Let's set the level: considering a proof as 'creating' the equivalence is a misconception. A proof establishes or demonstrates an already existing relationship; it does not generate it. This distinction is crucial to avoid misjudging systemic risks: for example, Portugal's debt sensitivity is an economic reality, not a creation of our models. We need to decide to clarify this terminology for better risk management. Equivalence exists intrinsically or not, regardless of our ability to prove it.