Science fiction these days is only half a step ahead of science. Astrophysicists and scientists are working in the same way as science fiction writers. They're working things out in their imagination based on the slim scientific facts that they know. Hawking imagines a black hole and then discovers the mathematics that support his theory, and new possibilities come to light. That's the imaginative flair that scientists have to have. For me as a sci-fi writer, spinning those ideas in your mind brings you to the point where you dream in science fiction. Suddenly you think of something in the middle of the night, and it's so vivid you don't need to write it down because you know you'll remember it in the morning. That's what these books, Zero G, reflect: a vivid imagination.