Bart Streumer defends an error theory that suggests that all moral and other normative judgements are false; and then he argues that we cannot believe this theory. But this need not be a problem: Streumer holds that to make philosophical progress, we need to make a sharp distinction between a theory's truth and our ability to believe it.
The book presents Bart Streumer's defense of an error theory positing that all moral and normative judgments are fundamentally false. He further contends that it is impossible to genuinely believe in this theory. Despite this paradox, Streumer emphasizes the importance of distinguishing between the truth of a theory and our capacity to accept it, suggesting that this differentiation is crucial for advancing philosophical understanding.