So, I don't get it... I know Einstein said that space-time was a "fabric" but I can't visualize that, with us being in three dimensions.i Can visualize in my head (or at least understand) how space and time are really the same thing (or to my knowledge, time is just a component of space, a dimension of space more specifically). I know the "Trampoline Example", that is not the issue... I know that gravity bends the space-time fabric, but what IS the fabric? Thanks guys!