I mean it very famously was lol. But ok. I guess that specific period of time where the world lived in constant fear of nuclear annihilation, where schoolchildren were put through drills in school to shelter themselves from nuclear blasts, young men were being conscripted and sent off to war against their will, widespread social upheaval and civil unrest, and a wave of unprecedented political violence culminating in the public assassination of a sitting US President was full of… optimism