Yeah, once we've got nanoassemblers, we're pretty much screwed. Devour the planet? How about whole galaxies? A self-replicating machine that can fuel itself on any matter is the epitome of destructive (and creative, for that matter) power. On the other hand, I would like laser guns and flying cars, and nanotech seems to be on the route to those. So... Yay nanotech!
Yeah, once we've got nanoassemblers, we're pretty much screwed. Devour the planet? How about whole galaxies? A self-replicating machine that can fuel itself on any matter is the epitome of destructive (and creative, for that matter) power. On the other hand, I would like laser guns and flying cars, and nanotech seems to be on the route to those. So... Yay nanotech!