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What Actually Broke When Labeling Egocentric Hands

A few ablations from labeling first-person kitchen video — box IoU vs mask distance, sticky long contacts, and why I stopped asking a VLM to re-cut them.

Fold-Lab Notes: When Two Folds Look the Same

Side notes from a personal origami tooling project — why foldable sheets are awkward for video predictors, and an early attempt to measure that gap.