I enjoyed it well enough, but not a rich story at all. Mostly dialogue, little world building, reads like a series of mystery short stories. One of those sci fi classics that deserves to be revered for its influence and originality at the time, but not an enthralling read in 2020. Written from 1941-1951, and was prescient, given that nuclear power or weapons hadn’t been demonstrated yet. Psychohistory is a cool idea, since refuted by chaos theory.