Polarizable Vacuum (PV) / metric-engineering propulsion.
disputedphysics_theoryModern Disclosure Nexus
Puthoff's optical-medium reformulation of GR; basis for 'metric engineering' warp/wormhole propulsion; became AAWSAP DIRD #15.
Puthoff's PV model (arXiv gr-qc/9909037; Foundations of Physics) recasts general relativity by treating the vacuum as an optical medium whose dielectric constant K varies near mass. He frames this as 'metric engineering' enabling Alcubierre-style warp / wormhole propulsion. Published as 'Advanced Space Propulsion Based on Vacuum (Spacetime Metric) Engineering' (JBIS 63:82, 2010) and submitted as AAWSAP DIRD #15. Reproduces GR in weak fields but is a 'toy theory' under strong fields and sits outside mainstream physics.