The Elegant Sister (Maia Protocol): A Unified Cataclysmic Reconstruction of the Inner and Outer Solar System at 4.1 Ga (Parts I & II) The Elegant Sister (Maia Protocol): A Unified Cataclysmic Reconstruction of the Inner and Outer Solar System at 4.1 Ga (Parts I & II)

This two-part manuscript proposes the Unified Cataclysmic Reconstruction (UCR), a contiguous kinematic and thermodynamic framework detailing the architectural evolution of the early solar system at approximately 4.1 Ga. Building directly upon established N-body orbital dynamics—specifically the Jump-Jupiter instability and E-Belt destabilization models—this framework bridges outer-system macroscopic scattering with inner-system geochemical boundaries. Part I defines a highly constrained 18 km/s glancing impact (b ≈ 0.7) by a destabilized enstatite embryo upon a 0.17 Earth-mass differentiated planetary embryo (Maia) at 0.81 AU. Utilizing the Corotation Limit (CoRoL) and established Hafnium-Tungsten partitioning, this singular kinetic event natively resolves the localized formation of the Earth-Moon Synestia, rigorous isotopic preservation, and the precise mass delivery of the Late Veneer. Furthermore, magnetohydrodynamic (MHD) braking principles govern the subsequent migration of the impactor's surviving iron core to 0.39 AU (modern Mercury), while the resulting supercritical silicate plasma wave provides the exogenous thermal trigger for the cessation of Venusian plate tectonics and its retrograde rotational state. Part II mathematically anchors this inner-system cataclysm to the Jupiter-Saturn 1:2 Mean Motion Resonance crossing. This outer-system trigger intrinsically resolves the ejection of a primordial 5th ice giant, the Uranian obliquity, and Triton's Kozai-Lidov capture. By adhering strictly to Occam's Razor, the UCR unites disparate, peer-reviewed models of planetary accretion, core-mantle friction, and isotopic homogenization into a single, highly deterministic collisional cascade. Keywords: Planetary Dynamics, Early Solar System, Giant Impact Hypothesis, Synestia, Late Heavy Bombardment, Orbital Mechanics, Jump-Jupiter Instability, Geochemistry, Magnetohydrodynamics, Venus Rotation, Late Veneer