Abstract

‘Worldmaking’ is the antirealist doctrine that we make the known world with our concepts. It is Constructivism without a commitment to relativism. This chapter considers the relation between Worldmaking and the global response-dependency theory of concepts urged by Pettit. According to this theory _all_ concepts are of dispositions to produce a certain sort of response in normal humans in normal conditions. Pettit denies that this theory leads to Worldmaking. The chapter argues that he is wrong. The theory leads to the view that all _properties_ are response-dependent and this leads to Worldmaking. For that reason alone Pettit's theory of concepts should be rejected.