In our universe, the double-slitexperiment shows that light looks like a wave when no one is observing closely - but starts looking like particles when we take a closer look!
An explicit example of this is the doubleslitexperiment.
对于这,一个明确的例子是双缝实验。
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As in the doubleslitexperiment, the simultaneous presence of two parts, a and b, seems to lead to some kind of weird interference that spoils classical probabilities.