At the same time, however, Einstein's theory was confirmed by direct observation of the gravitational lensing of starlight past our sun during an eclipse.

The difference, to my mind, between science and philosophy is that the philosophy of relativity can exist independent of such confirming evidence. But the scientific theory cannot.

It's always important, when dabbling in philosophy, to keep track of when one has wandered so far out on the branch of reason that one is no longer supported by the trunk of evidence.