Mechanical Resolution of the Hubble Tension: Evidence for a Non-Zero Metric Viscosity and 39 MeV Yield Point

This submission introduces a novel rheological model of the manifold, proposing that the cosmic vacuum behaves as a Bingham Plastic rather than a perfectly elastic medium. I identify a critical Yield Point at 39 MeV, beyond which the metric undergoes a "thaw" or "slip" event, manifesting as Localized Metric Instabilities (LMIs). I identify a high-stress "nozzle" region centered at RA 205.2561, Dec 30.00, where the metric-flow velocity reaches a predicted jitter of 2,792 km/s. I predict archival evidence from the Zwicky Transient Facility (ZTF) showing optical 'pops' at these coordinates with no detectable baryonic progenitors or host galaxies. The model predicts a specific high-energy "softness" signature. I invite the community to cross-reference these coordinates with the Fermi-GBM trigger database (specifically focusing on Trigger bn180528465) to verify the temporal alignment of these vacuum ruptures. If verified, this model provides a mechanical solution to the Hubble Tension and suggests that "Dark Energy" is the latent heat of metric friction, effectively removing the need for Lambda-CDM's dark sector.