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I must admit that I am one of those confused people. And this (from Wikipedia) is not helping: "Heisenberg utilized such an observer effect at the quantum lev

I must admit that I am one of those confused people. And this (from Wikipedia) is not helping: "Heisenberg utilized such an observer effect at the quantum level (see below) as a physical "explanation" of quantum uncertainty. It has since become clearer, however, that the uncertainty principle is inherent in the properties of all wave-like systems,[8] and that it arises in quantum mechanics simply due to the matter wave nature of all quantum objects." So... yeah, lay people (ie me) get really confused. Heisenberg said, that that was because of this, but then, it became "clearer" that it was not because of this, but because of that. So yeah if it was because of "that", how about we remove that Heisenberg interpretation from Wikipedia (except as a historical footnote) because it is not considered appropriate or clear enough anymore.

QAPereo 9y ago
To be fair, you have it exactly right. He had hypothesis which turned out to be incorrect, or at the very least not the whole story, and the story is weird and hard to believe. The truth is it’s taken a long time and a lot of testing Tom produce the current admittedly imperfect understanding of quantum mechanics. It is the wave-like nature (part of a dual nature) of everything (although for atoms and larger things they need to be very energetic to display that wavelength) which leads to the weird behavior our species has spent the last century coming to grips with.