Forward test
Every instrument-day whose 24 bars have closed, since the first morning the box wrote. A day moved far when its excursion — the furthest the high rose above or the low fell below the 06:00 UTC close over the next 24 bars — was above the 90th percentile of the instrument's own three years: one day in ten by construction. Precision is the share of flagged days (score one or more) that moved far, the pre-registered reading (§7.27 part 6: at least 0.15, phase 34's holdout 0.187); recall the share of the large moves that fell on a flagged day (holdout 0.802).