Time travel is one that alot of people ponder, and notibly not just Science fiction buffs. The main reason for that is it's possible for some time travel to occur, however not the sort that you or I could take some journey with [just yet!].
I know it's easy for some to just blatently rule it out as being existant, with an arguement of "If you go back and kill your grandfather, you won't be born".
(This is commonly known as
The Grandfather Paradox, although it would be possible to generate the same outcome without actually killing your grandfather)
As some have state, you could enter into the "Cyclic Universe State" where you going back and stopping yourself existing means you aren't there to stop yourself from going back. This is where some people might draw a conclusion of the infinity sign from, since it's a real "chicken or the egg" scenario.
There is then the theory that you could go back and stop yourself going back again, and then you would do something else and something else different yet again, this is the basis of infinite parallels where anything that could occur probably already has.
However when you start looking into parallels your talking multidimensional ways of thinking which most linear thought processes just can't cope with.
~[Edit:]~
One potential method would be to generate a door between the two time points that stays open, if you make the change and the universe alters, as long as that door is open you still have connection to that parallel universe from where you came.
~[End]~
I use to theorise alot into parallels because I was interested in how people perceived what a "multiverse" would be, if multiple universes exist they must all exist in the same spacial reference to what we exist now so why don't we see them (or perhaps some people do), I theorised perhaps it's dangerous for them to be too close together because they would cause a fusion effect that could output high levels of quanta between the different universes in alternate flux and consider such implications to perhaps cause such things as Spontaneous Human Combustion.
This meant that for parallels to exist, they would have to have a spacial distance between them and in that distance it gave way for the reasoning that their would be time distortions in the form of parallel universes not just being parallel but diagonally staggered.
namely, rather than having this occur:
Code:
0-----1-----2-----3-----4
0-----1-----2-----3-----4
(Crude parallel time lines with each number representing an incriment)
You could potentially have parallels work like this:
Code:
0-----1-----2-----3-----4----
----0-----1-----2-----3-----4
In fact I hypothesised that if you could make parallels and as many as you wanted at that, you could stagger the smallest of paradoxal instances to make giant "quantum leaps".
I believe Einstein said that "
Mass couldn't travel faster than light", however he made allowances for "
Information". Such information is discussed in the EPR Paradox, however the theory in relationship to "Information travelling faster than light" suggests that small quantum events can occur, similar to Standing 1000m's away from a starter at a race track, when they fire the gun you see the smoke but it takes a moment to hear the sound.
Such relations are the very foundation of how we know spacetime has dips and bumps in it.
In fact all this tied in with say the constant research towards faster and higher processing computers like Quibit (Pronounced "Cube-it") Computers, which will use naural networking and very small instances of paradoxes to deal with processing great amounts of data at faster speeds. Such machines are the preverbial "Infinite Improbability Drives" of the future, where an answer will be granted before the question has even been asked.
(Although the answer would be a cascade effect, each time it answers it pulls it's answer further and further back before it answered, perhaps as far as the beginning of when the machine was made. When this happens it causes an advance in society and science, but in steps and in reverse to the time lines direction that we all take for granted as going forwards.)
