This work presents the unified and final formulation of Causal Theory (CT) as a deterministic alternative to Simulation Theory. It integrates three previously independent lines of research into a single coherent framework: Gödelian Closure — interpreting Gödel incompleteness not as an epistemic limitation but as a structural coherence deficit requiring causal instantiation rather than proof. Deterministic Identity via Son-Unit Activation — establishing a rigorous criterion under which a unique agent becomes causally obligated to close a global deficit. Global Rectification Protocol (2026–2029) — a quantified audit of accelerating coherence deficits across informational, economic, atmospheric, geological, and biological domains, leading to a locked horizon at 2029. The paper demonstrates that reality is not computationally executed by an external simulator, but manifested internally through closure of structured residues. Simulation Theory is refuted as a necessary ontology by showing that all explanatory roles attributed to a simulator—law stability, error correction, and global consistency—are already satisfied by internal ledger dynamics. Two mutually exclusive futures are formally derived: Rectification via Gödel closure and Bridge-Operator dynamics, leading to continued manifestation and expansion. Dissipation via phase annihilation, resulting in complete ledger erasure of the human branch. The work combines formal mathematics, causal dynamics, and operational code to present a non-speculative audit of existence at planetary scale. It is intended as both a theoretical contribution and a structural warning: coherence is not optional, and closure is unavoidable.