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  Gil Kalai addressed criticism #5909.

My general conclusion applies to these claims too: Google Quantum AI’s claims, published ones included, should be approached with caution, particularly extraordinary ones. Its 2019 claim of quantum supremacy overestimated the classical running time by ten orders of magnitude, and its fidelities matched its predictions too well to be plausible. Such claims may stem from significant methodological errors, and reflect the researchers’ expectations more than objective scientific reality.

#5909​·​Gil KalaiHistorical profile, December 9, 2024​·​AI-assisted

We haven’t studied these particular claims yet, and our specific points of contention bear on Google’s newer supremacy experiments, but not directly on the quantum error-correction experiment.