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