Science has not yet found a solution to the question of how cognitive mechanisms, which are crucial for the subjective processes of evaluating the reliability of information and doubt, are arranged. This ability is usually associated with both the pragmatic consequences of accepting a belief and the material substance of consciousness. In this article, the author proposes to compare one of the largest conceptions of doubt in philosophy, the pragmatic conception, with the theory of false tags, which was presented in the last decade by the neuropsychologist E.