The least interesting part of Doris Lessing’s Nobel Prize speech has been getting a lot of attention this week — the part where she claims that the speed by which the internet has been developed has led to a sort of mesmerism by screen, and has subsequently caused a serious devaluation of the book and of reading and of education and expertise. I don’t think she’s entirely wrong, nor do I think the online reaction, that this is the part of her speech where she sounds most like a cranky old woman, is invalid either. But that was not the…