essence · core
a parameter whose window is narrower than the window of persistence of the thing, such that drift beyond its wall ends the thing though parts persist
Examples
- The International Space Station maintains attitude control within ±0.5 degrees or solar arrays misalign, risking power loss. engineering
- A human body sustains blood pH between 7.35 and 7.45, or cellular metabolism fails despite organ persistence. biology
- The US Constitution remained operative during the 1861–1865 Civil War, though eleven states ceased participation. institutions
Emergence
through: Among the parameters sustaining a thing’s continuity, the one with the narrowest effective range acts as the limiting factor, whose unguided change across a threshold terminates the thing despite the ongoing existence of its components.
- limiting condition
- fragility under drift
- persistence dependence
Chain to foundations
as tree
- essenceL17
- parameterL4
- windowL7
- parameterL4 (shown above)
- rangeL3
- boundaryL2 (shown above)
- persistL1 (shown above)
- changeL1 (shown above)
- outsideL6
- partL1 (shown above)
- wallL10
- driftL11
- parameterL4 (shown above)
- changeL1 (shown above)
- goL3
- makeL4
- nothingL10
- noneL9
- differenceL1 (shown above)
- amountL8
- offL2
- spaceL0 (shown above)
- differenceL1 (shown above)
- noneL9
- wayL9
- spaceL0 (shown above)
- linksL8
- partL1 (shown above)
- connectsL7
- flowL3
- interactionL2 (shown above)
- persistL1 (shown above)
- structureL2 (shown above)
- broughtL6
- happenL2
- persistL1 (shown above)
- changeL1 (shown above)
- narrowL5
- partL1 (shown above)
- persistenceL16
- windowL7 (shown above)
- driftL11 (shown above)
- parameterL4 (shown above)
- maintenanceL14
- againstL15
- differenceL1 (shown above)
- directionL13
- lineL12
- pointsL2 (shown above)
- goL3 (shown above)
- point of no returnL11
- goL3 (shown above)
- changeL1 (shown above)
- keepL5 (shown above)
- workL3 (shown above)
- timeL0 (shown above)
- whetherL4
- conditionL3 (shown above)
- differenceL1 (shown above)
- stateL2 (shown above)
Neighborhood
Concepts that depend on this one above; what it is built from below.