alex, i just read a bit on the 'push' theory of gravity but could not get to the end...
so, is the premise that gravity is caused by inelastic collisions of particles (gravitons? light? ultra-mundane corpuscles?) with bodies such as planets, stars, people, and that the attraction of two bodies is really a result of shadowing and uneven pressure?
if so, and if the interactions are inelastic, would we not see a lot slow collision particles as their energy is lost during collision?
anyway, no real idea what i am talking about...
cheers,
DJDD