Kardashev Scale, Fermi Paradox and Great Filter: A Unification Through Thermodynamic Efficiency
exoplanets thermodynamics cosmology theoretical-physics energy-efficiency seti systems-theory astrobiology fermi-paradox kardashev-scale extinction-risk resource-depletion great-filter civilization-collapse sustainability-science substrate-degradation observable-universe extraterrestrial-intelligence archaeological-patterns climate-thresholds
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Updated
Jan 6, 2026