This white paper introduces the Predictive Timeline Simulation (PTS) Framework, a model that reframes consciousness as an evolved predictive simulation engine. Drawing on neuroscience, predictive processing, and the Block Universe model of spacetime, it offers a functional, testable account of consciousness without resorting to mysticism. The framework has implications across multiple domains: Philosophy: Proposes an evolutionary role for qualia, treating them as a data format for navigating a deterministic universe. Neuroscience: Models how the brain’s “common core network” and predictive systems create a workspace for simulating and evaluating future timelines. Clinical Science: Introduces the Simulation Misfiling Hypothesis, suggesting schizophrenia may result from a breakdown in executive control over this simulation process, with implications for early detection and intervention. Artificial Intelligence: Outlines a blueprint for Artificial General Intelligence (AGI) grounded in imagination — the ability to simulate novel futures as the true engine of general intelligence. Grounded in physics and evolution, this paper presents a unified, testable framework with clear implications for philosophy, neuroscience, clinical science, and AI research, supported by a robust multidisciplinary bibliography.