So this is something I've mentioned a few times but haven't found a better way to explain. This is the experiment that ended the debate on whether electrons and other subatomic particles are waves or particles- the answer being, it depends on what kind of measurement you are taking. This idea is really helpful in understanding the reason for using a "multi-model approach" as we need both models of subatomic particles to understand what's "really" happening, and we also realized that it was our own biases which were making the phenomena occur or seem strange. Once we stop confusing language (map) for the actual event (territory), the seemingly contradictory nature of using both models to describe the subatomic world fades away. The question ceases to be, "is light particles or is light waves?" and becomes: "What does looking at light as waves help us discover about the nature of things?" and "What does looking at light as particles help us discover about the nature of things?"
Sorry for the corny animation, but this the best summary of the experiment that I could find. it is an oversimplification for sure, but it gets the point across.
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