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Why Space Time Doesn't Exist

DESCRIPTION: It sounds impossible to say that space-time doesn’t exist. After all, we measure distances with rulers, durations with clocks, and we speak as if the universe unfolds inside a vast cosmic stage. Yet modern physics suggests something deeply counterintuitive: spacetime may not be a physical substance at all, but a mathematical structure describing relationships between events. In this video, we explore what physicists really mean when they say that spacetime is not a thing, but a model. According to general relativity, gravity is not a force but the curvature of a four-dimensional geometry that unifies space and time. Massive objects influence this geometry, and other objects follow the straightest possible paths within it. Drawing on ideas associated with Leonard Susskind, this exploration examines spacetime as a manifold, coordinate invariance, the geometric interpretation of gravity, and the distinction between mathematical models and physical reality. Rather than treating spacetime as a fabric or substance, we investigate it as an abstract structure—a way of organizing distances, durations, and causal relationships. The emphasis is not on equations, but on understanding what the theory actually commits us to, and what it leaves open. This does not mean that relativity is wrong or that gravity is an illusion. The claim is subtler: the geometry we call spacetime may not be an independent entity, but a powerful bookkeeping device encoding how matter and energy relate. This strange behavior reveals something profound about spacetime and reality itself. The structures we use to describe the universe may not be ingredients of the universe. What we call “the stage” might emerge from deeper relationships we do not yet fully understand. This video avoids equations and focuses on intuition. Through clear explanations and thought experiments, we explore whether spacetime is fundamental—or merely a map mistaken for the territory. This is a calm, reflective documentary for viewers who want to understand one of the strangest consequences of modern physics. How this was made