Reached the end & wow, was it a wild ride. I don't read a lot of SF (I should fix that) so I can't compare, but suffice to say this blew my mind (enough that I should do a reread). I love the vastness of the ideas explored here, & the realism & beauty of the human endeavour: we are always both everything & nothing all at once. Also makes you think about bleak stuff like ethnic-cleansing (species-cleansing!) & the inherent violence of the universe.