Why Reality Solidifies and Why Creativity Declines

This paper investigates one central question: Why are some fields able to sustain high resolution and complex continuation over long durations, while others gradually move toward compression, solidification, familiar-path locking, and reality rigidity? The paper argues that fields are not infinitely open empty domains. Within fields: * familiar paths, * shared cores, * infiltration, * compression, * and deep sedimentation continuously occupy the effective domains available for the formation of new continuation. Thus: the decisive factor of a field is not its total size, but the proportion of effective continuation volume that still remains open for new continuation. The paper proposes that rigidity, solidification, declining creativity, and structural lock-in within reality are not merely psychological phenomena, but structural consequences of long-term decline in field-volume ratio. As familiar paths deepen, infiltration increases, compression strengthens, and tuning solidifies, fields become increasingly inclined to: * interpret new input through old structures, * reuse existing familiar paths, * compress newly emerging differentiations, * and reinforce reality lock-in. As a result: new continuation becomes increasingly difficult to stabilize. When effective continuation volume continuously declines while new continuation still enters the field, edge-penetration begins occurring, allowing new structures to rupture outward once again. The paper further establishes field-dynamical relations among: * field volume, * effective continuation domains, * field-volume ratio, * infiltration occupation, * familiar-path locking, * and reality solidification, while proposing a structural account of why conservatism, rigidity, declining creativity, and structural lock-in within reality continuously intensify through historical sedimentation.