The revolutionary breakthrough will come with rockets that are fully and rapidly reusable. We will never conquer Mars unless we do that. It'll be too expensive. The American colonies would never have been pioneered if the ships that crossed the ocean hadn't been reusable.

Steve Jobs' ability to focus in on a few things that count, get people who get user interface right, and market things as revolutionary are amazing things.

So, what I think, sometimes a pure tech company can underestimate is the importance of culture, the importance of a purpose.

We've actually set the tech priorities driven off what we want to build for customers and what they're asking us to solve, and that's how it's going to be, and that is a cultural tension even today because we actually want some of both, we want ownership.

I think most Americans probably don't know what a tech makes that helps take care of our stores and clubs and that we can help them learn how to be a tech. The same thing's true for our drivers. So we have a need to get the word out so that people know there are some great jobs.

In technology, we need revolutionary change, not incremental change.