It's a scary question for a musician or songwriter today - what does the future hold? It is a strange time in the music business too; it feels like we are all in some kind of transitional period, stuck between old technology and new.

Writing a song is a long road. Or it can be.

I guess I could be singing about Superman, or about Zarathustra coming down from the mountain, but in my mind I was singing about Julian Assange. I wish I could say that Nietzsche inspired my lyrics but all I can honestly say is I was inspired by the graphic design of these '70s paperback covers for Beyond Good & Evil and The Birth of Tragedy and The Gay Science.

They didn't teach Nietzsche in the philosophy department at Harvard; philosophy there was strictly analytical stuff and the poetic ramblings of Nietzsche did not belong. And see - you are teaching it in a literature class - so they must have been right.

It's not often I get to do a film that turns out good. Plus, there just aren't that many great directors out there. There are a thousand different decisions that need to be made with each script and it's the good directors that can make those decisions. It's a long and complicated process in regards to what looks good on paper. Working on a bad film can be fun too. It can be a good exercise that gets you writing.

It's a scary question for a musician or songwriter today - what does the future hold? It is a strange time in the music business too; it feels like we are all in some kind of transitional period, stuck between old technology and new.

It's hard to imagine the whole punk movement without The Velvet Underground. I toured with them when they did their reunion tour, and no one sounds like that; they are a very unique-sounding band. They have a lot of noise, they have a viola, they have a drummer that's standing up, certainly they have influenced my guitar playing, but hopefully after 12 records you start to sound like yourself.