> ...why a post-biological intelligence would even be interested in spreading across the galaxy beyond a few observation outposts. Continuity of species agains

> ...why a post-biological intelligence would even be interested in spreading across the galaxy beyond a few observation outposts. Continuity of species against some catastrophe with a solar system scale blast radius. You can keep that train of thought out to multiple solar systems, galactic arm, galaxy, supercluster, and so on.