Is lightspeed really a limit?:
"We don’t (yet) have any way to test this, but University of Adelaide applied
mathematicians are suggesting that an extended version of Einstein’s Theory of
Special Relativity also holds true for velocities beyond lightspeed.
One of the main predictions of Special Relativity is that the speed of light is
treated as an absolute cosmic speed limit, the line which can never be crossed;
and even the notorious “faster-than-light neutrino” incident in 2011 has left the
theory intact as one of the most robust in physics.
However, during the speculation that surrounded the neutrino discussion last
year1, the University of Adelaide’s Professor Jim Hill and Dr Barry Cox considered
the question of how the mathematical contradictions posed by a faster-than-light
particle could be aligned with Special Relativity.
Their solution, which Professor Hill discussed with The Register,2 rested on
ignoring the speed of light’s status as an absolute limit, and instead, using the
information where the relative velocity of two observers is infinite.3."
See:
http://www.theregister.co.uk/2012/10...y_mathematics/