Level 21 — 45 concepts
Each concept here is built from components whose deepest is L20, so it stands 21 steps of emergence above the foundations. Depth is not difficulty or abstraction — it is the length of the chain needed to ground the word.
able capacityagency capacityairport transportarms race escalationauto vehiclebooks informationbrowser softwareburst your bubble one-waycognitive mentaldocument recorddown to earth levelemergent windowessence corefax communicationfederal governmentfrozen statehead in the sand unselectiveheat thermalheavy physicalhierarchy socialhomepage webimpossibility unreachablekeeping the lights on upkeeplegacy enduringletter writtenmagazine publicationmedical healthmedicine medicalmemory cognitivemetastable shallowmissing the forest for the trees abstractionold habits die hard pathpoker gamepolitical governanceprinter toolroad transportscar residualshoes clothingskill abilitystar celestialsubstrate levelthe way we have always done it path-dependencetough resilientwebsite digitalwell health