75. Wave-particle duality
The double-slit experiment is quantum mechanics’ most celebrated demonstration. An electron is sent towards a wall with two slits. If no one measures which slit it passes through, it behaves as a wave and produces an interference pattern. If someone looks, it behaves as a particle. The observation itself changes the outcome. Feynman said that this experiment alone contains the entire mystery of quantum mechanics.
In the EC/HE theory it is not a mystery. It is a demonstration of the horizon mechanism.
The wave and the particle are not two different types of reality that alternate depending on the situation. They are two aspects of the same relational structure — seen from each side of the horizon between KNOWING and manifest experience. The wave expresses the abstract relational organisation in KNOWING before focusing — simultaneous possibilities in a relational field without local determination. The particle is the same structure after the Experience Circle has stabilised one reading as manifest physical experience.
Why does observation change the outcome? Because observation is focusing. And focusing is what manifests. Without FOCUS — wave. With FOCUS — particle. It is not the observer that affects the particle from outside. It is that manifest experience does not exist before the Experience Circle reads the relation.
Wave-particle duality therefore does not express a strange property of quantum objects. It expresses the very horizon mechanism between abstract relation and manifest stabilisation — seen directly in experiment.
