Siri Hustvedt

As one of four daughters, I grew up with an imaginary brother - wondering what it would have been like if one of us had been a boy. There's no question that there was a phantom boy child in my imagination when I was young.

Both depression and anxiety disorders, for example, are repeatedly described in the media as 'chemical imbalances in the brain,' as if spontaneous neural events with no relation to anything outside a person's brain cause depression and anxiety.

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.