If I understand correctly, Bell's recording of his personal activities became his professional obsession, though just where the line gets drawn between the two is fuzzy at best. Our days may be divided between work and home, but it's hard, if not impossible, to compartmentalize our thoughts into those clear cut divisions. Around the dinner table we may be thinking about a work-related issue, and while at work we no doubt run numerous personal issues through our heads. In that sense, Bell was lucky to have a job that allowed him, perhaps even required him, to go about his daily (personal) business. In a project such as My Life Bits you can't have one without the other.