Metric entropy of Kähler potentials

We prove sharp metric entropy estimates for spaces of Kähler potentials. In complex dimension $n$, normalized potentials have Kolmogorov entropy of order ${\text{e}}^{-n}$ in the background $L^1$ metric. On a polarized manifold, a relative-entropy sublevel has the same order in the Mabuchi–Darvas $d_1$ metric, including its full finite-energy closure. The upper bound is $C_X(1+B{)}^{n+1}{\text{e}}^{-n}$ for entropy budget $B$. For toric potentials, the sharp exponent is $n\mathrm{/}2$.