Something Deeply Hidden: Quantum Worlds and the Emergence of Spacetime

Sean Carroll, a theoretical physicist and science writer, presents an interpretation of 20th century physics centered on quantum mechanics. The book argues that the Many Worlds Theory—which posits that quantum events cause the universe to split into multiple branches where all possible outcomes occur—resolves fundamental problems in quantum mechanics that have been overlooked since 1927. According to this theory, countless copies of every person exist across these branching worlds, created continuously as quantum events occur. Carroll contends that accepting this framework reconciles quantum mechanics with Einstein's theory of relativity and addresses long-standing gaps in physics that have been dismissed or avoided by the scientific community. The book systematically addresses major objections to the Many Worlds interpretation and explores how this understanding transforms our conception of space, time, and humanity's place in the universe.