is not taught to reason by these rules; it has a native faculty to perceive the coherence or incoherence of its ideas, and can range the right, without any such perplexing repetitions.4 Recent scientific studies have confirmed that, at least with regard to some fallacies of reasoning, average people consistently detect illegitimate logic.5 The study concludes, In their reasonableness judgments, ordinary arguers consistently make a sharp distinction between discussion moves with and discussion moves