Is it still true that most if not all galaxies have at their center a Black Hole? And that the estimated gravity is about 10% of the total mass galaxies. And is it still true that all stars or 99 % of them are moving out and a way from the black hole. I was just wondering if these black holes might be small bangs. And as galaxies grow so does the Black Hole. If that 10% is found to be right more then 80 % of the time ( galaxies hitting each other lets say 20 % of the time) I think it would and could be possible and worth some talk.