Technology leadership is not defined by patents, which history has repeatedly shown to be small protection indeed against a determined competitor, but rather by the ability of a company to attract and motivate the world's most talented engineers.

People were wondering, "How do you even do food e-commerce? Are we going to be dropping strawberries on somebody's doorstep? It doesn't feel like we're going to be doing that". But what we believed is that in the US pickup might work. So we started in California and then Denver, and a team started working to put everything in place to do grocery pickup and in the beginning we even had a separate app. It was an orange online grocery app.

I'm interested in things that change the world or that affect the future and wondrous, new technology where you see it, and you're like, 'Wow, how did that even happen? How is that possible?

Self-driving cars are the natural extension of active safety and obviously something we should do.

People often mistake technology for a static picture. It's less like a picture and more like a movie. It's the velocity of technology innovation that matters. It's the acceleration.

Boeing just took $20 billion and 10 years to improve the efficiency of their planes by 10 percent. That's pretty lame. I have a design in mind for a vertical liftoff supersonic jet that would be a really big improvement.