> How can something that doesn't really exist such as space and time possibly be warped? Think of a surface of a ball: it locally looks flat, but globally is p

> How can something that doesn't really exist such as space and time possibly be warped? Think of a surface of a ball: it locally looks flat, but globally is pretty warped. This is an example of a warped 2-dimensional space. The spacetime is just 4-dimensional analogue. http://en.wikipedia.org/wiki/Manifold http://en.wikipedia.org/wiki/Manifold