Here's what I know about space, so please school me where my logic goes wrong. Space is the distance between two objects, but it also acts as the medium to which all other forms of mass and energy propagate throughout the universe. Electromagnetic radiation, for example can travel through it but hits a wall at c, something to do with the permittivity and mermiability of space. This tells me space is made of something, but it's unknown if that something is quantized or not. As far as I can tell, the Big Bang event was little more than the introduction of space between every single Planck length material all at the same time. The material being what form mass and energy were prior to it. To me, this says space shouldn't be quantized, that the space between galaxies is the same as between atoms. Space would not then be a "foam" since a foam would have to keep multiplying it's little bubbles. A non-quantized space could be any size. The speed of light wouldn't be a constant in an ever expanding see of foam, but would if space wasn't quantized. This now makes me jump to the irrational assertion that it is space which causes gravity. Without space, there would be no need for gravity. Please Register or Log in to view the hidden image!