 Furthermore, some constructivists account for their lack of interest in semantics with the conviction that the semantic task with which traditional metaethics is preoccupied is positively misguided (Korsgaard 1996a, 2003; Street 2008a: 239). The philosophical issue worth thinking about is normativity, and this is not something that we can explain solely via semantics. For Kantians, explaining normativity requires philosophers to engage in philosophical investigation into the ideas of autonomy, agency, and practical rationality (see  section 7).