Some months ago, Jennifer Howard used a critical review of Susanna Clarke’s Jonathan Strange and Mr Norrell to argue that fantasy should be about “high seriousness,” “magic that battles for the soul of the world,” and above all, “the epic sense of Good and Evil, of things larger than ourselves, that makes the best fantasy ...

In 2008, Paul Graham mused about the cultural differences between great US cities. Three years earlier, Graham had co-founded Y Combinator, a “startup accelerator” that would come to epitomize Silicon Valley — and would move there in 2009. But at the time Graham was based in Cambridge, Massachusetts, which, as he saw it, sent a different message ...