Image is courtesy Wiki Paul Graham's Hierarchy of Disagreement is a concept proposed in his 2008 essay "How to Disagree"[1][2]. It categorizes different levels of disagreement, ranging from least to most effective: 1. DH0: Name-calling 2. DH1: Ad Hominem 3. DH2: Responding to tone 4. DH3: Contradiction 5. DH4: Counterargument 6. DH5: Refutation 7. DH6: Refuting the central point The hierarchy aims to help people make better arguments and have more constructive disagreements[1]. The lower levels (DH0-DH3) are considered fallacious or weak forms of disagreement, while the upper levels (DH4-DH6) are seen as more productive and convincing[1][6]. ## Recent work on similar concepts 1. Slate Star Codex: In 2018, Scott Alexander wrote "Varieties of Argumentative Experience," which expands on Graham's hierarchy by considering different types of arguments and their connections to provable or refutable points[2]. 2. Ingrid Taylar: In 2013, Taylar discussed the hierar...