Adam Thirlwell, 37, is an extravagantly gifted novelist whose fiction looks unflinchingly at sex and finds a lugubrious comedy in human failings. His first novel, Politics, published in 2003, was good enough to put him on Granta’s once-a-decade “Best of Young British” list, and invited critical opprobrium as well as praise. In the manner of the tricksy Czech author Milan Kundera (Thirlwell’s hero), the novel was wildly digressive, with pages of modernist preening in which nothing much happens. Inevitably, such smarty-pants fiction divided the critics.