The Causal Budget Framework: A Computational Theory of Everything presents a unified computational model of physics. Reality is described as a network of “wave cells,” each with a fixed causal budget per tick, C=T(translation)+M(maintenance) = 1. These cells can move, oscillate, or maintain internal state, producing wave behavior, interference, and quantization naturally. A global Event Ledger manages all collapse events through four reconciliation gates: spatial, temporal, directional, and informational. This process ensures global causality while preserving local quantum freedom. Gravity arises from queue buffering, where regions of high activity reduce the local causal budget, slowing time and curving trajectories. This single rule-based system reproduces the essential behaviors of quantum mechanics, special and general relativity, electromagnetism, and cosmological effects such as dark matter and dark energy, offering a computational foundation for physical law. For detailed technical implementation, see Causal Budget Framework, Part I: Cellular Automata as Computational Quantum Mechanics (DOI: 10.5281/zenodo.17610158). Causal Budget Framework, Part 2: Exploring the Double-Slit Experiment (DOI: 10.5281/zenodo.17619157) Causal Budget Framework, Part 3: How C = T + M Unifies Physics (DOI: 10.5281/zenodo.17619704)