Quantum Computing, Fault Tolerance, Error Correction, Logical Qubits.
the realm of hundreds of (physical) qubits, and much more reliable qubits as well. At that stage, preliminary implementations of quantum error correction, with at least 5, 8, or 12 logical qubits will be feasible. It will take another two or three years to step up to 16 to 32 or maybe even 48