Chapter 7 concludes the monograph with a summary of the lessons learned from previous scholarship on interactional language and how the Interactional Spine Hypothesis incorporates these lessons and insights. It is shown that a formal approach toward interactional language of this type allows for the development of a typology of interactional language, something that is currently missing in the literature. Potential cognitive underpinnings of the Interactional Spine Hypothesis are discussed and introduced as a new research agenda that has the potential to shed light on the old question regarding the relation between language, thought, and communication. Finally the chapter concludes with an outlook of potential novel research avenues to pursue in light of the Interactional Spine Hypothesis. This includes logophors, genre and style, information structure, the role of intonation, and the relation between speech act and clause-types.