Martin DeMello wrote:
> Josef 'Jupp' Schugt <jupp / gmx.de> wrote:
> 
>> In principle the condition that the Schwarzschild radius is larger 
>> than the physical size of the object can be met for *any* mass.
> 
> Hawking proved they'd be unstable, at any rate.

IIRC he showed that *all* black holes are unstable. Something unstable
can exist: A girls best friend wouldn't exist otherwise because diamonds
are not stable at pressures in the 100 kPa region.

Josef 'Jupp' Schugt