Elizabeth Peyton, the artist known for tiny, dazzling portraits of radiant youth, is now painting tiny, dazzling portraits of radiant middle age.

More and more in the art world are becoming moralistic, telling artists and critics what they should and shouldn't write, do, or make art about. Never mind the intellectual hypocrisy of this: Those who violate the clublike code are made out to be wrong, immoral, corrupt.

Poor Georgia O'Keeffe. Death didn't soften the opinions of the art world toward her paintings.

Art is good, bad, boring, ugly, useful to us or not.

Where Cezanne captured and intensified shards of the eternal (every pear far more sharply defined than it could be in life), Monet portrayed the changeability and flux of every moment. 'The Water Lilies' give you a jittery, amorphous sense of a world seen at the speed of light.

Urs Fischer specializes in making jaws drop. Cutting giant holes in gallery walls, digging a crater in Gavin Brown's gallery floor in 2007, creating amazing hyperrealist wallpaper for a group show at Tony Shafrazi: It all percolates with uncanny destructiveness, operatic uncontrollability, and barbaric sculptural power.

You can't prove Rembrandt is better than Norman Rockwell - although if you actually do prefer Rockwell, I'd say you were shunning complexity, were secretly conservative, and hadn't really looked at either painter's work. Taste is a blood sport.