"Tweeting is something you can do wherever you are, on your phone, on the computer, in an airport lounge. It's easy to do, and I do find it fun to communicate with people. It's quite nice that we can have almost direct contact with anyone in the world at any time. I don't know how important it is in terms of one's career. It seems to be pretty much superfluous in terms of that, but it's nice to communicate."