Feynman Clocks, Casual Networks, and the Origin of Hierarchical 'Arrows   of Time' in Complex Systems from the Big Bang to the Brain
  A theory of 'time' as a form of 'information' is proposed. New tools such as Feynman Clocks, Collective Excitation Networks, Sequential Excitation Networks, Plateaus of Complexity, and Causal Networks are used to unify previously separate 'arrows of time'. 
Scott M. Hitchcock