Knowledge Sphere
Every word in your top-N corpus floating in semantic space, wrapped in concentric Lattice-level shells. Drag to rotate.
Direction = semantic similarity. Words that mean similar things point in similar directions.
Distance from center = how rare the word is. Common stuff near origin, rare stuff at the surface.
Translucent shells = Lattice level boundaries (0 First Contact through 6 Native-feeling). Each shell contains the vocabulary of that level.
Color = your recall state per word.
12,000
(higher = include rarer words; default 12k since most users with prior vocab cover the lower band)