This paper develops the fifth installment of Kasei-Theory in relation to physics and examines the structural threshold at which physics becomes possible. Earlier papers introduced the phase structure latent → dec → col and argued that physics describes only the regime where configuration stabilizes as readable structure. The present work focuses on the boundary preceding this stabilization. It argues that physics does not begin with configuration as such, but only where readability becomes sufficiently stable to sustain continuous relations, measurement, and order. Several unstable regimes are identified within this threshold region, including abortive readability, thin structures, saturation, and disconnection. These regimes indicate that readability is not the default state of configuration but a stabilization event. Physics therefore describes only a narrow domain within configuration: the region in which readability stabilizes strongly enough to sustain a world.
Juza Minamikata (Thu,) studied this question.