In a world without future, each parting of friends is a death. In a world without future, each loneliness is final. In a world without future, each laugh is the last laugh. In a world without future, beyond the present lies nothingness, and people cling to the present as if hanging from a cliff.

We often do not see what we do not expect to see.

I value my correspondence with writers...I was in New York and had lunch with Oliver Sachs and compared notes with him - he is someone I really like. I love staying in written correspondence with some writers. That's enough for me.

In this world, time has three dimensions, like space. Just as an object may move in three perpendicular directions, corresponding to horizontal, vertical, and longitudinal, so an object may participate in three perpendicular futures. Each future moves in a different direction of time. Each future is real. At every point of decision, the world splits into three worlds, each with the same people, but different fates for those people. In time, there are an infinity of worlds.

In a world of fixed future, life is an infinite corridor of rooms, one room lit at each moment, the next room dark but prepared. We walk from room to room, look into the room that is lit, the present moment, then walk on. We do not know the rooms ahead, but we know we cannot change them. We are spectators of our lives.

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.

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.