Normative error theorists maintain the view that normative judgements ascribe normative properties, but these normative properties don’t exist. Many philosophers have tried objecting to this view, like Case (Australasian Journal of Philosophy, 98(1), 92–104, 2019) arguing that it faces self-defeat. Others, like Streumer (Journal of Philosophy, 110(4), 194–212, 2013), have argued that it can’t even be believed because beliefs (in the full, rational sense) possess certain normative requirements. So, there is no self-defeating ‘belief’ in normative error theory. Recently, Taccolini (European Journal of Analytic Philosophy, 20(1), 131-154, 2024) has accepted that Streumer’s response to self-defeat might work, and builds a stronger self-defeat argument. The argument attempts to illustrate that one cannot defend the normative error theory, regardless of whether they believe it or not. In response, we illustrate various plausible interpretations of ‘defense’ that are consistent with error theory, thereby diffusing the modal objection that one can’t defend error theory.
