Concepts exist in theoretical writing that theorists do not address directly.[13] These tacit concepts, which supply the ontological categories, enable a more detailed comparison of theories beyond specific terminologies.[13] Divergences between theories can be concealed behind common terms used by different theorists.[13] A false sense of understanding often arises from a cursory, uncritical reading of the theories.[13] Discontinuities and gaps are revealed within the theoretical literature when the tacit concepts are elicited.[13]