OK, my first post here, so treat me gently! Please Register or Log in to view the hidden image! WH's although unlikely to exist, along with wormholes have been the subject of much speculation in mainstream science. Let's speculate that the Big Bang is actually the outpourings of a WH, emerging via a wormhole and Einstein Rosen Bridge from a BH in another Universe. Now on the old forum I once participated in, a GR expert in whom I had plenty of respect for, said that this was impossible and from memory raised the second law of thermodynamics to support that view. Let's also speculate that BHs in our space/time do exactly the same thing and via the ERB and wormhole, create an outpouring WH into another baby Universe. We all know that GR and all our laws of physics do break down at the quantum level of the BB and BHs and we call these regions Singularities. My question assuming the possibility of the above scenario is as follows.... If BHs in our Universe do create baby Universes [as described] what happens to that BH once the mass that made it a BH, passes into the baby Universe? I have two scenarios.....  Once the BH has lost that mass, the BH will cease to exist...finito!  Or will the BH continue to hold its shape even with the mass gone, due to the fact that all communication within the event horizon, is always one way towards the Singularity, so the EH of the BH can never know that the mass is gone. This along with the property on non-linearity of gravity, assures that the BH will hold its shape and be an Eternal BH...that is a massless BH held together by gravitational non-linearity. see....... Eric Weisstein's Science world Wolfram under Eternal Black Hole where it says.... Eternal Black Hole: A massless black hole which is a stable topological structure held together by the nonlinearity of its gravitational field. What are your views on this scenario?