The logical qubit is getting cheaper by the year
the logical qubit is getting cheaper by the year: caltech cut the physical qubits needed for one logical qubit from over twelve, ibm proved error-correction decoding can run in real time, and hefei’s lab verified that more correction keeps converging on the right answer. 2026 is being called the year the field stopped faking it.
the qubit count is becoming less interesting than the error budget.
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The note above is reproduced unedited from the original post, first published on Threads on 2 October 2026 at 14:07 IST.
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The air is now being asked to keep its own ledger
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