Unless we figure out time travel (laughable), there is no way to come to a scientific explanation of the universe. All the 'theories' we have on the universe's beginnings are nothing but hypotheses...and that includes the big bang 'theory'...which is currently being shot to **** (Back and to the left)...turns out we jumped to a conclusion long before there was any practical conclusion to be made from the evidence. For any valid theory to exist on the beginnings of the universe, we would have needed to be present at the creation of this universe...or somehow create a second verse...and that's under the assumption that our verse is the only one in the universe (which could hypothetically be a multi-verse without contradicting current mathematics). Simply put, we can figure out what the universe looked like millionths of a second after expansion began; but we cannot EVER (through science or faith) figure out what it was at the very beginning, or how it began, or why it began, or when it even began...nor can we figure out if a 'who' was involved, or if there even is a 'why'. It's a pipe dream to think we can establish a working theory to the beginning.