What if the Big Bang was AN event rather than THE event. IF for example, conditions in the universe were collapsing and the Big Bang was a result of a critical

What if the Big Bang was AN event rather than THE event. IF for example, conditions in the universe were collapsing and the Big Bang was a result of a critical mass of, well, mass collapsing in on itself to result in some cataclysmic level of pressure that some quantum-fusion* occurred which we call The Big Bang? *Quantum Fusion == some unknown physics state/event type that we know as the Big Bang...