Explore the principles and case studies of motives and super-representation theory in this 56-minute lecture by Yves André from the Institut des Hautes Etudes Scientifiques (IHES). Discover how the existence and shape of motives can be established using abstract motivic Galois theory, without relying on concrete constructions of algebraic cycles. Gain insights into this advanced mathematical topic as André, from IMJ-PRG, outlines the key concepts and applications. Access this scientific video and many others on CARMIN.tv, a French platform designed for mathematics and interdisciplinary research, offering specialized features for the research community.