I’m a bit older than you and gotta disagree one one point. The 50s was NOT an optomistic time for American SciFi. With the exception of “Forbidden Planet”, which heavily influenced TOS, 50s SciFi was dominated by paranoia, repression & fatalism. There were monsters under every rock. Our inability to control ourselves and our technology was dooming our future. The early 60s TOS was an optomistic breath of fresh air. Maybe we wouldn’t blow ourselves up after all