‘What is “experimental” art,’ the late Christine Brooke-Rose once asked, ‘or an “experimental” novel? Is it a genre?’ The question was the theme of a symposium on her life and work at the Royal College of Art last week, organised by Natalie Ferris. Tom McCarthy, like Brooke-Rose mistrustful of the label, suggested that the question had to be: ‘Experimental compared to what?’