No, I don't believe that. Personally, I think that Black Holes, if they do indeed exist, are, like stars, also subject to certain criteria and maxima. I think that when a Black Hole gets to be too massive, it explodes so viciously that the explosion is equal to the, or 'a' rather, Big Bang, starting a new (section of the?) universe. To my mind, such a happening could come about when two or more galaxies collide. In other words, I believe in a repetitive universe without a shrinking fase. Hence, in a universe that always is, albeit with death and birth incorporated, like nature on Earth also functions successfully that way, biologically and geographically.