I have always been told that the gravitational force of a body, like the sun, extends out all over the universe, but gets smaller with greater distances. I'm pretty sure that this is true, but according to general relativity, gravity is a warping of space(time). It's like the bowling ball on the trampoline analogy. Like the sun warps spacetime, the bowling ball warps the fabric of the trampoline. Here's what I'm getting at: Why wouldn't these creases in spacetime thin out and eventually reach a value of zero?