I don't often go to curator or artist walk-throughs of exhibitions. For a critic, it feels like cheating. I want to see shows with my own eyes, making my own mistakes, viewing exhibitions the way most of their audience sees them.

Of all the biennials, triennials, quadrennials, internationals, and massive group shows, Documenta, established in 1955 and held once every five years in Kassel, Germany, is seen as the most serious. A statement show.

All of Koons's best art - the encased vacuum cleaners, the stainless-steel Rabbit (the late-twentieth century's signature work of Simulationist sculpture), the amazing gleaming Balloon Dog, and the cast-iron re-creation of a Civil War mortar exhibited last month at the Armory - has simultaneously flaunted extreme realism, idealism, and fantasy.

The art world is an all-volunteer force. No one has to be here if he or she doesn't want to be, and we should be associating with anyone we want to.

Everyone goes to the same exhibitions and the same parties, stays in the same handful of hotels, eats at the same no-star restaurants, and has almost the same opinions. I adore the art world, but this is copycat behavior in a sphere that prides itself on independent thinking.

New York being what it is, our museums are vertical, not horizontal. That means the stumbling blocks to architectural clarity are unavoidable - but certainly surmountable.

I love art dealers. In some ways, they're my favorite people in the art world. Really. I love that they put their money where their taste is, create their own aesthetic universes, support artists, employ people, and do all of this while letting us see art for free. Many are visionaries.