It took the Metropolitan Museum of Art nearly 50 years to wake up to Pablo Picasso. It didn't own one of his paintings until 1946, when Gertrude Stein bequeathed that indomitable quasi-Cubistic picture of herself - a portrait of the writer as a sumo Buddha - to the Met, principally because she disliked the Museum of Modern Art.

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.

Venice is the perfect place for a phase of art to die. No other city on earth embraces entropy quite like this magical floating mall.

Appropriation is the idea that ate the art world. Go to any Chelsea gallery or international biennial and you'll find it. It's there in paintings of photographs, photographs of advertising, sculpture with ready-made objects, videos using already-existing film.

After its hothouse incubation in the seventies, appropriation breathed important new life into art. This life flowered spectacularly over the decades - even if it's now close to aesthetic kudzu.

The New York art world readily proves people wrong. Just when folks say that things stink and flibbertigibbet critics wish the worst on us all because we're not pure enough, good omens appear.

Artistic qualities that once seemed undeniable don't seem so now. Sometimes these fluctuations are only fickleness of taste, momentary glitches in an artist's work, or an artist getting ahead of his audience (it took me ten years to catch up to Albert Oehlen). Other times, however, these problems mean there's something wrong with the art.

Can space break? I mean the space of art galleries. Over the past 100 years, art galleries have gone from looking like Beaux Arts salons to simple storefronts to industrial lofts to the gleaming giant white cubes of Chelsea with their shiny concrete floors.

It's great that New York has large spaces for art. But the enormous immaculate box has become a dated, even oppressive place. Many of these spaces were designed for sprawling installations, large paintings, and the Relational Aesthetics work of the past fifteen years.

The giant white cube is now impeding rather than enhancing the rhythms of art. It preprograms a viewer's journey, shifts the emphasis from process to product, and lacks individuality and openness. It's not that art should be seen only in rutty bombed-out environments, but it should seem alive.