Charles Platt

At 3-D Imax theaters, audiences have shown they are willing to pay a premium to wear headgear fitted with liquid-crystal lenses synchronized via infrared signals with the movie projector, which runs at twice the normal frame rate. These movie viewers plumb new depths in depth perception - they experience extreme realism.

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.