In troubled times, the advice from the Hitchhiker’s Guide is always well worth remembering. OK, so North Korea has performed a nuclear weapons test, and I’m not going to try downplaying that fact. But it’s worth bearing in mind that the jury is definitely out on how well it went, with some commentators pretty convinced it was actually the first failed test of a simple fission device ever. I’m with John Scalzi though, as to wondering how long it’ll be before someone blames it all on Bill Clinton…