Beyond exposing students to other frames of reference/perspective and insight the less formal objective here is to encourage rational communication (read as openly non-emotional/subjective) and exchanges perhaps even disagreement while keeping emotions in check. How peculiar and why someone might ask? When involved in discussion proponents of a contrary view will often use your emotionality as grounds for dismissing/discrediting your point of view and statements; since emotions are subjective “irrational” uncompromising-based positions that cannot be compromised with towards a mutually effective end. Heck, some people might even become emotionally angry and become….violent?