.

So in that sense, it might be possible to time travel without violating the conservation of matter.

But on the Superman point, I agree completely with Taylor.

I just want to add something onto my original assertion as to why time travel wouldn't be possible (the you from the past wouldn't have anything to go back and change if the current you changed it). I think the only way it would be possible to time travel without getting tangled into that paradox is to travel back through time with no intention of changing anything in particular. You go back, and you change something random. Or at least have that be your intention until you arrive at your destination time. Of course, this causes problems because in every repetition of this scenario, you random change is something else. So it becomes a loop. Have fun thinking about that.