Post by "Eugene Shubert" <http://www.everythingimportant.org>
"Special relativity destroyed the concept of ether. General
relativity resurrected it."
If we are to think of GR as a mechanistic theory, then I would be
forced to agree. The concept of an aether is required. Spacetime
is the aether.
Naturally, Albert Einstein agrees with Mr. Shubert:
"Recapitulating, we may say that according to the general theory of
relativity space is endowed with physical qualities; in this sense,
therefore, there exists an ether. According to the general theory of
relativity space without ether is unthinkable; for in such space there
not only would be no propagation of light, but also no possibility of
existence for standards of space and time (measuring-rods and clocks),
nor therefore any space-time intervals in the physical sense. But this
ether may not be thought of as endowed with the quality characteristic
of ponderable media, as consisting of parts which may be tracked
through time. The idea of motion may not be applied to it." (Albert
Einstein, Leiden Lecture, 1920)
"Simpletons! How long will you wallow in ignorance?
Cynics! How long will you feed your cynicism?
Idiots! How long will you refuse to learn?"