I suspect in most companies, the public relations person is down at No. 20 in the pecking order. But here, he is fighting incredibly important battles. If a negative story starts running away with itself in the press and is not dealt with fast, it can badly damage the brand, and so we put enormous weight on our PR people.

I am prepared to try anything once.

We have the enormous opportunity in our hands to make a positive difference for business, people, and the planet.

We've definitely cracked the technology. Now we're just trying to be able to produce the amount of fuels that we need to satisfy our own needs and then other people's needs.

I think a lot of becoming an entrepreneur is something which people have to learn just from getting out there and giving it a go, and having to learn the art of survival.

With space travel, [it's] no different. You know, in 1990 I read the name Virgin Galactic Airways. Loved the name. And set out to try to find an engineer or rocket scientist in the world who could build a safe, reusable rocket that could take people to and from space and we could start a whole new era of commercial space travel.

Money is a poor indicator of success.