Legacy · kept for reference
Older rollups, retained for context. Going forward, run-related material is published in the machine-generated Experiment Runs feed.
One-page rollup
The minimum context needed to understand where the reports came from.
EXP-43, EXP-44, EXP-45, and EXP-58 establish the fp32/bf16 weight trajectories, sweep engine, scorecard contract, and R2-verified checkpoint collection.
EXP-47 finds fixed damped-linear projection at ratio 0.9396 with h_safe around 30 global steps; EXP-49 adaptive gains are real but sub-threshold.
EXP-60 and EXP-61 show consecutive update cosine near 0.15, so operational projection collapses to hold-stale except at the freshest anchor.
| Date | Name | Takeaway |
|---|---|---|
| 2026-07-08 | Signed-EMA α,β sweep | Moderate correction + fresh anchor is stable at 20/20; only the stalest anchor (β=0.90) collapses. |
| 2026-07-06 | Weekly update | Coherence-gated projection is the current design direction. |
| 2026-07-05 | Math-only ablation | Fresh-anchor projection clears about 1%; operational Math remains do-nothing-optimal. |
| 2026-07-04 | MOAT projector verdict | GSM8K win does not generalize; no universal projector default. |
| 2026-07-03 | Rank-1 trajectory analysis | Rank-1 state is useful for long-range position, not short-range displacement prediction. |
Older report set
These findings matter, but the duplicated full pages were removed from the publishing repo.
The same signed EMA merger is near the dense ceiling at K=5, but falls below the no-merger floor by step 100 at K=20. The diagnosis is stale/off-policy anchor gradients, with cadence as a secondary contributor.
The compressed trainer and rollout engine disagree too strongly for plain truncated importance sampling to cleanly absorb; this remains a separate correction path from anchor staleness.