That's a central part of philosophy, of ethics. What do I owe to strangers? What do I owe to my family? What is it to live a good life? Those are questions which we face as individuals.

Sometimes we know the best thing to do, but fail to do it. New year's resolutions are often like that. We make resolutions because we know it would be better for us to lose weight, or get fit, or spend more time with our children. The problem is that a resolution is generally easier to break than it is to keep.

When diamonds' role in fuelling violent conflict in Africa gained worldwide attention, the diamond industry established the Kimberley process in order to keep ""blood diamonds"" out of international trade.

I'm not overly alarmist about it, but I do think there are some worrying signs, like the growing accumulation of wealth by a very small proportion of the population, plus elections in the US are much more dominated by money than anywhere else calling itself a democracy.

I think the advent of the Internet gave us all a big boost, because by the time the Internet became mainstream and you could get it in your home, a lot of us were used to dealing in fan culture, writing to magazines or anything at the back of comic books.

By the time I'm 75 and I have a new hip, and my eyes are laser cleaned of cataracts, I wont think I'm a bionic man. I think that's just how technology works. The posthuman future of humanity will not announce itself; it will just creep up on us.

The money factor had been kind of my excuse as to why I hadn't put out any music. So I just found the cheapest way to make music and get it to people, and that was via the Internet.

Combining technology and fashion shouldn't be about PR gimmicks - they should genuinely enhance the experience of buying, owning and experiencing a luxury product.