I just try and learn to be a good husband and be a good father before I am a good rock star. That means saying no to certain things that go with the business.

It has been said that the great scientific disciplines are examples of giants standing on the shoulders of other giants. It has also been said that the software industry is an example of midgets standing on the toes of other midgets.

A powerful tool in the early stages of developing scenarios is to pretend the interface is magic. If your persona has goals and the product has magical powers to meet them, how simple could the interaction be? This kind of thinking is useful to help designers look outside the box.

If you are not going to produce albums then you are not going to produce new fans. It's impossible. I'm a huge believer in putting music out as quickly as early as possible, touring hard and then working on putting the next one out. I don't need to break. I just need to put a record out.

Design principle: Take things away until the design breaks, then put that last thing back in.

I just like so many different kinds of music that I like experimenting. I don't want to keep making the same record over and over and over. I'm an 'evolve or die' kind of a musician. I think it's cool to try new things.

Define what the product will do before you design how the product will do it.