Prof. R.Y. Chiao already showed that a superluminal *group* velocity is possible (Brillouin describes 5 different kinds of velocities).
So the essential question is not *can light travel faster than light?* but *is superluminal signaling possible?*
p.s.. *is quantum nonlocality a superluminal carrier* is (also) an interesting question, in my opinion.
This archive was generated by hypermail 2b29 : Mon Oct 02 2000 - 17:34:57 MDT