# Political distance among political parties of the right and left. - James Grier Miller

# A space of frequency of trade relations among nations.

# Pecking order in birds or other animals.

My analysis of living systems uses concepts of thermodynamics, information theory, cybernetics, and systems engineering, as well as the classical concepts appropriate to each level. The purpose is to produce a description of living structure and process in terms of input and output, flows through systems, steady states, and feedbacks, which will clarify and unify the facts of life.