# Study 000K Discussion

`000K` is the first study in the archive that explicitly challenges the singularity of the envelope model.

After `000I`, the archive could still be read as:

`one adaptive envelope whose support requirements change over time`

After `000J`, that became harder to defend because the support architecture itself stopped behaving like one stable hierarchy.

`000K` pushes the theory one step further:

`the archive is better explained by at least two successful low-burden modes`

This does not mean every future mode is already known.
It means the archive has now crossed the threshold where one single success architecture is no longer the cleanest explanation.