pop culture recycles every 20 years

this is most evident with late 1970s and early 80s somehow replicating in the late 1990s and early 2000s.

the 90s has also come back this decade, both musically and fashionably.

the 80s made new waves in the noughties.

Grease was released in 1978. That 70s show aired in the late 90s.

60s didn't come back though as the 80s continued the repeat of the 50s.

will noughties come back in 2020?