The article criticizes the internalist approach to the philosophy of mind. First, it uses Popper's evolutionary grounded thought experiment, to claim that the study of intentional mental states should proceed by accounting far evidence from the surroundings of the organism. Then, the syntactic position in psychological research is presented as being compatible with internalism, as the view that research should be centered on the processes in the organism only. It is then argued that processes inside the organism crucially depend on external factors.
