Awasome Varying Speed Of Light References. In order to be the vsl as a viable theory, it should inherit the success of special relativity including maxwell equations and thermodynamics. Accepted classical theories of physics, and in particular general relativity, predict a constant speed of light.

Bimetric theories (where the speeds of gravity and light are not the same); Φµ = e a µφa. However, over the years, physicists.
