I see three forces militating in favor of growing inequality: increasing measurement of worker value added, automation through smart software, and globalization.

Look at electricity in human history - it took a few decades for electricity to really revolutionize the American economy. And the Internet will be the same. At some point in the future, we will arrive at a new era of low-hanging fruit.

When you look at the actual data on technological innovation, one thing you see is that what I call the 'low-hanging fruit' has been exhausted. So radio, flush toilets, electricity, and automobiles - a lot of very basic inventions - have spread to almost all households.

The iPhone is made on a global scale, and it blends computers, the Internet, communications, and artificial intelligence in one blockbuster, game-changing innovation. It reflects so many of the things that our contemporary world is good at - indeed, great at.

There's no great mystery to acting. It's a very simple thing to do but you have to work hard at it. It's about asking questions and using your imagination.

Yesterday I was thinking about the whole idea of genius and creative people, and the notion that if you create some magical art, somehow that exempts you from having to pay attention to the small things.

I know it sounds silly, but in auditions for film or TV, the words aren't as important - you need to get into the character and have the gist of the scene. But in theater, if you don't do it word for word, then you throw off your scene partner.

Toplines usually suck. I'll send a song to a band or artist whose entire body of work I love and I'll ask them to do a vocal for one of my songs and I'll get it back and I'll hate it so much. It might have to do with my possessiveness over my music.