Resolving the Cosmological Constant Problem via Entropic Graph Expansion

The cosmological constant problem is usually framed as a catastrophic mismatch between naive continuum vacuum-energy estimates and the tiny late-time acceleration inferred from astrophysical data. In QGEFT, the vacuum is not modeled as a continuous fluid with an enormous zero-point energy density. It is modeled as a discrete topological reservoir whose macroscopic effect is to dilute graph shortcuts as entropy grows. Using the fixed-`N` dark-energy benchmark already established in the QGEFT program, we measure a late-time dimensionless expansion rate `H_sweep ≈ 8.8616 × 10^-4` per sweep from the graph scale factor itself. Calibrating one sweep to `7.246 × 10^57` Planck times yields `H0 ≈ 69.997 km s^-1 Mpc^-1`, `H0 ≈ 2.268 × 10^-18 s^-1`, and an induced cosmological constant `Λ ≈ 1.717 × 10^-52 m^-2 ≈ 4.49 × 10^-122 l_P^-2`. The narrow claim is not that the sweep-to-time calibration has already been derived from first principles. It is that once the observed late-time cosmic clock is used to interpret the measured graph expansion rate, QGEFT naturally places the cosmological constant on the observed `10^-122` scale without invoking a physically real vacuum-energy fluid.