Originally Posted By: Bill S.
The warp is not there when matter is absent; it is there when matter is present. This is not a "why" question, it is a "how" question. Your own definition of the scope of science makes this a legitimate question to ask. How does matter have this phenomenal effect on spacetime without involving energy?

Well, yes this is a how question. It is answered by


This is Einstein's General Relativity (GR) formula. I copied it from Wiki. But if you can work with the math (I wish you luck) this tells you how space is warped by mass. And I have no idea why you think it doesn't involve energy. There is a great deal of energy involved in warping space.

Bill Gill

C is not the speed of light in a vacuum.
C is the universal speed limit.