I believe there is a category error when we try to say anything about art as art is a mode of being or a mode of experience which cannot be put into words, the same way we can't talk about what the color red looks like or explain what the sea or the sky look like. They can only be experienced. Now, when I see someone talking about "art", there is probably a hidden word next to it they are referring to. It could be art "industry" or art "people" or art "culture" but never art in itself. Even what i'm saying now is not about art, i'm really talking about art "discourse" and art "experience". But they're still away from the thing in itself which cannot be put into words. You just feel it and when it's felt, you can call that art and noone has to agree with you.