CurvatureStress Safety Valves From Table_Top Loops to the Fermi Bubbles

Black holes are conventionally seen as the final fate of massive stars, but the GUR (“Great Universal Recycle”) framework offers a unifying picture: whenever local curvature stresses overwhelm the surrounding mass budget, a horizon forms to vent that excess. This paper shows that the same simple “curvature‐stress gate”—the ratio of stored gravitational memory to local mass density or the magnitude of overlapping curvature tensors—governs phenomena from tabletop fibre-loop interferometers and attosecond entanglement chronoscopy to direct-collapse black-hole seeds and the Milky Way’s Fermi bubbles. Order-of-magnitude estimates, a toy gas-cloud simulation, and a roadmap for JWST, LISA, and ALMA tests demonstrate that shared calibration biases cancel out of the gate criterion, placing observational validation within reach.