Re: The failure of the unified field theory means general relativity fails.

"Finally, Le´vi, by means of a purely formal development, found a force
law that led to the observed exact value of the anomalous precession of
Mercury’s perihelion. The theories to explain the form of the proposed
law forces are based, in general, on analogy between electromagnetism
and gravitation known as gravitational field with a gravitoelectric
component and with a gravitomagnetic component [1,23]....... Ernst
Gehrcke concludes: Whether and how the theory of Gerber can be merged
with the well-known electromagnetic equations into a new unified theory
is a difficult problem, which still awaits a solution." - "On the origin
of the anomalous precession of Mercury’s perihelion" Jaume Gine