I'm honestly torn on the idea. If you take a look at the very early universe and the anatomy of the BB, it resembles the same activity as a black hole exerting energy and particles that eventually cool to matter - in reverse. It is possible that a black hole-like and white hole-like form of energy collide together and their opposite spin axes cause an exchange of particles and anti-particles, and eventually reversed outward to be followed by an inflationary period, where the escape velocity exceeds the pull-back of the black hole itself. I mean, you don't technically need to be that far from a black hole to be pulled into the event-horizon.
Super giants die and become black holes, which allows for a knot and warp in the fabric of spacetime, but what about something very similar to black holes creating universes on a much larger scale? I still think the idea isn't too absurd. Then again, I've only been studying astronomy and theoretical physics for a couple years now.