Thursday, June 23rd, 2005, 4:02 pm
Time Travel – Past and Present
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The BBC published an article about a model which solves the “I’m my own Grandpa” paradox in the context of time travel. The model is based on laws of quantum mechanics.
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 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…
