From: utzoo!decvax!yale-com!brunix!rb
Newsgroups: net.physics
Title: Re: is the whole Universe a black hole, or not?
Article-I.D.: brunix.1179
Posted: Tue Jan  4 02:42:51 1983
Received: Tue Jan  4 06:34:45 1983
References: csu-cs.1948

Yes, the whole universe can be considered a black hole.

I seem to remember reading that someone calculated the schwarzschild radius of
the universe based on it's estimated total mass, and got an answer at least as
big as the known (?) radius of the universe.  [If an object's actual radius
is less than the calculated schwarzschild radius for its mass, it is a black hole]

I don't know much about the "white hole" theory, but I don't think it is too
popular these days.

Ronen