Exploring the Possibilities of Time Travel Paradox's

[newontian]

If one of the problems with time travel is the paradox's it creates, if we take the multi-worlds theory into account where there are an infinite amount of universes and hence a infinite amount of possibilities why in one universe could there not be entropy be decreasing instead of increasing and instead of having reaction action rather action reaction, wouldn't this change everything dealing with the grandfather and mad scientist effect? And in turn changing everything

 

[zhermes]

In our universe, they're still issues. Hypothetical time-travel wouldn't move you from one universe to another either.

 

[dhillonv10]

Just something that may seem interesting to the OP: http://www.livescience.com/13253-large-hadron-collider-time-machine.html

 

[Sum1sGruj]

If time travel were indeed possible, we probably could not go into the past, but only the future. I see no real indication that shows that we can go backward, unless it includes us going to an alternate universe. In which case, that's really not time travel at all.

I think Hawking feels the same, actually, but I haven't stayed updated.