A friend of mine had asked me to elaborate on 'the Grandfather paradox',, Here it goes...
It points out that if you were able to travel into the past you could (if you were so inclined) kill your grandfather when he was very young and thus render your own birth impossible. A simpler version is that you could kill a younger version of yourself so that you would not be alive in the future to travel back in time. The Grandfather paradox shows how one form of time travel could violate causality by eliminating the cause of a phenomenon that has already taken place in the present.
Another form of this paradox is the "predestination paradox". You travel back in time and fall in love with a woman, who in your own timeline would be your grandmother, and in essence will become your own grandfather.
This might be based on the quantum physics theory of "quantum realities" which states that for any event there is an infinite number of outcomes, so choices made by someone will determine the outcome of such event. But for every reality there will be a different outcome. So if you kill your grandfather in one timeline, this will automatically create a seperate timeline in which you would remain. Any actions you do from there on would have no effect on the timeline you came from.
There's enormous amount of material and discusion on Time travel and related stuff on the net,, Check it out!!
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3 comments:
Wow...
dont you ppl have any business at all??..time travel,killing ur grandfather,falling in love with ur grandmother,omigawd...
i think that there are so many paradoxes. i think that you would have heard of the zeno's pardoxes. my favourite is the one where in the rabbit thatraces the tortoise who has a head start can never pass it. the reason being for every distance the rabbit travels, the tortoise is going to travel a distance no matter how infintesimally small. this means that the rabit is not going to pass the tortoise.
there is another one called thethys ship. imagine that u have wooden ship that is rotting and you start replacing the parts that are rotten. at what point of time will you say that it is no more the original ship? i guess that the logical answer will be when 50% of the parts have been replaced. now take it that with the 50% of parts that have been removed u have made another ship. now do you have two original ship? heheheheheh??
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