Recorded 04 February 2025. Cody Jones of Google Quantum AI presents "QEC below the surface code threshold II of II" at IPAM's Winter School on Quantum Error Suppression, Mediation, and Correction. Learn more online at: https://www.ipam.ucla.edu/programs/special-events-and-conferences/winter-school-quantum-error-suppression-mediation-and-correction/