Quantum Computing, Fault Tolerance, Error Correction, Logical Qubits.
https://www.youtube.com/watch?v=TJ6vBNEQReU&t=1231 “A logical qubit is a collection of a thousand physical qubits.” — The exact 1,000 number was stated by Eric Lucero, Lead Quantum Mechanic of the Google Quantum AI team on April 14, 2022. Google Quantum AI Update 2022