Jan Schaumann on Nostr: What Google did was demonstrate exponential error correction, which is critical due ...

What Google did was demonstrate exponential error correction, which is critical due to qubit fragility, requiring multiple physical qubits to be combined into one logical qubit to avoid a collapse into a classical state.

But the calculations they performed are not generic, general purpose calculations. Instead, they ran a specific type of computation, the random circuit sampling (RCS) benchmark:

https://research.google/blog/validating-random-circuit-sampling-as-a-benchmark-for-measuring-quantum-progress/