Strictly speaking, these experiments "prove" is that what they are seeing is neither a particle nor a wave. Which of course physicists have known for a while. They know that using the concepts of "particles" and "waves" are just that -- concepts.
Indeed, they are both constructs with their own sets of problems - hence quantum field theory.
While I would concede the point concerning "concepts", I always thought the explanation was that light was a particle that traversed space-time in the form of a wave.
Am I incorrect in this assumption? ( All these years? )
From:HLMencken( http://www.geocities.com/danielmacryan/oldbooks.html#nietzsche6)
This period of diligent but groping inquiry kept on for a couple of centuries and before the beginning of the French revolution a vast mass of facts had been accumulated. Bacon, Nicolas of Cusa and Machiavelli had put common-sense into ethics; the physicians had begun to know not a little about the human machine; through the efforts of Althusius, Mariana and others the old superstitions about the divine rights of kings and princes were dying out; Adam Smith was preparing to unearth the forces which made for national welfare, and a host of impious doubters were examining the current schemes of religion and showing their absurdity. The French revolution then made its blinding flash and after that the air was clear. Since the latter part of the 18th century, indeed, our whole outlook upon the universe has been changed. We have learned to judge things, not by their respectability and holiness, but by their essential truth. It is now possible, not only to approach facts with an unbiased mind, but also to make critical examinations of ideas: i.e., to consider the human mind itself as a living organism and to examine, not only its functions, but also its growth.
Comte, a Frenchman, was the first to perform this last feat with any success. He looked back over the history of the human race and found that it had progressed through three intellectual stages.((3)) During the first stage, men ascribed every act in the universe to the direct interposition of the deity. During the second, they tried to analyze this deity's motives, and so endeavored to learn why things happened: why the sun rose every morning, why one man was white and another black, one tall and another short; why everyone had to die. During the last stage, they began to realize that this inquiry was futile and that the answer would be out of their reach for all eternity. Then they turned from asking why and began to ask how. In a word, they began to accept the universe as it was and to content themselves with learning all they could about its workings and about the invariable laws which controlled these workings.
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