**Leclerc Whitehole Bounce Theory** Black holes reach Planck density (ρPlanck = 5. 1×10⁹3 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 (Λₑff ≈ 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
Elyess LeClerc (Mon,) studied this question.