Space-Geometry Concept for a Non-FTL Propulsion Concept: Companion Treatise to the Original Model

Companion treatise to the original non-FTL propulsion preprint (DOI: 10.5281/zenodo.18130126). Presents the SBC–Ĥ space-geometry framework (θ phase, M memory/identity axis, X as an external generator), clearly separating established anchors (E) from speculative extensions (S). The “step” is modeled as a strictly bounded relational/topological switching operation (Ĥ), constrained by causality, no-cloning, stability, and quantum energy-inequality considerations. Includes color figures and referenced sources.