“What about if I do get selected for Mars One, what are the health risks that astronauts face? What would my life look like?
Is the Dianne McGrath today going to be good enough – in a physical and mental sense? Will I be able to deal with that? I don’t know. And I realised that no, heck no, there’s no way I’d have been able to get into a spaceship at that point in time. I needed to become a totally different person. I had to change.