As you might have guessed by now, I quite like to write. As with much of my professional or personal life—where I never let absence of knowledge get in the way of holding an opinion on something—I don't much let absence of ability get in the way of my enthusiasm. I seem to get away with it quite a lot of the time, but every now and then I catch a glimpse of the way I'd really like to be able to write. This week, for me, it was reading Atul Gawande. In case you've not come across him, he's a surgeon based in Boston who …