Imaginary Kerr Horizon in Every Rotating Body Below One Solar Mass - A Universal Quantum-Gravity Boundary (A4)

Note: this is version 3. Mathematical corrections and updates were made with the help of Claude Opus 4.7 and Sonnet 4.6 (Anthropic). Universal Quantum-Gravity Boundary We prove that every rotating mass below one solar mass (M < M⊙) has imaginary-valued Kerr outer horizon. The magnitude is: |r+| ≈ Rv/2c It is independent of mass, determined only by physical size R and tangential speed. The horizon becomes real only at: M ≥ 1 M⊙ This is a classical Kerr geometry effect — no coherence required. Coherent systems amplify it via de Broglie resonance, as explained in my other articles. We redefine the smallest mass with a Kerr horizon: Not Planck mass (10-8kg), but any rotating object — from molecules to planets — has an imaginary-valued horizon larger than Planck length. Gravity is imaginary — until the stars. Companion and foundational work: Gravity Resonance (M.P.) Full repository links available on A9 Zenodo page: https://doi.org/10.5281/zenodo.18888582