You are in The Observatory.
Ground you have walked is named. The rest is drawn but unnamed — it is waiting, not missing, and nothing is required of you to find it.
Every realm is named here, and its rooms fold open beneath it. The mark beside a name says which ground you have already walked.
Every door stays where you left it. Esc folds the map.
The Energy axis of the ontology (from gaia ontology.ts).
no edge in this scheme