Thursday, May 14, 2015

relativity - Is time travel possible?



Time travel -- often featured in movies, books, or facetiously in conversation. There are also theories treating time as simply another dimension, which to the layperson might imply forward and backward movement is possible at will.


But what do we know scientifically with respect to the possibility or impossibility of controlled time travel? Are there any testable theories on the horizon that may support or eliminate controlled time travel as a possibility?


By "controlled time travel" I mean the ability to willingly transport a complex object or being through time (perhaps only to the past, or a copy of the past, which would be an answer too).




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