After a while, the bent of his writing gradually turned towards science fiction, philosophy, and the exploration of the human psyche. A self-proclaimed eclectic, Chang isn't content to stay within established genres, but instead casts a wide literary net that encompasses history, philosophy, movies, and politics.
爾後，他的題材逐漸轉變為科學想像、哲學與心理剖析，自認是「雜家」的他並不滿足於文學創作的框限，寫作觸角寬廣，涉及歷史、思想、電影、政治等領域。