But for Chang Ta-chun Jin Yong represents a "black hole" of kung fu literature, and one of his main motivations for writing Chengbang was the urge to escape the gravitational tug of Jin Yong's work.
張大春向以金庸為「武俠黑洞」，欲極力擺脫的雄心，自是督促他創寫《城邦暴力團》的重要因素之一。