Initially, I harboured a somewhat naive belief that the system's failings were largely due to a scarcity of people willing to do the right thing. Working for international organisations, I was caught up in the belief that we could fix broken systems simply by introducing the right resources, processes, and intentions. However, I've come to realize that good intentions alone are insufficient.

If you're an artist, you start with catharsis. You have to express your own feelings. I genuinely believe that if music comes from your heart and soul, that people will hear that and will be able to connect with the truth of it.

I think Apple is preposterously undervalued. Apple has this mind-boggling margin structure, phenomenal consumer brand, and is accumulating mountains of cash. I joked on television that they should lever up and buy Greece! They have something like 7x cash-flow.

Todays' politicians can't lead public opinion, because they're frightened of it – and we're so consumed by constitutional crises, that there's just no real chance that politicians can give these issues sufficient thought.

We are facing the mother of all debt crises. When you look at the data on private and public debt, the debt to GDP ratio was near 200% of global GDP in 1999, today it's more like 350% and rising. In advanced economies, it's over 420% and in China, 330% and rising.