when i take a look into history ...
in 70' music was a continuous revolution, were created many music styles then, not only one ...
Miles Davis created then at least 3 different music styles, Jimi Hendrix reinvented guitar playing, Allan Holdsworth created his atonal very distinctive style ... rock achieved it's peack, from Beatles, Led Zeppelin, Deep Purple ... funk was the "pop" music of that time (Earth, Wind and Fire)
then came 80's ... the lamest years ... Boy George, Rick Astley, Beach Boys, Cindy Lauper ... can you think of something worse ? even rock turned ... pop (aka glam rock), just listen to "rock hits" from that era ...
ok...long post
my point is, there are periods in history when things goes up and periods when things goes down
we might try to make revolutions, but what is to come will come at the right moment ... i think, but i might be wrong