Early-twentieth-century abstraction is art's version of Einstein's Theory of Relativity. It's the idea that changed everything everywhere: quickly, decisively, for good.

Any negative review you write, they'll say, "Oh, you're being so mean." I think the problem with a lot of criticism is that too many critics either write just description or they write in a Mandarin jargon that only a handful of people can understand, or they write happy criticis - everything is good that they write about. I think that's really not good. I think it's damaged a lot of our critical voices.

If the Frieze Art Fair catches on, I imagine at least two great things happening. First, we will once again have a huge art fair in town that isn't too annoying to go to. More importantly, Frieze may finally show New Yorkers that we can cross our own waters for visual culture. That would change everything.

The alchemy of good curating amounts to this: Sometimes, placing one work of art near another makes one plus one equal three. Two artworks arranged alchemically leave each intact, transform both, and create a third thing.

My culture-deprived, aspirational mother dragged me once a month from our northern suburb - where the word art never came up - to the Art Institute of Chicago. I hated it.

'Untitled' is a time machine that can transport you to 1992, an edgy moment when the art world was crumbling, money was scarce, and artists like Tiravanija were in the nascent stages of combining Happenings, performance art, John Cage, Joseph Beuys, and the do-it-yourself ethos of punk. Meanwhile, a new art world was coming into being.

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.