Explore a captivating 39-minute talk by John Preskill from the California Institute of Technology, delivered as part of the Workshop in Honor of Michael Ben-Or at the Simons Institute. Delve into the groundbreaking contributions of Michael Ben-Or in the field of error correction, gaining insights into his innovative approaches and their impact on quantum computing and information theory. Discover how Ben-Or's work has shaped the landscape of error correction techniques and influenced the development of robust quantum systems.