graviton reminds me of Darwin's "missing links". some say : we can't find them kuz they never existed.
light is both a wave and a particle, the photon with mass=0 and v=c ( in vacuum).
according to GR, a mass curvates the space-time. a ligt wave coming close to a mass must folow a geodesic, thus deviates.
the experiment (with sun eclypse) is an evidence to GR, if and only if we are sure the mass of photon =0.
if not, say an infinitesimal mass #0, then the light deviation may be caused by attracting that tiny mass, not by curvature.
ie. the mass did not necessarily curvate space-time. it simply added a force field, so that any material particle/object "feels" the presence of that mass thru a force.
in this case any non-material (m=0) wave or particle, will not deviate, near a mass.
I don't believe in space curvature.
and btw, to accept curvature, we have to explain why a mass should curvate the space-time.
consider the following analogy:
let's think like Einstein.
a magnet ( with 2 poles), curvates space-time. if we send a jet of magnetic paticles, it deviates.
if we rotate/move the magnet, and we place a magnetic needle at a distance, we should detect a "magnetic wave" ( this not an EM) and an associate particle , the "magneton".
the needle does detect oscillation. but this is not a wave. it's merely a variable mag. field.
nor do we have any "magneton".
this non material( ie with no inerty) force-field is added to space-time frame , that has no inerty.
thus, it's istantly added, ie. with an infinite propagation velocity.
to detect graviton, they use a metallic cylinder pointing to stars, hoping to detect oscillation = a gravity wave.
what we should detect -- if ever we detect something, due to huuuge distance -- is merely a varying g.
so I believe ther's no gravity wave nor a graviton.
there is a gravity-(force)-field added instantly to space-time, ie. with infinite propagation velocity.
any comment ??