The Handbook
A book created by the legendary tattoo hacker Kairo, detailing his experiments into creating a Nanocel Assemblage to mimic the structure of a human brain. He calls this hypothetical construct a swarm, and some people believe that he managed to create a swarm complex enough to transfer his own consciousness into. However, for most people this is in the realm of mythology, and the Handbook remains a hypothetical text on ways which could be used to add more computational power to a tattoo.