I'd be more convinced if it had been a clear prediction of string theoryI'd be more convinced of someone finding a way of showing it from standard QM field theory. There's actually no requirement for a massless quantum particle to travel at the speed of light - that's a classical notion. (And there isn't even the requirement in general relativity for massless particles to travel at the speed of light except over very small distances, but that's getting very fiddly pedantic.) Of course, doing that might be a lot trickier. Me, I just work in classical physics at the minute so I'll leave that to everyone else :)
(
boris the spider,
Fri 23 Sep 2011, 22:33,
archived)