Snow Crash is a science fiction novel written by Neal Stephenson. It is set in a near-future where the internet has evolved into a virtual reality called the Metaverse. The protagonist, Hiro Protagonist, is a hacker and pizza delivery driver who gets caught up in a conspiracy involving a dangerous computer virus called Snow Crash. The book combines elements of cyberpunk, virtual reality, and ancient mythology to create a thrilling and thought-provoking story.