how the “bending space-time” visualization of gravity works/looks like in 3D space? (i.e. gravity is often visualized with a picture of a flat sheet-like plane, with a round object sitting on that plane and bending it so that objects roll towards the object).

Question

Obviously gravity isn’t acting on a 2D plane or objects would gravitate to the “bottoms” of other objects. I’m curious about whether there is a way to visualize how this model works in 3D.

In: Physics

Answer 1

https://www.youtube.com/watch?v=N0WjV6MmCyM

Might not actually help you visualise 4 dimensions from your 3 dimensional worldview, but no 10 minutes listening to Carl Sagan is wasted.