Defense: Implements wiki/interface/thought-fluid.md's adopted intertwined-path material clause and criterion 6: close high-rate Thought now forms a broad asymmetric sheet from two continuous paths, and their rate/phase-derived separation creates and seals the strain window without a subtractive bore or second simulation state. Preserves wiki/art/effects-lab.md's LOD boundary by changing only the cached close implicit frames; medium and far remain compressed representations.