Late-Time Suppression of Structure Growth from Informational Curvature Relaxation

Weak-lensing surveys continue to suggest a mild but persistent tension in the amplitude of late-time structure growth relative to ΛCDM expectations inferred fromcosmic microwave background measurements. In this work we show that, within theinformational-curvature relaxation framework, a natural suppression of late-timeclustering can emerge without modifying early-Universe physics. The informational curvature scalar I is defined operationally via the covariant Bousso entropy bound,and its coupling scale is constrained by dimensional analysis, while the adopted saturation form is motivated by the same bounded-relaxation structure developed in companion work on stochastic wavefunction collapse. Structure formation generates gradients in I that backreact on the effective gravitational coupling, yielding a possible late-time suppression channel relevant to the reduced S8 values preferred by weak-lensing surveys. Explicit order-of-magnitude estimates and the ΛCDM recovery limit are derived. The analysis also shows that accounting quantitatively for the full observed suppression requires a non-perturbative enhancement of local informational gradients. This framework is part of a broader research programme connecting informational saturation to collapse, emergent time, and cosmological dynamics.