Locke
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time travel [possibilities and impossibilities]
Locke replied to *puffy* japanisthebest's topic in Astronomy and Cosmology
If you time traveled, you would not be able to see yourself. Since time goes slower with less gravity, if you went into space traveling at the speed of light for a few years, and returned it would be 50 (or so) years later, and all of your relatives would be 50 years older while you were only a few years later. I don't know if it's possible to time travel into the past, but it very well could be and then I would agree with the parallel universe ideas.
