I ended up realizing that NASA was unlikely to get me into space, or get me to the moon or beyond, and I needed some other way to drive this.

I'm not saying we don't have our set of problems - climate crisis, species extinction, water and energy shortage - we surely do. But ultimately we knock them down.

Small teams driven by their passion with a clear focus can do extraordinary things. Things that only large corporations and governments could do in the past.

Go and try to start your own government in the United States today and you'll be squashed very quickly.

The price to generate a megawatt or a gigawatt of energy is coming down year after year. We're learning how to print it, make it more efficient.

If you believe that the developing world deserves the same standards of living that we do in the developed world, then to achieve that, they need resources. They need the metals and the minerals to build the industries and the buildings and so forth, and the energy.

Eight billion people will have Internet access by 2020.