(August 10, 2010 at 3:07 pm)downbeatplumb Wrote: Light may well have travelled at different speeds in the early universe.
http://en.wikipedia.org/wiki/Variable_speed_of_light
I don't think this has anything to do with my original post either. The wiki article you posted seems to deal with the possibility of the two-way speed of light changing over time. In fact, the article by Lisle seems to reject this when it says:
"Some have claimed that light may have travelled faster in the past. This idea is intriguing, but the speed of light is not an arbitrary 'free' parameter. A change in the speed of light would have profound consequences for the rest of physics, and these are not observed."
So the possibilities offered in Lisle's paper were clearly not dealing with this issue whereas one did deal with the possibility of arbitrarily being able to choose a clock synchronization such that the speed of light varies by direction.
