Post crisis Strategies: Antifragility Principles as Catalysts for Urban Evolution Towards Sustainability

Urban crises reveal the true essence of cities: their ability to either withstand disorder or collapse under its pressure. This article explores how antifragility principles can transforms urban disruption into levers for reinforcement and innovation. While resilience seeks to restore a lost balance, antifragility goes further: it pushes cities to improve through shocks. Across a critical analysis of post-crisis strategies and the identification of fifteen fundamental theoretical principles, this work proposes a new framework, structuring a proactive and evolutionary approach to urban development. Medell\'in, Singapore and Fukushima already illustrate this dynamic, showing that adversity can catalyse profound transformations. By integrating institutional flexibility, strategic diversity and self-organization, antifragility poses itself as an alternative to the limits of resilience. Can this model really redefine the way cities adapt to crises? This article paves the way for a decisive reflection to rethink urban planning in an uncertain world.