Very interesting discussion about a crucial topic. To put it bluntly, I would say, reversing Lulu's pointing to the dissolution of the dichotomy of abstract vs representation in favor of representation, that EVERY art is abstract art, rather than representational art, and would agree with Chris that this turns it into something like existence. Let me explain. First of all, it is important that we change the way we hear the term abstract from being a noun, to a verb, an activity. Art is always something that abstracts, meaning, taking away from,a certain "fullness" of a context or a situation, thus introducing a certain dimension of emptiness, or an activity of emptying a situation from its fullness. Say there is a person - a farmer? - standing in a field surrounded by a farm etc, a painter can chose, for example, to concentrate just on the hands of this farmer, painting only them, without giving us the entire situation. What happened here? the painter ABSTRACTED the hands from the fullness of the situation, and opened a certain empty space around them (the wall, the outside of the painting, the white canvas itself, etc). this empty space is what is now ACTIVATED, replacing the fullness of the content, and opening the existence of the hands to the possible as such, that which can come out of emptiness, precisely because the meaning of the hands and their gestures is no longer to be interpreted in relation to the context, but opens up the possibiliity of new meanings, new interpretations, new use of the hands. As such, to abstract means to detach from the meaningful context, replacing meaning with an empty "space" or time, where something can nopw happen unpredictably. This is THE basic gesture of art, from early paintings down to Duchamp, who, in his famous toilette, simply abstracted the toilet from its contextual surrounding, and exposed it to the emptiness of a museum where it can change its signification to anything what soever, thus demonstrating that art is not about creating new objects, but about giving emptiness, or activating emptiness.
As such, this introduction of emptiness is an activation of existence, if we understand existence, or life, as that openness to transformation where things can mean in new ways, and whereby we learn to engage things in new ways. the emptiness is what gives us the freedom to exist, or to open up new meanings, etc. In this sense, every art is abstract rather than representative, not about something preexisting it, but about creating emptiness out of which the new comes. In this sense as well another old dichotomy, between the figurative (which is not the same as representative) and the abstract is itself canceled as well, in that figuration, the creation of a figure in art, is itself an activity of abstraction, whereby a human being, for example, say the farmer, is abstracted from an overall situation and is isolated on picture, and immediately the farmer turns from a person to a figure, that which exists in the domain of art, figure meaning precisely the activation of emptiness happening through the transformation from a person to a decontextualizing painting. (In relation to this question of the figure, see the discussion of the figures in the paintings of Francis Bacon as described by Gilles Deleuze in his book, The Logic of Sensation)
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