Europe is converging on a definition of economic security as reduced dependence – de-risking, reshoring, buying European. This column argues that the definition is mistaken. Three decades of evidence on financial and production networks shows that resilience is a property of a node’s position in the network – the depth, diversity, and quality of its connections – not of the number of connections it has severed for self-sufficiency. Applying this test to critical input supply chains such as energy and defense – with Turkey, the EU’s largest customs union partner, as the defining case – the author argues that Europe passes the initiative’s ‘Singapore test’ only if it treats integration depth, rather than self-sufficiency, as the union’s security variable.