At one level, this is a way of looking at classical, Newtonian ideas: spherical masses deform spacetime in much the same way a lead ball would deform the surface of a rubber sheet.
This is a way of looking at classical, Newtonian ideas. This is at one level. Spherical masses deform spacetime in much the same way. This is at one level. A lead ball would deform the surface of a rubber sheet much the same way.