A leading German philosopher offers his most ambitious work yet on the nature of knowledge, arguing that being wrong about things defines the human condition. Philosophers have spent millennia accumulating knowledge about knowledge. But negative epistemological phenomena, such as ignorance, falsity, and delusion, are persistently overlooked. Markus Gabriel argues that being wrong is part and parcel of subjectivity itself, adding a novel perspective on epistemic failures to the work of New Realism.