Why is gravity visualized by putting a heavy object on a flat plane, creating the curved shape, when space is 3D?

Question

Wouldn’t it curve and pull objects in all directions?

In: 279

Answer 1

Maybe consider the opposite first… if space time shrunk in a gravitational field… the “grid” would get more dense… this would be easy to show… but it’s the opposite, space gets larger. How else would you represent this?