"Roads? Where We'Re Going, We Don'T Need Any Roads."Is Time Travel Possible?
Submitted by rustyc on 06/30/2008 05:21 PM
- Category: Technology
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"Roads? Where We'Re Going, We Don'T Need Any Roads."Is Time Travel Possible?
I bet everyone who has ever made a mistake, sometime or another had wished to go back in time and fix what went wrong into what should have gone right or what they would liked to have happen. The research I have done so far explains how going back in time can be possible. Time travel exists in two realms, the realm of fiction and the realm of fact. The realm of fiction is considerably richer. Time travel fiction can be classified as romantic fiction or science fiction, or perhaps a combination of the two, depending upon how much science or technical innovation is described. Just romantic time travel fiction involves lost loves, long deceased friends or relatives, but without taking notice of technological change or describing a technology of the time travel mechanism itself. Most of the time, the time traveler goes to sleep and wakes up in a different age, maybe later to find that it was all a dream.
There are problems with time travel. The commonest are the so-called paradoxes. For example, if we could travel through time, imagine what would happen to a time traveller if he or she travelled back in time and killed his own grandmother at birth. In theory the time traveller will therefore never be born, so the journey could never have been made in the first place; but if the journey never occurred then the grandmother would be born which means the time traveller would have been born and could make the journey ... and so on and so on. This is a paradox. There are two possibilities to resolve this paradox. The first is that the past is totally defined. Everything that has happened or must happen, including the time traveller's attempt to kill his grandmother cannot be altered and nothing will change the course of history. In other words, the time traveller will experience endless mishaps or obstacles in trying to kill his grandmother and will never achieve the murder, thus keeping time intact.
The second possibility is more complex and involves the...
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