What is "Evidence Based Medicine" if not "Medicine Based on Observation" after the impact of this Revolution on our work methodology? The observations, now more commonly called "data", are produced by the millions and at an unexpectedly fast pace. The analysis of this data generates information and knowledge at a fraction of the time that it takes us to incorporate them into our medical practice. To deny that this offers us endless opportunities, whether diagnostic, therapeutic, preventive, rehabilitative, etc., is to deny the Evidence. But we cannot overlook the shadows...