Submission + - Travel Back in Time Not Possible
anthemaniac writes: Time travel has long been one of those "theoretically possible" things that makes Sci-Fi thrive. But while going forward in time is still perhaps possible, going back has been all but ruled out, according to an article (and accompanying videos) at LiveScience. Chiming in are four scientists who think about this a lot: Brian Greene, Charles Liu, Michio Kaku and J. Richard Gott. Liu flatly states: "It is not possible for you and me to travel backward in time."