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Re: Why four categories of causation?



I don't think Rosen attempted to classify all causes into "Aristotle's four" until Anticipatory Systems. I think he found it a good metaphor, but in my opinion he overemphasized the four in later work to the exclusion of his theory of hierachies. Rosen's earlier papers on hierarchies emphasize the point that Tim made, ".  .  . to say that any system can be analyzed according to some particular mode of analysis would not entail that such an analysis is an exhaustive one." In fact Rosen says that one mode of analysis, i.e., one model, is necessarily inadequate for hierarchical (complex) systems (Rosen in Hierarchical Structures, Whyte, Wilson & Wilson, eds., Elsevier, 1969, p. 179).

I would argue that the concept of causality is only one, largely anthropomorphic, interpretation of a model and consequently we find it easy to imagine a hierarchy of causes corresponding to a hierarchy of models. Rosen says a hierarchically organized system is engaged simultaneously in more than one activity such that the same kind of system description is not appropriate for all levels of activity. It follows that one set of causes will not be appropriate for all levels of activity.

For example, the causal metaphors at the particle level of a Newtonian systems
will not be the same as the thermodynamic or quantum causal metaphors. Similarly, the molecular level causes  (as in LI, p. 413: phenotype = material cause, genome = formal cause, synthesis = efficient cause) will not be the same as the causal interpretations at the cell level, organ level, organism levels, cognitive levels, or artifact levels.

There are many other interpretations of causation. Since causality implies a direction to time (cause must precede effect) and since Newtonian and quantum mechanics are time symmetric (reversible) most physicist reject the metaphor of causality as misleading or at least unexplanatory at the microscopic level.

Many philosophers have agreed. Bishop Berkeley thought it obvious that causality has meaning only with respect to more complex systems where the concept of human power and control also make sense. When a plane crashes, everyone wants to know the cause. Of course the obvious cause was gravity, or not flying high enough, or taking off in the first place. What they really mean is, what behavior under human control could have been done differently such that the desired end result was possible.

Evolution based on heritable mutations (random noise) and natural selection (which is itself a bad phrase since nothing is literally selected) also pose a problem for Aristotelian causes. There are just too many levels and types of causes. Maybe Aristotle would have called evolution a final cause.

Howard