POSITIONAL SYNTACTIC

Attends by location or grammatical relation rather than content — a fixed offset, or subject-to-verb, modifier-to-noun. The broadest, fuzziest family. Shown on real BERT head 1, whose dominant attention offset is measured directly.
GREEN
2D · Quantitative Channel
CANVAS 2D
demo: sine — replace in draw2D()
CANVAS 2D UNAVAILABLE
3D · Spatial Channel
SOFT-GL · NO GPU · NO LIB
DRAG ROTATE · WHEEL ZOOM
demo: lattice + orbit — replace in build3D()/draw3D()
RENDER FAILED —
Notes

Positional / syntactic head. Attends by where a token is or how it relates grammatically — a fixed offset, subject→verb, modifier→noun — rather than by content. It is the broadest and least crisply defined family; many early-layer heads are largely positional. Shown on real BERT head 1, whose attention-offset histogram peaks at a measurable dominant offset. Green tier: real extracted attention; the offset is measured, not assigned.