Black Hole Pressure Leaks as Multiverse Birth Mechanisms

**Leclerc Whitehole Bounce Theory** Black holes reach Planck density (ρ_Planck = 5.1×10^93 g/cm³), triggering quantum gravitational bounce that ruptures horizons, birthing expanding white hole universes [Rovelli 2014; Ashtekar 2006]. Loop Quantum Gravity dynamics reverse collapse at Planck scales, seeding multiverse proliferation where daughter universes' expansion dilutes ambient volume, manifesting as observed dark energy (Λ_eff ≈ 10^-52 m^-2). **Testable predictions**: CMB Planck-scale power anomalies; LIGO/Virgo gravitational wave signatures from nearby black-to-white transitions. Resolves information paradox via universe-externalization. No string theory required. **Keywords**: cosmology, white hole bounce, quantum gravity, LQG, multiverse, singularity resolution