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.

In the 1950s that tug-of-war between the expectations of behaving normally and the limitlessness of thinking freely produces some very strange characters.

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.

To be a scientist you have to be willing to live with uncertainty for a long time. Research scientists begin with a question and they take a decade or two to find an answer. Then the answer they get may not even answer the question they thought it would. You have to have a supple enough mind to be open to the possibility that the answer sometimes precedes the question itself.

I always wanted to be a scientist. I don't really have any writer friends. The process of being a writer is much more interior than being a scientist, because science is so reactionary. I think that all research scientists think of themselves as belonging to a grand tradition, building on work that has been worked on since the very beginning of science itself. Whereas I'm not sure writers think of themselves in the same way.

It is always sort of unnerving to hear from people who've read my books. I'm not reading any of the reviews and most of my friends haven't read it - they bought it, which is all I frankly care about, but they haven't read it.