[1980s] Mass Nostalgia trend (50s to 80s, 80s to 2010s)

I find it funny how in the 80s, there was mass nostalgia for the 50s and in 2010s there was mass nostalgia for the 80s.

Both exactly 40 years apart. The same thing happened in the 90s/2000s for the 60s/70s.

Now in the 2020s we kinda have a mass nostliga for the 2000s but its not as big as the 80s was in the 2010s. We don't see a lot of movies and tv shows take place in the 2000s, its more of a fashion thing really.