Abstract: recent developments of Artificial Intelligence based on machine learning techniques through Big Data raise multiple ethical and legal concerns, all of which ultimately do turn around the issues of responsibility, which is increasingly invoked not as a remedy but as a character which shall shape the whole development process of AI as well as its functioning. The characters of AI, taken in its technical and social role, challenge some established ideas related to human agency, namely responsibility. Recently two scholars like Jack Balkin (director of the Yale Information Society Project he founded on 1997) and Frank Pasquale (author of The Black Box Society: The Secret Algorithms That Control Money and Information, 2015) proposed “n...