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.

My kids are Irish; I want them to grow up playing Gaelic football and learning Irish.

I don't think it is difficult to balance professional sports with practising your faith. It is very easy if you follow the right path.

I've seen myself do stuff on stage that was pretty amazing. I think that would be true for any athlete. Any top athlete will see something that they are very proud of. All my injuries will attest to the fact that besides being a musician, it comes down to being an athlete.

It's a great thing because I've said to my lad, 'What do you want to do today - football, shopping, playing a game?' and he says, 'I want to bake with you, Dad.' And he loves it, baking with me.