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Yul Tolbert
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posted 8/23/04 3:15 PM
If we operate under the assumption that time travel involves parallel universes (which is the only way time travel can happen, I think), then a lot of time travel stories don't make much sense. For example, if you hired someone to go back in time to prevent the 9-11 attacks, you would not be able to appreciate that particular "change" in history. This is because the time traveler will be the one who enters the parallel universe, interacts within that universe and returns to the present in that universe. Meanwhile, you'll still be in this universe where 9-11 continues to be an unavoidable part of history. So in that one episode of Stargate SG-1 where the team sends a message to themselves 10 years in the past was kind of pointless. If we assume the parallel universe theory applies here, they only sent that message to another universe and their counterparts there are benefiting from that information. Meanwhile, SG-1 have been killed and the Aschen continue their secret genocidal plans.
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