As part of a series that seeks to unpack fundamental mysteries in theoretical physics, Quanta Magazine met with Vijay Balasubramanian of the School of Arts & Sciences to discuss science’s biggest problem: space-time. Balasubramanian says that at the smallest conceivable scales, “the laws of nature break down. The stage of our universe, space-time, seems to dissolve, and we can’t make sense of the awful chaos underneath. To dig into the deepest layers of reality, we’re going to need new physics.” Watch full video here