My father collected turtles when he was young. My parent's wedding album, there's two pictures of them getting married and the rest are just pictures of turtles. I remember they had Galapagos tortoises that they had somehow imported illegally and a bunch of other turtles too. I like the animals themselves. They're so self-possessed and self-contained and there's something wise and mysterious about them. I also like that they are prehistoric animals.

I was fortunate to be at that school in an era in which encounters between students and teachers were encouraged; there were a number of teachers who lived on campus, and they'd regularly invite students over for dinner on the weekends. I hope it's still like that: being treated seriously by an adult you admire is a great gift. Children, like adults, want respect - but it's only when you're older that you realize how few people actually extend it.

The big characters who occupy science, especially modern science, are all "off" in fundamental ways. I don't think that genius goes hand in hand with being socially inept or being a sociopath or being a misanthrope, but I do think that it is a mind that can think so differently - so beyond how one is supposed to think. I wanted to pay tribute to that mind.

There are times I wish I didn't have a job, even though I love my job: I get to work with interesting, eccentric colleagues and equally interesting and eccentric subject matter, both of which are rarities. But, naturally, I would treasure having more freedom someday: of time and of movement. Will I always have a full-time job? I don't know. But I do know that I need to spend at least part of my week in an office, with other people.

Witing is essentially interior work, and many writers are interior personalities. Having a job forces you out of the world of your work, and into the one in which you get to observe people. Yes, you can imagine all this, but as a fiction writer, you can never observe enough the rhythms of how humans move through the world. A job demands that you structure your time much more carefully. You learn how to be resourceful, and that in turn provides a certain intensity of focus.

I've never really understood the desire to be immortal myself. The idea of both wanting to live forever in some form and wanting to stay young forever just sounds exhausting. It's one of those desires that people think they want but when you actually stop to think about what it actually means, it's really awful. One of the reasons that life is bearable is because it's going to end soon. One of the main concerns of fiction is how do we make a life of 85 years or so meaningful.

I know I'm a better editor than I was when I began, twenty years ago. I'm less scared of the text, I'm less scared of the writer, and, crucially, I no longer believe that I have to leave my mark on every story.