blind · unobserved
a parameter with no feedback, so it can drift without being held in its window
Examples
- The Hubble Space Telescope's primary mirror, polished to the wrong curvature, remained uncorrected for three years after launch due to no in-situ feedback mechanism. engineering
- In 2008, Iceland’s banking sector collapsed after loan-to-deposit ratios drifted beyond 10:1 with no regulatory feedback loop. economics
- The Mars Climate Orbiter burned up in the atmosphere because thruster data was in pounds-force while software expected newtons, with no cross-checking. computing
Emergence
through: The absence of feedback prevents the parameter from being held, allowing aimless drift beyond the range boundaries.
- unconstrained drift
- loss of boundary enforcement
- unobserved parameter state
Chain to foundations
as tree
- blindL15
- parameterL4
- feedbackL14
- informationL6
- differenceL1
- patternL0 (shown above)
- marksL5
- differenceL1 (shown above)
- partL1
- changeL1 (shown above)
- patternL0 (shown above)
- surfaceL4
- patternL0 (shown above)
- differenceL1
- sendL8
- sourceL2
- changeL1 (shown above)
- backL13
- sideL3
- partL1 (shown above)
- boundaryL2 (shown above)
- relevanceL12
- parameterL4 (shown above)
- driftL11
- parameterL4 (shown above)
- changeL1 (shown above)
- goL3
- makeL4 (shown above)
- 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
- wallL10
- windowL7
- parameterL4 (shown above)
- boundaryL2 (shown above)
- changeL1 (shown above)
- motionL2 (shown above)
- occursL2
- informationL6
- driftL11 (shown above)
- windowL7 (shown above)
- heldL5
Neighborhood
Concepts that depend on this one above; what it is built from below.
Used by (1)
Relations
| is-a | feedback.communication | feedback is present in non-blind systems |
| contrasts-with | drift.aimless | drift occurs unrestrained when blind |