"Back in summer, on a hot bright morning, [Lisa] Dwan put “Not I” through its paces at the Royal Court Theatre, in London. “I do it three times a day for a month before it opens,” she said. A vertical board, eight feet high, was wheeled onto the stage. At head height was an oval gap, not unlike the openings through which customers at amusement parks used to poke their faces to be photographed. This was the unamusing kind, with the hole lined in black felt. “There’s still some blood around the edges,” Dwan said. “It cuts my ears.”"