The AI gold rush has tech firms embracing 72-hour workweeks, but at what cost? The article explores the controversial 996 culture, where employees work 9am to 9pm, six days a week, and its impact on health and productivity. It delves into the reasons behind this trend, from the rapid development of AI to the competitive nature of the tech industry. The piece also examines the potential risks, including health concerns and the legal implications of long working hours. Additionally, it highlights the differing perspectives on work-life balance, with some advocating for a reduction in working hours and a four-day week. The article concludes by questioning the sustainability of the 996 culture and the need for a more balanced approach to work.