The Zero Universe
Black Holes. It is imaginable that the creation of atoms, like in the beginning, is still going on. There are publications in which it is accepted though it is not confirmed. It is also imaginable that for some reason there is a maximum of the number of atoms that can exist in a specific space. When the maximun is reached the surplus of atoms will be absorbed by a Black Hole and the Anti-Mass-Field will be corrected so the equilibrium stays zero. The beauty of this theory is that in the universe the charge and mass are Nothing and stay Nothing, even if mankind and all that lives feels that objects are real. After all, atoms are charges in space and it is not (yet) accepted that charge  has mass.