Not hot? Is that because heat is defined as molecular movement and no molecules can exist near the singularity? Perhaps it is because the singularity has zero meters radius? How can nothing have a temperature? If the black hole absorbed only one one watt second in the last billion years, the watt second can't escape, so is it not, at least warm near the singularity?
I would expect stuff near the sigularity as it takes time to stuff, stuff into a zero meter radius? Even photons? Neil