What this means is that information is organized in subjects. You might be studying math, finance, computer science, programming… every subject is organized into hierarchical sets of subcomponents. At the latest level, we have what I can define as information: the smallest atomic component of knowledge of non-fixed length that is enough to constitute a defined partition of a subject. For example, in statistics (subject), the normal distribution can be considered an argument. The same for derivatives, limits, integrals, functions… Each subject has a myriad of arguments located at different levels of the knowledge tree.