more on time travel
By ET
From BBC news: New model ‘permits time travel’ 
If you went back in time and met your teenage parents, you could not split them up and prevent your birth - even if you wanted to, a new quantum model has stated. Researchers speculate that time travel can occur within a kind of feedback loop where backwards movement is possible, but only in a way that is ‘complementary’ to the present. In theory, you could go back in time and meet your infant father but you could not kill him.” From the article: “Quantum behaviour is governed by probabilities. Before something has actually been observed, there are a number of possibilities regarding its state. But once its state has been measured those possibilities shrink to one - uncertainty is eliminated.” In other words, you can pop back in time and have a look around, but you cannot do anything that will alter the present you left behind.
November 14th, 2005 at 2:32 pm
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November 13th, 2005 at 11:24 am
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