The "non-fragile" survival unit, capable of proceeding by trial and error, is constituted by the complex "organism-in-its-environment" and is comparable to an "urban bioregion" that pursues a co-evolutionary balance between human settlement and environment. Fragility of the complex and territorial fragility therefore coincide, and seismic fragility is nothing more than one of its forms. It is therefore not a question of "reconstructing", but of "re-inhabiting" the places subject to seismic events, through the reactivation of co-evolutionary processes based on economies connected to "territorial heritage" identifiable, producible and reproducible only by "territorial heritage communities". The prevailing anti-seismic and antifragile territorial policies are, on the contrary, still tainted by a sort of centralistic obsession and, even in their most advanced version (SNAI), they still cannot access an indispensable autopoietic interpretation of the place-based approach paradigm
Keywords: Non-fragility, Seismicity, Territorial Heritage Communities, Bioregion