Art, not now but later.

The question is the same, rephrased; What is art?
Is there something intrinsically 'art' about a painting in a gallery that ceases to exists when the painting is moved into the street? Is a photograph art when it is in a storage container, or only when it is hung, labeled, lit, and behind glass?
Allan Kaprow, in his article Success and Failure When Art Changes, speaks of a project in which inner-city Bay Area youth created images and stories out of photographs, paint, ink, and discarded "Dick and Jane" books. Kaprow says that since the works were never published or discussed in artistic circles, they failed to meet the public definition of art.
Is that when something becomes art? When it is discussed, printed, reviewed, published and distributed? That sounds more like commercial success. A hermit in a cave, painting on the wall, will have created to same image, whether or not someone comes along after his death and discovers the paintings.
Without discovery the art may never enter the social consciousness, the greater knowledge.
But this does not affect its existence as art.