The noisy revolution of digital technology was preceded by a silent scientific revolution, which produced important results, raised fundamental questions and transformed the way we interpret notions that concern mathematical demonstration, the representation of information and human creativity itself. Understanding this transformation is the first fundamental step towards a greater awareness with regard to the changes generated by the digital age in which we are living. Bruno Codenotti and Mauro Leoncini tell us the great “silent revolution” that led to the lifechanging computer revolution, because even if algorithms and AI are part of our daily life... do we really know how they were created and how they work?