# Study 000N

## Name

`Prospective Envelope-State Markers`

## Status

`Study complete.`

## Core Question

`What measurable markers best define transitions between envelope states in advance rather than after the fact?`

## Why This Study Exists

The archive already supported:

- adaptive-envelope behavior (`000I`)
- strong support-factor candidates (`000H`)
- state-conditional support architecture (`000J`)
- more than one successful low-burden mode (`000K`)
- ecological narrowing as part of the compensation phenotype (`000M`)

What remained unresolved was whether the archive had any `prospective` state markers that could be read before a run rather than inferred only from the outcome afterward.

## Headline Finding

`Yes, supported in constrained form.`

The archive supports a `prospective marker family` rather than a `single universal threshold`.

The strongest pre-run markers are:

- `local running-share context`
- `treadmill-neighbor density`

Together they organize:

- a `contracted high-risk outside-expression state`
- a `mature supported boundary-expression state`

But they do **not** fully capture the early long-settled low-embedding success mode on their own.

So the best full-program reading is:

`prospective envelope-state markers exist, but they are mode-sensitive rather than globally threshold-stable`

## Key Outputs

- `reports/STUDY000N_ARCHITECTURE.md`
- `reports/STUDY000N_RESULTS.md`
- `reports/STUDY000N_DISCUSSION.md`
- `reports/STUDY000N_METHODS.md`
- `reports/STUDY000N_LIMITATIONS.md`
- `reports/STUDY000N_PLAIN_LANGUAGE_SUMMARY.md`
- `reports/STUDY000N_AUDIT.md`
- `reports/STUDY000N_ABSTRACT.md`
- `manuscript/STUDY000N_STUDY_PLAN.md`
- `manuscript/STUDY000N_MANUSCRIPT.md`
- `outputs/study000n_marker_candidate_table.csv`
- `outputs/study000n_state_marker_matrix.csv`
- `outputs/study000n_marker_family_tests.csv`
- `outputs/study000n_primary_answer.csv`
- `outputs/study000n_scope_claims.csv`
- `outputs/study000n_discovered_questions.csv`
- `source_tables/`

## Intended Role

`000N` is the next empirical flagship after `000M`.

It moves the archive from:

- retrospective envelope interpretation

toward:

- forward-usable state reading

without overclaiming a single threshold that the current archive does not support.