Who is the old man who talks about history?

Come on. According to official website's inquiry, "the old man tells history" refers to the famous historian Alai in China. Some of Alai's works have been adapted into movies. For example, the novel The Dust Settled was adapted into a movie of the same name, directed by Chen Kaige and starring Leslie Cheung and Gong Li. In addition, Alai's novel Sandalwood Punishment has also been adapted into a film, directed by Tsui Hark and starring Zhou Yong and Hao Lei. After Alai's works were adapted into movies, they also attracted extensive attention and discussion.