Seth Lloyd - Why is Quantum Gravity So Significant?

Quantum theory explains how particles and fields work. General relativity, discovered by Einstein, explains how gravity generates the structure of the universe. But the two great theories of physics and cosmology are not compatible. But this is impossible because both describe reality. Only a solution to quantum gravity can solve the huge problem. Free access to Closer to Truth’s library of 5,000 videos: Watch more interviews on quantum theory and quantum mechanics: Seth Lloyd is a professor of mechanical engineering at the Massachusetts Institute of Technology. He refers to himself as a “quantum mechanic“. Register for free at for subscriber-only exclusives: Closer to Truth presents the world’s greatest thinkers exploring humanity’s deepest questions. Discover fundamental issues of existence. Engage new and diverse ways of thinking. Appreciate intense debates. Share your own opinions. Seek your own answers.