That's mostly fair, and I CERTAINLY won't argue the bubble universe, but I believe that the 11- dimensions come from the mathematical models from the string theory? Again, I know very little about this topic and I apologize for the pseudo-science
Has anybody brought up the bubble theory within the multiverse theory? How about the 11-dimensions creating the possibility of all possibilities within eleven dimensions? That would assume infinite space and time, if not in our three dimensional universe.