Making the world a better place always seemed like very serious business to me. It’s serious because, in thinking about how to make the world a better place, I have to confront and think about some of the most awful problems in the world – the stuff that makes me feel sad, angry and scared. It’s serious because it inevitably involves intervening in some way, and with that comes the responsibility of wielding my power appropriately and sensitively. And it’s serious because when I intervene, my actions can have a big impact on other people’s lives, and even if my intentions are good, it’s possible to still harm other people, and I want to be sure that I’m helping and not harming. And it’s always seemed serious because it’s important to me. And surely if something’s important to you, it should be taken seriously?