We need not make specific distributional assumptions about the evaluators; rather, we simply assume that their opinions are drawn from some underlying distribution with a few basic properties. Specifically, let us say that a function f : R → R is µ-centered, for some real number µ, if it is unimodal at µ, centrally symmetric, and C2 (i.e. it possesses a continuous second derivative). That is, f has a unique local maximum at µ, f0 is non-zero everywhere other than µ, and f(µ+x) = f(µ−x) for all x. We will assume that both positive and negative evaluators have one-dimensional opinions drawn from (possibly different) distributions with density functions that are µ-centered for distinct values of µ.