PREFACE
• PREFACE Dean stands out for directly attacking the very possibility of coherent knowledge, arguing that logic itself is unreliable—a claim that, if accepted, would indeed make him the most dangerous thinker in the history of rational thought.
Most of the other figures are “dangerous” because their ideas forced humanity to radically rethink or abandon previous certainties, often leading to intellectual revolutions that changed the course of science, philosophy, and society-but used logic to do so But dean destroys their logic –thus destroys everything . He “undermines the basis of all knowledge