Constitutional Safety — A Foundational Interaction Geometry for Living Together

Modern societies increasingly rely on complex integration among humans, technologies, and contexts, yet often lack clarity about the conditions under which living together remains legitimate and enabling. This paper introduces constitutional safety as a foundational concept that precedes design, governance, and architectural formalisation. Constitutional safety is defined not as a technical feature, legal instrument, or optimisation goal, but as a load-bearing condition of society: the shared commitment that living together must not render individuals physically, socially, or psychologically disposable. The paper distinguishes between natural viability, which allows life to exist, and constitutional safety, which allows society to exist legitimately. It introduces the notion of integration space as the habitable volume created when this foundation is sufficient, enabling opportunity, resilience, and freedom while acknowledging constraint and interdependence. Using a minimal architectural metaphor, the paper clarifies the roles of foundations, lived safety floors, boundary conditions, and technological amplification, and explains why increasing technological power places greater load on societal foundations. Rather than proposing a framework or method, this paper articulates the conditions under which architectural and systems thinking become necessary. It shows how societies often substitute insufficient foundations with control, optimisation, or technological reinforcement, leading to false stability and fragmentation. By making these conditions explicit, the paper establishes a normative and structural ground for subsequent architectural articulation of interaction and integration. This work builds on earlier efforts to articulate relational and holistic perspectives on safety and interaction, in which local actions are understood to propagate across human, system, and contextual domains. This paper is written for those involved in shaping societal systems—designers, engineers, policymakers, and scholars—who must reason about safety under increasing complexity—for interdisciplinary reasoning about safety, integration, and legitimacy prior to design and governance choices.