Time travel is impossible because to do this you would need to rewind the universe, and thats not TT thats literally reversing every atom, particle and space between atoms and GOD knows what else to a previous state. Everything exists at once and it is in a constant forward motion. Time is not a line, it is mearly a measurment of point A to B, you cant go back to A because it is, in fact now point C. So even reversing everything would still only take you forward.
Thats my view anyway. What yall gonna do bout that!
If you left Earth and entered a spacecraft capable at traveling at close to the speed of light, you would return to earth in the 'future' without having aged to any significant degree
Have you read the Forever War, by Joe Haldeman? It's basically exactly what you are talking about, and also one of the most awesome Sci-Fi books ever written.
THAT'S TOO MANY PEOPLE!!
Unless time works like how me and lazyone were saying. In which case, each person could travel back to an alternate past. For instance:
Jill could travel back in time to Ben Franklin. More precisely, she travels to an alternate past that is no different from the "actual" past except for the fact that she exists in it.
Bob then also travels back to Ben Franklin's time. He won't see Jill, because the past that he enters is no different except for his own presence.
So both people travel to the "same" time, but neither has to see each other.
More interestingly, Joe could travel to an alternate past where both Jill and Bob are present, even though Jill and Bob traveled to times where they are alone. This is because if there are infinite (or near infinite) instances of alternate times, then all eventualities are covered.
So basically your theory is that everyone travels to their own private past, like how a guy enters a private game of Diablo in a separate server? That's a less-chaotic way of putting it. Mine is a paradox lol
Have you read the Forever War, by Joe Haldeman? It's basically exactly what you are talking about, and also one of the most awesome Sci-Fi books ever written.
YES. I read that when I was about 13. It blew my tiny mind away. On a side note, don't you just love sci books? I mean seriously, lot's of literature snobs sniff their noses at it, but it's definitely one of the best genres out there.
Back to the point though, what I originally said is indeed possible. Time dilation has actually been observed. So long as we can make spaceships fast enough to travel near C, we should have no problem achieving it. Again, that is the direction time travel in theory will probably go. Going back to the past. I can't see it happening personally, but I suppose given some unkown materials and massive amounts of energy (nuclear fusion anyone) it could be possible. It still sounds a little crazy to me though. Then again, so does travelling to the future. Hmm. Lots to ponder.
It is possible. They actually sent a atomic clock several billionths of second in the future. Time is just another dimension. So you could, in theory, go from one time to another.
We are in fact going to the future in comparison to other parts of the universe. Because speed somehow (don't ask me how) influences time, and we (well a very big part of the universe) expands. And because of that (seeing as we are going a lot faster than other parts) we travel into the future compared to other parts.
If you went back in time, you'd just disappear out of existence. Like, if Barbie Time Travels back to see the Dinosaurs, she wouldn't be a doll no more. That's because the atoms that created her are plastic atoms, and they came from oil which came from Dinosaurs. When she appears in front of the Dinosaur that gave the atoms that became the oil that became the plastic that became Barbie, she'd just have to disappear back into the Dinosaur that brought her into existence in the first place. Whew!
that is if only if atoms and what they make are defined by time. plus if it was ant the barbie was send back in time they would be two sets of atoms at the same place in space, and that will make another problem.( theoretically it'll go BOOM, and we now know that barbie killed the Dinosaurs ) however reversing time for a single object makes for epic waste disposal.
will traveling in time, one way is easy, the other? like hell I'd know. for traveling forward in time all you need is to get close to C of relative space ( C is NOT a the same value at all "times", however is dependent on a lot of things ), and thats that. now another and more useful way of traveling forward in time is using the theory that the more mass an object have the slower it moves in time, in relative terms time will be going faster inside the object. it will not let you travel back in time, but it will let anything that have been made cane be called "travelling back in time" when its leaves the object of high mass.
on a side note, when something moves fast its loses mass by definition, so if something that have mass moves at C and then have some of its mass removed it may come to mover faster then C. theoretically.
how do you no its impossible? and time doesnt exist in the universe because whenever we call someone from one place, then the other person can get the call from the opposite side of the universe directly. which means that time travel is possible. also, arggg i forgot his name, but he was like Edison, who was inventing things for fun because he was interested in inventions. and he accidentally found out that the the ship that they were testing was gone. and a day later, he and other ppl found out that the ship has time traveled, but this info was forbidden because of the gov't
hmm.... if i had to say, i'd say time is split into multitudes of diffent streams sort to speak, so you could go back in time and change the pass and just create a new time stream... i think.
[quote]If you were to go back in time and change something you'd be completely changing the future unless you can do it in the same timeframe and same way you did it before. If you don't do that you're changing the future.[/quote[
Of course that would happen. And you can't just do the same exact thing that you did in that timeframe because there would be another you already doing it. Going back in time at all would change the future. Which is why I doubt it will ever happen. But going into the FUTURE, that's a whole 'nother enchilada.
