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Shadowblade225 - 7/17/2005 7:59 PM
First we'll need the ability to travel faster then light - which really, I belive to be extremely possible - faster not so sure, the speed of light itself..definetly. Traverse the stars, and given the size and nature of the universe coupled with the fact that it's expanding the probability of life outside us is extremely likely. We need to see time as a variable comprising of three components...past - this can never be retrieved in my opinion unless through interdimensional weaving, present, and future (which for all intents and purposes doesn't exist yet). Only if antitime exists will time travel be possible. I haven't kept up with the current literature to know the present status or feelings on that one.
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How ever Einstein proved that if you send matter at the speed of light it ceses to exist, ie matter breaks down at the speed of light. If time travel is possible it will need to be handeled much like a warp drive in star trek by circumventing the limitation of normal space and time travel. And the best theory is that time travel would be via the multiverse you travel "back" to a diffrent multiverse then your own one where you did exist at that time more of a linear jump across dimential boundries. Also their is no "time" or "antitime" time is more of a concept in science for why everything doesn't happen at once, much like the ehter of the past. And minor time travel is possible in that we can slow time by moving an object at high speeds. Shown via the atomic clock on a supersonic jet and on on the ground the one on the jet will "lose time" during the same period of operation as the one remaining on the ground.
I like time travel but Schrodinger's cat is way more fun IMHO.
EDIT PS on the multiverse or alter dimensions Kaluza-Klein have some interesting work that seems to prove the sxistance of a 5th dimension. Their conclusion. You can search for the theory and physics online if you really care to see it.
"The classical and quantum motion of probes over the 5-dimensional space-time, predict the manifestation of quantised electric charges and the electron mass spectrum values corresponding to the experimental accuracy available in 4-dimensional space-time, electron states are a manifestation of the 5-dimensional geometry unifying gravity and electromagnetic forces. Therefore, such classical and quantum motion criteria indicate the presence of the fifth dimension as a compact extra dimension of Planck radius at each point of 4-dimensional space-time, confirming beyond any doubt the physical existence of the fifth dimension as postulated by O. Klein. The physical structure of the 5-dimensional space-time proposed by the Kaluza-Klein unification is not anymore a mere theoretical assumption, and the criteria set the first step towards string and brane theory experimental verifications."