"Matter tells spacetime how to curve, and curved spacetime tells matter how to move."?? Huh? Run that by me again.
• Isaac Newton's View: Gravity is an invisible force of attraction between two massive bodies acting across a distance in flat space.
• Einstein's View: There is no gravitational pull. Earth orbits the Sun simply because it is moving straight through a space-time geometry that the Sun has warped.
Somebody has been drinking, and ol' Isaac was known to be a tee-tot'ler.
Another source says the gravity caused by Earth's mass doesn't hold you down ... it pushes up against you.
Hey, Earth, you can push up against me all you wish, but I ain't budging.
These diagrams do not really paint a comprehensible picture of reality.
This seems to make more sense:
Earth's gravity holds the Moon in its orbit and exerts tidal forces that shape the Moon's rotation and shape.
Gravitational Pull: Earth exerts an attractive gravitational force of about 2x1020 newtons on the Moon at an average distance of 380,000 km, creating a gravitational acceleration of roughly 0.0027m/s2.
Balance with Inertia: The Moon constantly "falls" toward Earth due to gravity, but its forward speed (inertia) keeps it moving sideways, resulting in a stable elliptical orbit rather than a crash into the planet.
This is reality.
Why do theoretical scientists/physicists struggle so hard with gravity? It is what it is. It is a magnetic-type force that is a natural property of mass.
Maybe that's why they are called "theoretical"?
Anyone want to jump in on this topic?

