Welcome to the fifth edition of Junction Box. Fifth sounds good, in a modest sort of a way, it has a hint of a jaunty outgoing air about it. The pubescent hippogriff paws at the grass, eyes the horizon and senses the viability of its full-fledged vans. That kind of thing. Anyway, it feels like one of those stages worth a mention. At the start - cheerfully mixing metaphors here - Junction Box was a bit of a leap into the unknown; a tentative leap into the unknown at that. It still feels like an experiment and I hope it always will, but thanks to the openness and generosity of so many fine writers, the experiment has already more than justified itself, in my opinion and judging by the comments rolling in (for which, heartfelt gratitude). The fifth edition, like the first four, is a fascinating...