Every number, against its measurement

Three caveats, because σ is measured against the experiment’s bar and the bar is not the same for every number. G: the same realised value reads −16σ against CODATA and +0.01σ against atom interferometry, and both rows are in the table so the reader can see the issue. CODATA’s bar on G is 22 parts per million, so a 360-ppm gap reads 16σ; the laboratory measurements of G disagree with one another by up to 540 ppm, twenty-five such bars, and the atom-interferometry value (LENS 2014, 6.67191 ± 0.00099 × 10⁻¹¹) sits 1 ppm from the realised value. A bar that tight on a constant the experiments cannot agree on is a statement about the adjustment, not yet about nature. On the scale above the CODATA row reads dead; the switch on G, KS-CCC.3, was registered to test direction — whether the consensus migrates down toward 6.672 as systematics close, within AP28’s one-per-cent bar — not magnitude against CODATA, and it stays live on those terms. There is one value of G. AP28’s first reading, +0.69%, was wrong: it omitted the arena’s holding of the break, which AP44 priced. It was withdrawn on 21 September 2026, superseded by the realised value, and kept on the record, dated (the dated note). The neutron’s fired row exposed the omission, and its consequences reached three derivations, revised at the wave (AP44, AP47, AP48). The age: +2.1σ on Planck’s bar, but the claim was registered one lane-time wide, ±0.66 Gyr, because an aware observer measures about one cycle. The switches fire on their registered conditions, not on 5σ by default: KS-45.1 registered ±1.2 and fired at 5.7σ on that width; on the honest ±14.9 it would have read 0.46σ. The registration was the error, and a fired switch is not repaired.