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:


As they say around here, Dead on arrival.

Einstein recognized the limits of Newton's physics and a domain which
required its own mathematical theory.

Many seem to believe that Einstein's physics are somewhat Universal,
and will not suffer the same fate of being limited and succeeded by
another.

How naive.

The fact of the matter is Hubble redshift is empirical evidence of
changes in the fabric of space time over cosmological distances: that
relativity "as-is" is only in agreement with observations where Hubble
redshift is NOT observed.