[lutusp]

Quote: "Experimental evidence may one day provide physical proof as to whether or not black holes exist in the universe. But for now, Mersini-Houghton says the mathematics are conclusive."

Not as conclusive as the evidence for black holes. Remember that the article's hypothesis requires proof that black holes do not exist -- in other words, proof of a negative. Proof of a negative is generally regarded as an impossible evidentiary burden, and calls into doubt the hypothesis that relies on it.

There's pretty good evidence for very large, very dense masses at the center of most galaxies including our own. The default conclusion based on the evidence is that they're black holes -- they have the right mass and density.

We should all remember that a mathematical theory isn't a scientific theory until observation bears it out (produces positive evidence), and to the exclusion of competing explanations.