Chrono-Grid Dynamics (CGD) is a discrete, unitary approach to quantum gravity in which spacetime emerges from a quantum spin network evolving in discrete time steps (the Takt τ). We derive the Barbero-Immirzi parameter β from first principles using Monte Carlo simulations of the CGD spin network on a black-hole horizon, obtaining β = 0.2606 ± 0.0004. This value agrees with Loop Quantum Gravity and cosmological constraints (β = 0.23 ± 0.02). When used in a global cosmological fit, the CGD model naturally resolves the H0 tension, yielding H0 = 73.1 ± 1.0 km/s/Mpc.
Nebojša Jovanović (Thu,) studied this question.