Architecture is used to think about the world, not just to build it. Manipulating the notions of limits, servitude, assignment, porosity, the commonplace, climate, neutrality, flexibility, reversibility and globally arranging space is a good preparatory exercise to re-arrange our relationship with the world, and first and foremost with society. The operating methods and tools of architectural practice have the capacity to shed light on the out-of-scope of the contemporary world. Convinced of the powers of what we call "archi-thinking", AHA encourages diversions into new fields and reverses points of view in the hope of turning the situation around.