I very much enjoyed watching "I love the 80s" which was some silly documentary about the 1980s culture on VH1 . People liked it so much that they made another "I love the 90s".
I was thinking of a plausible FM radio station that plays music, but the station had to play music that was released in an interval of history spanning only 20 years.
After much thought, I concluded the following :
RADIO MOD P. Would only be allowed to play music from 1998 to 2018.
RADIO EIGHT-EIGHT Would only play music from 1975 to 1995.
It's pretty to clear to me. Radio Mod P would go under as a station. In contrast, Radio 8-8 would be wildly successful, and frankly I would enjoy listening to it.
Not only could you play any and all hairband songs ever written, you would get (essentially) all of Micheal Jackson's career output Radio 8-8 could play the entire corpus of Seattle Grunge music, from Nirvana to Pearl Jam. 1975 was chosen , as it was the release year of Bohemian Rhapsody by Queen.
Today it is 2018, and hindsight is clear. There may be something wrong with popular music today (in the USA). It's hard to put one's finger on it, but we might illustrate the "problem" with this exercise.