"Happy Days in the Art World" is a self-mythologizing art-world satire by Michael Elmgreen and Ingar Dragset, the Scandinavian artist duo responsible for the superbly furnished Danish and Nordic pavilions at the 2009 Venice Biennale. As the opening night attraction of the Performa '11 Biennial at NYU's Skirball Center on Nov. 1, 2011, the premiere at was actually less theatrical than those walk-through installations. It was also more instructive.