Core Viewpoint - The article emphasizes the severe challenges faced by urban water systems in China during the rainy season, highlighting the impact of pollution on water quality and the need for a comprehensive, systematic approach to address these issues [1][2][5]. Group 1: Pollution Challenges - Most urban river systems in China are characterized by low flow and slow speed, leading to poor water circulation and weak pollution resistance [1]. - Continuous rainfall during the rainy season can exacerbate pollution due to inadequate urban drainage and pollution control, threatening both ecological environments and residents' water safety [1]. - Research indicates that urban water pollution loads can increase by 30% to 50% during the rainy season, with some older combined sewer systems exceeding 60% [2]. Group 2: Systematic Solutions - A systematic approach is necessary to tackle the issue of rainwater pollution, requiring comprehensive planning and management rather than isolated interventions [2]. - Source control should focus on urban planning, relocating pollution-intensive industries away from water sources, and enhancing overall pollution management [2]. - The construction of separate sewer systems is crucial, as many cities still use combined systems that lead to significant pollution during heavy rains [2]. Group 3: Pollution Interception and Treatment - Establishing a multi-layered interception system is vital for effective pollution control, including ecological interception zones and physical barriers to filter pollutants [3]. - Enhancing sewage collection and treatment systems is essential to manage the increased pollution load during the rainy season [3]. - Regular maintenance of rivers and drainage systems is necessary to prevent the release of accumulated pollutants during rainfall [3]. Group 4: Technological Empowerment - The implementation of smart drainage systems can significantly improve pollution control efficiency during the rainy season, utilizing real-time monitoring and data analysis [4]. - Cities that have adopted smart drainage technologies have seen over a 30% improvement in pollution control efficiency [4]. Group 5: Institutional Support and Public Engagement - Government policies and regulations must be strengthened to support collaborative governance across departments and regions [5]. - Public awareness campaigns are essential to educate residents about the dangers of rainwater pollution and encourage community involvement in management efforts [5]. - A collaborative approach involving residents in monitoring and reporting pollution can enhance the effectiveness of urban water management [5].

Core Viewpoint - The article discusses the unique journey of Cheng Lingfeng after leaving Tencent, emphasizing his pursuit of creative freedom and the development of his own philosophical framework through the lens of Tencent and broader societal observations [2][49]. Group 1: Cheng Lingfeng's Journey - Cheng Lingfeng transitioned from a Tencent journalist to a self-media entrepreneur, exploring various avenues of self-expression and commercial viability in the digital space [2][10]. - His departure from Tencent was motivated by a desire for freedom and the realization of the potential in self-media platforms like Weibo and WeChat [8][12]. - Cheng's early self-media ventures included innovative monetization strategies such as advertising and reader donations, which he successfully implemented [14][15]. Group 2: Philosophy and Creative Freedom - Cheng emphasizes the importance of creative freedom in media, arguing that true creativity is stifled in traditional media environments due to organizational constraints [16]. - He believes that the current generation of creators operates on a different level, characterized by a more intuitive and less effortful approach to information acquisition [33][35]. - Cheng's philosophical evolution reflects a shift from a focus on resume-based competition to a more profound, philosophical competition, suggesting that understanding systems is crucial for navigating the modern landscape [22][61]. Group 3: Observations on Media and Society - Cheng critiques the media's role in shaping narratives, acknowledging the responsibility that comes with the power to influence public perception [27][48]. - He reflects on the changing dynamics of social media, particularly the distinction between familiar and unfamiliar social interactions, and how this impacts platforms like WeChat and Douyin [39][40]. - The article highlights Cheng's belief that the essence of media lies in its ability to resonate with audiences, rather than merely relying on the creator's fame [19][20].