Reciprocity Whenever human activities incorporate machines or rigidly prescribed procedures, the modes of human interaction change. In general, technical arrangements reduce or eliminate reciprocity. Reciprocity is some manner of interactive give and take, a genuine communication among interacting parties. Ursula M. Franklin, The Real World of Technology reciprocity
Mental infrastructure The diary provides the mental infrastructure that stimulates the mind to remember. Roger Kitching, A Reflection of the Truth To serve as a reminder memory