So what is origin of the gravitational constant G?
What is origin of the dark energy?
What is the internal structure of the Einstein spacetime and the gravitational field?
What is the internal structure of the particles carrying the gravitational energy?
What are the initial conditions in your model? Where are the differences between the GR and your model? Can we measure such effects? How? Does your model describe more than the GR and contains less the parameters?
The origin of G would be a vector force through a membrane like an atom. So an atom would be a hole, and in that hole would be a flow, and against the atom membrane would be a vector force. The flow would be the Aether, a spherical particle. Therefore G would be a constant of mass.. atoms with a vector force. The more atoms, the more G, and weight, and compaction.
Dark Energy would be the out flow of Aether. If you fill atoms with Aether where does the Aether escape? It compacts, and then folds inside out to become negative mass.. anti-matter.. and magnetism. Negative mass acts like a hole in mass, it passes through mass like Neutrinos, and like a link in a chain it creates bonding. A chain requires a hole in a necklace, and negative mass creates a hole for mass to lock into. As negative mass escapes, more mass enters, and now you have a counter weight for G. So two object on the moon fall at the same speed, they both have a counter weight which is equal to their mass... Dark matter.
Einstein speculated bending space time. This require physics that move an object through a curve in space. The imaginary image is actually the curvature of Aether into atoms in the Earth with flow, and rotation. Quite simply.. Einstein imagined a plug-hole, and said something completely different because he had gravity as a pull, and not a flow. His picture was thrown off by attraction which doesn't exist.
The particles which carry the G force are just a membrane, and a negative mass hole, but this hole is something that humans think of as empty space. A negative mass hole is not empty, it is reversed physics. Whatever matter can do, a negative mass hole can do in reverse. This particle can fold inside out so that the hole is the membrane, and the mass is a nucleus. This is a Bose Einstein condensate. With the Dark Matter on the outside the gravity is upwards, and the condensate climbs walls, pulling mass with it like a snail shell.
The initial conditions are an expanding Aether Universe, which then creates collisions between Aether particles which are tiny bumps. The tiny bumps evolve into waves. This is a complete spherical stacking system, so the waves are spherically stacked particles. This allows for the usual spherically stacked results.. the kissing problem. A central particle becomes trapped by 12 surrounding particles. A wave travels towards this centrally trapped particle in every direction, and so it folds inside out. It becomes a hole. All of the other particles start to move into this hole, and they also collapse into a larger hole.
What you have here is the beginning of a Galaxy. An infinite expansion of an Aether Universe gradually folds through a spherically stacked system into black holes, and Galaxies. With Gravity, and Dark matter as results. No big bang, no singularity. Just folding Aether.