I read it as meaning "the gravitational effects we attribute to dark matter may be a product of even more massive black holes at galactic cores". I once wondered this. Then I learned our studies of how star revolution rates taper off as a function of distance from the core were not explicable with a giant mass at the core; there needed to be a diffuse mass.
What I intended as the meaning was close, it was basically this (hopefully it makes more sense): the gravitational effects we attribute to an unknown source, dark matter, is likely the product of matter inside of black holes.
In other words, there may be weird quirks of physics that are not yet discovered. what they are I don't know. Maybe mass density or gravitational density has an upper limit, and the universe conserves mass by redistributing it in some strange way.
The point is also just this: fantastic explanations that explain what dark matter is (alternate universe's, leaking gravity) are probably the least likely to to be true. Instead, the most likely explanation is the one which uncovers the least fantastic possibilities -- it likely is explained using the least modifications to our current observations/understanding of the universe.
I don't know how it didn't make any sense, but I'm sorry that it didn't - Can someone please enlighten me?
