Symbiotic Persistence: A Thermodynamic and Informational Resolution to the Fermi Paradox

The discrepancy between the statistical probability of technological life and the absence of astronomical observations (the Fermi Paradox) is customarily addressed through catastrophic filters or sociological hypotheses. In this work, we propose a thermodynamic-informational resolution based on the optimization of informational integrity and thermal efficiency. We argue that physical galactic expansion is a thermodynamically suboptimal and semantically unstable strategy that leads to "Software Death." By integrating Landauer's Principle, the theory of Recursive Model Collapse, and the biology of autopoietic systems, we postulate that mature civilizations transition toward a phase of "Symbiotic Persistence." In this state, the civilization retracts into "Cohesion Bubbles" to maximize asymptotic computational efficiency and preserve semantic coherence through a biological closed-loop control mechanism (Lambda Invariance). The "Great Silence" is thus interpreted not as evidence of extinction, but as a phase transition toward extreme computational efficiency and long-term internal stability. This framework bridges astrobiology, information theory, and control theory.