Progress and Judge Hardy's Generation
There is a scene in the movie where Andy and Jude Hardy discuss the fact that Cars and Airplanes didn't exist when Judge Hardy was young. He even states that Man didn't fly until he was an adult.
I think his was the generation that experienced the most change from progress. If you take a yardstick of 50 years 1888-1938 the change in day-to-day life is dramatic. But for the current older generation: 1968-2018 doesn't seem as dramatic.