[The contrast between discrete symbol strings and continuous dynamical processes] are said by Pattee [Biosystems, 1979 11:217-226, etc.] to identify … in two modes, the symbolic and the dynamic, … By Pattee's reasoning, both modes must be given … … Nature uses the symbolic mode … sparingly. Dynamics are used to the fullest … to achieve characteristic biological effects. Symbol strings are … to trim the dynamical degrees of freedom. … [p. 401] Only in the working out of the … needed to complete the explanation. To begin with … by arbitrariness …
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