On Wednesday, April 11, 2018 at 3:16:07 AM UTC-7, Bast wrote:
Herbert Glazier wrote:
That they can only get more dense,but their size stays the same.More
dense means greater force of gravity,and that means greater accretion
disk. I must add BHs came first and control galaxies core.One head on
look at a spiral galaxy shows this reality.Bert




That is the definition of black holes.
They are ALL singularities, of varying immense mass.

A single point is always a single point. The difference in mass of that
point will have differing effects on the mass and space surrounding it.


But the event horizon is variable, and should increase in circumference as the mass increases. However assigning it a diameter is tricky, since spacetime inside event horizon is highly distorted. A diameter calculated from the circumference is best said to be one projected on Euclidean space.

Double-A