Ross Kennedy is Clinical Associate Professor at the University of Otago in Christchurch, New Zealand. Out of his interest in low flow and closed circuit anesthesia, he developed his own predictive display of the relationship between fresh gas flows, vaporizer settings, end-expired and effect site partial pressures of inhaled anesthetics, a pharmacokinetic/pharmacodynamic visual display “avant-la-lettre”. His interest in the Navigator was the next logical step, which he addressed at NAVAt II. But he has also been studying patterns in fresh gas flow usage upon introduction of new low flow devices, and has looked into means to encourage anesthesia providers to sustain the use of low fresh gas flows. He will explain “What *you* can learn from your anesthesia machine” using modern data management tools.