Explore a 42-minute lecture on twisted transition metal dicalcogenides and their role in testing quantum embedding theories. Delve into the complexities of quantum many-body theory and the importance of comparing controlled theory with controlled experiments. Discover how these materials serve as a crucial experimental platform for studying quantum phenomena. Examine the application of dynamical mean field theory and other quantum embedding techniques in simplifying complex systems to solvable models. Learn about the Hubbard model and its relevance in explaining experimental observations. Gain insights into the challenges and limitations of current calculations, and explore future research directions in computational materials science. Understand the collaborative efforts behind this work and its support from the NSF MRSEC program through the Center for Precision-Assembled Quantum Materials.