Applicability floor
Definition Observer-side. Never share phrasing with the regime floor.
Source: Style sheet v22 §1.5
Definition (canon)
Sampling density and event count below which the instrument is silent, not wrong. A null under the floor is not a refutation. Observer-side. Paired with the regime floor — see §1.8, and never share phrasing with it.
After the erratum the floor binds for a new reason. A load-bearing node is now diagnosed by the absence of a cascade, and an absence cannot be told from too few events to fit a distribution unless the event count is checked.
In plain words
If the instrument can't see small enough or often enough, "nothing found" means "nothing could be found", not "nothing there".
It is not
- The regime floor, which is a property of the system, not the instrument.
- A licence for any absent signal to be blamed on a coarse record. The corpus fences that escape hatch explicitly.
What would defeat it
- Follows from the definition. Showing that a null below the stated floor was in fact informative, in a case where the same instrument later resolves what was there.
Where it is carried
- Two Hundred Thousand Miles From a Second Opinion Story
- Odd Sympathy Story
- “Silent, not wrong.” Line
- “A newcomer is not a low score. She is no score yet.” Line
Ledger rows
- L30 Design claim Below a minimum amount of observed work, a trust engine should report insufficient evidence, not a low score. A newcomer is not a low-trust member.