See also section 401.0 of my Quantum Gravity thread, which has
somewhat analogous results about Bohr-Sommerfeld vs Dirac theory
related to recent research from Serbia.

Osher Doctorow

On Jul 11, 10:18*pm, Pentcho Valev wrote:
Einstein's relativity started with the rejection of Newton's thesis
that the speed of light varies exactly as the speed of cannonballs
does: