Well, to start off. I'm in my second year of physics, (honors last year, AP this year) and we haven't talked about any of Einstein's theory really yet. So, if I'm completely wrong about anything let me know! The reason i'm posting this is... I've known about Einsteins 'spacetime' for a while and have seen the pictures that show how masses 'indent' the plane and the larger the amount, the lower a mass sits, the larger slope of indentation, so the larger the gravitational attraction. (hope i'm right so far..). What I don't get is how do these objects move just because of a curve in the plane. Isn't this downward motion based upon the idea that gravity exists and is pulling it down? No matter how much you increase the slope, an object won't move if there isn't a force to move it (in this case, a force to move the object down the slope). I hope somebody followed this and was able to understand! All insight is appreciated. I feel like i didn't get straight to the point here. Basically what im asking is for example, the sun creates a gravitational slope and the earth sits on the slope. WHY does the earth move towards the sun just because it's on the sun's slope?