none of the forums seemed to be an exact match for this question, so i placed it in the most general forum. i dont understand why scientists think they have an accurate answer to these questions. i understand that they are using the doppler effect with regards to light waves. but according to their results the diameter of the universe is already more than double the speed of light, in light years. so it would seem that we would have to conclude that space itself is expanding faster than the speed of light. or at least was at some point in time. plus we know that the rate of this expansion is still increasing. and we would no doubt already have areas of space that are receding from us at faster than the speed of light, which means that we will never have access to those areas, assuming that we cant receive any information faster than the speed of light. so it seems to me that we may have very accurate numbers regarding the "observable universe", but we dont have even the slightest clue as to what percentage of this observable universe makes up the entire universe, and never will.