In a movie, it's often important to have aliens whose gestures and facial expressions can be 'read' by humans. And in the days before sophisticated computer animation, most extraterrestrial bit players were guys in rubber suits. Such practical considerations forced… — Seth Shostak Copy Share Image
“minds, who can show the rest of us what is important about the aliens’ differences. So Trixia’s” — Vernor Vinge Copy Share Image
