I never heard the heavy ball thing before. But there is a lot of stuff about gravity actually pushing rather than pulling. It’s kinda based on something called “the ether”, an old term about space. And it does explain why light slows down when passing through water and then speeds up again once it passes through.
I imagine an infinite number of rope tows intersecting at every point in the universe. Energy grabs onto one of these and never goes as fast as the rope tow, but loses its grip a bit when passing through some items. And when a large mass blocks the rope tow, it reduces the speed further, allowing more grip on the rope tow going in exactly the opposite direction. When in stasis, the energy has an equal grip on all the rope tows passing through all the points it comes into contact with.
“It’s kinda based on something called “the ether”, an old term about space.”
The ether is another idea that was abandoned because it failed to meet experimental testing. The Michelson-Morley experiment put the nails in that coffin, and paved the way for relativity.