That’s what everything comes down to: ladders. Well, not ladders literally; the Middle East peace process doesn’t come down to ladders, and nor do the money markets. But one thing I know from interviewing people on the show is that you can reduce the most enormous topics down to the tiniest parts, as if life were an Airfix model. I’ve heard a religious leader attribute his faith to a faulty catch on a garden shed (he got locked in for a night when he was a kid, and God guided him through the darkness); I’ve heard a hostage describe how he survived because one of his captors was fascinated by the London Zoo family discount card he kept in his wallet. You want to talk about big things, but it’s the catches on the garden sheds and the London Zoo cards that give you the footholds; without them you wouldn’t know where to start.