I’ll also cast my vote for most hard sci-fi. My exceptionally fundamentalist parents tried to keep me from reading fiction of any sort, particularly sci-fi and fantasy. Once I managed to get my own library card it was all over pretty quickly. In particular I recall being impressed by Heinlein’s protagonist’s stubborn individualism and resistance to dogma.
I’ll also cast my vote for most hard sci-fi. My exceptionally fundamentalist parents tried to keep me from reading fiction of any sort, particularly sci-fi and fantasy. Once I managed to get my own library card it was all over pretty quickly. In particular I recall being impressed by Heinlein’s protagonist’s stubborn individualism and resistance to dogma.