i'm sorting books for a small department library at the university right now. we just got a ton of books donated by a former department member's widow. he had an enourmous collection of pop-sci astrophysics books, which we have little or no use for as a mathematics department. (we're keeping the mathematical stuff, like quantum physics papers)
this book was among them, as well as brian greene's other book "the elegant universe."
i'll take a look at it and see what he says. but don't expect too much from a pop-sci book. for instance, i saw tv special recently that said you could time travel backwards if you passed the speed of light (presuming it were made possible).
when anyone who's taken calculus knows the limit of the lorentz equation for time dialation approaches infinity as velocity approaches the speed of light. at the speed of light, it's undefined. to my knowledge there is no "other side" to infinity.
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