This theoretical regression to an infantile mimicking of speech thus denied to the dreaming process proper any substantial language functioning or (in modern terms) linguistic competence.
In this view, optimality theory is taken to be a model of linguistic competence and is therefore not intended to explain the specifics of linguistic performance.
Although, thanks to their linguistic competence, human judges can be considered as the reference for a number of language processing tasks, there is also considerable variation across their ratings.
Still, these sorts of idiosyncratic grammars differ in degree from broader diasystems, which are much less likely to be part of speakers' linguistic competence.
The CEFR divides general competences in "knowledge" (descriptive knowledge), "skills", and "existential competence" with particular communicative competences in "linguistic competence", "sociolinguistic competence", and "pragmatic competence".
The whole racket of certification, accent training, and standardised language tests is based on such an imperialistic and exploitative archetype of linguistic competence.