it is clear enough to me that he did exist, but there is also a sense, is there not, in which both Dickens and Sidney Carton might be said to have at least some sort of vicarious existence, insofar as they can make an impression on a reader of 'A Tale of Two Cities'.An ultra reductionist, I would argue, might deny the existence of such things as tables and chairs, or - rather more crucially - decis