healthy · condition
inside the range of a parameter where the thing persists, and the work of keeping it there is less than the energy the thing produces.
Examples
- The human body maintains blood pH around 7.4; deviations beyond 0.1 disrupt cellular function and demand corrective breathing or kidney action. biology
- The International Space Station's thermal control system keeps internal temperatures between 18°C and 27°C despite external swings from -150°C to 120°C. engineering
- The US Federal Reserve targets 2% annual inflation, adjusting interest rates to keep the economy within that range since 1990. economics
Emergence
through: The components together regulate a parameter within a viable range by exerting maintenance effort, where persistence requires less work than the energy available.
- regulatory balance
- net energy surplus
- bounded resilience
Chain to foundations
as tree
- healthyL15
- windowL7
- parameterL4
- rangeL3
- boundaryL2 (shown above)
- persistL1 (shown above)
- changeL1 (shown above)
- outsideL6
- partL1 (shown above)
- maintenanceL14
- workL3
- parameterL4 (shown above)
- windowL7 (shown above)
- holdL13
- touchL3
- forceL12
- keepL5
- motionL2 (shown above)
- insideL5 (shown above)
- parameterL4 (shown above)
- energyL0 (shown above)
- persistL1 (shown above)
- insideL5 (shown above)
- keepL5 (shown above)
- rangeL3 (shown above)
- workL3 (shown above)
- windowL7
Neighborhood
Concepts that depend on this one above; what it is built from below.