As an entrepreneur, I try to push the limits. Pedal to the metal.

There has to be a large number of people and routes that are lined up together. One part is liquidity and the other part is product - there's a lot that can go wrong.

The world is going to go self-driving and autonomous. Because a million fewer people are going to die a year. Traffic in all cities will be gone. Significantly reduced pollution and trillions of hours will be given back to people - quality of life goes way up.

When theres no other dude in the car, the cost of taking an Uber anywhere becomes cheaper than owning a vehicle. So the magic there is, you basically bring the cost below the cost of ownership for everybody, and then car ownership goes away.

If you bring that scrappy fierceness with you it works until you get big, when really pushing all the way really feels uncomfortable...When you're the little guy that's lauded, that's heroic.

Our whole goal is to drive the cost of taking an Uber BELOW the cost of owning a car.

In a lot of ways, it's not the money that allows you to do new things. It's the growth and the ability to find things that people want and to use your creativity to target those.