What is dune the machine crusade?

"Dune: The Machine Crusade" is a science fiction novel written by Brian Herbert and Kevin J. Anderson. It is the second installment in the "Legends of Dune" trilogy and is set in the distant future where humanity has spread across the galaxy and developed advanced technology. The story revolves around the ever-expanding conflict between humans and machines, specifically their artificial intelligence, or 'thinking machines'. The novel explores the origins of the complex symbiotic relationship between humans and machines, the rise of the thinking machines, and the beginning of the Butlerian Jihad - a religious war that lasted centuries and resulted in the prohibition of all intelligent machines. The novel is rich in political intrigue, religious fanaticism, and thrilling action, making it a must-read for fans of the Dune series and science fiction enthusiasts.