# How can a naked singularity be possible?

How can we have a singularity, without a black hole around it? How would one form? What does it do?

I particular if $G^2M^4/c^2 < J^2$, where J is angular momentum, M is the mass, G is the gravitation constant, and c is the speed of light. The there will be a naked singularity. For a small, stellar mass black hole would need an angular momentum of $10^{42} \mathrm{kg m^2 s^{-1}}$ to lose its event horizon