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ROBERT ROSEN AND GEORGE LAKOFF: THE ROLE OF CAUSALITY IN COMPLEX SYSTEMS. Donald C Mikulecky Professor emeritus and Senior Fellow in the VCU Center for the Study of Biological Complexity http://www.people.vcu.edu/~mikuleck/. ROBERT ROSEN.
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Donald C Mikulecky
Professor emeritus and Senior Fellow in the VCU Center for the Study of Biological Complexity
http://www.people.vcu.edu/~mikuleck/
NATURAL
SYSTEM
FORMAL
SYSTEM
CAUSAL
EVENT
MANIPULATION
DECODING
FORMAL
SYSTEM
NATURAL
SYSTEM
THE MODELING RELATION: A MODEL OF HOW WE MAKE MODELS, A SCIENCE OF FRAMINGAND
ARE SATISFACTORY WAYS OF “UNDERSTANDING”
THE CHANGE IN THE WORLD “OUT THERE”
NATURAL
SYSTEM
FORMAL
SYSTEM
CAUSAL
EVENT
IMPLICATION
DECODING
FORMAL
SYSTEM
NATURAL
SYSTEM
THE MODELING RELATION: A MODEL OF HOW WE MAKE MODELSSYSTEM
NATURAL
SYSTEM
MANIPULATION
CAUSAL
EVENT
FORMAL
SYSTEM
NATURAL
SYSTEM
WHAT “TRADITIONAL SCIENCE” DID TO FRAME THE MODELING RELATIONSYSTEM
NATURAL
SYSTEM
MANIPULATION
FORMAL
SYSTEM
NATURAL
SYSTEM
WHAT “TRADITIONAL SCIENCE” DID TO FRAME THE MODELING RELATIONComplexity is the property of a real world system that is manifest in the inability of any one formalism being adequate to capture all its properties. It requires that we find distinctly different ways of interacting with systems. Distinctly different in
the sense that when we make successful models, the formal systems needed to describe each distinct aspect are NOT
derivable from each other
The Mexican sierra [fish] has "XVII-15-IX" spines in the dorsal fin. These can easily be counted ... We could, if we wished, describe the sierra thus: "D. XVII-15-IX; A. II-15-IX," but we could see the fish alive and swimming, feel it plunge against the lines, drag it threshing over the rail, and even finally eat it. And there is no reason why either approach should be inaccurate.
Spine-count description need not suffer because another approach is also used. Perhaps, out of the two approaches we thought there might emerge a picture more complete and even more accurate that either alone could produce. -- John Steinbeck, novelist, with Edward Ricketts, marine biologist (1941)
NO LARGEST MODEL
WHOLE MORE THAN SUM OF PARTS
CAUSAL RELATIONS RICH AND INTERTWINED
GENERIC
ANALYTIC SYNTHETIC
NON-FRAGMENTABLE
NON-COMPUTABLE
REAL WORLD
SIMPLE
LARGEST MODEL
WHOLE IS SUM OF PARTS
CAUSAL RELATIONS DISTINCT
N0N-GENERIC
ANALYTIC = SYNTHETIC
FRAGMENTABLE
COMPUTABLE
FORMAL SYSTEM
COMPLEX SYSTEMS VS SIMPLE MECHANISMS