Causal relationship is no doubt one of the most important targets for scientific research as well as for
philosophical study. But science and philosophy don’t have much in common in the search for causality. The reason is very simple. While in science the emphasis is usually put on how to detect a causal relationship of events, in philosophy it’s more important how to define causality. Some philosophers of science have attempted to bridge the gap. For example, SGS (Spirtes, Glymour, Scheines) attempted to give philosophical basis for statistical analysis of causality based on Bayesian Network. But in this attempt, they have almost abandoned developing traditional arguments of causality, i.e. turned away from providing a proper reductive definition of causality. So this is not exactly an attempt to fill in the gap. Another attempt is to take a pluralistic stance for the definition of causality. This can help in a way breaking the deadlock of reductionism in philosophy, but it has not been so successful in supplying the missing link with science, either in its two major forms, ontological or conceptual one.
In this paper, I will consider the possibility of the third kind of pluralism of causality, which can be derived from Broadbent’s argument. His argument originally aimed to relieve the tension between two attitudes toward causality, which are generally found in scientific researches. However, I think we can see another possibility of this argument as a different kind of pluralism of causality, which will not only bridge the gap, but will also change the direction of reductionistic arguments without discarding pursuit of strict definition of causal items.
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