Luckily, I'm not a stand-up comedian, so I don't get the fear of standing on stage in front of a dead audience: my humorous pieces have to make it past an editor before they get exposed to the public.

Science fiction was rocket-mad for about 40 years until aerospace hit a brick wall about 1970. I would not write off space colonisation or exploration completely, but we are profoundly ill adapted for going boldly into outer space.

I write more for the children of the computer revolution, who are also interested in speculation and exploring the human condition, but approach it from an information perspective.

History is another country and might be full of fascinating incidents and places to go visit - but as a destination for emigration, it has some problems!

Let me tell you - when I was standing there on top of the world, you become so humble. You don't think about breaking records anymore, you don't think about gaining scientific data - the only thing that you want is to come back alive.

I can't explain chemistry. I really can't. I haven't got a clue what it's all about. It just happens. It's like falling in love. You can't explain why you fall in love or explain why it's this particular person.

My social philosophy may be said to be enshrined in three words: liberty, equality and fraternity. Let no one, however, say that I have borrowed by philosophy from the French Revolution. I have not. My philosophy has roots in religion and not in political science. I have derived them from the teachings of my Master, the Buddha.

Art makes us human, music makes us human, and I deeply feel that science makes us human.