Ablating the zigzag: knocking out 'cat' changes nothing, only the tokens 'even'/'odd' matter

Sauers_ · x · 2026-10-20

Continuing the zigzag experiment, @Sauers shows via token ablation that removing "cat" from the prompt has no effect — the zigzag persists — while "even"/"odd" are required: merely mentioning "even" induces it. The attached figure further shows knocking out even/odd only in layers 0–3 already breaks the raise-on-even behavior, while raise-on-odd survives.

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