Hi vincent
I was over in Prof pats thread and came to a conclusion

tonight, with sage, that gravity is indeed a push in effect...
In thus postulated the simple form would be to me that:
`gravity is relative to mass in varied density and not a pull in effect.`
Density measured to varied units used there is no clumping of substance that can compare to the quanta of substance mass abet spread out, not the largest planet or sun, not the largest galaxy nor largest even event of transformation of energy, the universe is just too grand.
Thus postulated the gravity view from our point of exist as this clumping is just relative to our being and as such in a paradox where we indeed have limited view in the box calling it a pull event, and ever having called it a pull in event the error.
I do not know how to express this more nor teach it as it will indeed take much explanation. I do know that if there was but one sentence to do so I would have to say
`expand your universe!,... rebuild your box a bit bigger!`
.kind regards graham.