bstempleton (08/06/82)
Does anybody out there have a nice explanation of exactly why FTL travel of information blows our ideas of causality out of the water? I remember the explanation given to me in Relativity class years ago, but I was never entirely satisfied with it. Admittedly instantaneous transmission of information destroys the lack of simultanaity in the universe, but why can we not have something propogating at finite but FTL speed. I do have some idea of why this is true, but does anybody have an explanation that is more straightforward than a couple of years of physics courses?