"The problem black holes are supposed to fix is this: if the big bang theory were true, the matter should be evenly distributed in space. Since matter is not evenly distributed in space (we have clumps of matter called galaxies then zillions of miles of nothing between) the believers in the big bang theory are trying to explain why. They are trying to say: "There is matter in between the clumps but we can't see it because it is in black holes." Actually, they are arguing from a lack of evidence not from evidence. This is a poor position to be in when trying to prove your case in a court of law. I don't know if black holes exist or not, but their existence is not proven."