If Hawking radiation exists, as seems likely, any primordial black hole of mass less than about 10^11 kg would have already evaporated into nothingness at prese

If Hawking radiation exists, as seems likely, any primordial black hole of mass less than about 10^11 kg would have already evaporated into nothingness at present time. Indeed a Planck mass black hole would evaporated in Planck timescales, on the order of 10^-44 seconds.