Time as Retention Without Return Under Asymmetry (The Non-Modal Structural System II)

This paper fixes time as retention without return under asymmetry. Time is not a parameter, flow, or dimension. It is not treated as succession or measurement. It is fixed as a structural consequence of retention. Irreversibility is fixed as retention without integration or return. However, irreversibility alone does not fix time. Asymmetry is fixed as the failure of equivalence under structural reversal. Within this configuration, time is not derived or measured. It is fixed where retention holds without return under asymmetry. This paper does not propose a model of time. It fixes the structural condition under which time appears.