# What does singularity mean in the context of black holes? [duplicate]

Non-rotating big stars can be subject to a gravitational collapse increasing their density. When the density is so high that the mass volume shrinks below the event horizon, a black hole is formed.

Is such an "initial" black hole already considered as a singularity, or are there further shrinking processes required in order to consider the black hole to be a singularity? Do the characteristic dynamics of black holes include further shrinking processes until the mass is reduced to a point (or nearly)?

• It's a function of the speed of collapse versus the size of the BH. the initial BH is genuine BH that would evaporate in a nanosecond, and it is constantly being filled with a barrage of matter which crosses the event horizon, which makes the BH durable and more considerable in our view than a small one. All BH's are theoretically the same during their formation excepting theories of non rotating ones... the question you ask is a function of the theoretical extent of the singularity being infinitely small versus the theorized point at which the matter stops falling, both unresolved concepts. – aliential Jan 10 '16 at 11:27
• Are you asking about the true singularity at $r=0$, the coordinate singularity at the event horizon or both? – John Rennie Jan 10 '16 at 11:29