Explore the finite size scaling of the Eigenstate Thermalization Hypothesis (ETH) in the context of AdS/CFT correspondence through this 42-minute lecture by Taishi Kawamoto from the International Centre for Theoretical Sciences. Delve into the intersection of quantum gravity, quantum information theory, and many-body physics as part of the "Quantum Information, Quantum Field Theory and Gravity" program. Gain insights into how the AdS/CFT correspondence has revolutionized our understanding of quantum gravity, viewing spacetime and gravity as emergent phenomena from quantum information dynamics. Examine the application of quantum information tools to address longstanding problems in quantum gravity, such as the black hole information paradox, and discover how black hole physics informs our understanding of information scrambling in chaotic quantum systems.