#Computer simulations based on the theory of relativity predict far more [[black holes]] than are observed.<ref>"The ratio of the mass of black holes in galaxy centers to the rest of the matter in galaxies is larger in the simulations than in the real universe." [http://www.scientificamerican.com/article.cfm?id=biggest-black-hole-blast-ever Scientific American November 28, 2012]</ref> Indeed, it is debatable whether [[black holes]] exist at all. | #Computer simulations based on the theory of relativity predict far more [[black holes]] than are observed.<ref>"The ratio of the mass of black holes in galaxy centers to the rest of the matter in galaxies is larger in the simulations than in the real universe." [http://www.scientificamerican.com/article.cfm?id=biggest-black-hole-blast-ever Scientific American November 28, 2012]</ref> Indeed, it is debatable whether [[black holes]] exist at all. |