I've been working with contractors designing and building a house on a nonstop basis since 2005. I learned about all these systems of audio, construction, electricity, energy, water systems.

The good news is that the current energy prices are underestimated and utility charges such as water and electricity are sure to increase, led by pressure from climbing energy consumption.

When I was four or five years old, my grandfather showed me how to build things, paint, saw. Through years of fixing bikes, repairing lawn mowers, I learned how things work.

I knew there were all kinds of interesting things going on at Google, but now that I've seen them, my mind has been blown - in a great way. They have all these amazing projects and people that the world doesn't know anything about. I'm like a kid in a candy store - it's an idea factory.

I knew a lot about product design before coming to Apple, but I didn't understand a lot about consumer experience design, which is really Apple's forte.

We're not going to see this much energy in a building probably until 2010. We really learned a lot this time, and I think we're going to be much better skaters because of that.