a solution to the time travel paradox

[KeeperofDreams]

First, there is a general misunderstanding of time.  Time is the change of position, it is motion itself.  Time is how long it took object a to move from position a to position b.  Their is no before time, because their was no motion, nothing moved.  If you roll the hour hand back an hour on a clock did you go back in time, no.  Did the little hand move, yep.

The idea that you physically can go back in time, besides this  is also IMPOSSIBLE, not because of the paradox, but already proven LAWS OF PHYSICS.  Matter and Energy can not be created or destroyed, it can only change state.  To physically move you to a previous time, you will have to take the equal amount of energy and matter and transfer it to present time.  There are a lot of paradox's that prevent this as well, including our favorite Cat in this game.

According to Einstein's Spacial Relativity.  Going back in time from the point you current are is IMPOSSIBLE as well.  As is not mathematically possible as time and space are bound to each other.  Now, space can warp, and this is where going forward relatively is possible.  If you hop on a space ship and travel near the speed of light, space warps around you, so when you return to earth.  Earth relative to most other things will have moved as it normally does; however, you will have moved slower, so it will appear relative to you, that you have gone into the future, you also have no way back, that's a one way trip.

What about jumping to a 5th dimension, well then you don't know about multidimensional manifolds yet; however, it will exist outside of time itself, but that does not mean you can go to any point in time, it means, if you can detect time, that you see all motion at once, all TIME at once. 

This can lead to some interesting ideas about black holes,multiverses, and entanglement.  Anyone who kept up and understands everything above feel free to start going into those interesting ideas.  For it maybe possible at a certain starting point once a device is setup, that we could get messages from the future or other universes.

[russianspy1234]

the closer you go to the speed of light, the more time dilates.  if going faster than the speed of light, you would in theory be traveling back in time.  energy cannot be created or destroyed and space and time are interwined.  this does not preclude time travel, going back in time would not require you to move an equal amount of matter/energy to this time because energy is not being created or destroyed, it is simply being moved through time which is no different from being moved through space.

[KeeperofDreams]

Right, only problem is as you get closer to the speed of light the more massive you become, that is you become infinitely more massive...  so as a carbon based life form, we aren't getting to those speeds without crumpling into our own little personal black hole of sorts...  so how do you purpose it maybe be possible to overcome that, also important to this debate, is it necessary for us as a human to travel back in time, or perhaps it's only important that information may travel back, how do you purpose that may be possible.  (Looking forward to your next post.)

[russianspy1234]

Right, only problem is as you get closer to the speed of light the more massive you become, that is you become infinitely more massive...  so as a carbon based life form, we aren't getting to those speeds without crumpling into our own little personal black hole of sorts...  so how do you purpose it maybe be possible to overcome that, also important to this debate, is it necessary for us as a human to travel back in time, or perhaps it's only important that information may travel back, how do you purpose that may be possible.  (Looking forward to your next post.)

you dont need infinite mass, infinite acceleration will do as well.  i dont know HOW to do it, but the point is that if faster than light travel is a way to time travel, it no longer becomes a question of "is it physically possible" it becomes "is it possible to do safely" which is far easier.  as to information, there are many ways to answer that.  if you can have zero mass information, you dont need energy to send it back in time.  also, an interesting question was once posed to me "why can we remember the past, but cant remember the future?" because in the scheme of the universe, they are the same thing, time is a dimension no different than updown or leftright, it all exists at the same... for lack of a better word... time.  sending information through time is trivial energy wise and in fact involves changing our own perception as opposed to acting on outside objects.  so mental time travel into your past body should be possible by the same mechanism.

[KiLLjoY]

If you find a way to dematerialize yourself into particles that have an imaginary mass (m²=-1) and you accelerate those particles to a velocity v that is greater than c and after that you combine all these particles into an identical copy of your former being - yes i think then it would be possible.

In case you do not, maybe you should hold it with the"Back to the Future" Trilogy. 

[KeeperofDreams]

To KiLLjoY:
Except Negative mass is impossible as it would violate many energy conditions, etc...  Even Anti-Matter has had a positive mass calculated.

To russianspy1234:
"you dont need infinite mass, infinite acceleration will do as well."
Huh?  the problem is you become infinitely more massive as your velocity increases, not that we need it.
You run into basically the same problem with infinite acceleration, although slightly different.
The problem is F = m * a and E = m c^2.  V = a * t
So speed of light is the velocity = acceleration * t
Infinite acceleration means infinitely smaller amount of time, but you never beats out the time barrier in of itself, it is bound to it.
Also Infinite acceleration also means infinitely smaller mass, you can never get there either.
That is in both cases unless you are a photon, or light itself.  The only way to beat that out, is to have negative mass, which runs into problems.

"as to information, there are many ways to answer that.  if you can have zero mass information, you dont need energy to send it back in time.  also, an interesting question was once posed to me "why can we remember the past, but cant remember the future?" because in the scheme of the universe, they are the same thing, time is a dimension no different than updown or leftright, it all exists at the same... for lack of a better word... time."
Unfortunately, the question has some false assumptions.

First time is not just a dimension or for lack of a better word time...  Time is specifically how much movement, relative to other things.  If you move the clock hand back 15 minutes did the hand move in negative time, nope, it moved in a negative direction relative to some things and a positive direction relative to some other things.  Next, our memory is built out a GABA, a very large carbon based structure, to remember the future means means to have a a structure exist in your brain before the movement of the structure occurred, which is clearly a paradox.

[KiLLjoY]

I never claimed there has to be negative mass!
But it can not be positive either, since no particle with mass could ever reach the speed of light and much less go faster than it.
Nevertheless you need some kind of mass if you want to "travel through time" somehow.
The only solution for this would be a particle that has a purely imaginary mass, which means its real part is zero and its imaginary party has some value X.
(m= 0 + x * i)   [where x is variable and i is the imaginary unit (http://en.wikipedia.org/wiki/Imaginary_unit)]

If you want to go further into this, i recommend you to read something about the theory of particles moving faster than light with an imaginary mass. (i.e.Tachyons (http://en.wikipedia.org/wiki/Tachyon))


p.s.: We are basically talking about quantum physics here, which means Newton's laws like F=m*a do not apply here.

[KeeperofDreams]

We are basically talking about quantum physics here, which means Newton's laws like F=m*a do not apply here
True...  still roughly holds...  but your right it does have it's breakdown points.

Sorry, about the imaginary versus negative mass deal, I read m = -1 not m^2 = -1.
If bosonic string theory holds, you did answer one of the possible ways as to transferring information back in time... SO AWESOME
Definitely what I was going for... But, a caution, things like Tachyons, even those among quantum field theory, postulate would be too unstable to be considered existing.

However, if ST holds, what are your thoughts on Entanglement?

[artimies7]

There's been some neutrinos that have gone slightly faster than light...

Does that help?

[nerd1]

There's been some neutrinos that have gone slightly faster than light...

Does that help?

not necessarily, this may have been due to a significant figures error, scientists are still trying to figure this one out.

[KeeperofDreams]

Correct.
  The reason why they published it, was because they wanted to know what they did wrong and wanted the community to act quickly, the math shows it shouldn't happen and so some additional variable was not accounted for.  And it means tests at that level needs those variables identified. 

They have ran the test twice, in one direction, the 2nd was after some calibration values were found off, they need to run it in at least 2 more directions to establish and another team needs to run it at least once before they are willing to accept the possibility for real, there are at least half a dozen other things not accounted for that have come from the community that they are now aware of.

I predict that the neutrino faster than light will fall

- Mark/Ozzy

[russianspy1234]

  Next, our memory is built out a GABA, a very large carbon based structure, to remember the future means means to have a a structure exist in your brain before the movement of the structure occurred, which is clearly a paradox.

dang, disappointed i never thought of that, too bad im no longer friends with the person that first told me that argument.

as to time being movement relative to other things, is that really valid?  i mean, i can make a graph of X position vs Y position where Y is some function of X and say it is relative, but it is actually fairly arbitrary and can be flipped.