Entropic Drift (General Equation)

The Entropic Drift General Equation is ATH's overarching statement of the second-law tendency of every built asset toward disorder — the baseline thermodynamic decay against which all stewardship is measured. Where Chronostructural Drag is the accelerated, intervention-induced case, Entropic Drift is the general background rate, and it serves as a core input to long-term service-life modelling (alongside the Z-Codes and Chronostructural Drag). It formalises the doctrine's premise that, untouched, every surface loses order over time, and that negentropic intervention is what holds the line.