 Of course, there may well be other models of necessity available. For example, it is sometimes suggested that a neo-Kantian interpretation of social constructionism is possible, an interpretation on which our socio-linguistic activities could provide a transcendental basis for any knowledge of the world. Such an interpretation might allow certain apparently radical constitutive claims, but the challenge would remain to reconcile the view with a naturalistic conception of ourselves, something such a proposal may fail to do (e.g. Boyd 1992, Rosen 1994).