This article discusses the relationships between law, artificial intelligence and big data from a socio-legal perspective. The author wonders about the extent to which these technologies can pave the way to a kind of algorithmic legal regulation, consisting of unequivocal signals that would produce effects automatically, whereas law consists of signs to be interpreted by social actors and relies upon the decisions made by "third parties" in case of conflicts. Following this reasoning, he subjects the different levels of a legal system - i.e. legislation, contracts, administration and the judiciary - to separate examinations, shedding light on what a legal system has already achieved through access to new technologies, as well as on the hitherto unresolved doubts about how far these can go in the world of law. The article ends up by stressing that, as is already well known, the algorithmic revolution may put basic constitutional rights in real jeopardy, and by framing other questions about its impact on legal culture and legal education.
Keywords: Law - New communication technologies - Signals vs. Signs - Automation vs. Decision - Achievements and Doubts