Hello to the board. I don't know a lot about physics or relativiity, but I'm here to try to settle a friendly dispute I'm having with a friend. He was taught that the mathematics of General Relativity state that an object doesn't fall to Earth, but Earth rises up to meet it. That flies in the face of common sense (if I drop a pencil and the Earth rises to meet it, why don't I rise up with the Earth too?), and seems to contradict the Principle of Equivalence as well, though I can't quite explain why right now. Can anyone here set one of us straight?