Nima Arkani-Hamed - Why is Quantum Gravity So Significant?

Make a donation to Closer To Truth to help us continue exploring the world's deepest questions without the need for paywalls: https://shorturl.at/OnyRq 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: http://bit.ly/376lkKN Watch more interviews on Quantum Gravity: https://bit.ly/3wd6sZe Nima Arkani-Hamed (born 5 April 1972) is a Canadian/American theoretical physicist with interests in high-energy physics, string theory and cosmology. Formerly a professor at Harvard, Arkani-Hamed is now on the faculty at the Institute for Advanced Study at Princeton. Register for free at CTT.com for subscriber-only exclusives: http://bit.ly/2GXmFsP Closer to Truth, hosted by Robert Lawrence Kuhn, 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.