Events, once happened, lose reality, alter with a glance, a storm, a night. In time, the past never happened. But who could know? Who could know that the past is not as solid as this instant.

Music is, of course, a universal emotional experience, cutting across cultures and languages. I studied piano for ten years as a child and consider that experience one of the most valuable in my life.

Novels aren't pedagogical instruments, or instructions in law or physics or any other discipline. A novel has to be an emotional experience, a trip of the imagination, and because science has raised so many issues that concern and affect humans, it's a good starting place for me.

What sense is there in continuing when one has seen the future?

I consider myself an essayist and a fiction writer. In the essays, I certainly have been influenced by some of the leading science essayists. Like Loren Eiseley, Stephen Jay Gould, Lewis Thomas.

A world in which time is absolute is a world of consolation. For while the movements of people are unpredictable, the movement of time is predictable. While people can be doubted, time cannot be doubted. While people brood, time skips ahead without looking back.

"The Diagnosis" is by far my most ambitious book. I such great hopes for it... there was so much I wanted to do with the book. I was extremely insecure about it for several years. Just didn't know whether I would finish the book much less for it to come close to what I intended. I think that for any novel you never know exactly how the book is going to turn out...