I would've liked a decent amount of basic science understanding behind the characterization in the story. What I mean is you wrote the novel with the major theme of a person who carries nanites and uses nanotech to fashion needful weapons/items, etc. Shouldn't you then already know the total amount of nanite mass you carry limits the mass of what you create? If you had 100 pounds of nanites in your body, how can you create say a 2 ton weapon or item? For the most part, the author does stay within reason, but there were times of going well beyond what I was referring to.
