The article discusses the processes of constitution of unknown knowledge. The authors suggest that the image of the future (its cognitive pattern) is one of the possible options manifesting in one form or another (for example, as an element of a pattern) in the actual reality of the subject of knowledge. In addition, the research presents an analysis of various epistemological approaches to the problem of the formation of patterns of unknown knowledge in the context of the semiosis of a sociocultural phenomenon. In this article, the research focuses on the process (and its possible grounds) of creating / constituting new knowledge in the context of the transformation of the dynamical object (Charles Pierce). The current hypothesis of this study is that new knowledge, along with the process of its constitution, is not only largely predetermined by previous knowledge and existing cognitive patterns, but, in the context of the "open universe" thesis (Ilya Prigogine), it is possible to assume that this kind of constitutions, as well as the possibility of new interpretations of previous (long-known) knowledge, are infinite. The aim of this research is to identify elements (percipienda-an element that should be perceived) that can be used in patterns that describe the future and extrapolate our current ideas/patterns of the image of future taking into account possible inaccuracies / errors, etc., revealed in the course of time (the problem of falsification of knowledge). Knowledge as one of the sociocultural phenomena and one of the types of social practices has a number of features that give it the opportunity to create rational schemes. The interpretation of the bases of such schemes depends on our interpretation of the problems associated with percipienda. The following methods are used in the research: semiotic analysis and epistemological explication.