The quote in the title comes from an expert interview in recent research. It illustrates the foundational fact that Luxembourg has considerably more economic power and dynamism than its size and institutional setup would allow it to accommodate. This is the basic problem that runs through all development and planning conflicts, reinforced by institutional and procedural complexity and inertia. Appropriate strategies need to be structural. However, current practice consists of micromanagement rather than strategy. It thus reveals three different sorts of illusion: a growth illusion; a steering illusion; and a sustainability illusion. The lecture will close by reflecting upon some thoughts on how to address structural challenges. ; U-AGR-7115 - C21/SC/15872360/FINCITY (01/06/2022 - 31/05/2025) - HESSE Markus