请问广东人，为什么水池里养的是银龙鱼？

Core Viewpoint - The article discusses the cultural significance and impact of the viral song "大展鸿图" (Great Ambitions), exploring its unique characteristics and the phenomenon of its popularity in both domestic and international contexts [4][5][10]. Group 1: Song Background and Popularity - "大展鸿图" is a rap song created by artists 揽佬 and 刘夫阳, included in their 2024 album "八方来财" (Fortune from All Directions) [13]. - The song gained traction in May 2023 when a TikTok user choreographed a dance to its first part, leading to over 1 million likes and 500,000 shares on the platform [13]. - By July 2025, 揽佬 topped the Spotify Chinese artist chart with 3.022 million monthly listeners, surpassing well-known artist 周杰伦 [13]. Group 2: Cultural Analysis - The article highlights the dual nature of the song as both a "土歌" (local song) and a "潮歌" (trendy song), indicating its appeal across different demographics and its evolution in perception [35][37]. - The song's title "大展鸿图" is often confused with "大展宏图," with the former receiving 20.8 billion views compared to the latter's 34 billion on Douyin, showcasing the linguistic nuances and cultural preferences in naming [22][23]. - The preference for "鸿" over "宏" in Guangdong culture is explained, linking it to local customs and beliefs regarding prosperity and aesthetics [24]. Group 3: Broader Implications - The article suggests that the popularity of "大展鸿图" may influence the usage of the terms "大展鸿图" and "大展宏图" in contemporary Chinese language, potentially altering their prominence in future discourse [26]. - The song's success reflects a broader trend where various music genres, including rap and jazz, increasingly rely on platforms like Douyin and TikTok for visibility and popularity [37]. - The cultural exchange facilitated by the song's international reach highlights the growing interest in Chinese culture among overseas audiences, as evidenced by the engagement of foreign friends with the song and its lyrics [30][31].