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!
Time travel forward in time is very possible. to do it you have to travel very close to the speed of light because it will bend the very fabric of time and space itself when you travel that fast. but time travel backwards creates a paradox. OK here is an example. Say i go back in time and stop the oil spill from happening, then my past self would never have known to go back and stop it.
Time travel forward in time is very possible. to do it you have to travel very close to the speed of light because it will bend the very fabric of time and space itself when you travel that fast.
To put something as complicated as what you're talking about like this just doesn't do justice to the theory itself. In fact, it's a complete misrepresentation of the theory. For starters, merely traveling almost or close to the speed of light simply isn't gonna cut it. One would have to travel faster than the speed of light, at least the light relative to their path. The only somewhat cogent theory I've heard of this is to get a ship that can travel very near the speed of light and fly it close to a black hole. Presumably the light would be diverted from its course just long enough for you to get ahead of it. Honestly, I have no idea why on earth this would somehow advance time relative to the person doing it. But even if it did, it would only be for maybe a few nanoseconds.
But there's an overarching problem with this general approach as a whole. A problem, that is, for an observer getting anywhere near the speed of light. We can use particle accelerators to get certain particles up to 97% light-speed. Larger accelerators can shoot particles to over 99% light-speed. But these are single atoms, not an entire human. And the more massive something is, the more energy it takes to get it moving faster. And the amount of energy grows at an enormous rate the faster you go. And we would have to somehow get this person moving even faster than the fastest particle accelerators can move just a single atom.
Theoretically possible? Maybe, for an atom. But I just don't see it working out for a human, even on paper.
stephen hawking proposed this theory watched it on the science channel one day
Stephen Hawking gets brought up way too often in discussions like these. His celebrity status has earned him credence that he doesn't get within the experimental physics community. Even the theory he's perhaps best known for, his singularity theory, he ended up retracting, then retracting the retraction, and then retracting that. Stephen Hawking by no means represents the astrophysics community as a whole, and he has a minority position on many controversial topics.
Time=travel could be possible, yet, changing the past would not be, because theoretically, if you went back and changed it, well you changed it, it is a continuous loop, think of time as a river, it forks, it bends, it flows. One choice can change the future. But the past is stone.
To put something as complicated as what you're talking about like this just doesn't do justice to the theory itself. In fact, it's a complete misrepresentation of the theory. For starters, merely traveling almost or close to the speed of light simply isn't gonna cut it. One would have to travel faster than the speed of light, at least the light relative to their path. The only somewhat cogent theory I've heard of this is to get a ship that can travel very near the speed of light and fly it close to a black hole. Presumably the light would be diverted from its course just long enough for you to get ahead of it.
I've never heard of that. Everything I have read and seen only says you have to go near or at the speed of light. However that in itself is impossible as we cannot even theorize matter going that fast.
Everything I have read and seen only says you have to go near or at the speed of light.
Yeah, but in principle you need to go faster than the light that is relative to your position and velocity. You can't actually go faster than light, but if you can make it take a detour that you don't have to take, then you can get ahead of it. But really this is just another huge problem for the theory. Say we can get a ship going 99.999% light-speed. And say we find a nice black hole to reroute the light. If the light is close enough to get diverted by the black hole, why on earth isn't the ship or whatever (which is much more massive and thus would be "ulled" by the black hole much more strongly) not getting diverted as well?
PBS and NOVA say that all you need to do is go at or near the speed of light. But I think the difference in what we are saying is that my time travel is created by slowing your own relative time while your surroundings stay the same. I think you are talking about more instant time travel.
Oh, that is what I was talking about. I wasn't even thinking about the different until you just now brought it up. I guess I don't really consider non-instantaneous time travel to be the "real thing"
But either way you do it, I can't see gaining more than just a few nanoseconds. Is it really worth it at that point?
But either way you do it, I can't see gaining more than just a few nanoseconds. Is it really worth it at that point?
I'm not 100% sure, and I don't know where to look, but I think going near the speed of light for about a year could put you fifty years in the future when you return to Earth.
That's impossible. Time is a concept created by men and it has no effect on anything.
The way we measure time is a concept created by man, time itself is not. Since the last time I posted here at least one time machine has actually been designed and was being tested. In fact, here is one of them.
