Thermodynamic Interpretation of EPOCH's Decay Timescale via Landauer's Principle

Kim (2025) identified an effective dark energy decay timescale \tau_{\text{eff}} = 21 Gyr through empirical fitting of cosmological data within the EPOCH framework. We propose a thermodynamic interpretation: this timescale represents the minimum duration for the universe to process its holographic information content at the Landauer bound. Given the vacuum energy budget E_{\text{DE}} \sim 6 \times 10^{70} J and maximum cosmic information I_{\text{max}} \sim 10^{122} bits, we calculate that achieving \tau_{\text{eff}} = 21 Gyr requires an information processing efficiency \eta \sim 1.6 \times 10^{-29}. This value is three orders of magnitude below the naive holographic scaling \eta_{\text{holo}} \sim 3/R_H, suggesting quantum corrections suppress bulk dissipation. Rather than an arbitrary parameter, EPOCH's empirical timescale may reflect fundamental constraints on thermodynamic information processing in de Sitter space.