I was going to say "also, galactic stuff never actually falls into the central black hole", but I'm wrong-ish. According to http://en.wikipedia.org/wiki/Future_

I was going to say "also, galactic stuff never actually falls into the central black hole", but I'm wrong-ish. According to http://en.wikipedia.org/wiki/Future_of_the_universe#Stellar_remnants_escape_galaxies_or_fall_into_black_holes http://en.wikipedia.org/wiki/Future_of_the_universe#Stellar_... it's expected that on a timescale of 10^20 years all the stars (or rather, stellar remnants, since stars will have burned out long before) will either fall into galactic black holes (10%) or get ejected from galaxies entirely (90%). So, I guess we've got that to look forward to.