From Kermit Rose:

Re: Signs of dark matter found? (Nov. 19): What is the relation of the “Dark Matter” to the “Black Holes” created from super massive stars, which are probably at the center of every galaxy? Is it credible that the “Dark Matter” consists of all those black holes, plus one super big black hole ( the 73% mass of the universe ) that represents what’s left over from the “big bang” associated with the “creation” of our “universe”?