For most of that time, I've also been a keen gardener, but for many years I failed to make the connection between gardening and science.

You can't trust code that you did not totally create yourself.

I am a very bottom-up thinker.

I don't think there are many people up in research who have strong ideas about things that they haven't really had experience with.

That brings me to Dennis Ritchie. Our collaboration has been a thing of beauty.

So maybe I can go back to being a Gardeners' World addict again.

I view Linux as something that's not Microsoft - a backlash against Microsoft, no more and no less.