The whole reason I moved to the U.S. to be coached by Alberto Salazar is to be able to improve 1 or 2 per cent. I was sick of coming sixth in the world, seventh in the world, and get close to a medal, but not quite there, half-a-second.

Growing up, I would never have thought that I'd be a double Olympic champion, with a lovely home and beautiful kids.

I don't know much about politics, but you have to look at it with the bigger picture and think what's best for us now, what's best for us in 10 years' time, what's best for our kids' kids' future - and I don't know.

My first Olympics memory was watching Haile Gebrselassie in Sydney 2000. His sprint finish to defend his title really moved me.

Technology has enabled an environment where information is constantly fed to us on a real-time basis. You can't slow the feed of information, nor would you want to, but you can control and organize your consumption.

With the never-ending stream of new social technologies, apps and platforms rolling out every day, its easy to get lost in the minutiae of social media. Yet for there to be effective change, especially within large, top-down, hierarchical institutions, a company must have an over-arching understanding of the new role it has to play.

Social media is an amazing tool, but it's really the face-to-face interaction that makes a long-term impact.

I'm a pretty early adopter of social media. There's a whole subculture to it. I'm smart enough not to tweet things out of emotion.