As I understand it, the Big Bang might have a few cracks in its facade. Cosmologists still have a lot of work to do.
I agree. The current big bang model seems to be rather Newtonian, with little in it for the ineteraction of singularities which jump the parameters of Newtonian defined space and time, for example. The idea of one continuum proceeding from a singular event is more than passee.It doesn't even fit what we know about the theory of relativity and the role of singularities.Where do the singularities exit? No one seems to want to touch that idea in the field of Newtonian cosmology,exemplified in this schematic.
Its clear to some there is more than one universe, and one cannot understand ours very well in isolation to what is out there.Cosmic time as assumed above does not exist. Time may not even exist.