If Thomas Kuhn’s paradigm shift is detached from its scientific origins and redeployed as a diagnostic across cultural production, it reveals not linear stylistic progress but discontinuous epistemic ruptures in which each field redefines the contract between intelligence and its material substrate—spatial, visual, temporal, bodily—exposing the histories of urbanism, architecture, painting, photography and allied practices as successive regimes of truth; we now inhabit the early consolidation of a fifth paradigm that metabolizes sacred geometry, hygienic machine, perceptual ecology and speculative asset into a relational, planetary and reparative field where collective space functions as a contested metabolic interface adjudicating rights, affects, infrastructures and limits simultaneously. This reframing treats paradigm change as a heuristic for tracking how civilizations alter what collective intelligence must perform. In urbanism the passage from Hippodamus’s gridded epistemology through Cerdà’s hygienic network, Jacobs’s complexity and Gehl’s bodily proximity marks ontological reassignments: the city ceases to diagram order and becomes the site where order is renegotiated under industrial pressure, welfare and extraction. In painting, Renaissance unification yields to Manet’s self-exposure, Cubism’s fracture, abstraction’s autonomy and Richter’s oscillation between blur and precision. Theory functions as immanent operator: Lefebvre’s production of space frames every rupture as redistribution of visibility and power; McHarg and Waldheim supply metabolic substrate. Earlier regimes survive only as fossils within the new frame. In practice the shift appears in Lacaton & Vassal’s addition and reuse, treating fabric as active substrate. In photography Eggleston’s chromatic banal and Moriyama’s grainy abrasion dismantle typology, while Goldin and Salgado entangle the medium in extraction and intimacy.
Under algorithmic governance, climate thresholds and precarity, the fifth paradigm demands interventions at relational coexistence, where right to the city intersects infrastructural sovereignty and symbolic repair. Criticism becomes cartographer of overlapping ruptures, naming the emergent regime before it hardens. The opportunity lies in provisionality—holding the paradigm open so practice metabolizes contradictions without reverting to coherence or spectacle. What is at stake is the collective capacity to redefine truth once prior contracts have been exhausted. The Kuhnian tool renders the present legible as a moment of decisive, still unstable redefinition.
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