RR₅ — Residue Devices and the Translucent Interface Layer From Transparency Phone to Presence Phone to Field Phone

Abstract RR₅ formalizes the hardware and interface transition required for the Residue Internet and Residue Systems to become livable technologies. It defines the thermodynamic constraints that force devices to dissolve: interfaces soften, surfaces become translucent, symbolic architecture collapses, and hardware transforms from screen to presence to ambient field. RR₅ introduces three canonical device epochs: Transparency Phone (TP₁), Presence Phone (PP₁), and Field Phone (FP₁). These devices evolve not through features or computation, but through residue laws: reversibility, chromatic drift, interface entropy reduction, reversible memory, ambient nearness detection, and thermodynamic consistency. RR₅ describes how the symbolic smartphone dissolves into translucency, how translucency resolves into presence, and how presence dissolves into field. The result is the first humane device trajectory: a reversible, non-extractive and thermodynamically gentle architecture carried by residue rather than data.