"The Long Earth" (novel)

"The Long Earth" is a science fiction novel by Terry Pratchett and Stephen Baxter that explores the concept of infinite parallel worlds. It depicts a future where a device called the "stepper" allows humans to explore countless alternate Earths, each with variations in environment and civilization. The story follows characters who venture into these worlds, confronting questions of existence, identity, and societal change. The novel examines how the ability to access multiple realities impacts humanity, highlighting themes of exploration, curiosity, and the potential for both progress and unforeseen consequences in a universe of endless possibilities.