There's a lot of hate mail from readers. There's hate mail, threats, stalkers... I think that I'm bulletproof every week when I've turned something in. I think, I'm a god.

Not to say people shouldn't get rich from art. I adore the alchemy wherein artists who cast a complex spell make rich people give them their money. (Just writing it makes me cackle.) But too many artists have been making money without magic.

Anyone who relishes art should love the extraordinary diversity and psychic magic of our art galleries. There's likely more combined square footage for the showing of art on one New York block - West 24th Street between Tenth and Eleventh Avenues - than in all of Amsterdam's or Hamburg's galleries.

Kinkade's paintings are worthless schmaltz, and the lamestream media that love him are wrong. However, I'd love to see a museum mount a small show of Kinkade's work. I would like the art world and the wider world to argue about him in public, out in the open.

'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.

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.

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.