THE ROLE OF SELECTION IN FUNCTIONAL EXPLANATIONS

• Autor(a) principal: Sant’Anna, André Rosolem
• Data de Publicação: 2015
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Manuscrito (Online)
• Texto Completo: https://periodicos.sbu.unicamp.br/ojs/index.php/manuscrito/article/view/8641957
• topic: Natural selection. Functional explanations. Etiological theories

In this essay I will argue that natural selection is more important to functional explanations than it has been normally thought in some of the literature in philosophy of biology. I start by giving a brief overview of the two paradigms cases of functional explanations: etiological functions and causal-role functions. I then consider one particular attempt to conciliate both perspectives given by David Buller (1998). Buller’s trial to conciliate both etiological functions and causal-role functions results in what he calls a weak etiological theory. I argue that Buller has not succeeded in his construal of the weak etiological theory: he underestimates the role that selective processes have in functional explanations and so his theory may not be classified as an etiologial theory. As an alternative, I consider the account of etiological functions given by Ruth Millikan (1984) and I argue that Millikan’s theory is more comprehensive to assess contentious case in biology like exaptations. Finally, I conclude by analyzing where the adoption of Millikan’s theory leave us. I argue, contrary to Millikan and others, that once we assume the importance of natural selection in functional explanations, there is no strong reason to resist a linguistic reform of the word function and hence that the attempts to conciliate both etiological functions and causal-role functions are misplaced.