Post by Gardez on Nov 19, 2003 0:01:05 GMT -5
How do you time travel?
Where do you actually 'go', 'to' TT?
We exist in a three space, one forward time Universe (x,y,z,t).
Time, t , is a dimension, similar to the three spatial dimensions of space; length, width and depth, (x,y,z).
But unlike the other dimensions of space, we have no way of traveling backwards along the time axis. There simply is no reverse track in time available to us.
Time in our Universe behaves as if it were only 'half of a dimension'.
It is a one way street, without the possibility of a return trip.
If mankind cannot find the 'other half' of the time dimension', the -t, or reverse time flow, he will never be able to time travel into the past.
Of course this doesn't exclude the very remote possibility that an ancient and advanced alien civilization with time travel technologies might simply gift us this technology or even that we may someday simply stumble across a TM in the ruins on a distant planet or even adrift in space.
But I wouldn't count on that.
Still, in any and or all of these scenarios there is still the necessity of a backwards time axis, without which we will not be visiting our past history.
It is easy to travel back and forth in our everyday dimensions.
You, of course, can go right, and then go left. Also you can go back, and then go forth. You can even go up and then come back down.
Its a totally different situation when it comes to time 'travel'.
You can go forward, but you simply cannot go backwards.
Without the 'other half' of the t dimension, there will be no backwards in time travel; forever.
The question is three-fold:
1) Can anything travel backwards in time?
2) Is there another 'half' of this forward moving time dimension?
3) If a reverse time axis exists,is it possible to reach it?
1) Can anything travel backwards in time?
Nobel Prize winner Richard Feynman supplies our only clue to this question.
Once again back to Paul Davies book:
'About Time'
(Experiment):
A gamma-ray photon colliding with an atom produces an electron-positron pair.
(page 205) 'About Time'
Quote:
'Feynman's idea is that the continuos zigzag track in Fig. 9.1 should be seen not as a concatention of three distinct particle world lines, but as a continuos spacetime path of a single electron. The backward-sloping segment of the track- the bit corresponding to the positron- then depicts the electron going backwards in time.'
-end quote-
Here we have an example, according to a Nobel Prize Winner,where a backwards or reverse 'track' of a particle actually means that it is going backwards in time.
Backwards time travel may indeed be a part of our reality - really.
A catch is that this is a positron, the antiparticle of the electron.
And positrons belong to the family of antimatter.
Can matter travel backwards in time?
Question 2: Is there another 'half' of this forward moving time dimension where time flows in reverse?
University of Colorado at Boulder
Cosmology Quote:
The Schwarzchild metric admits negative square root as well as positive square root solutions for the geometry.
The complete Schwarzchild geometry consists of a black hole, a white hole, and two Universes connected at their horizons by a wormhole. The negative square root solution inside the horizon represents a white hole. A white hole is a black hole running backwards in time. (snip) The negative square root solution outside the horizon represents another Universe.
The wormhole joining the two separate Universes is known as:
the Einstein-Rosen bridge.
-end quote-
Again, is there another 'half' of this forward moving time dimension, with reversed time?
The Schwarzchild geometry of a white hole where time is running backwards, isn't simply the opposite of a black hole, it suggests an entire Universe where time itself runs backwards.
Of the three part question, relating to the first two questions:
1)Positrons DO travel backwards in time.
2)And the other half of the forward time dimension exists in another Universe w/ reversed time.
Lets @ssume that all of this is the correct interpretation of reality.
And that there exists another Universe w/reversed t.
Question 3:
3) If a reverse time axis exists, how can we reach it?
Berkeley University of California:
Cosmology quote:
'The white hole may be somewhere very far away from the black hole; indeed, it may even be in a "different Universe" -- that is, a region of spacetime that, aside from the wormhole itself, is completely disconnected from our own region.
A conveniently-located wormhole would therefore provide a convenient and rapid way to travel very large distances, or even to travel to another Universe. Maybe the exit to the wormhole would lie in the PAST, so that you could travel BACK IN TIME by going through.'
-end quote-
Here we find the last answer:
'Maybe the exit to the wormhole would lie in the past, so that you could travel back in time by going through'.
Not only might it be possible to enter into this other Universe with a reversed time axis, through a wormhole, once there you may be able to travel back in time.
Here we have the possibility of another entire universe,composed of antimatter, with reversed t, a Universe where time runs backwards. This is our reverse time axis that may allow time travel into our very own past history.
In this 'kataverse', would people go to funeral homes to PICK UP relatives?
And would the children playing on the living room floor be the parents?
Would you start school in College and say, 'I cant wait to get through first grade, I hate school!'...?