There was discussion recently in another thread ( where I think the conclusion (or one of the conclusions) was that good art is art that communicates the artist's message well. Good art doesn't need a particular medium or a particular set of rules, it just needs a good artist working skillfully in a medium.

That's a different conversation than what is fine art, which is I think what this thread is really about. A really good work on a Polaroid and a big masterly piece of oil painting - they are both art, and they are both done well and skillfully, but how do we get any further?