London’s West End is stuffed full of Old Chestnut revivals. “All the big musical shows are designed to make audiences feel safe about going to the theatre. This is a valid, indeed admirable, function of the art form; most people don’t want to buy a £50 ticket for the shock of the new. We hanker after entertainment as a comfort zone. But there is a danger that by leaving new work almost entirely to the subsidised and fringe theatres, the West End will prosper only as a money-making mausoleum.”