Red tape will often get in your way. It's one of the reasons I often carry scissors!

If you offer people a decent service, if you give them you know Internet access, if their phones are not cut off on the trains, you know if you have plugs where they can plug in their computers, and if you have a smiling, cheerful staff; and if you can travel really quickly, then you can make a success out of the rail business.

I've used the Phoenix Centrifuge to replicate what the body's going to go through on the flight up. I've also done some gravity tests with ZERO-G [a charter-flight service in Arlington, Va., that uses modified Boeing 727s to simulate weightlessness], which went great.

However tight things are, you still need to have the big picture at the forefront of your mind.

If you get into entrepreneurshi p driven by profit, you are a lot more likely to fail. The entrepreneurs who succeed usually want to make a difference to people’s lives, not just their own bank balances. The desire to change things for the better is the motivation for taking risks and pursuing seemingly impossible business ideas.

An entrepreneur is somebody who is taking bold risks, is often doing things that have never been done before, trying to do things better. And an adventurer is challenging themselves, often doing things that have never been done before, seeing what they're capable of. In both cases, you've got to protect against the downside.

The brands that will thrive in the coming years are the ones that have a purpose beyond profit.