Summary of Parallel Worlds

Parallel Worlds is a non-fiction book written by astrophysicist Michio Kaku, exploring the implications of the two main theories of physics:string theory and the quantum theory. The book looks at the implications of the melding of these two theories and the possible realities that could result. It examines the possibility of parallel universes, time travel, and a "theory of everything", which could unite the currently fragmented theories into a single unified theory. The book also looks at the growing field of astroparticle physics and its application to cosmology, and explores the randomness of the universe, its structure, and the limits of knowledge.