110 years ago it was WW1, then it was WW2, then postwar euphoria. Then it was Democracy vs Commies, golden age, space race, rise of Hollywood, disco, fast cars, cheap housing, economy booming.
What is there now? Everybody is scared shitless of war (and for a good reason), economy is not doing good a small guy (only for trillion dollar behemoths), space race is dead. Mindless scrolling, degradation and grinding are the only things left.