Dr. Michio Kaku discusses cutting-edge theoretical physics including string theory, parallel universes, and the future of science. Kaku examines string theory as a potential theory of everything unifying quantum mechanics and relativity. The conversation explores the concept of parallel universes and the physics allowing multiple realities to exist simultaneously. Kaku discusses time travel, wormholes, and exotic possibilities emerging from theoretical physics. The discussion addresses the technological implications of advanced physics including teleportation and faster-than-light travel. Kaku examines consciousness and whether physics can explain the mind or if it represents something beyond current science. The broadcast explores Kaku's vision of humanity's future including colonizing space and transcending biological limitations. Kaku discusses the limitations of current physics and what breakthroughs might revolutionize understanding. The conversation addresses the relationship between science and spirituality and whether physics approaches metaphysical questions. Kaku examines what theoretical physics reveals about the nature of reality and the cosmos.