Has anyone ever accurately represented the distortion of 3D space by gravity geometrically? It would be sweet to see what a 3d wireframe grid would look like with a very massive body distorting it. I seem to only see the "2D projection" of gravity where the earth is weighing down a flexible surface which seems to me like a little too convenient of an analogue to use. Looks cool, not sure it explains well what's going on here though.