Take That, Brid-Aine Parnell
Einstein said that nothing can travel faster than the speed of light which he defined as c. As far as I can remember I don't think he ever said what the particular numerical value c takes. It varies with the medium in which it travels e.g water, atmosphere, vacuum, void space etc.
The people at Opera can bang on about their measurements like veritable pilgrims but the ultimate clash at demonhead won't occur until they measure the unimpeded speed of light in void space and until then the register should not let them get away scot free with their claims!