Endogenous measurement
Design claim A design principle of the instrument. Whether a given endogenous sentinel works is a separate, open question.
Source: Style sheet v22 ยง1.5
Definition (canon)
All quantities computed relative to the system's own recent history; the boundary is read where the node has drawn it, not assigned from outside.
In plain words
Measure the system against itself. Don't import a threshold from a population or a textbook.
It is not
- A claim that a particular sentinel is valid. A sentinel has to be validated: does it lose lock first, and by how much?
- Free of floors. An endogenous instrument has a resolution below which it is silent. See applicability floor.
What would defeat it
- Follows from the definition. A case where an externally assigned threshold predicts the node's branch reliably better than the system's own history does.
Where it is carried
Ledger rows
- L14 Hypothesis A coupled pair that loses lock before the structure it sits on fails could serve as an endogenous sentinel.