There's great interview with Paul Graham over on Seesaw here.. Very insightful.

PG: One of the difficulties that I’m facing right now is that I’m pretty comfortable with shimmer – I think that it’s a really good piece of work, and that’s a scary thing, because I don’t know quite what to do next. How do I follow this up without it being the same? I think that comfortableness can sometimes be an enemy, and scaring yourself by finding a new way to practice is for people like me. But I’m not going to worry about it – like I said before, I just have to keep telling myself, ‘Relax. It’s everywhere and everything.’

Paul Graham