"Excession" is a science fiction novel by Iain M. Banks, part of his renowned Culture series. The story revolves around a mysterious object known as the Excession, which appears out of nowhere and defies the known laws of physics. This enigmatic phenomenon captures the attention of the Culture, a highly advanced society of humanoids and artificial intelligences, leading to various factions vying for control and understanding of the Excession. The narrative intricately weaves together...