Critical Collapse and Tiny Black Holes

In life, a critical point might describe the time you said yes (or no) to a life-changing opportunity. In physics, a critical point also describes a kind of crux--you can think of it as a point beyond which things change significantly. Critical phenomena is a phrase that describes physical processes close to a critical point.Imagine that you have a bunch of matter concentrated into a tiny volume, so that it is right on the verge of forming a black hole. How do you tell if the matter will collaps...