Gravity vs. Inertia Force was What if

Hi oc I hate saying in my (iffy posts)" that I read it" I want these
post to be interesting,and close to the mysteries of nature,but staying
for the most part in the realm of good science.(not much science
fiction) This is in a book. A blackhole the size of an atom would have
the mass of a mountain. For an atom size black hole to form 10^36 atoms
must be squeezed into the dimensions of one. oc that is one hell of a
lot of atoms,but let me say I dought that a proton is a blackhole,I'm
not saying it is impossible not to be. Bert