The ol grandfather paradox... if you went back in time and killed your grandfather what woudl happen? if u killed him you would never have been born therefore couldnt have come back in time and so on.... your trapped in a loop, i read an interesting novel the other day (i forget the name) that had a peculiar idea i that never occured to me... it kinda personified time, if you go back in time you will be unable to kill your grandfather, u will slip on a bannad peel when u go to shoot him, or simply it wont be physivcally possible for you to alter histroy.... and ideas ?
It is very simple, that is the incorrect view of time travel. The typical take on time travel usual is as follows... |____________________| _A_B_C_D*_A'_B'_C' D*' _3_4_5_6__7__8__9_10 *= time jump All variables= equal an event n=the progression of event In this classical view of time travel, event A Prime proceeds event C and the traveler is competely aware of the jump. To him, he is "viewing" what had happened at the time period he has traveled back to, rather than actually experiencing it for the first time. Equally, because of this jump into another time frame (while still following ones own, seemingly, natural progression where A' is the seventh event) two of the same people can exist at the same time, Casualty laws are defied, and the reality contradictions such as the Grandfather Paradox are possible. HOWEVER this is the wrong idea of what TRUE time travel is. Notice.... |_________|__________| _A_B_C_D*_A'_B'_C' D*' _3_4_5_6__3__4__5_6 THIS is TRUE time travel. In this model, the progression of events stay in sync with what should be happening. A' does NOT follow D, relative to the observer. And when one travels back in time to point A, then ALL of the factors true during the time of point A correspond with point A Prime. Thus, no paradoxes and Casuality violations are possible. One cannot kill his grandfather, and one has NO knowledge whatsoever that anything has changed. What is "Now" for A still is percieved as "Now" for A', the ONLY events that have been observed to have preceded A' are {(n-1), (n-2), (n-3), (n-k)}, and any knowledge from the future is lost. Sheds a bit more light on why it could be possible....
Interesting Even thought i didnt understand some of that i get teh generally idea... im only in grade 10.. coudl u explain a little most easily pls Please Register or Log in to view the hidden image!
Well its quite simple actually, if I travel BACK in time, then EVERYTHING would be the same. Meaning that I would not be alive before I was alive, that is the paradox in itself. If I go back before I was born, then how can I kill my grandfather, because I don't exist yet. Equally if I travel back to a time period when I was a little boy, then, I would be a little boy, and all of my thoughts and memories would ONLY be what I was thinking when I was a little boy, nothing from the future would be accesible. No memeories, no knowledge, no paradox.
You're assuming that the body changes with the time travel, correct? If I went forward twenty years, then I'd be in my mid thirties, rather than fifteen. If I went back fifteen years then I would still be in my mother's womb. MY solution to the grandfather paradox is that once you step into a time period that you don't belong to (i.e any time except for now) then you are bridging that universe from the normal one. So, you can do whatever you want, but the effects will only affect THAT universe and not the one that you come from. Get it?Please Register or Log in to view the hidden image!
I heard an interesting theory that supports the idea that time travel is impossible: If time travel were possible, wouldnt you have a million time machines appearing at each point in time (or at least at interesting points in time) as time travellers from the future came back to witness events in history? If time travel were possible, where are all the time travellers?
They aren't in this universe because the second they go back in time they create a new bridge universe and exist there.
I proffer the quantum mechanical view. If you travel back in time and killed your grandfather then you won't be born... but the you that traveled back in time will still exist, what gives? The answer is that you have created a parallel universe and though now you won't be born the you that killed your grandfather came from another universe (the original universe) in which you were born... got it? Either that or you screw your grandmother to compensate... and you become your own grandfather. Please Register or Log in to view the hidden image! You also wound not be over flooded with time travelers because every time some one travels back in time they create a new universe that they are trapped in.
I think the mutltiuniverse hypothesis is quite probable, and I have other reasons beside the ones you all mentioned. But really there is a difference betweem traveling BACK in time, and traveling to another parallel universe. My proposal is correct in the sense that if I were truly in a time period that was is "alterable" then that means EVERYTHING of that time period that was true when I "first" experienced it is true for the second time I am. For, if I already experienced my future self visiting me when I was three, why would I visit my three year old, self when I was an adult. This is a paradox, and it really doesn't make sense becuase it is asusmed that as we progrees through time, we see things for the first time, and as someone else pointed out, we would be seeing people from the future coming in our time period if this way of time travel were too. HOWEVER if time is looked upon as a closed system, as in my hypothesis, then you no longer have the paraodxes and contradictions, that are present in the classical hypothesis. And it makes a LOT more sense. I go back in time when I was three, I am ONCE AGAIN a three year old boy, never knowing that time travel is possible, and forever being stuck in a time loop, and equally, time is relative, meaning that no one else is affected by this time loop, and they would probably view the traveler "diappear" when in actuallity they are traveling so fast that it is an illusion. I am still thinking through this, so it is still in its infant stages, but I am very very sure based on logical reasoning that if one travels back in time, he would NEVER even know the difference, and what Then to one is Now to another.
