The Variable Nature of Fossil Gravity: From Zero Gradient in Pleiades to Saturation in SPT2349-56.

This comparative study challenges the standard cosmological assumption that Dark Matter is a fixed structural component ($\Omega_{DM} \approx const$). By contrasting the hyper-massive protocluster SPT2349-56 (z=4.3) with the local open cluster Pleiades/M45 (z~0), we demonstrate that "Dark Matter" behaves as an evolutionary Hysteresis Gradient. Key Findings: SPT2349-56 (Shock Front): Represents a saturated system where high Entropic Friction ($\Psi$) accelerated metabolic aging, transmuting Lithium into a massive Geometric Memory halo (Dark Matter rich). Pleiades (Neutral Zone): Represents a "Zero Point" or Newtonian control group. Being young (~100 Ma) and located in a laminar flow region of the Cosmological Dipole, it exhibits zero hysteresis, requiring no Dark Matter to explain its dynamics. We conclude that the "missing mass" is not a particle, but a variable symptom of the system's metabolic history. Keywords: Dark Matter Gradient, SPT2349-56, Pleiades, Newtonian Dynamics, Entropic Gravity, TGF Theory, Cosmological Dipole.