What is quantized in Nature?

Question

I've thought that it was normal modes of collective motion who were quantized. One can call them quasi-particles. Here one have everything - constituents, nearly free quasi-particles and their interactions in place.

But obviously my point of view is not widely accepted. Instead, they think of a free space, free particles and interactions of free particles. This all looks too stupid to me. What do you think? 

Comments

Everything in Nature is quantized. This has nothing to do with normal modes - consider angular momentum. 

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@VladimirKalitvianski: Takiing the present discussion into account, ask a new and clear question about the factual part without the emotional load your present question carries. If your question is open-ended ("What do you think?") it should be asked in Chat.

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Arnold, I do not believe in success of asking a new and clear question. Dilaton and dimension10 are here to vote it down and close because it will be mine. They systematically voted down everything and moved my replies to other places without discussions. This makes me sad. Yesterday I took a can of beer and let my emotions go, but the essence of my question and remarks remain the same. You too, leave often my remarks without reply, so my hopes sank.

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@VladimirKalitvianski: If you don't expect to get answers, why do you insist on reopening the current question? 

You are downvoted because of your disrespect of the mainstream and because of sneering remarks; if you stay factual and use moderate language (as you should) you will hardly be downvoted.

 You too, leave often my remarks without reply

It doesn't make sense to reply to a remark by you if I have nothing new to say. And when I say something it doesn't make you happy anyway...

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@VladimirKalitvianski When we talk about free particle we implicitly make an assumption, that the particles don't interact with anything but the detectors, which is a reasonable assumption to understand the formalism but really unhelpful when talking about nature. We quantize actions(Or equivalently hamiltonians  ) This question really is pointless,  please talk about a specific action and discuss it properties.

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@VladimirKalitvianski PO is a graduate-level+ physics site, so its members are expected to understand undergrad quantum mechanics, including the basic methods of quantization.

To clarify (personal) misunderstandings concerning below graduate-level physics, PhysicsForums, Quora, or Physics SE are more appropriate places.

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I insist in order to demonstrate my disagreement with mistreatment I have here. Of course, I do not expect Dilaton and dimension10 to answer; they never answered my questions in physics.

And my sarcastic remarks like quantization of the angular momentum itself is a good reply to your valuable comment.