My motivation has always been to do technology apps and companies, not making money. Just because the money's come, nothing's changed.

One thing I'd like to do is angel investing in small companies. That's what's exciting, and if you are lucky to have a bit of money, you can take those risks.

I like playing sport. I'm a bit of a design enthusiast, and like spending time with my girlfriend and mates.

I put together an iPhone app called TrimIt and released that in July 2011. About a month later, the private fund of the Hong Kong billionaire Li-Kashing cold emailed me and expressed an interest to invest, but they didn't realize I was 15. They thought it was a U.K. company with a team.

It's hard for us in our stores to be a leader in technology.

There is great potential to use computer vision technology in a constructive and benevolent way.

We face paired dangers. The first is that our networks are successfully attacked. The second is that our fear of attack will cause us to destroy what makes the Internet special.

And I certainly like being on a plane, next to a stranger, having conversations that you'd never otherwise have. You're unplugged, your phone doesn't work, you're not online.