Current visualisation problem:
Dense or large brains make it difficult to remember where the current view sits within the overall knowledge structure. Conventional zoom mainly changes scale; it does not adapt the amount or meaning of information shown, so large views become cluttered and small views become uninformative.

Proposed improvement:
Provide a persistent, interactive mini-map showing the whole brain or selected region, the current viewport, major clusters, and the active thought. Make zoom levels semantic: show detailed thoughts nearby, summarized groups at medium scale, and major domains or supernodes at global scale.

Expected benefit:
Users retain global orientation, recover context quickly, and navigate long distances without losing their place, they can move smoothly between overview and detail while preserving meaning and reducing cognitive load.