Optical gravity claims that spacetime is the flat Minkowski space. Gravitational fields cause weakening of forces, and moving any object in a gravitational field causes energy flow, which in turn makes the inertial mass larger. Furthermore, the inertial mass in the vertical direction is bigger than in the horizontal direction.
In cosmology, the standard cosmological model is the inflating balloon model.
Can we reproduce the balloon geometry within the flat Minkowski space? If one cannot escape from the balloon, then we must be in some kind of a black hole geometry.
Optical gravity predicts that a forming black hole will eventually reflect back all material. Maybe we are close to the event horizon of a huge black hole, and seeing the back reflection phase?
Why is the matter density of the visible universe close to the critical density of the standard cosmological model? Alternatively, we could make a black hole from all the available matter, and its radius would roughly be the radius of the visible universe.
What is the matter density in the reflection phase of a black hole?
Can optical gravity explain dark energy? If the universe is becoming more and more Minkowski, would that create the illusion of an accelerating expansion?
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