Published online by Cambridge University Press: 01 January 2022
This article considers claims that biology should seek general theories similar to those found in physics but argues for an alternative framework for biological theories as collections of prototypical interlevel models that can be extrapolated by analogy to different organisms. This position is exemplified in the development of the Hodgkin-Huxley giant squid model for action potentials, which uses equations in specialized ways. This model is viewed as an “emergent unifier.” Such unifiers, which require various simplifications, involve the types of heuristics discussed in Wimsatt's writings on reduction, but with a twist. Here, the heuristics are used to generate emergent rather than reductive explanations.
Thanks to Jim Bogen, Carl Craver, Marcel Weber, and Bill Wimsatt for comments and to the National Science Foundation for grants 0324367 and 0628825. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author and do not necessarily reflect the views of the National Science Foundation.