Harvey V. Fineberg

When you're dealing with a problem as complex as autism, you have to look at it from many different points of view and assemble evidence from many different vantage points. Biological evidence in humans and in animals, toxicologic evidence, how does the body deal with toxins, and evidence looking at the actual experience in populations.

We've gone from a preponderance of acute and infectious disease as a source of premature death to chronic diseases, which are the preponderance of the burden of illness in most of the world. That puts a much higher premium on the prevention of chronic disease than ever in history.

The historical novelist has to consider what has actually happened, while the SF writer is dealing in possibilities, but they are both in the business of imagining a world unlike our own and yet connected to it.