What caused it to suddenly create a universe? What caused the singularity to change into the Big Bang? Can anyone explain how all the mass-energy was accumulated into the "singularity"? Where did the Energy in singularity come from? Could it be that human cosmologists are only stating an unproven theory? We know that energy can be transformed into mass, and mass into energy. If the "singularity" contained all the energy and mass in the present universe, then you will have to admit that said energy and mass came from somewhere or something. So where did it come from?