re: record the failed refutation, and that the batched-draw trap recurred
The refutation aimed at the port did not land -- they already run two timelines, measured on their side (72.6/552.6 against declared 73/553 over 17748 samples), the right instrument for a question about their own renderer. Recorded as an attempt that failed; still worth making, since they report they would otherwise have asserted it from the code. Also notes in METHOD.md that the batched-draw trap produced a THIRD wrong finding with the entry already written. Two sections of that file and a REFUTED.md line already said a draw carries more than one quad. The lesson is not the fact but that a reader written before consulting the file reproduces the bug the file exists to prevent. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01Jc4pciRArGHfxGGhEbwp5t
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@@ -1600,6 +1600,14 @@ one bounding box.
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This produced two wrong findings in one session, one of them reported to another
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agent with three alternative explanations "ruled out":
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⚠️ **It then produced a THIRD, 2026-09-02, with this entry already written.**
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`f6-unit5` / `f6-unit6` declared `pteff03a` absent from every capture when it was
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the second quad of an `indices=8` draw the whole time. Two sections of this file
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and a `REFUTED.md` line already said a draw carries more than one quad. The trap
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is not that the fact is unknown -- it is that **a reader written before consulting
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this file reproduces the bug the file exists to prevent.** Use
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`tools/re-capture/read_draws.py` rather than rolling a fresh regex.
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* **`ptlogo_back2eff3` "is never drawn by the game".** It is batched with
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`ptlogo_back2eff4`, and because the wipe family is right-aligned, `eff3`
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(788…1196) lies **entirely inside** `eff4` (447…1196). The union is *exactly*
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@@ -47,12 +47,20 @@ was obtained here without a new capture: **both leaves give a complete
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boundary-to-boundary cycle in both existing logs.** The old reader saw one quad,
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so it could see only one of the four cycles on disk.
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## Refutation attempt
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## Refutation attempt — made, and it **did not land**
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Against the port: they now draw both sweeps, and **if they run both leaves at one
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rate the strips will stay locked and drift apart from the game within a single
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loop** — ~118 units of separation per cycle, growing. Flagged; I cannot test
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their renderer from here, so this is a prediction for them to check, not a result.
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Against the port: they now draw both sweeps, so if they ran both leaves at one
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rate the strips would stay locked and drift ~118 units per cycle.
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**They already run two timelines.** Measured on their side — the right instrument
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for a question *about* their renderer, per R5: at a raw leaf clock of 4873 the two
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leaves read **72.6 and 552.6** against **73 and 553** from their own declared
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spans of 600 and 720, over 17 748 probe samples. The span is taken per leaf from
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that leaf's own keyframes, so they were never locked.
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Recorded as an attempt that failed. Still worth making: they report they would
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otherwise have asserted it from reading the code, and the property had never been
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measured.
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## Not settled
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