This chapter calls Haraway’s cyborg as an analytical condition for understanding social life. The central concern is not a narrative in which society has only now become cyborg, but the fact that hybrid relations have gained visibility, density, and collectivity to the point that they can no longer remain a peripheral background in human-computer interaction (HCI) research. AI does not operate as a single tool or an isolated interface. It is layered into communication infrastructures, organizational routines, domestic arrangements, and cultural practices. Social life is therefore organized not as the sum of individual interactions, but in the form of sociotechnical configurations. To study this condition, the chapter proposes a research orientation in cyborg social dynamics. This is not a concept that declares the essence or sociality of AI. It is a request to recalibrate analytic resolution. More specifically, it expands the unit of analysis along three directions. It moves from a single AI to multiple AI systems, from human-AI interaction to the reconfiguration of human-human relations by AI, and from dyadic scenes to the organization of groups, organizations, and communities. The cases of Beau, Areca, and ShamAIn demonstrate that relationships with AI are always entangled with care, responsibility, norms, and evaluation and never remain confined to the individual. Taking these experiences seriously, therefore, requires tracing the social conditions of relations themselves. Cyborg social dynamics offers a perspective for reading more precisely the conditions that make personal experience possible. Instead of prescribing methods, the chapter emphasizes an epistemic stance shared by situated knowledge, case-based reasoning, and field-based inquiry. In doing so, it prepares the ground for the next chapter, which more concretely examines how intimacy, hierarchy, care, and authority are reconfigured in conjunction with AI.