Artificial intelligence (AI) is revolutionizing the professional world, opening up new possibilities. Among these is the vision of a three-day work week. Recently, billionaire and founder of Microsoft, Bill Gates, has become a champion of this vision of the work world. An idea that finds support in the business community, notably with banker Jamie Dimon. The prospect of a working world operating on a three-day work week can seem enticing at first glance. But it still raises debates surrounding its feasibility and potential implications. In this article, we examine the sustainability of this perspective and its potential implications.