Explore the intricate world of duality within the Symmetry Topological Field Theory framework in this comprehensive lecture from the Prospects in Theoretical Physics 2024 series on Ultra-Quantum Matter. Delivered by renowned physicist Xie Chen from the Institute for Advanced Study, this 71-minute talk delves into the first part of a complex topic at the forefront of theoretical physics. Gain insights into the latest developments and theories surrounding symmetry topological field theory and its applications in understanding ultra-quantum matter. Suitable for advanced physics students and researchers, this lecture offers a deep dive into cutting-edge concepts that are shaping our understanding of quantum systems and their symmetries.