In many ways, de Broglie’s “pilot wave” interpretation is the most natural and obvious way to explain wave-particle duality. He proposed that the wave and the particle are both real, and that the wave (which became known as a pilot wave) guides the particle to its destination, like a surfer riding waves in the sea. In the experiment with two holes, the pilot wave spreads out through both holes and interferes with itself to make a pattern of interfering waves. Particles that are fired through the experiment start out with slight differences in speed or direction, so they end up surfing in
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