This paper presents an analysis of the mathematical models of the prevailing orthodoxy within the field of financial economics in light of the financial crisis. The financial crisis presents a challenge to the language of orthodox financial economics. From an Austrian perspective, this challenge to the language of orthodox financial economics is centred on a small number of pressure points stemming from the mathematical-quantitative nature of the prevailing orthodoxy, especially the distortion of or obstruction to the communication of pertinent ‘knowledge’ by the adoption of a formalism that pushes aside many of the most important aspects of the human action represented in financial markets. The result is a crystalline structure of mathematical models that suffer from serious salience imbalance. The highly salient features of mathematical objects are not directly applicable to and have a low salience in the list of features of the financial economic reality. The financial crisis has accentuated this salience imbalance. The orthodoxy has experienced a financial crisis of metaphor.