I've done a couple of conferences where you sit and sign autographs for people, and then you have photographs taken with them and a lot of them all dressed up in alien suits or 'Doctor Who' whatevers. I was terrified of doing it because I thought they'd all be loonies, but they are absolutely, totally charming as anything. It's great fun.
Where humanity is going to find itself in, say, 20, 30, 40, or 50 years would be very difficult to predict, I think. There are moments, of course, when you think that it's going from bad to worse, but there are other moments when you think that human efforts are really flowering into something really fantastic.