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

To visualize 2D space being bent, you need a third dimension, which we can easily visualize. To visualize 3D space being bent, you would need a fourth dimension, which out brains are not capable of visualizing.