Fermi Bubbles as Galactic-Scale Cadence Cavities

The Fermi Bubbles are two enormous gamma-ray lobes extending roughly 8–10 kpc aboveand below the Galactic Centre, accompanied by even larger 12–14 kpc eROSITA X-raystructures. Their sharp edges, bilateral symmetry, latitude-invariant spectral break energy,and spectral hardening at the rim remain difficult to reconcile with standard hydrodynamicor magnetohydrodynamic outflow models, which require finely tuned collimated injectionsor repeated tidal disruption events to maintain such morphology. This paper introduces amechanical interpretation grounded in the Cohesion UFT framework (Gilbert 2025–2026)in which the bubbles are cadence cavities — regions of reduced field density and elevatedstructural recursion rate — bounded by cadence shock fronts. The cadence shock frontis a discontinuity in the local recursion rate driven by the field-density gradient at thebubble boundary. This framework naturally explains the bubbles’ morphology, spectralbehaviour, and stability without requiring fine-tuned astrophysical conditions, and yieldsspecific, falsifiable predictions distinguishable from conventional shock models across gammaray, X-ray, and radio wavelengths.