"Too Many Kooks Spoil the Brothel" ha scritto
nel messaggio oups.com...
The collapse of matter towards the formation of a black hole should
slow down indefinitely, observed "from outside", as it comes nearer and
nearer to forming a horizon. Given the finite age of the Universe, I
cannot see how any could by now have formed. ...

Recent theories suggest that the matter collaps stops at some time, so you
don't have to solve paradoxes...
See http://xxx.arxiv.org/ftp/astro-ph/pa...03/0503200.pdf

Luigi Caselli