The Structural Domain of Readability — Kasei-Theory, Physics VI

This paper presents the minimal formal structure underlying the physical analysis developed in Physics I–V of Kasei-Theory. Physics does not fix configuration as such. It fixes only the region in which readability is stabilized as a persistent condition. The universe is therefore defined as the stabilized readable subset of configuration. The relations between the configuration domain, readable configuration, and the universe are summarized in the structural hierarchy: U ⊂ R ⊂ C ⊂ Ka. This hierarchy expresses the structural boundary within which physics is delimited.