Let's not forget that the BB is all theory and belief in the theory by the relatively primitive humans of the planet. All the humans that believe in the BB are most probably imho, wrong about a beginning to the universe. You believe because of the 'monkey see, monkey do' principle, ie., fall in line with the atheistic educational teaching. The universe is eternal and never had a beginning, and until science can explain why and how it came into existence, the BB should be taken only as a hypothetical model that challenges the more reasonable steady state eternal cosmos.