Over 25 centuries ago, the Greek philosopher and sophist Protagoras equated his famous notion of man ids the measure of all things with another that declared on every question there are two opposing answers, including this one. The purpose of "The Critical Double" is to demonstrate that this second Protagorean notion constitutes one of the fundamental principles of aesthetic and rhetorical theory.This work formulates, for the firs time, a succinct model for the deconstructive analysis of aesthetic discourse. While the stated purpose of this work is to redefine a critical methodology, its...