One story at a time, written by hand and dated: evidence tier named, linked to whatever it rests on that SymbiQ already teaches, and carrying a “what this does NOT mean” section as standard. A human approves every story before it ships.
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5 Signals published so far. Newest first, every one names its source and says what it does NOT mean.
IBM and Chicago ran a hard, encoded circuit, and certified how good the answer was A 64-qubit circuit with 314 T gates, encoded in 76 physical qubits, with gate errors about ten times lower once runs that flagged an error were thrown out. The new part is not the size. It is the certificate.🟢 Proven2026-09-08
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Fujitsu has a diamond-spin quantum computer working — and has not said how big it is Tin-vacancy centres built into photonic integrated circuits, running at −271.6 °C. The temperature is the interesting number. The missing qubit count is the interesting silence.🟡 Heuristic2026-09-08
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A “quantum-safe” satellite link went live over Doha — and the word is doing two different jobs Arqit, Es’hailSat and AIEE ran quantum-safe key agreement across an operating satellite link with no hardware swap. Worth being precise about what was, and was not, quantum about it.🟡 Heuristic2026-09-08
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Xanadu put a date on 1,000 logical qubits — and published the number it has to fix first More than 1,000 logical qubits by 2031, fault tolerance in 2028–2029, a quantum data centre by 2030. Also: a photon-loss figure that has to fall from 24.1× to 1.0×. The second number is the honest one.🟡 Heuristic2026-09-08
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The building for Denmark’s quantum computer is finished. The computer is not. MAGNE’s Copenhagen facility cleared handover on 2 September; installation is only now beginning and full operation is expected in spring 2027. That makes a 2025 delivery promise measurable — and we just measured it.🟢 Proven2026-09-08
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How these notes are written
Each note is written by hand, dated the day it was written, and covers one story. Sources are primary: the paper, the announcement or the filing. AI drafts the first version; scripts check the numbers it quotes, and the admin approves every note. How we check says what each of those catches and misses.
There is no schedule and no automation behind this page. A note appears when a story is worth one, and some weeks there is none. Each note names its evidence tier and says what a reader might wrongly conclude from the headline.
The first five notes were all written on 8 September 2026 from sources published between 31 July and 8 September, so they are dated the day they were written, not the day their sources broke.