Interesting: I wonder if there is more than one process by which a new reality, (baby universe) could become manifest? In your post you alluded to the possibility that there could be a limit to the elasticity of the fabric of space and time. Perhaps space and time are in reality independent of one another. A temporal process evolving independent of space would probably require an origin unique from our perspective.I see the Big Bang as a 'quantum leap event' within a much more complex, multi-dimensional reality. The energy within the universe may have access to all of the energy within reality. In other words reality may be an open system in which many complex conversions and resulting temporary isolations with fewer dimensions take place. The universe may be preparing for another quantum leap when the fabric of space-time has been stretched to the max.