The source provides an in-depth analysis of the "996 work schedule" prevalent in Chinese tech companies, which mandates working from 9 a.m. to 9 p.m., six days a week. The article explains how this intense work schedule, which sparked the "996ICU" controversy in 2019, has recently resurfaced due to tragic employee incidents at companies like Pinduoduo and the rise of unmonitored "hidden overtime" with remote work. Furthermore, the text contrasts the legality of 996 under Chinese labor law with the philosophical defense of overwork by figures like Alibaba founder Jack Ma. Finally, the analysis uses survey data to highlight the widespread non-compliance with labor laws regarding working hours and overtime pay, offering solutions like stricter oversight of compensation and labor arbitration reform.