Reply to thread

One point was that the speed of light being a constant is counter intuitive. 

Lots of things are counter intuitive, but correct nonetheless.

Let's see..

That is how I understand the theory of relativity as well, it is based on the constant speed of light, in space that is.  Light does slow down in a denser medium.

So, is the speed of light a constant?  This seems to indicate that it is.