so, i was watching heroes and thinking about time travel. the way it has been portrayed in all forms of fiction is, when a man travels back in time, the future self travels back in time. meaning that if you travel back to when you were 10, there will be two of you in that time!

the basic theory behind time travel, from what i gather, is that time is a dimention where a person can travel from point to another, just as we can in the other three dimentions. but and travel is epitomized by displacement. meaning that, if i travel to 2 years back, i shall be displaced from 2007 to 2005. but there will already be a me in 2005. meaning, that syndrome where your past self meets your future self and how it shouldnt happen. but the fact it, it meets the totally new entity. its not supposed to be you right, or is it.

in essence, it is matter that has travelled through time, matter that made me up. so does that mean that me in 2007, and me in 2005, are made of separate matter? otherwise, it is completely illogical to think that my 2007 and 2005 self can exist together. that isnt travel, that is replication!!!! and this would mean that i could travel from this time to that to some other, replicating myself. so where does this replicated matter go when i travel to another time zone. even the idea seems absurd to me.

come to think of it, when you do travel in the future or past, havent you separated yourself from who you are? in that essence, hasnt your soul or whatever, separated too?? you possibly cant be the same again. if i choose to travel to 2005, something in me should be altered, for i will relive that phase and hence, the me in 2007 before time travel will change. imagine a physical change like say loosing a hand. in tht sense, where will that matter disappear in 2007 me. before time travel, or rather the 2006 me???? would just disappear? just like that? what will happen to the 2006 that i did live with that hand? and what will happen to the memories of people who saw me in 2006 with that hand?

can we seriously meddle with time that easily? or rather are we supposed to? think about it, if life and memories and events will be made so easily alterable, wouldnt that just change the entire meaning of life and the importance accorded to it. wont life actually become unimportant in its essence? and replicatable, making immortality a possible future?

also, does travelling in time mean that we arent loosing any time on our time clocked bodies either? meaning, does time actually have such a tremendous control on mass that if i keep travelling back to 2005 as soon as i get out of it, my body too will remain in fixed age of 20 that i am in 2007 and with which i travelled to 2005?

or will all this just be created or happening in a parallel universe? assume the theories around time travel to be very valid and true. then couldnt it be possible that somewhere, the future me already travelled in time and altered course of my existence, which i will remain unaware of, as she has changed a course and separated us in matter. meaning i might have a dual life cycle, one in this and one in another dimention?

any answers?