A few years ago, I was invited to do the keynote for the Tasmanian Economic Forum. You’ve got the wrong person, I told them. Of all subjects on earth, economics is the one I know least about. And definitely care least about. One need only begin to say the word, econo … zzzzzzz … and I’m snoozing off. But they insisted: they wanted someone from outside their world, someone fresh, to shake things up.