In the broadest sense, art doesn't have a function for homo sapiens — it is a function of homo sapiens. Humans perceive-and-generate patterns in biologically and socially inseparable processes which generally precede application of those patterns. That's what makes the species so adaptable and dangerous. Even in the most rational or practical occupations, we're guided to new utilitarian results by aesthetics.Software engineers, for example, are offended by bad smells and seek a solution that's "Sweet!"
Then I picked up, on the way out of work, a book someone had left for anyone to take, on the Invention of Primitive Culture. The idea is that primitive culture simply does not exist, is not reconstructable in any meaningful way. If there is no primitive culture, there is no primitive art either. So I had an idea to write an article called "Theses on the Anthropology of Art." The ideas for this started to form in my head. Of course, I know nothing of the anthropology of art, so I would have to do a lot of reading.