Today more than ever we live in an accelerated society in continuous change (Rosa, 2013), an uncertain society in which we have to understand how to manage risk and contingencies. It is therefore pivotal to find new words, a new vocabulary and new competencies that can better help us to grapple with the contemporary society and provide the new generations with them. The physics of the ‘900, like quantum physics and science of complex systems, has proved particularly rich in this perspective as well as the technological revolutions in progress such as the Second Quantum Revolution at the heart of many investments today. Quantum technologies, exploiting the
capabilities of isolating, controlling, and manipulating the single quantum object and its properties, give to quantum physics a new perspective and provide new teaching and learning possibilities. In this contribution, we present an approach to the Second Quantum Revolution and, in particular, an activity on classical and quantum random walk designed to shed light on the ongoing scientific and technological advancement and in its making as well as to touch on some of the most important foundational and epistemological debates such as the differences between the epistemic and ontological probability, and the true randomness that characterize quantum physics.