In this chapter we will make a summary of what is known about primordial black holes, the constraints on their mass, angular momentum, charge...
Our way of studying black holes differ from the usual one. First we take all the data about black hole mass (see, for example [23]) and we use the inflation model to push that black hole back to the Planck scale . From that one can find the probability spectrum at the Planck scale. This is what we are interested in because of the constraint it puts on topology .
It is different because our goal is to know if enough topology in a small region can create a black hole (and therefore not be seen!). Intuitively the answer is yes.
We want to associate positive mass and topology to give the censorship!