# Study 000I Methods

Study `000I` is a flagship theory test built from already-audited outputs from:

- `Study 000F`
- `Study 000H`

The theory question was not whether an envelope exists. `000F` already answered that. The theory question here was whether the envelope behaves as a fixed boundary or as an adaptive state that changes across phase and support structure.

The study compared three state anchors:

1. early low-burden outside expression
2. October 2025 high-burden outside cluster
3. late low-burden boundary expression

The main test was explanatory rather than mechanistic:

`Can one fixed support-threshold logic explain all three states as cleanly as an adaptive-envelope model?`