Newton described gravity mathematically. Einstein curved spacetime for it. But neither explained why masses attract each other.
In the 18th century, Georges-Louis Le Sage proposed an elegant explanation: gravity is not attraction but a push force. Ultra-fine particles stream from all directions in the cosmos. Two bodies shadow each other and are thus pushed together.
His theory required a medium — the aether. When Einstein abolished the aether, Le Sage's explanation vanished from textbooks. Not because it was disproven, but because it no longer fit the paradigm.
Cellular Cosmology provides exactly the medium Le Sage needed: a radial aether gradient within a concentric cosmic cell. Gravity finally becomes physically explainable — not merely mathematically describable.
The next revolution in physics begins with the simplest question: Why does the apple fall?
Cellular Cosmology