Main Question or Discussion Point
I understand that mass warps spacetime, and am well familiar with the bowling ball/rubber sheet analogy, but that to me is a depiction without explanation of the process. It doesn't explain for me what actually causes an object, Newton's apple for example, to accelerate toward another mass, in this case the Earth. I recall seeing an explanation on a PBS show years ago called Einstein's Universe, that involved gravitional time dilation causing acceleration, IIRC, but can't remember the details. I am an interested non-mathematical layperson, so any explanation is appreciated.