This chapter introduces the contributions by the six commentators and engages their diverse perspectives. We put the commentaries in conversation with our IC authority framework, addressing in particular three foundational issues: (1) our decision to set aside normative questions about IC authority; (2) our decision to refrain from hypothesizing about the beliefs that shape how different audiences respond to IC rulings; and (3) our decision to discuss the distinction between IC authority and IC power. In some cases, the commentaries provide a contrasting perspective to this book’s inquiry; in other instances, they are openly critical of its approach to conceptualizing and analyzing IC authority. At a basic level, they reveal how discussions of authority inevitably provoke deeper questions—about legitimation, about the importance of investigating actor beliefs, and about the complex ways in which power is exercised in law and in legal practice.