Analogies or Ontologies? On the Unreasonable Effectiveness of ‘Code’ in the Life Sciences

Abstract

How and why, historian of science Lily Kay asks, did the ‘biological problem of DNA-based protein synthesis’ come to be represented ‘as an information code and a writing technology?’ What sort of metaphor was ‘code’ for these bio-geneticists? One whose run-away expansion, Derrida noted in Of Grammatology (1967), urgently required philosophical justification. Yet, 60 years later, there is still fundamental disagreement about its meaning and epistemic status. If the metaphor lacks ontological purchase, what accounts for its effectiveness? If, on the other hand, scriptural metaphors get at the common root of culture and biology, what do we now mean by ‘code’? In this article, I trace several influential accounts of the metaphor’s effectiveness—making explicit the opposing notions of ‘code’ that animate them—and argue that each is too limited. Greater attention to the metaphoricity of ‘code’ yields a more philosophically productive and critical account of the metaphor of code.