To traverse an intellectual field is not to pass superficially across many disciplines. It is to move through their internal structures, accept the resistance of their concepts and emerge with a transformed position. Architecture, urbanism, epistemology, ecology, pedagogy and media theory cannot simply be assembled as adjacent territories; each contains distinct objects, scales, evidentiary standards and histories of conflict. A transdisciplinary field becomes credible only when it crosses these differences without pretending they have disappeared. Traversal requires enough proximity to understand a concept from within and enough distance to test what happens when it enters another domain. Lefebvre’s space changes when carried into archival design. Foucault’s archaeology changes when applied to digital corpora. Habraken’s levels acquire another dimension when used to organize knowledge infrastructures. Bowker and Star’s classifications become newly visible within machine-readable systems. Benjamin’s montage changes when fragments can be linked, searched and recombined at scale. In each case, the concept is neither left untouched nor dissolved into the receiving field. The transformation becomes part of the knowledge produced. The route must remain reconstructable: what was taken, where it was modified, which friction appeared and what new operation became possible. A traversal without provenance is appropriation; a traversal without transformation is tourism. The method strengthens a field because it turns external thought into internal structure while retaining the history of the crossing. Traversal is the passage through which inheritance becomes construction.