"Displaced aether pushing back and exerting inward pressure toward matter IS gravity."
You are saying that pressure is gravity... Absolutly Wrong..Just think about this air puts pressure on you.. Your body puts opposite pressure.IT cancels out... According to your theory Gravity is distributed equally around the object..Which is very wrong.. You will find that gravity well in space-time is more at the center...Just look the image of gravity well in internet...Gravity well that is highest is near to straight aligning towards the center..In your theory,Pressure is what creates gravity.So it is distributed equally around the object..You cannot create variable pressure...In your case pressure is arising outside..In space-time case,it is right from center as it is understood as deep gravity well is created straight aligning towards center...If pressure varies,You will say gravity varies which is not the case.SO YOUR THEORY IS WRONG.....
Check out the second part of my response here for articles which refer to the pressure of the aether being responsible for gravity and other articles which refer to dark matter as aether.
'An Extended Dynamical Equation of Motion, Phase Dependency and Inertial Backreaction'
http://arxiv.org/abs/1208.3458
"We hypothesize that space itself resists such surges according to a kind of induction law (related to inertia); additionally, we provide further evidence of the “fluidic” nature of space itself."
The aether is, or behaves similar to, a superfluid with properties of a solid, a supersolid, which is described in the article as the 'fluidic' nature of space itself. The 'back-reaction' described in the article is the displaced aether pushing back and exerting inward pressure toward the matter.