On the Existence of Destiny: A Demonstration from Spacetime Physics.

Our physics and mathematics cannot operate directly in four-dimensional Minkowski spacetime. We are applying three-dimensional tools to a four-dimensional reality. Any geometry student knows what happens when projecting between dimensions: artifacts, distortions, fictitious properties. To illustrate this, we prove that destiny—the endpoint of an observer's worldline—exists as a geometric property of spacetime with identical ontological status as birth. This example is deliberately trivial; its triviality is the point. That such a simple consequence of our own formalism is rarely made explicit reveals how deeply this dimensional error is embedded in modern physics. The philosophical implications of this example—concerning free will, the nature of time, and determinism—are serious but collateral; the fundamental issue is that we have been misapplying our tools for over a century.