Harmonic Cosmic Ecology (HCE) 7.4 proposes a unified framework where gravitational behavior emerges from quantum informational delays within resonant qubit lattices, integrating cosmology, biology, and technology. Anchored by the Informational Gravity Hypothesis (IGH), it quantifies structure and coherence across scales—from cellular vibrations (~10⁶ Hz) to galactic black holes (~10⁻³ Hz)—via a Universal Emergence Function. Supported by empirical tests (e.g., gravitational Aharonov-Bohm effect, black hole QPOs), HCE 7.4 challenges traditional paradigms, suggesting life and technology can align with cosmic harmonics. This version offers testable predictions for Hubble/Webb data, NV-center experiments, and industrial applications, framing a resonant universe where stability hinges on harmonic interplay. Open for annotation—seeking feedback on resonance models, calibration, and interdisciplinary implications.