The document discusses the concept of a virtual brain called Blue Brain. It describes Blue Brain as a machine that can function like the human brain by taking decisions, thinking, responding, keeping memories, and having feelings and emotions. The document outlines IBM's current research project to develop a virtual brain within 30 years that could upload a person's intelligence, knowledge, and skills by using nanobots to monitor and map the activity of the natural brain. Some advantages mentioned are being able to remember things without effort and preserving a person's intelligence after death, while a disadvantage is potential dependence on computer systems.