Question: Psychohistory is a fictional science in which Isaac Asimov science fiction book series which combines history, sociology and mathematical statistics to make predictions about the future behaviour of very large groups of people and most notably described in his trilogy series which won him the Hugo award and which reference other works by the author including 'Robot' and 'Empire'?
Sentence (from "The Hugo Winners"): Additionally, he discusses his political beliefs (he supported the ending of the Vietnam War, while Poul Anderson didn't), friendships, and his affinity for writers of "hard science fiction".
Relevant evidence: No