Help with question(please) Hi, there Could you help me? In "Nobody can write about the history of the twentieth century like that of any other era, if only because nobody can write about her or his lifetime. (...) I think it is now possible, but I come to it without the knowledge of the scholarly literature, let alone of all but a tiny sprinkle of archive sources"... What does "like that of any other era" mean?And what does "let alone of all but" mean? Please....