# 27. Rhetorical manipulation ## 27.5. Methodology/Refinements/Sub-species ### 27.5.1. Cognitive Appeal #### 27.5.1.4. Appeal to Ignorance Claiming that something is true because it hasn't been proven false (or vice versa). Examples abound in discussions of the supernatural. Normally we have no way of proving that a supernatural phenomenon is not real and so we are obliged to accept that it could be. The glass seems to move on the Ouija board and no-one has proven that it is not the result of a supernatural event, therefore it is true. ***Parent:** [[Cognitive Appeal]]*