Rhythm and Cadence: Testing Energetic–Temporal Alignment in Hybrid Societies

Life on Earth evolved under patterned energy flux—day and night, seasons, and periodic shocks—and agency itself emerged through rhythmic entrainment. This study operationalises that insight by testing Energetic–Temporal Alignment (S4), the final mechanism in the Constitutional Architecture of Hybrid Societies (CAHS). Using an agent-based model (600 agents, 60 epochs, seed 4242) we compare a desynchronised baseline (frequent night pings, unreliable grid, no rest cadence) with a stable regime (predictable cycles, reliable power, weekly rest day). Results show that rhythmic stability improves planning horizon (+3.2%), cooperation (+2.1%), and trust (+2.0%) with negligible throughput loss (+0.5%). Harmonic coherence between collective activity and circadian cycles reaches unity under the stable regime, confirming that rhythm alignment sustains collective viability. These findings empirically validate CAHS Thesis 2—Energy and time as universal substrates of agency—and extend the MMM framework’s claim that stable temporal scaffolds underpin moral and institutional coherence.