Teranesia is a novel by Greg Egan. It is Egan's most character-driven novel to date. The novel's single hard science element deals with molecular genetics and quantum computing. However, most of the novel focuses on south-east Asian politics, repressed childhood guilt, evolutionary biology and academic life. There is some focus on sexuality: this time the lead character is merely gay (rather than some of the more advanced alternatives in other novels). One of the most memorable passages is a savage lampoon of some of the excesses of postmodernism.