TY - JOUR TI - Semirealism or Neo-Aristotelianism? AU - Psillos, S. JO - Erkenntnis PY - 2013 VL - 78 TODO - 1 SP - 29-38 PB - Kluwer Academic Publishers SN - 0165-0106, 1572-8420 TODO - 10.1007/s10670-012-9418-z TODO - null TODO - Chakravartty claims that science does not imply any specific metaphysical theory of the world. In this sense, science is consistent with both neo-Aristotelianism and neo-Humeanism. But, along with many others, he thinks that a neo-Aristotelian outlook best suits science. In other words, neo-Aristotelianism is supposed to win on the basis of an inference to the best explanation (IBE). I fail to see how IBE can be used to favour neo-Aristotelianism over neo-Humeanism. In this essay, I aim to do two things. Firstly, I explain why this failure is not idiosyncratic: it should be there even by Chakravartty's lights. Secondly, I raise some critical worries about Chakravartty's semirealism, especially in connection with the concept of a 'concrete structure' and the detection/auxiliary distinction. The essay ends with a dilemma: an exclusive disjunction encapsulated in its title. © 2012 Springer Science+Business Media Dordrecht. ER -