Explore a Computer Science/Discrete Mathematics seminar on locally testable codes with constant rate, distance, and locality. Delve into Irit Dinur's presentation from the Weizmann Institute, addressing an outstanding question in coding theory. Learn about the construction of codes based on left-right Cayley complexes, and understand their potential practical applications in efficient membership testing. Examine topics such as error correction, PCPs, high-dimensional expansion, and LDPC codes. Gain insights into the structure, definition, and parameters of these codes, as well as the algorithm used in their construction.